/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/trex02-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-fb4f59a-m [2022-04-27 10:20:49,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-27 10:20:49,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-27 10:20:49,293 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-27 10:20:49,294 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-27 10:20:49,295 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-27 10:20:49,296 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-27 10:20:49,297 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-27 10:20:49,298 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-27 10:20:49,299 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-27 10:20:49,300 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-27 10:20:49,300 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-27 10:20:49,301 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-27 10:20:49,302 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-27 10:20:49,302 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-27 10:20:49,303 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-27 10:20:49,304 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-27 10:20:49,304 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-27 10:20:49,306 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-27 10:20:49,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-27 10:20:49,308 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-27 10:20:49,309 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-27 10:20:49,309 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-27 10:20:49,310 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-27 10:20:49,311 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-27 10:20:49,313 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-27 10:20:49,313 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-27 10:20:49,313 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-27 10:20:49,314 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-27 10:20:49,314 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-27 10:20:49,315 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-27 10:20:49,315 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-27 10:20:49,316 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-27 10:20:49,316 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-27 10:20:49,317 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-27 10:20:49,317 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-27 10:20:49,318 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-27 10:20:49,318 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-27 10:20:49,318 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-27 10:20:49,318 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-27 10:20:49,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-27 10:20:49,320 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-27 10:20:49,320 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 [2022-04-27 10:20:49,340 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-27 10:20:49,340 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-27 10:20:49,340 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-27 10:20:49,340 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-27 10:20:49,341 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-27 10:20:49,341 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-27 10:20:49,342 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-27 10:20:49,342 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-27 10:20:49,342 INFO L138 SettingsManager]: * Use SBE=true [2022-04-27 10:20:49,342 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-27 10:20:49,342 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-27 10:20:49,342 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-27 10:20:49,343 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-27 10:20:49,343 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-27 10:20:49,348 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-27 10:20:49,348 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-27 10:20:49,348 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-27 10:20:49,348 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-27 10:20:49,348 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-27 10:20:49,349 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-27 10:20:49,349 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-27 10:20:49,349 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-27 10:20:49,349 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-27 10:20:49,349 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-27 10:20:49,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-27 10:20:49,350 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-27 10:20:49,350 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-27 10:20:49,350 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-27 10:20:49,350 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-27 10:20:49,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-27 10:20:49,351 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-04-27 10:20:49,351 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-27 10:20:49,351 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-27 10:20:49,351 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-27 10:20:49,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-27 10:20:49,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-27 10:20:49,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-27 10:20:49,532 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-27 10:20:49,533 INFO L275 PluginConnector]: CDTParser initialized [2022-04-27 10:20:49,534 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/trex02-2.c [2022-04-27 10:20:49,597 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff686550e/b8055063d1a945df81563ab168223120/FLAG86d9c416f [2022-04-27 10:20:49,915 INFO L306 CDTParser]: Found 1 translation units. [2022-04-27 10:20:49,916 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/trex02-2.c [2022-04-27 10:20:49,920 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff686550e/b8055063d1a945df81563ab168223120/FLAG86d9c416f [2022-04-27 10:20:50,358 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff686550e/b8055063d1a945df81563ab168223120 [2022-04-27 10:20:50,362 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-27 10:20:50,363 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-27 10:20:50,366 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-27 10:20:50,366 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-27 10:20:50,368 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-27 10:20:50,369 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.04 10:20:50" (1/1) ... [2022-04-27 10:20:50,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@445b5448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 10:20:50, skipping insertion in model container [2022-04-27 10:20:50,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.04 10:20:50" (1/1) ... [2022-04-27 10:20:50,375 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-27 10:20:50,383 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-27 10:20:50,558 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/trex02-2.c[320,333] [2022-04-27 10:20:50,578 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-27 10:20:50,588 INFO L203 MainTranslator]: Completed pre-run [2022-04-27 10:20:50,604 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/trex02-2.c[320,333] [2022-04-27 10:20:50,609 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-27 10:20:50,620 INFO L208 MainTranslator]: Completed translation [2022-04-27 10:20:50,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 10:20:50 WrapperNode [2022-04-27 10:20:50,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-27 10:20:50,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-27 10:20:50,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-27 10:20:50,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-27 10:20:50,627 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 10:20:50" (1/1) ... [2022-04-27 10:20:50,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 10:20:50" (1/1) ... [2022-04-27 10:20:50,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 10:20:50" (1/1) ... [2022-04-27 10:20:50,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 10:20:50" (1/1) ... [2022-04-27 10:20:50,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 10:20:50" (1/1) ... [2022-04-27 10:20:50,646 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 10:20:50" (1/1) ... [2022-04-27 10:20:50,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 10:20:50" (1/1) ... [2022-04-27 10:20:50,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-27 10:20:50,654 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-27 10:20:50,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-27 10:20:50,654 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-27 10:20:50,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 10:20:50" (1/1) ... [2022-04-27 10:20:50,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-27 10:20:50,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-27 10:20:50,683 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) [2022-04-27 10:20:50,705 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 [2022-04-27 10:20:50,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-27 10:20:50,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-27 10:20:50,720 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-27 10:20:50,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-27 10:20:50,721 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2022-04-27 10:20:50,721 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-27 10:20:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-27 10:20:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-27 10:20:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-27 10:20:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-27 10:20:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-27 10:20:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2022-04-27 10:20:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-27 10:20:50,722 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2022-04-27 10:20:50,722 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-27 10:20:50,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-27 10:20:50,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-27 10:20:50,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-27 10:20:50,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-27 10:20:50,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-27 10:20:50,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-27 10:20:50,771 INFO L234 CfgBuilder]: Building ICFG [2022-04-27 10:20:50,772 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-27 10:20:50,849 INFO L275 CfgBuilder]: Performing block encoding [2022-04-27 10:20:50,854 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-27 10:20:50,855 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-27 10:20:50,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.04 10:20:50 BoogieIcfgContainer [2022-04-27 10:20:50,856 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-27 10:20:50,858 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-27 10:20:50,858 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-27 10:20:50,866 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-27 10:20:50,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.04 10:20:50" (1/3) ... [2022-04-27 10:20:50,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a0f5db6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.04 10:20:50, skipping insertion in model container [2022-04-27 10:20:50,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 10:20:50" (2/3) ... [2022-04-27 10:20:50,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a0f5db6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.04 10:20:50, skipping insertion in model container [2022-04-27 10:20:50,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.04 10:20:50" (3/3) ... [2022-04-27 10:20:50,868 INFO L111 eAbstractionObserver]: Analyzing ICFG trex02-2.c [2022-04-27 10:20:50,895 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-27 10:20:50,896 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-27 10:20:50,956 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-27 10:20:50,962 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@ac19423, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@26296c80 [2022-04-27 10:20:50,962 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-27 10:20:50,969 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 16 states have internal predecessors, (18), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-27 10:20:50,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-27 10:20:50,974 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 10:20:50,974 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 10:20:50,974 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 10:20:50,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 10:20:50,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1589172536, now seen corresponding path program 1 times [2022-04-27 10:20:50,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 10:20:50,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099385821] [2022-04-27 10:20:50,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 10:20:50,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 10:20:51,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 10:20:51,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-27 10:20:51,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 10:20:51,211 INFO L290 TraceCheckUtils]: 0: Hoare triple {32#(and (= ~x~0 |old(~x~0)|) (= |#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);~x~0 := 0; {27#true} is VALID [2022-04-27 10:20:51,211 INFO L290 TraceCheckUtils]: 1: Hoare triple {27#true} assume true; {27#true} is VALID [2022-04-27 10:20:51,211 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {27#true} {27#true} #50#return; {27#true} is VALID [2022-04-27 10:20:51,215 INFO L272 TraceCheckUtils]: 0: Hoare triple {27#true} call ULTIMATE.init(); {32#(and (= ~x~0 |old(~x~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-27 10:20:51,215 INFO L290 TraceCheckUtils]: 1: Hoare triple {32#(and (= ~x~0 |old(~x~0)|) (= |#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);~x~0 := 0; {27#true} is VALID [2022-04-27 10:20:51,215 INFO L290 TraceCheckUtils]: 2: Hoare triple {27#true} assume true; {27#true} is VALID [2022-04-27 10:20:51,216 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {27#true} {27#true} #50#return; {27#true} is VALID [2022-04-27 10:20:51,216 INFO L272 TraceCheckUtils]: 4: Hoare triple {27#true} call #t~ret7 := main(); {27#true} is VALID [2022-04-27 10:20:51,216 INFO L290 TraceCheckUtils]: 5: Hoare triple {27#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~x~0 := #t~nondet5;havoc #t~nondet5; {27#true} is VALID [2022-04-27 10:20:51,217 INFO L290 TraceCheckUtils]: 6: Hoare triple {27#true} assume !true; {28#false} is VALID [2022-04-27 10:20:51,217 INFO L272 TraceCheckUtils]: 7: Hoare triple {28#false} call __VERIFIER_assert((if 0 == ~x~0 then 1 else 0)); {28#false} is VALID [2022-04-27 10:20:51,217 INFO L290 TraceCheckUtils]: 8: Hoare triple {28#false} ~cond := #in~cond; {28#false} is VALID [2022-04-27 10:20:51,218 INFO L290 TraceCheckUtils]: 9: Hoare triple {28#false} assume 0 == ~cond; {28#false} is VALID [2022-04-27 10:20:51,218 INFO L290 TraceCheckUtils]: 10: Hoare triple {28#false} assume !false; {28#false} is VALID [2022-04-27 10:20:51,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-27 10:20:51,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-27 10:20:51,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099385821] [2022-04-27 10:20:51,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099385821] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-27 10:20:51,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-27 10:20:51,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-27 10:20:51,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863228627] [2022-04-27 10:20:51,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-27 10:20:51,229 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 [2022-04-27 10:20:51,230 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-27 10:20:51,233 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) [2022-04-27 10:20:51,257 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 10:20:51,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-27 10:20:51,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-27 10:20:51,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-27 10:20:51,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-27 10:20:51,283 INFO L87 Difference]: Start difference. First operand has 24 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 16 states have internal predecessors, (18), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) 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) [2022-04-27 10:20:51,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 10:20:51,357 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2022-04-27 10:20:51,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-27 10:20:51,357 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 [2022-04-27 10:20:51,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-27 10:20:51,359 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) [2022-04-27 10:20:51,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 40 transitions. [2022-04-27 10:20:51,364 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) [2022-04-27 10:20:51,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 40 transitions. [2022-04-27 10:20:51,367 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 40 transitions. [2022-04-27 10:20:51,406 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 40 edges. 40 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 10:20:51,412 INFO L225 Difference]: With dead ends: 35 [2022-04-27 10:20:51,412 INFO L226 Difference]: Without dead ends: 18 [2022-04-27 10:20:51,414 INFO L412 NwaCegarLoop]: 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 [2022-04-27 10:20:51,417 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 5 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-27 10:20:51,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 29 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-27 10:20:51,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-04-27 10:20:51,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-04-27 10:20:51,440 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-27 10:20:51,441 INFO L82 GeneralOperation]: Start isEquivalent. First operand 18 states. Second operand has 18 states, 10 states have (on average 1.2) internal successors, (12), 12 states have internal predecessors, (12), 5 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-27 10:20:51,442 INFO L74 IsIncluded]: Start isIncluded. First operand 18 states. Second operand has 18 states, 10 states have (on average 1.2) internal successors, (12), 12 states have internal predecessors, (12), 5 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-27 10:20:51,442 INFO L87 Difference]: Start difference. First operand 18 states. Second operand has 18 states, 10 states have (on average 1.2) internal successors, (12), 12 states have internal predecessors, (12), 5 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-27 10:20:51,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 10:20:51,445 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2022-04-27 10:20:51,445 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-04-27 10:20:51,445 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 10:20:51,445 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 10:20:51,446 INFO L74 IsIncluded]: Start isIncluded. First operand has 18 states, 10 states have (on average 1.2) internal successors, (12), 12 states have internal predecessors, (12), 5 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Second operand 18 states. [2022-04-27 10:20:51,446 INFO L87 Difference]: Start difference. First operand has 18 states, 10 states have (on average 1.2) internal successors, (12), 12 states have internal predecessors, (12), 5 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Second operand 18 states. [2022-04-27 10:20:51,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 10:20:51,448 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2022-04-27 10:20:51,449 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-04-27 10:20:51,449 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 10:20:51,449 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 10:20:51,449 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-27 10:20:51,449 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-27 10:20:51,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 10 states have (on average 1.2) internal successors, (12), 12 states have internal predecessors, (12), 5 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-27 10:20:51,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2022-04-27 10:20:51,452 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 11 [2022-04-27 10:20:51,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-27 10:20:51,453 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2022-04-27 10:20:51,453 INFO L496 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) [2022-04-27 10:20:51,453 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-04-27 10:20:51,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-27 10:20:51,454 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 10:20:51,454 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 10:20:51,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-27 10:20:51,454 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 10:20:51,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 10:20:51,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1578090284, now seen corresponding path program 1 times [2022-04-27 10:20:51,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 10:20:51,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588843632] [2022-04-27 10:20:51,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 10:20:51,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 10:20:51,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-27 10:20:51,483 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-27 10:20:51,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-27 10:20:51,518 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-04-27 10:20:51,519 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-04-27 10:20:51,522 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-27 10:20:51,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-27 10:20:51,526 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-04-27 10:20:51,529 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-04-27 10:20:51,548 WARN L170 areAnnotationChecker]: reach_errorENTRY has no Hoare annotation [2022-04-27 10:20:51,548 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2022-04-27 10:20:51,548 WARN L170 areAnnotationChecker]: fooENTRY has no Hoare annotation [2022-04-27 10:20:51,548 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-04-27 10:20:51,549 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-04-27 10:20:51,549 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2022-04-27 10:20:51,549 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2022-04-27 10:20:51,549 WARN L170 areAnnotationChecker]: reach_errorFINAL has no Hoare annotation [2022-04-27 10:20:51,549 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-27 10:20:51,549 WARN L170 areAnnotationChecker]: fooFINAL has no Hoare annotation [2022-04-27 10:20:51,550 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-04-27 10:20:51,550 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-04-27 10:20:51,550 WARN L170 areAnnotationChecker]: L26-1 has no Hoare annotation [2022-04-27 10:20:51,550 WARN L170 areAnnotationChecker]: L26-1 has no Hoare annotation [2022-04-27 10:20:51,550 WARN L170 areAnnotationChecker]: L26-1 has no Hoare annotation [2022-04-27 10:20:51,550 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2022-04-27 10:20:51,550 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2022-04-27 10:20:51,550 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2022-04-27 10:20:51,550 WARN L170 areAnnotationChecker]: fooEXIT has no Hoare annotation [2022-04-27 10:20:51,551 WARN L170 areAnnotationChecker]: fooEXIT has no Hoare annotation [2022-04-27 10:20:51,551 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-04-27 10:20:51,551 WARN L170 areAnnotationChecker]: L23-2 has no Hoare annotation [2022-04-27 10:20:51,551 WARN L170 areAnnotationChecker]: L23-2 has no Hoare annotation [2022-04-27 10:20:51,551 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2022-04-27 10:20:51,551 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2022-04-27 10:20:51,551 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2022-04-27 10:20:51,551 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2022-04-27 10:20:51,551 WARN L170 areAnnotationChecker]: L6-2 has no Hoare annotation [2022-04-27 10:20:51,551 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2022-04-27 10:20:51,551 WARN L170 areAnnotationChecker]: L25-1 has no Hoare annotation [2022-04-27 10:20:51,551 WARN L170 areAnnotationChecker]: L25-1 has no Hoare annotation [2022-04-27 10:20:51,551 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2022-04-27 10:20:51,552 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2022-04-27 10:20:51,552 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-27 10:20:51,552 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2022-04-27 10:20:51,552 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. [2022-04-27 10:20:51,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.04 10:20:51 BoogieIcfgContainer [2022-04-27 10:20:51,553 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-27 10:20:51,555 INFO L158 Benchmark]: Toolchain (without parser) took 1191.12ms. Allocated memory is still 182.5MB. Free memory was 129.0MB in the beginning and 106.9MB in the end (delta: 22.2MB). Peak memory consumption was 21.6MB. Max. memory is 8.0GB. [2022-04-27 10:20:51,555 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 182.5MB. Free memory is still 145.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-27 10:20:51,556 INFO L158 Benchmark]: CACSL2BoogieTranslator took 254.95ms. Allocated memory is still 182.5MB. Free memory was 128.8MB in the beginning and 156.9MB in the end (delta: -28.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-04-27 10:20:51,559 INFO L158 Benchmark]: Boogie Preprocessor took 31.96ms. Allocated memory is still 182.5MB. Free memory was 156.9MB in the beginning and 155.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-27 10:20:51,559 INFO L158 Benchmark]: RCFGBuilder took 202.55ms. Allocated memory is still 182.5MB. Free memory was 155.4MB in the beginning and 145.3MB in the end (delta: 10.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-04-27 10:20:51,561 INFO L158 Benchmark]: TraceAbstraction took 695.79ms. Allocated memory is still 182.5MB. Free memory was 144.8MB in the beginning and 106.9MB in the end (delta: 37.9MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. [2022-04-27 10:20:51,565 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 0.10ms. Allocated memory is still 182.5MB. Free memory is still 145.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 254.95ms. Allocated memory is still 182.5MB. Free memory was 128.8MB in the beginning and 156.9MB in the end (delta: -28.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.96ms. Allocated memory is still 182.5MB. Free memory was 156.9MB in the beginning and 155.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 202.55ms. Allocated memory is still 182.5MB. Free memory was 155.4MB in the beginning and 145.3MB in the end (delta: 10.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 695.79ms. Allocated memory is still 182.5MB. Free memory was 144.8MB in the beginning and 106.9MB in the end (delta: 37.9MB). Peak memory consumption was 37.7MB. 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: [L15] int x; VAL [\old(x)=50, x=0] [L22] x=__VERIFIER_nondet_int() [L23] COND FALSE !(x > 0) VAL [\old(x)=0, x=-1] [L28] CALL __VERIFIER_assert(x==0) VAL [\old(cond)=0, \old(x)=0, x=-1] [L6] COND TRUE !(cond) VAL [\old(cond)=0, \old(x)=0, cond=0, x=-1] [L7] reach_error() VAL [\old(cond)=0, \old(x)=0, cond=0, x=-1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 25 mSDtfsCounter, 13 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=24occurred 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, 19 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! [2022-04-27 10:20:51,605 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...