/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/for_infinite_loop_2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-5d317bd [2022-03-18 11:39:03,440 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-18 11:39:03,442 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-18 11:39:03,478 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-18 11:39:03,479 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-18 11:39:03,480 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-18 11:39:03,484 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-18 11:39:03,486 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-18 11:39:03,487 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-18 11:39:03,491 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-18 11:39:03,492 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-18 11:39:03,493 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-18 11:39:03,493 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-18 11:39:03,495 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-18 11:39:03,495 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-18 11:39:03,498 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-18 11:39:03,498 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-18 11:39:03,499 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-18 11:39:03,500 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-18 11:39:03,504 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-18 11:39:03,505 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-18 11:39:03,506 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-18 11:39:03,507 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-18 11:39:03,507 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-18 11:39:03,508 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-18 11:39:03,510 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-18 11:39:03,510 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-18 11:39:03,510 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-18 11:39:03,511 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-18 11:39:03,511 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-18 11:39:03,512 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-18 11:39:03,512 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-18 11:39:03,513 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-18 11:39:03,514 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-18 11:39:03,514 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-18 11:39:03,514 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-18 11:39:03,515 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-18 11:39:03,515 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-18 11:39:03,515 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-18 11:39:03,515 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-18 11:39:03,516 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-18 11:39:03,517 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-18 11:39:03,517 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 [2022-03-18 11:39:03,539 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-18 11:39:03,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-18 11:39:03,540 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-18 11:39:03,540 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-18 11:39:03,541 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-18 11:39:03,541 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-18 11:39:03,542 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-18 11:39:03,542 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-18 11:39:03,542 INFO L138 SettingsManager]: * Use SBE=true [2022-03-18 11:39:03,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-18 11:39:03,543 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-18 11:39:03,543 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-18 11:39:03,543 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-18 11:39:03,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-18 11:39:03,543 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-18 11:39:03,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-18 11:39:03,543 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-18 11:39:03,544 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-18 11:39:03,544 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-18 11:39:03,544 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-18 11:39:03,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-18 11:39:03,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-18 11:39:03,545 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-18 11:39:03,545 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-18 11:39:03,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 11:39:03,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-18 11:39:03,545 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-18 11:39:03,545 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-18 11:39:03,545 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-18 11:39:03,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-18 11:39:03,545 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-18 11:39:03,546 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-03-18 11:39:03,546 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-18 11:39:03,546 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-18 11:39:03,740 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-18 11:39:03,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-18 11:39:03,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-18 11:39:03,774 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-18 11:39:03,774 INFO L275 PluginConnector]: CDTParser initialized [2022-03-18 11:39:03,775 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/for_infinite_loop_2.c [2022-03-18 11:39:03,827 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35a47a288/5e17fec2e58748829ed07c53e3d463c2/FLAG83f938507 [2022-03-18 11:39:04,169 INFO L306 CDTParser]: Found 1 translation units. [2022-03-18 11:39:04,170 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/for_infinite_loop_2.c [2022-03-18 11:39:04,173 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35a47a288/5e17fec2e58748829ed07c53e3d463c2/FLAG83f938507 [2022-03-18 11:39:04,187 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35a47a288/5e17fec2e58748829ed07c53e3d463c2 [2022-03-18 11:39:04,189 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-18 11:39:04,190 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-18 11:39:04,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-18 11:39:04,191 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-18 11:39:04,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-18 11:39:04,193 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 11:39:04" (1/1) ... [2022-03-18 11:39:04,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@133a7421 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 11:39:04, skipping insertion in model container [2022-03-18 11:39:04,194 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 11:39:04" (1/1) ... [2022-03-18 11:39:04,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-18 11:39:04,206 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-18 11:39:04,324 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/for_infinite_loop_2.c[418,431] [2022-03-18 11:39:04,332 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 11:39:04,337 INFO L203 MainTranslator]: Completed pre-run [2022-03-18 11:39:04,344 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/for_infinite_loop_2.c[418,431] [2022-03-18 11:39:04,346 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 11:39:04,354 INFO L208 MainTranslator]: Completed translation [2022-03-18 11:39:04,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 11:39:04 WrapperNode [2022-03-18 11:39:04,354 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-18 11:39:04,355 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-18 11:39:04,355 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-18 11:39:04,355 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-18 11:39:04,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 11:39:04" (1/1) ... [2022-03-18 11:39:04,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 11:39:04" (1/1) ... [2022-03-18 11:39:04,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 11:39:04" (1/1) ... [2022-03-18 11:39:04,366 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 11:39:04" (1/1) ... [2022-03-18 11:39:04,368 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 11:39:04" (1/1) ... [2022-03-18 11:39:04,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 11:39:04" (1/1) ... [2022-03-18 11:39:04,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 11:39:04" (1/1) ... [2022-03-18 11:39:04,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-18 11:39:04,372 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-18 11:39:04,372 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-18 11:39:04,372 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-18 11:39:04,373 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 11:39:04" (1/1) ... [2022-03-18 11:39:04,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 11:39:04,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 11:39:04,394 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) [2022-03-18 11:39:04,410 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 [2022-03-18 11:39:04,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-18 11:39:04,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-18 11:39:04,422 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-18 11:39:04,422 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-03-18 11:39:04,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-03-18 11:39:04,423 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-18 11:39:04,423 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-18 11:39:04,423 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-18 11:39:04,423 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-18 11:39:04,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-18 11:39:04,423 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-03-18 11:39:04,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-18 11:39:04,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-18 11:39:04,423 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-18 11:39:04,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-18 11:39:04,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-18 11:39:04,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-18 11:39:04,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-18 11:39:04,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-18 11:39:04,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-18 11:39:04,465 INFO L234 CfgBuilder]: Building ICFG [2022-03-18 11:39:04,466 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-18 11:39:04,581 INFO L275 CfgBuilder]: Performing block encoding [2022-03-18 11:39:04,600 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-18 11:39:04,600 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-18 11:39:04,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 11:39:04 BoogieIcfgContainer [2022-03-18 11:39:04,601 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-18 11:39:04,603 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-18 11:39:04,603 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-18 11:39:04,605 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-18 11:39:04,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.03 11:39:04" (1/3) ... [2022-03-18 11:39:04,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@190a6987 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 11:39:04, skipping insertion in model container [2022-03-18 11:39:04,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 11:39:04" (2/3) ... [2022-03-18 11:39:04,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@190a6987 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 11:39:04, skipping insertion in model container [2022-03-18 11:39:04,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 11:39:04" (3/3) ... [2022-03-18 11:39:04,607 INFO L111 eAbstractionObserver]: Analyzing ICFG for_infinite_loop_2.c [2022-03-18 11:39:04,611 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-18 11:39:04,611 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-18 11:39:04,675 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-18 11:39:04,680 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 [2022-03-18 11:39:04,680 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-18 11:39:04,701 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 14 states have internal predecessors, (17), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-03-18 11:39:04,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-03-18 11:39:04,711 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 11:39:04,711 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 11:39:04,713 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 11:39:04,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 11:39:04,721 INFO L85 PathProgramCache]: Analyzing trace with hash -782341743, now seen corresponding path program 1 times [2022-03-18 11:39:04,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 11:39:04,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974994235] [2022-03-18 11:39:04,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 11:39:04,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 11:39:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 11:39:04,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 11:39:04,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 11:39:04,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 11:39:04,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 11:39:04,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974994235] [2022-03-18 11:39:04,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974994235] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 11:39:04,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 11:39:04,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-18 11:39:04,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661996011] [2022-03-18 11:39:04,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 11:39:04,891 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-18 11:39:04,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 11:39:04,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-18 11:39:04,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-18 11:39:04,916 INFO L87 Difference]: Start difference. First operand has 21 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 14 states have internal predecessors, (17), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-03-18 11:39:04,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 11:39:04,959 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2022-03-18 11:39:04,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-18 11:39:04,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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 12 [2022-03-18 11:39:04,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 11:39:04,966 INFO L225 Difference]: With dead ends: 34 [2022-03-18 11:39:04,966 INFO L226 Difference]: Without dead ends: 16 [2022-03-18 11:39:04,971 INFO L911 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 [2022-03-18 11:39:04,975 INFO L912 BasicCegarLoop]: 19 mSDtfsCounter, 11 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 22 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 [2022-03-18 11:39:04,977 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 22 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-18 11:39:04,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-03-18 11:39:05,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-03-18 11:39:05,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-03-18 11:39:05,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2022-03-18 11:39:05,004 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 12 [2022-03-18 11:39:05,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 11:39:05,004 INFO L478 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-03-18 11:39:05,005 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-03-18 11:39:05,005 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-03-18 11:39:05,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-03-18 11:39:05,005 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 11:39:05,005 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 11:39:05,006 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-18 11:39:05,006 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 11:39:05,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 11:39:05,009 INFO L85 PathProgramCache]: Analyzing trace with hash -780554283, now seen corresponding path program 1 times [2022-03-18 11:39:05,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 11:39:05,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581801840] [2022-03-18 11:39:05,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 11:39:05,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 11:39:05,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 11:39:05,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 11:39:05,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 11:39:05,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 11:39:05,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 11:39:05,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581801840] [2022-03-18 11:39:05,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581801840] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 11:39:05,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 11:39:05,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-18 11:39:05,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289074598] [2022-03-18 11:39:05,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 11:39:05,123 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-18 11:39:05,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 11:39:05,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-18 11:39:05,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-18 11:39:05,125 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-03-18 11:39:05,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 11:39:05,182 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-03-18 11:39:05,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-18 11:39:05,183 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 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 12 [2022-03-18 11:39:05,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 11:39:05,184 INFO L225 Difference]: With dead ends: 16 [2022-03-18 11:39:05,184 INFO L226 Difference]: Without dead ends: 0 [2022-03-18 11:39:05,188 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-18 11:39:05,189 INFO L912 BasicCegarLoop]: 11 mSDtfsCounter, 13 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-18 11:39:05,190 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 28 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-18 11:39:05,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-18 11:39:05,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-18 11:39:05,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-18 11:39:05,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-18 11:39:05,191 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2022-03-18 11:39:05,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 11:39:05,191 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-18 11:39:05,191 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-03-18 11:39:05,191 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-18 11:39:05,191 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-18 11:39:05,195 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-18 11:39:05,195 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-18 11:39:05,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-03-18 11:39:05,231 INFO L882 garLoopResultBuilder]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2022-03-18 11:39:05,232 INFO L882 garLoopResultBuilder]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2022-03-18 11:39:05,232 INFO L882 garLoopResultBuilder]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2022-03-18 11:39:05,232 INFO L882 garLoopResultBuilder]: For program point assume_abort_if_notENTRY(lines 6 8) no Hoare annotation was computed. [2022-03-18 11:39:05,232 INFO L882 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2022-03-18 11:39:05,232 INFO L882 garLoopResultBuilder]: For program point L7-2(lines 6 8) no Hoare annotation was computed. [2022-03-18 11:39:05,232 INFO L882 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 6 8) no Hoare annotation was computed. [2022-03-18 11:39:05,232 INFO L885 garLoopResultBuilder]: At program point mainENTRY(lines 18 28) the Hoare annotation is: true [2022-03-18 11:39:05,233 INFO L878 garLoopResultBuilder]: At program point L25(line 25) the Hoare annotation is: (= main_~x~0 0) [2022-03-18 11:39:05,233 INFO L882 garLoopResultBuilder]: For program point mainEXIT(lines 18 28) no Hoare annotation was computed. [2022-03-18 11:39:05,233 INFO L882 garLoopResultBuilder]: For program point L25-1(lines 23 26) no Hoare annotation was computed. [2022-03-18 11:39:05,233 INFO L882 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2022-03-18 11:39:05,233 INFO L878 garLoopResultBuilder]: At program point L23-2(lines 23 26) the Hoare annotation is: (= main_~x~0 0) [2022-03-18 11:39:05,233 INFO L878 garLoopResultBuilder]: At program point L23-3(lines 23 26) the Hoare annotation is: false [2022-03-18 11:39:05,233 INFO L882 garLoopResultBuilder]: For program point mainFINAL(lines 18 28) no Hoare annotation was computed. [2022-03-18 11:39:05,233 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2022-03-18 11:39:05,233 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-03-18 11:39:05,234 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2022-03-18 11:39:05,234 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-03-18 11:39:05,234 INFO L885 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-03-18 11:39:05,234 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-03-18 11:39:05,234 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-03-18 11:39:05,234 INFO L885 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 9 14) the Hoare annotation is: true [2022-03-18 11:39:05,234 INFO L882 garLoopResultBuilder]: For program point L11(line 11) no Hoare annotation was computed. [2022-03-18 11:39:05,234 INFO L882 garLoopResultBuilder]: For program point L10(lines 10 12) no Hoare annotation was computed. [2022-03-18 11:39:05,234 INFO L882 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 9 14) no Hoare annotation was computed. [2022-03-18 11:39:05,234 INFO L882 garLoopResultBuilder]: For program point L10-2(lines 9 14) no Hoare annotation was computed. [2022-03-18 11:39:05,235 INFO L882 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2022-03-18 11:39:05,237 INFO L718 BasicCegarLoop]: Path program histogram: [1, 1] [2022-03-18 11:39:05,238 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-18 11:39:05,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.03 11:39:05 BoogieIcfgContainer [2022-03-18 11:39:05,252 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-18 11:39:05,252 INFO L158 Benchmark]: Toolchain (without parser) took 1062.19ms. Allocated memory is still 188.7MB. Free memory was 161.5MB in the beginning and 119.1MB in the end (delta: 42.5MB). Peak memory consumption was 42.5MB. Max. memory is 8.0GB. [2022-03-18 11:39:05,253 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 188.7MB. Free memory is still 149.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-18 11:39:05,259 INFO L158 Benchmark]: CACSL2BoogieTranslator took 163.73ms. Allocated memory is still 188.7MB. Free memory was 161.3MB in the beginning and 163.1MB in the end (delta: -1.9MB). Peak memory consumption was 10.0MB. Max. memory is 8.0GB. [2022-03-18 11:39:05,259 INFO L158 Benchmark]: Boogie Preprocessor took 16.77ms. Allocated memory is still 188.7MB. Free memory was 163.1MB in the beginning and 161.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-18 11:39:05,260 INFO L158 Benchmark]: RCFGBuilder took 229.28ms. Allocated memory is still 188.7MB. Free memory was 161.7MB in the beginning and 151.9MB in the end (delta: 9.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-18 11:39:05,262 INFO L158 Benchmark]: TraceAbstraction took 649.37ms. Allocated memory is still 188.7MB. Free memory was 151.6MB in the beginning and 119.1MB in the end (delta: 32.5MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. [2022-03-18 11:39:05,264 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 188.7MB. Free memory is still 149.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 163.73ms. Allocated memory is still 188.7MB. Free memory was 161.3MB in the beginning and 163.1MB in the end (delta: -1.9MB). Peak memory consumption was 10.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 16.77ms. Allocated memory is still 188.7MB. Free memory was 163.1MB in the beginning and 161.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 229.28ms. Allocated memory is still 188.7MB. Free memory was 161.7MB in the beginning and 151.9MB in the end (delta: 9.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 649.37ms. Allocated memory is still 188.7MB. Free memory was 151.6MB in the beginning and 119.1MB in the end (delta: 32.5MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 11]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 28 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, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 50 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 30 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 9, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 10 PreInvPairs, 12 NumberOfFragments, 18 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 46 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: x == 0 RESULT: Ultimate proved your program to be correct! [2022-03-18 11:39:05,292 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...