/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-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/regression/multiple_fork_same_id.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-17 12:45:41,318 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-17 12:45:41,320 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-17 12:45:41,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-17 12:45:41,346 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-17 12:45:41,347 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-17 12:45:41,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-17 12:45:41,348 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-17 12:45:41,348 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-17 12:45:41,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-17 12:45:41,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-17 12:45:41,351 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-17 12:45:41,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-17 12:45:41,352 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-17 12:45:41,353 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-17 12:45:41,354 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-17 12:45:41,355 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-17 12:45:41,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-17 12:45:41,358 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-17 12:45:41,358 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-17 12:45:41,359 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-17 12:45:41,359 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-17 12:45:41,359 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-17 12:45:41,360 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-17 12:45:41,360 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... 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[2021-06-17 12:45:41,362 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-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf [2021-06-17 12:45:41,378 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-17 12:45:41,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-17 12:45:41,378 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-17 12:45:41,378 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-17 12:45:41,379 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-17 12:45:41,379 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-17 12:45:41,379 INFO L138 SettingsManager]: * Use SBE=true [2021-06-17 12:45:41,379 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-17 12:45:41,379 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-17 12:45:41,379 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-17 12:45:41,380 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-17 12:45:41,380 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-17 12:45:41,380 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-17 12:45:41,380 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-17 12:45:41,380 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-17 12:45:41,380 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-17 12:45:41,380 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-17 12:45:41,380 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-17 12:45:41,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-17 12:45:41,381 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-17 12:45:41,381 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-17 12:45:41,381 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-17 12:45:41,381 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-17 12:45:41,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-17 12:45:41,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-17 12:45:41,381 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-17 12:45:41,381 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-17 12:45:41,381 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-17 12:45:41,381 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-17 12:45:41,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-17 12:45:41,382 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-17 12:45:41,382 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-17 12:45:41,382 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-17 12:45:41,382 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-06-17 12:45:41,382 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-17 12:45:41,382 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-17 12:45:41,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-17 12:45:41,609 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-17 12:45:41,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-17 12:45:41,612 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-17 12:45:41,612 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-17 12:45:41,613 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/multiple_fork_same_id.bpl [2021-06-17 12:45:41,613 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/multiple_fork_same_id.bpl' [2021-06-17 12:45:41,642 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-17 12:45:41,643 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-17 12:45:41,644 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-17 12:45:41,644 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-17 12:45:41,644 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-17 12:45:41,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 12:45:41" (1/1) ... [2021-06-17 12:45:41,659 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 12:45:41" (1/1) ... [2021-06-17 12:45:41,665 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-17 12:45:41,666 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-17 12:45:41,666 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-17 12:45:41,667 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-17 12:45:41,672 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 12:45:41" (1/1) ... [2021-06-17 12:45:41,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 12:45:41" (1/1) ... [2021-06-17 12:45:41,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 12:45:41" (1/1) ... [2021-06-17 12:45:41,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 12:45:41" (1/1) ... [2021-06-17 12:45:41,674 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 12:45:41" (1/1) ... [2021-06-17 12:45:41,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 12:45:41" (1/1) ... [2021-06-17 12:45:41,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 12:45:41" (1/1) ... [2021-06-17 12:45:41,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-17 12:45:41,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-17 12:45:41,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-17 12:45:41,676 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-17 12:45:41,677 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 12:45:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-17 12:45:41,749 INFO L124 BoogieDeclarations]: Specification and implementation of procedure increment given in one single declaration [2021-06-17 12:45:41,749 INFO L130 BoogieDeclarations]: Found specification of procedure increment [2021-06-17 12:45:41,749 INFO L138 BoogieDeclarations]: Found implementation of procedure increment [2021-06-17 12:45:41,749 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-17 12:45:41,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-17 12:45:41,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-17 12:45:41,750 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-17 12:45:41,855 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-17 12:45:41,855 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-17 12:45:41,857 INFO L202 PluginConnector]: Adding new model multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 12:45:41 BoogieIcfgContainer [2021-06-17 12:45:41,857 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-17 12:45:41,859 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-17 12:45:41,859 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-17 12:45:41,861 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-17 12:45:41,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 12:45:41" (1/2) ... [2021-06-17 12:45:41,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@392d8589 and model type multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.06 12:45:41, skipping insertion in model container [2021-06-17 12:45:41,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 12:45:41" (2/2) ... [2021-06-17 12:45:41,866 INFO L111 eAbstractionObserver]: Analyzing ICFG multiple_fork_same_id.bpl [2021-06-17 12:45:41,870 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-17 12:45:41,870 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-17 12:45:41,871 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-17 12:45:41,872 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-17 12:45:41,897 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork2_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-17 12:45:41,898 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork2_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-17 12:45:41,900 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork2_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-17 12:45:41,900 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork2_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-17 12:45:41,900 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork1_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-17 12:45:41,900 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-17 12:45:41,901 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork1_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-17 12:45:41,901 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-17 12:45:41,901 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-17 12:45:41,901 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-17 12:45:41,902 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-17 12:45:41,902 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-17 12:45:41,905 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-17 12:45:41,909 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-17 12:45:41,914 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork2_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-17 12:45:41,937 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-17 12:45:41,954 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-17 12:45:42,026 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-17 12:45:42,026 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-17 12:45:42,026 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-17 12:45:42,026 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-17 12:45:42,027 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-17 12:45:42,027 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-17 12:45:42,027 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-17 12:45:42,027 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-17 12:45:42,180 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 12:45:42,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 12:45:42,184 INFO L82 PathProgramCache]: Analyzing trace with hash -801302096, now seen corresponding path program 1 times [2021-06-17 12:45:42,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 12:45:42,190 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123945764] [2021-06-17 12:45:42,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 12:45:42,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-17 12:45:42,295 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-17 12:45:42,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-17 12:45:42,308 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-17 12:45:42,318 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-17 12:45:42,319 INFO L573 BasicCegarLoop]: Counterexample might be feasible [2021-06-17 12:45:42,319 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-17 12:45:42,326 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-17 12:45:42,332 INFO L202 PluginConnector]: Adding new model multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.06 12:45:42 BasicIcfg [2021-06-17 12:45:42,332 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-17 12:45:42,334 INFO L168 Benchmark]: Toolchain (without parser) took 690.06 ms. Allocated memory is still 207.6 MB. Free memory was 187.8 MB in the beginning and 155.2 MB in the end (delta: 32.6 MB). Peak memory consumption was 32.5 MB. Max. memory is 8.0 GB. [2021-06-17 12:45:42,334 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 207.6 MB. Free memory is still 188.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-17 12:45:42,334 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.59 ms. Allocated memory is still 207.6 MB. Free memory was 187.6 MB in the beginning and 186.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-17 12:45:42,335 INFO L168 Benchmark]: Boogie Preprocessor took 8.90 ms. Allocated memory is still 207.6 MB. Free memory was 186.1 MB in the beginning and 185.3 MB in the end (delta: 806.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-17 12:45:42,335 INFO L168 Benchmark]: RCFGBuilder took 181.79 ms. Allocated memory is still 207.6 MB. Free memory was 185.3 MB in the beginning and 176.7 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2021-06-17 12:45:42,336 INFO L168 Benchmark]: TraceAbstraction took 472.96 ms. Allocated memory is still 207.6 MB. Free memory was 176.3 MB in the beginning and 155.2 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-06-17 12:45:42,337 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 207.6 MB. Free memory is still 188.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 21.59 ms. Allocated memory is still 207.6 MB. Free memory was 187.6 MB in the beginning and 186.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 8.90 ms. Allocated memory is still 207.6 MB. Free memory was 186.1 MB in the beginning and 185.3 MB in the end (delta: 806.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 181.79 ms. Allocated memory is still 207.6 MB. Free memory was 185.3 MB in the beginning and 176.7 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 472.96 ms. Allocated memory is still 207.6 MB. Free memory was 176.3 MB in the beginning and 155.2 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 127, positive: 115, positive conditional: 11, positive unconditional: 104, negative: 12, negative conditional: 6, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 126, positive: 115, positive conditional: 11, positive unconditional: 104, negative: 11, negative conditional: 5, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 126, positive: 115, positive conditional: 0, positive unconditional: 115, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 98, positive: 90, positive conditional: 0, positive unconditional: 90, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 98, positive: 90, positive conditional: 0, positive unconditional: 90, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 8, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 78, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 78, negative conditional: 0, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 126, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 98, unknown conditional: 0, unknown unconditional: 98] , Statistics on independence cache: Total cache size (in pairs): 98, Positive cache size: 90, Positive conditional cache size: 0, Positive unconditional cache size: 90, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8 ], Maximal queried relation: 0, Independence queries for same thread: 1 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 120, Number of persistent set computation: 35, Number of trivial persistent sets: 35, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 127, positive: 115, positive conditional: 11, positive unconditional: 104, negative: 12, negative conditional: 6, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 126, positive: 115, positive conditional: 11, positive unconditional: 104, negative: 11, negative conditional: 5, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 126, positive: 115, positive conditional: 0, positive unconditional: 115, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 98, positive: 90, positive conditional: 0, positive unconditional: 90, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 98, positive: 90, positive conditional: 0, positive unconditional: 90, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 8, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 78, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 78, negative conditional: 0, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 126, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 98, unknown conditional: 0, unknown unconditional: 98] , Statistics on independence cache: Total cache size (in pairs): 98, Positive cache size: 90, Positive conditional cache size: 0, Positive unconditional cache size: 90, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8 ], Maximal queried relation: 0, Independence queries for same thread: 1 - CounterExampleResult [Line: 28]: assertion can be violated assertion can be violated We found a FailurePath: [L19] FORK 0 fork 42 increment(7); VAL [n=7] [L34] 1 res := n + 1; VAL [n=7, res=8] [L20] FORK 0 fork 42 increment(23); VAL [n=7, res=8] [L34] 2 res := n + 1; VAL [n=7, res=24] [L21] FORK 0 fork 42 increment(39); VAL [n=39, res=24] [L34] 3 res := n + 1; VAL [n=39, res=40] [L24] JOIN 2 join 42 assign x; VAL [n=39, res=40, x=24] [L28] 0 assert x == 8 || x == 40; VAL [n=39, res=40, x=24] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 23 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 349.1ms, OverallIterations: 1, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.9ms, PartialOrderReductionTime: 143.3ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 7.2ms SsaConstructionTime, 20.4ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...