/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/fib_unsafe-10.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-02 05:24:42,277 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-02 05:24:42,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-02 05:24:42,346 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-02 05:24:42,347 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-02 05:24:42,347 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-02 05:24:42,349 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-02 05:24:42,350 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-02 05:24:42,352 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-02 05:24:42,352 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-02 05:24:42,353 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-02 05:24:42,354 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-02 05:24:42,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-02 05:24:42,359 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-02 05:24:42,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-02 05:24:42,362 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-02 05:24:42,363 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-02 05:24:42,367 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-02 05:24:42,371 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-02 05:24:42,376 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-02 05:24:42,378 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-02 05:24:42,379 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-02 05:24:42,380 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-02 05:24:42,381 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-02 05:24:42,388 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-02 05:24:42,391 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-02 05:24:42,391 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-02 05:24:42,392 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-02 05:24:42,392 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-02 05:24:42,393 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-02 05:24:42,393 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-02 05:24:42,393 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-02 05:24:42,394 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-02 05:24:42,394 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-02 05:24:42,394 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-02 05:24:42,397 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-02 05:24:42,398 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf [2022-03-02 05:24:42,427 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-02 05:24:42,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-02 05:24:42,428 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-02 05:24:42,428 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-02 05:24:42,428 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-02 05:24:42,429 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-02 05:24:42,429 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-02 05:24:42,429 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-02 05:24:42,429 INFO L138 SettingsManager]: * Use SBE=true [2022-03-02 05:24:42,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-02 05:24:42,430 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-02 05:24:42,430 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-02 05:24:42,430 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-02 05:24:42,430 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-02 05:24:42,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-02 05:24:42,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-02 05:24:42,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-02 05:24:42,431 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-02 05:24:42,431 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-02 05:24:42,431 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-02 05:24:42,431 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-02 05:24:42,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-02 05:24:42,431 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-02 05:24:42,432 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-02 05:24:42,432 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-02 05:24:42,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 05:24:42,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-02 05:24:42,432 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-02 05:24:42,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-02 05:24:42,432 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-02 05:24:42,432 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-02 05:24:42,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-02 05:24:42,433 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-02 05:24:42,433 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-02 05:24:42,433 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-02 05:24:42,433 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-02 05:24:42,433 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-02 05:24:42,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-02 05:24:42,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-02 05:24:42,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-02 05:24:42,672 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-02 05:24:42,679 INFO L275 PluginConnector]: CDTParser initialized [2022-03-02 05:24:42,680 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/fib_unsafe-10.i [2022-03-02 05:24:42,737 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e9f3a84f/d0a9f40b8a3c4c938d9fc0429f31478f/FLAG9ea96cf70 [2022-03-02 05:24:43,170 INFO L306 CDTParser]: Found 1 translation units. [2022-03-02 05:24:43,170 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_unsafe-10.i [2022-03-02 05:24:43,186 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e9f3a84f/d0a9f40b8a3c4c938d9fc0429f31478f/FLAG9ea96cf70 [2022-03-02 05:24:43,523 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e9f3a84f/d0a9f40b8a3c4c938d9fc0429f31478f [2022-03-02 05:24:43,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-02 05:24:43,526 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-02 05:24:43,531 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-02 05:24:43,531 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-02 05:24:43,534 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-02 05:24:43,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.03 05:24:43" (1/1) ... [2022-03-02 05:24:43,537 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ffa6458 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 05:24:43, skipping insertion in model container [2022-03-02 05:24:43,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.03 05:24:43" (1/1) ... [2022-03-02 05:24:43,544 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-02 05:24:43,588 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-02 05:24:43,900 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_unsafe-10.i[30813,30826] [2022-03-02 05:24:43,905 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-02 05:24:43,911 INFO L203 MainTranslator]: Completed pre-run [2022-03-02 05:24:43,961 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_unsafe-10.i[30813,30826] [2022-03-02 05:24:43,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-02 05:24:43,993 INFO L208 MainTranslator]: Completed translation [2022-03-02 05:24:43,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 05:24:43 WrapperNode [2022-03-02 05:24:43,994 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-02 05:24:43,995 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-02 05:24:43,995 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-02 05:24:43,995 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-02 05:24:44,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 05:24:43" (1/1) ... [2022-03-02 05:24:44,027 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 05:24:43" (1/1) ... [2022-03-02 05:24:44,049 INFO L137 Inliner]: procedures = 164, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2022-03-02 05:24:44,049 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-02 05:24:44,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-02 05:24:44,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-02 05:24:44,050 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-02 05:24:44,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 05:24:43" (1/1) ... [2022-03-02 05:24:44,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 05:24:43" (1/1) ... [2022-03-02 05:24:44,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 05:24:43" (1/1) ... [2022-03-02 05:24:44,061 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 05:24:43" (1/1) ... [2022-03-02 05:24:44,067 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 05:24:43" (1/1) ... [2022-03-02 05:24:44,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 05:24:43" (1/1) ... [2022-03-02 05:24:44,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 05:24:43" (1/1) ... [2022-03-02 05:24:44,074 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-02 05:24:44,079 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-02 05:24:44,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-02 05:24:44,079 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-02 05:24:44,081 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 05:24:43" (1/1) ... [2022-03-02 05:24:44,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 05:24:44,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 05:24:44,107 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) [2022-03-02 05:24:44,132 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 [2022-03-02 05:24:44,151 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-03-02 05:24:44,151 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-03-02 05:24:44,151 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-03-02 05:24:44,151 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-03-02 05:24:44,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-02 05:24:44,151 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-02 05:24:44,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-02 05:24:44,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-02 05:24:44,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-02 05:24:44,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-02 05:24:44,152 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-02 05:24:44,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-02 05:24:44,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-02 05:24:44,153 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-02 05:24:44,279 INFO L234 CfgBuilder]: Building ICFG [2022-03-02 05:24:44,281 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-02 05:24:44,427 INFO L275 CfgBuilder]: Performing block encoding [2022-03-02 05:24:44,436 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-02 05:24:44,436 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-03-02 05:24:44,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 05:24:44 BoogieIcfgContainer [2022-03-02 05:24:44,438 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-02 05:24:44,439 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-02 05:24:44,439 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-02 05:24:44,442 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-02 05:24:44,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.03 05:24:43" (1/3) ... [2022-03-02 05:24:44,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31a8c117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.03 05:24:44, skipping insertion in model container [2022-03-02 05:24:44,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 05:24:43" (2/3) ... [2022-03-02 05:24:44,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31a8c117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.03 05:24:44, skipping insertion in model container [2022-03-02 05:24:44,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 05:24:44" (3/3) ... [2022-03-02 05:24:44,446 INFO L111 eAbstractionObserver]: Analyzing ICFG fib_unsafe-10.i [2022-03-02 05:24:44,451 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-02 05:24:44,451 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-02 05:24:44,451 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-02 05:24:44,451 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-02 05:24:44,480 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,480 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,480 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,480 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,481 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,481 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,481 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,481 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,482 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,482 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,482 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,482 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,483 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,483 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,483 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,484 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,484 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,484 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,484 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,485 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,485 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,485 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,485 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,485 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,485 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,485 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,486 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,486 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,486 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,487 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,487 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,487 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,487 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,488 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,488 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,488 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,491 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,491 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,491 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,491 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,491 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,493 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,494 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,494 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,494 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,494 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 05:24:44,495 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-02 05:24:44,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-02 05:24:44,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 05:24:44,543 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-02 05:24:44,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-02 05:24:44,567 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-02 05:24:44,575 INFO L339 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=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, 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, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-02 05:24:44,575 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-02 05:24:44,683 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 91 transitions and produced 92 states. [2022-03-02 05:24:44,685 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 05:24:44,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 05:24:44,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1927097680, now seen corresponding path program 1 times [2022-03-02 05:24:44,703 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 05:24:44,704 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223531445] [2022-03-02 05:24:44,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 05:24:44,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 05:24:44,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 05:24:44,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 05:24:44,954 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 05:24:44,954 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223531445] [2022-03-02 05:24:44,955 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223531445] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-02 05:24:44,956 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-02 05:24:44,956 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-02 05:24:44,957 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619260210] [2022-03-02 05:24:44,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-02 05:24:44,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-02 05:24:44,962 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 05:24:44,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-02 05:24:44,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-02 05:24:44,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 05:24:44,987 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 05:24:44,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 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) [2022-03-02 05:24:44,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 05:24:45,034 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 91 transitions and produced 92 states. [2022-03-02 05:24:45,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 05:24:45,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-02 05:24:45,036 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 05:24:45,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 05:24:45,038 INFO L85 PathProgramCache]: Analyzing trace with hash 560415153, now seen corresponding path program 1 times [2022-03-02 05:24:45,039 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 05:24:45,040 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123593091] [2022-03-02 05:24:45,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 05:24:45,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 05:24:45,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 05:24:45,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 05:24:45,147 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 05:24:45,148 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123593091] [2022-03-02 05:24:45,148 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123593091] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-02 05:24:45,148 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-02 05:24:45,148 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-02 05:24:45,148 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209548534] [2022-03-02 05:24:45,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-02 05:24:45,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-02 05:24:45,150 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 05:24:45,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-02 05:24:45,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-02 05:24:45,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 05:24:45,152 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 05:24:45,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2022-03-02 05:24:45,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 05:24:45,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 05:24:45,242 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 114 transitions and produced 115 states. [2022-03-02 05:24:45,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 05:24:45,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 05:24:45,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-02 05:24:45,243 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 05:24:45,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 05:24:45,244 INFO L85 PathProgramCache]: Analyzing trace with hash -951035470, now seen corresponding path program 1 times [2022-03-02 05:24:45,244 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 05:24:45,244 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779558802] [2022-03-02 05:24:45,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 05:24:45,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 05:24:45,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 05:24:45,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 05:24:45,319 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 05:24:45,319 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779558802] [2022-03-02 05:24:45,319 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779558802] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 05:24:45,319 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86938015] [2022-03-02 05:24:45,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 05:24:45,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 05:24:45,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 05:24:45,323 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 05:24:45,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-02 05:24:45,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 05:24:45,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 4 conjunts are in the unsatisfiable core [2022-03-02 05:24:45,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 05:24:45,614 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 05:24:45,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 05:24:45,719 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 05:24:45,719 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86938015] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 05:24:45,719 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 05:24:45,720 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-03-02 05:24:45,720 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150061027] [2022-03-02 05:24:45,720 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 05:24:45,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-02 05:24:45,721 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 05:24:45,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-02 05:24:45,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-03-02 05:24:45,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 05:24:45,722 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 05:24:45,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 10 states have internal predecessors, (76), 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) [2022-03-02 05:24:45,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 05:24:45,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 05:24:45,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 05:24:46,146 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 160 transitions and produced 159 states. [2022-03-02 05:24:46,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 05:24:46,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 05:24:46,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-02 05:24:46,188 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-02 05:24:46,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-03-02 05:24:46,372 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 05:24:46,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 05:24:46,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1666707666, now seen corresponding path program 2 times [2022-03-02 05:24:46,373 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 05:24:46,373 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349026572] [2022-03-02 05:24:46,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 05:24:46,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 05:24:46,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 05:24:46,507 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 05:24:46,507 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 05:24:46,507 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349026572] [2022-03-02 05:24:46,508 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349026572] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 05:24:46,508 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930191349] [2022-03-02 05:24:46,508 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-02 05:24:46,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 05:24:46,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 05:24:46,510 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 05:24:46,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-02 05:24:46,630 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-02 05:24:46,630 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 05:24:46,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-02 05:24:46,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 05:24:46,831 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 05:24:46,831 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 05:24:47,057 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 05:24:47,058 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1930191349] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 05:24:47,058 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 05:24:47,058 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-03-02 05:24:47,058 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490517632] [2022-03-02 05:24:47,058 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 05:24:47,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-02 05:24:47,059 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 05:24:47,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-02 05:24:47,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-03-02 05:24:47,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 05:24:47,060 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 05:24:47,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.777777777777778) internal successors, (104), 18 states have internal predecessors, (104), 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) [2022-03-02 05:24:47,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 05:24:47,061 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 05:24:47,061 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-02 05:24:47,061 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 05:24:47,609 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 252 transitions and produced 244 states. [2022-03-02 05:24:47,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 05:24:47,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 05:24:47,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-02 05:24:47,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-02 05:24:47,634 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-02 05:24:47,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 05:24:47,824 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 05:24:47,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 05:24:47,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1283180782, now seen corresponding path program 3 times [2022-03-02 05:24:47,825 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 05:24:47,825 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776753874] [2022-03-02 05:24:47,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 05:24:47,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 05:24:47,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 05:24:48,018 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 05:24:48,019 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 05:24:48,020 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776753874] [2022-03-02 05:24:48,023 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776753874] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 05:24:48,023 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075071847] [2022-03-02 05:24:48,023 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-02 05:24:48,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 05:24:48,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 05:24:48,028 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 05:24:48,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-02 05:24:48,121 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-03-02 05:24:48,121 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 05:24:48,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 16 conjunts are in the unsatisfiable core [2022-03-02 05:24:48,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 05:24:48,407 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 05:24:48,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 05:24:48,746 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 05:24:48,746 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075071847] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 05:24:48,746 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 05:24:48,746 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-03-02 05:24:48,747 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747756970] [2022-03-02 05:24:48,747 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 05:24:48,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-03-02 05:24:48,748 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 05:24:48,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-03-02 05:24:48,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-03-02 05:24:48,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 05:24:48,749 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 05:24:48,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.705882352941177) internal successors, (160), 34 states have internal predecessors, (160), 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) [2022-03-02 05:24:48,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 05:24:48,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 05:24:48,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-02 05:24:48,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-02 05:24:48,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 05:24:49,666 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 436 transitions and produced 413 states. [2022-03-02 05:24:49,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 05:24:49,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 05:24:49,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-02 05:24:49,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-02 05:24:49,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-02 05:24:49,690 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-03-02 05:24:49,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 05:24:49,891 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 05:24:49,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 05:24:49,891 INFO L85 PathProgramCache]: Analyzing trace with hash 835265426, now seen corresponding path program 4 times [2022-03-02 05:24:49,892 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 05:24:49,892 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067114038] [2022-03-02 05:24:49,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 05:24:49,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 05:24:49,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 05:24:50,326 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 05:24:50,326 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 05:24:50,327 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067114038] [2022-03-02 05:24:50,327 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067114038] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 05:24:50,327 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312099352] [2022-03-02 05:24:50,327 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-02 05:24:50,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 05:24:50,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 05:24:50,328 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 05:24:50,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-02 05:24:50,425 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-02 05:24:50,425 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 05:24:50,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 50 conjunts are in the unsatisfiable core [2022-03-02 05:24:50,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 05:24:53,391 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 572 proven. 178 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 05:24:53,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2022-03-02 05:39:08,503 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-02 05:39:08,503 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-02 05:39:08,503 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-02 05:39:09,530 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-02 05:39:09,536 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-03-02 05:39:09,704 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-03-02 05:39:09,769 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 137 [2022-03-02 05:39:09,771 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-03-02 05:39:09,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-02 05:39:09,772 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 159 with TraceHistMax 15,while TraceCheckSpWp was constructing backward predicates,while executing Executor. [2022-03-02 05:39:09,773 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-02 05:39:09,773 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-02 05:39:09,782 INFO L732 BasicCegarLoop]: Path program histogram: [4, 1, 1] [2022-03-02 05:39:09,784 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-02 05:39:09,784 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-02 05:39:09,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.03 05:39:09 BasicIcfg [2022-03-02 05:39:09,790 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-02 05:39:09,791 INFO L158 Benchmark]: Toolchain (without parser) took 866264.34ms. Allocated memory was 180.4MB in the beginning and 404.8MB in the end (delta: 224.4MB). Free memory was 123.9MB in the beginning and 323.8MB in the end (delta: -199.9MB). Peak memory consumption was 25.8MB. Max. memory is 8.0GB. [2022-03-02 05:39:09,791 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 180.4MB. Free memory is still 141.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-02 05:39:09,791 INFO L158 Benchmark]: CACSL2BoogieTranslator took 463.16ms. Allocated memory was 180.4MB in the beginning and 264.2MB in the end (delta: 83.9MB). Free memory was 123.7MB in the beginning and 226.4MB in the end (delta: -102.7MB). Peak memory consumption was 7.2MB. Max. memory is 8.0GB. [2022-03-02 05:39:09,791 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.67ms. Allocated memory is still 264.2MB. Free memory was 226.4MB in the beginning and 224.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-02 05:39:09,791 INFO L158 Benchmark]: Boogie Preprocessor took 28.43ms. Allocated memory is still 264.2MB. Free memory was 224.8MB in the beginning and 223.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-02 05:39:09,792 INFO L158 Benchmark]: RCFGBuilder took 358.83ms. Allocated memory is still 264.2MB. Free memory was 223.3MB in the beginning and 209.7MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-03-02 05:39:09,792 INFO L158 Benchmark]: TraceAbstraction took 865351.01ms. Allocated memory was 264.2MB in the beginning and 404.8MB in the end (delta: 140.5MB). Free memory was 209.1MB in the beginning and 323.8MB in the end (delta: -114.7MB). Peak memory consumption was 26.9MB. Max. memory is 8.0GB. [2022-03-02 05:39:09,793 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 180.4MB. Free memory is still 141.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 463.16ms. Allocated memory was 180.4MB in the beginning and 264.2MB in the end (delta: 83.9MB). Free memory was 123.7MB in the beginning and 226.4MB in the end (delta: -102.7MB). Peak memory consumption was 7.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 54.67ms. Allocated memory is still 264.2MB. Free memory was 226.4MB in the beginning and 224.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.43ms. Allocated memory is still 264.2MB. Free memory was 224.8MB in the beginning and 223.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 358.83ms. Allocated memory is still 264.2MB. Free memory was 223.3MB in the beginning and 209.7MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 865351.01ms. Allocated memory was 264.2MB in the beginning and 404.8MB in the end (delta: 140.5MB). Free memory was 209.1MB in the beginning and 323.8MB in the end (delta: -114.7MB). Peak memory consumption was 26.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - 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 - TimeoutResultAtElement [Line: 726]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PartialOrderCegarLoop was analyzing trace of length 159 with TraceHistMax 15,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - TimeoutResultAtElement [Line: 722]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 159 with TraceHistMax 15,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - TimeoutResultAtElement [Line: 721]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 159 with TraceHistMax 15,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 112 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 865.2s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 2.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 80, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 578 NumberOfCodeBlocks, 578 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 803 ConstructedInterpolants, 0 QuantifiedInterpolants, 1285 SizeOfPredicates, 22 NumberOfNonLiveVariables, 552 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 0/537 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 could not prove your program: Timeout Completed graceful shutdown