/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-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/add-sub04.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8b99979fc9bd30b823d307a67cb055caa4790482-8b99979 [2021-06-30 18:20:13,785 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-30 18:20:13,787 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-30 18:20:13,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-30 18:20:13,821 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-30 18:20:13,822 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-30 18:20:13,823 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-30 18:20:13,824 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-30 18:20:13,825 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-30 18:20:13,826 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-30 18:20:13,827 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-30 18:20:13,829 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-30 18:20:13,830 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-30 18:20:13,831 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-30 18:20:13,832 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-30 18:20:13,846 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-30 18:20:13,848 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-30 18:20:13,867 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-Lockstep.epf [2021-06-30 18:20:13,900 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-30 18:20:13,900 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-30 18:20:13,900 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-30 18:20:13,901 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-30 18:20:13,903 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-30 18:20:13,903 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-30 18:20:13,903 INFO L138 SettingsManager]: * Use SBE=true [2021-06-30 18:20:13,903 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-30 18:20:13,904 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-30 18:20:13,904 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-30 18:20:13,904 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-30 18:20:13,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-30 18:20:13,905 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-30 18:20:13,905 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-30 18:20:13,905 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-30 18:20:13,905 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-30 18:20:13,905 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-30 18:20:13,906 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-30 18:20:13,906 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-30 18:20:13,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-30 18:20:13,906 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-30 18:20:13,906 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-30 18:20:13,906 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-30 18:20:13,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-30 18:20:13,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-30 18:20:13,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-30 18:20:13,907 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-30 18:20:13,907 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-30 18:20:13,907 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-06-30 18:20:13,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-30 18:20:13,908 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-30 18:20:13,908 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-30 18:20:13,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-30 18:20:13,908 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-06-30 18:20:13,908 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-30 18:20:14,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-30 18:20:14,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-30 18:20:14,259 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-30 18:20:14,260 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-30 18:20:14,264 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-30 18:20:14,265 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/add-sub04.bpl [2021-06-30 18:20:14,265 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/add-sub04.bpl' [2021-06-30 18:20:14,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-30 18:20:14,288 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-30 18:20:14,289 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-30 18:20:14,289 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-30 18:20:14,289 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-30 18:20:14,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "add-sub04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 06:20:14" (1/1) ... [2021-06-30 18:20:14,302 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "add-sub04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 06:20:14" (1/1) ... [2021-06-30 18:20:14,308 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-30 18:20:14,309 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-30 18:20:14,309 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-30 18:20:14,309 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-30 18:20:14,316 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "add-sub04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 06:20:14" (1/1) ... [2021-06-30 18:20:14,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "add-sub04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 06:20:14" (1/1) ... [2021-06-30 18:20:14,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "add-sub04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 06:20:14" (1/1) ... [2021-06-30 18:20:14,317 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "add-sub04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 06:20:14" (1/1) ... [2021-06-30 18:20:14,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "add-sub04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 06:20:14" (1/1) ... [2021-06-30 18:20:14,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "add-sub04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 06:20:14" (1/1) ... [2021-06-30 18:20:14,324 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "add-sub04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 06:20:14" (1/1) ... [2021-06-30 18:20:14,326 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-30 18:20:14,327 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-30 18:20:14,328 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-30 18:20:14,328 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-30 18:20:14,329 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "add-sub04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 06:20:14" (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 [2021-06-30 18:20:14,413 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-30 18:20:14,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-30 18:20:14,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-30 18:20:14,413 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Thread given in one single declaration [2021-06-30 18:20:14,413 INFO L130 BoogieDeclarations]: Found specification of procedure Thread [2021-06-30 18:20:14,414 INFO L138 BoogieDeclarations]: Found implementation of procedure Thread [2021-06-30 18:20:14,414 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-30 18:20:14,539 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-30 18:20:14,540 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-06-30 18:20:14,542 INFO L202 PluginConnector]: Adding new model add-sub04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.06 06:20:14 BoogieIcfgContainer [2021-06-30 18:20:14,542 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-30 18:20:14,544 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-30 18:20:14,545 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-30 18:20:14,547 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-30 18:20:14,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "add-sub04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 06:20:14" (1/2) ... [2021-06-30 18:20:14,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61a670f4 and model type add-sub04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.06 06:20:14, skipping insertion in model container [2021-06-30 18:20:14,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "add-sub04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.06 06:20:14" (2/2) ... [2021-06-30 18:20:14,550 INFO L111 eAbstractionObserver]: Analyzing ICFG add-sub04.bpl [2021-06-30 18:20:14,559 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-30 18:20:14,559 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-30 18:20:14,560 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-30 18:20:14,562 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-30 18:20:14,614 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 18:20:14,614 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 18:20:14,616 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 18:20:14,617 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 18:20:14,617 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 18:20:14,617 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 18:20:14,618 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 18:20:14,618 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 18:20:14,618 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 18:20:14,618 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 18:20:14,619 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 18:20:14,619 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 18:20:14,619 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 18:20:14,619 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 18:20:14,619 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 18:20:14,620 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 18:20:14,620 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 18:20:14,620 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 18:20:14,621 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 18:20:14,621 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 18:20:14,621 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 18:20:14,622 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 18:20:14,622 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 18:20:14,622 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 18:20:14,628 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 18:20:14,635 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 18:20:14,640 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 18:20:14,645 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 18:20:14,661 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-30 18:20:14,679 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 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 [2021-06-30 18:20:14,737 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-30 18:20:14,737 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-30 18:20:14,737 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-30 18:20:14,737 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-30 18:20:14,737 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-30 18:20:14,737 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-30 18:20:14,737 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-30 18:20:14,738 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-30 18:20:15,177 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 18:20:15,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 18:20:15,188 INFO L82 PathProgramCache]: Analyzing trace with hash 717878714, now seen corresponding path program 1 times [2021-06-30 18:20:15,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 18:20:15,196 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475368034] [2021-06-30 18:20:15,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 18:20:15,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 18:20:15,558 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-06-30 18:20:15,558 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 18:20:15,558 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475368034] [2021-06-30 18:20:15,559 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475368034] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 18:20:15,559 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046175636] [2021-06-30 18:20:15,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 18:20:15,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 18:20:15,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 39 conjunts are in the unsatisfiable core [2021-06-30 18:20:15,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 18:20:15,844 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-06-30 18:20:15,844 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046175636] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 18:20:15,845 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 18:20:15,845 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2021-06-30 18:20:15,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865303693] [2021-06-30 18:20:15,851 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-30 18:20:15,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 18:20:15,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-30 18:20:15,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-06-30 18:20:15,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-30 18:20:15,865 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-30 18:20:15,867 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 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) [2021-06-30 18:20:15,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-30 18:20:16,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-30 18:20:16,490 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-06-30 18:20:16,495 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-30 18:20:16,496 INFO L202 PluginConnector]: Adding new model add-sub04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.06 06:20:16 BasicIcfg [2021-06-30 18:20:16,496 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-30 18:20:16,498 INFO L168 Benchmark]: Toolchain (without parser) took 2209.22 ms. Allocated memory is still 196.1 MB. Free memory was 176.8 MB in the beginning and 88.6 MB in the end (delta: 88.2 MB). Peak memory consumption was 89.2 MB. Max. memory is 8.0 GB. [2021-06-30 18:20:16,498 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 196.1 MB. Free memory is still 177.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-30 18:20:16,502 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.23 ms. Allocated memory is still 196.1 MB. Free memory was 176.8 MB in the beginning and 175.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-30 18:20:16,503 INFO L168 Benchmark]: Boogie Preprocessor took 17.09 ms. Allocated memory is still 196.1 MB. Free memory was 175.4 MB in the beginning and 174.4 MB in the end (delta: 982.9 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-06-30 18:20:16,503 INFO L168 Benchmark]: RCFGBuilder took 215.33 ms. Allocated memory is still 196.1 MB. Free memory was 174.4 MB in the beginning and 164.8 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-06-30 18:20:16,503 INFO L168 Benchmark]: TraceAbstraction took 1951.85 ms. Allocated memory is still 196.1 MB. Free memory was 164.4 MB in the beginning and 88.6 MB in the end (delta: 75.8 MB). Peak memory consumption was 76.6 MB. Max. memory is 8.0 GB. [2021-06-30 18:20:16,503 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 0.21 ms. Allocated memory is still 196.1 MB. Free memory is still 177.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 19.23 ms. Allocated memory is still 196.1 MB. Free memory was 176.8 MB in the beginning and 175.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 17.09 ms. Allocated memory is still 196.1 MB. Free memory was 175.4 MB in the beginning and 174.4 MB in the end (delta: 982.9 kB). There was no memory consumed. Max. memory is 8.0 GB. * RCFGBuilder took 215.33 ms. Allocated memory is still 196.1 MB. Free memory was 174.4 MB in the beginning and 164.8 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1951.85 ms. Allocated memory is still 196.1 MB. Free memory was 164.4 MB in the beginning and 88.6 MB in the end (delta: 75.8 MB). Peak memory consumption was 76.6 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: 2842, positive: 2594, positive conditional: 1730, positive unconditional: 864, negative: 248, negative conditional: 245, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 2597, positive: 2594, positive conditional: 1730, positive unconditional: 864, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 2597, positive: 2594, positive conditional: 0, positive unconditional: 2594, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 567, positive: 564, positive conditional: 0, positive unconditional: 564, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 567, positive: 513, positive conditional: 0, positive unconditional: 513, negative: 54, negative conditional: 0, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 54, positive: 51, positive conditional: 0, positive unconditional: 51, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 54, positive: 51, positive conditional: 0, positive unconditional: 51, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 297, positive: 279, positive conditional: 0, positive unconditional: 279, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2597, positive: 2030, positive conditional: 0, positive unconditional: 2030, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 567, unknown conditional: 0, unknown unconditional: 567] , Statistics on independence cache: Total cache size (in pairs): 567, Positive cache size: 564, Positive conditional cache size: 0, Positive unconditional cache size: 564, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, 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: SemanticIndependenceRelation.Independence Queries: [ total: 54, positive: 51, positive conditional: 0, positive unconditional: 51, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 297, positive: 279, positive conditional: 0, positive unconditional: 279, negative: 18, negative conditional: 0, negative unconditional: 18, 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): 567, Positive cache size: 564, Positive conditional cache size: 0, Positive unconditional cache size: 564, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Eliminated conditions: 0 ], Maximal queried relation: 0, Independence queries for same thread: 245 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 457, Number of persistent set computation: 416, Number of trivial persistent sets: 156, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2842, positive: 2594, positive conditional: 1730, positive unconditional: 864, negative: 248, negative conditional: 245, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 2597, positive: 2594, positive conditional: 1730, positive unconditional: 864, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 2597, positive: 2594, positive conditional: 0, positive unconditional: 2594, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 567, positive: 564, positive conditional: 0, positive unconditional: 564, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 567, positive: 513, positive conditional: 0, positive unconditional: 513, negative: 54, negative conditional: 0, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 54, positive: 51, positive conditional: 0, positive unconditional: 51, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 54, positive: 51, positive conditional: 0, positive unconditional: 51, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 297, positive: 279, positive conditional: 0, positive unconditional: 279, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2597, positive: 2030, positive conditional: 0, positive unconditional: 2030, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 567, unknown conditional: 0, unknown unconditional: 567] , Statistics on independence cache: Total cache size (in pairs): 567, Positive cache size: 564, Positive conditional cache size: 0, Positive unconditional cache size: 564, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, 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: SemanticIndependenceRelation.Independence Queries: [ total: 54, positive: 51, positive conditional: 0, positive unconditional: 51, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 297, positive: 279, positive conditional: 0, positive unconditional: 279, negative: 18, negative conditional: 0, negative unconditional: 18, 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): 567, Positive cache size: 564, Positive conditional cache size: 0, Positive unconditional cache size: 564, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Eliminated conditions: 0 ], Maximal queried relation: 0, Independence queries for same thread: 245 - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 6 procedures, 37 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1800.6ms, OverallIterations: 1, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.9ms, PartialOrderReductionTime: 823.5ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 10, 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: 13.5ms SsaConstructionTime, 54.2ms SatisfiabilityAnalysisTime, 492.8ms InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 608 SizeOfPredicates, 0 NumberOfNonLiveVariables, 94 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 2 InterpolantComputations, 0 PerfectInterpolantSequences, 26/66 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...