/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/incr-decr11.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8b99979fc9bd30b823d307a67cb055caa4790482-8b99979 [2021-06-30 18:32:38,165 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-30 18:32:38,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-30 18:32:38,207 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-30 18:32:38,230 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-30 18:32:38,232 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-30 18:32:38,233 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-30 18:32:38,234 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-30 18:32:38,235 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-30 18:32:38,236 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-30 18:32:38,241 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-30 18:32:38,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-30 18:32:38,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-30 18:32:38,248 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-30 18:32:38,249 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-30 18:32:38,251 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-30 18:32:38,255 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-30 18:32:38,269 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 18:32:38,302 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-30 18:32:38,302 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-30 18:32:38,303 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-30 18:32:38,303 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-30 18:32:38,305 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-30 18:32:38,305 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-30 18:32:38,305 INFO L138 SettingsManager]: * Use SBE=true [2021-06-30 18:32:38,306 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-30 18:32:38,306 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-30 18:32:38,306 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-30 18:32:38,306 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-30 18:32:38,307 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-30 18:32:38,307 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-30 18:32:38,307 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-30 18:32:38,307 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-30 18:32:38,307 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-30 18:32:38,307 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-30 18:32:38,307 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-30 18:32:38,307 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-30 18:32:38,308 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-30 18:32:38,308 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-30 18:32:38,308 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-30 18:32:38,308 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-30 18:32:38,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-30 18:32:38,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-30 18:32:38,308 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-30 18:32:38,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-30 18:32:38,309 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-30 18:32:38,309 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-06-30 18:32:38,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-30 18:32:38,309 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-30 18:32:38,309 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-30 18:32:38,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-30 18:32:38,310 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-06-30 18:32:38,310 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-30 18:32:38,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-30 18:32:38,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-30 18:32:38,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-30 18:32:38,645 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-30 18:32:38,647 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-30 18:32:38,647 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/incr-decr11.bpl [2021-06-30 18:32:38,648 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/incr-decr11.bpl' [2021-06-30 18:32:38,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-30 18:32:38,669 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-30 18:32:38,670 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-30 18:32:38,670 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-30 18:32:38,670 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-30 18:32:38,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "incr-decr11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 06:32:38" (1/1) ... [2021-06-30 18:32:38,689 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "incr-decr11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 06:32:38" (1/1) ... [2021-06-30 18:32:38,695 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-30 18:32:38,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-30 18:32:38,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-30 18:32:38,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-30 18:32:38,704 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "incr-decr11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 06:32:38" (1/1) ... [2021-06-30 18:32:38,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "incr-decr11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 06:32:38" (1/1) ... [2021-06-30 18:32:38,712 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "incr-decr11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 06:32:38" (1/1) ... [2021-06-30 18:32:38,713 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "incr-decr11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 06:32:38" (1/1) ... [2021-06-30 18:32:38,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "incr-decr11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 06:32:38" (1/1) ... [2021-06-30 18:32:38,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "incr-decr11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 06:32:38" (1/1) ... [2021-06-30 18:32:38,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "incr-decr11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 06:32:38" (1/1) ... [2021-06-30 18:32:38,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-30 18:32:38,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-30 18:32:38,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-30 18:32:38,720 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-30 18:32:38,721 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "incr-decr11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 06:32:38" (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 18:32:38,774 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-30 18:32:38,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-30 18:32:38,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-30 18:32:38,775 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Thread given in one single declaration [2021-06-30 18:32:38,775 INFO L130 BoogieDeclarations]: Found specification of procedure Thread [2021-06-30 18:32:38,775 INFO L138 BoogieDeclarations]: Found implementation of procedure Thread [2021-06-30 18:32:38,775 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 18:32:38,933 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-30 18:32:38,933 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-06-30 18:32:38,935 INFO L202 PluginConnector]: Adding new model incr-decr11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.06 06:32:38 BoogieIcfgContainer [2021-06-30 18:32:38,935 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-30 18:32:38,937 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-30 18:32:38,938 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-30 18:32:38,940 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-30 18:32:38,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "incr-decr11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 06:32:38" (1/2) ... [2021-06-30 18:32:38,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7464a0a4 and model type incr-decr11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.06 06:32:38, skipping insertion in model container [2021-06-30 18:32:38,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "incr-decr11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.06 06:32:38" (2/2) ... [2021-06-30 18:32:38,943 INFO L111 eAbstractionObserver]: Analyzing ICFG incr-decr11.bpl [2021-06-30 18:32:38,952 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-30 18:32:38,952 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-30 18:32:38,953 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-30 18:32:38,954 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-30 18:32:39,177 INFO L149 ThreadInstanceAdder]: Constructed 11 joinOtherThreadTransitions. [2021-06-30 18:32:39,207 INFO L255 AbstractCegarLoop]: Starting to check reachability of 12 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 18:32:39,274 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-30 18:32:39,274 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-30 18:32:39,275 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-30 18:32:39,275 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-30 18:32:39,275 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-30 18:32:39,275 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-30 18:32:39,275 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-30 18:32:39,275 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-30 18:32:40,554 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-30 18:32:40,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 18:32:40,560 INFO L82 PathProgramCache]: Analyzing trace with hash -1497656996, now seen corresponding path program 1 times [2021-06-30 18:32:40,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 18:32:40,568 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172346887] [2021-06-30 18:32:40,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 18:32:40,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 18:32:41,514 INFO L134 CoverageAnalysis]: Checked inductivity of 815 backedges. 0 proven. 633 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2021-06-30 18:32:41,515 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 18:32:41,515 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172346887] [2021-06-30 18:32:41,516 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172346887] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 18:32:41,516 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1491866882] [2021-06-30 18:32:41,516 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 18:32:41,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 18:32:41,693 WARN L261 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 343 conjunts are in the unsatisfiable core [2021-06-30 18:32:41,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 18:32:42,240 INFO L134 CoverageAnalysis]: Checked inductivity of 815 backedges. 0 proven. 633 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2021-06-30 18:32:42,241 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1491866882] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 18:32:42,241 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 18:32:42,241 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2021-06-30 18:32:42,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386890405] [2021-06-30 18:32:42,247 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-30 18:32:42,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 18:32:42,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-30 18:32:42,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-06-30 18:32:42,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-30 18:32:42,260 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-30 18:32:42,262 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 14.444444444444445) internal successors, (130), 9 states have internal predecessors, (130), 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 18:32:42,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.