/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-NewStatesSleep-NoLbe-Random7777.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/incr-decr04.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8b99979fc9bd30b823d307a67cb055caa4790482-8b99979 [2021-06-30 16:32:30,168 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-30 16:32:30,169 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-30 16:32:30,187 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-30 16:32:30,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-30 16:32:30,194 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-30 16:32:30,194 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-30 16:32:30,195 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-30 16:32:30,196 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-30 16:32:30,196 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-30 16:32:30,197 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-30 16:32:30,198 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-30 16:32:30,199 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-30 16:32:30,200 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-30 16:32:30,201 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-30 16:32:30,201 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-30 16:32:30,203 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-30 16:32:30,211 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-NewStatesSleep-NoLbe-Random7777.epf [2021-06-30 16:32:30,226 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-30 16:32:30,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-30 16:32:30,227 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-30 16:32:30,227 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-30 16:32:30,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-30 16:32:30,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-30 16:32:30,228 INFO L138 SettingsManager]: * Use SBE=true [2021-06-30 16:32:30,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-30 16:32:30,228 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-30 16:32:30,228 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-30 16:32:30,228 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-30 16:32:30,228 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-30 16:32:30,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-30 16:32:30,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-30 16:32:30,229 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-30 16:32:30,229 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-30 16:32:30,229 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-30 16:32:30,229 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-30 16:32:30,229 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-30 16:32:30,229 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-30 16:32:30,229 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-30 16:32:30,230 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-30 16:32:30,230 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-30 16:32:30,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-30 16:32:30,230 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-30 16:32:30,246 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-30 16:32:30,246 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-30 16:32:30,246 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-30 16:32:30,246 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-30 16:32:30,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-30 16:32:30,246 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-30 16:32:30,247 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-30 16:32:30,247 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-30 16:32:30,247 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-30 16:32:30,247 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-30 16:32:30,247 INFO L138 SettingsManager]: * Random seed used by POR DFS order=7777 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-30 16:32:30,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-30 16:32:30,481 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-30 16:32:30,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-30 16:32:30,484 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-30 16:32:30,488 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-30 16:32:30,489 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/incr-decr04.bpl [2021-06-30 16:32:30,489 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/incr-decr04.bpl' [2021-06-30 16:32:30,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-30 16:32:30,507 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-30 16:32:30,508 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-30 16:32:30,509 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-30 16:32:30,509 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-30 16:32:30,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "incr-decr04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 04:32:30" (1/1) ... [2021-06-30 16:32:30,523 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "incr-decr04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 04:32:30" (1/1) ... [2021-06-30 16:32:30,528 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-30 16:32:30,529 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-30 16:32:30,529 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-30 16:32:30,529 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-30 16:32:30,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "incr-decr04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 04:32:30" (1/1) ... [2021-06-30 16:32:30,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "incr-decr04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 04:32:30" (1/1) ... [2021-06-30 16:32:30,534 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "incr-decr04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 04:32:30" (1/1) ... [2021-06-30 16:32:30,534 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "incr-decr04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 04:32:30" (1/1) ... [2021-06-30 16:32:30,536 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "incr-decr04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 04:32:30" (1/1) ... [2021-06-30 16:32:30,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "incr-decr04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 04:32:30" (1/1) ... [2021-06-30 16:32:30,539 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "incr-decr04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 04:32:30" (1/1) ... [2021-06-30 16:32:30,539 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-30 16:32:30,540 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-30 16:32:30,540 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-30 16:32:30,541 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-30 16:32:30,541 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "incr-decr04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 04:32:30" (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 16:32:30,587 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-30 16:32:30,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-30 16:32:30,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-30 16:32:30,587 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Thread given in one single declaration [2021-06-30 16:32:30,587 INFO L130 BoogieDeclarations]: Found specification of procedure Thread [2021-06-30 16:32:30,587 INFO L138 BoogieDeclarations]: Found implementation of procedure Thread [2021-06-30 16:32:30,588 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 16:32:30,673 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-30 16:32:30,673 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-06-30 16:32:30,674 INFO L202 PluginConnector]: Adding new model incr-decr04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.06 04:32:30 BoogieIcfgContainer [2021-06-30 16:32:30,674 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-30 16:32:30,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-30 16:32:30,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-30 16:32:30,677 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-30 16:32:30,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "incr-decr04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 04:32:30" (1/2) ... [2021-06-30 16:32:30,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61e44aa7 and model type incr-decr04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.06 04:32:30, skipping insertion in model container [2021-06-30 16:32:30,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "incr-decr04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.06 04:32:30" (2/2) ... [2021-06-30 16:32:30,679 INFO L111 eAbstractionObserver]: Analyzing ICFG incr-decr04.bpl [2021-06-30 16:32:30,682 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-30 16:32:30,682 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-30 16:32:30,682 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-30 16:32:30,683 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-30 16:32:30,733 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-30 16:32:30,748 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 16:32:30,815 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-30 16:32:30,815 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-30 16:32:30,815 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-30 16:32:30,815 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-30 16:32:30,815 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-30 16:32:30,815 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-30 16:32:30,815 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-30 16:32:30,815 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-30 16:32:31,031 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 16:32:31,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 16:32:31,035 INFO L82 PathProgramCache]: Analyzing trace with hash 638343174, now seen corresponding path program 1 times [2021-06-30 16:32:31,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 16:32:31,044 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720745886] [2021-06-30 16:32:31,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 16:32:31,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 16:32:31,206 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 16:32:31,207 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 16:32:31,207 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720745886] [2021-06-30 16:32:31,207 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720745886] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 16:32:31,207 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386318955] [2021-06-30 16:32:31,207 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 16:32:31,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 16:32:31,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-30 16:32:31,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 16:32:31,324 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 16:32:31,325 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [386318955] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 16:32:31,325 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 16:32:31,325 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-06-30 16:32:31,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328268417] [2021-06-30 16:32:31,329 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-30 16:32:31,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 16:32:31,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-30 16:32:31,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-30 16:32:31,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-30 16:32:31,339 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-30 16:32:31,340 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 16:32:31,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-30 16:32:31,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-30 16:32:31,589 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-06-30 16:32:31,589 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 16:32:31,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 16:32:31,589 INFO L82 PathProgramCache]: Analyzing trace with hash -1065386822, now seen corresponding path program 1 times [2021-06-30 16:32:31,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 16:32:31,590 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478612702] [2021-06-30 16:32:31,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 16:32:31,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 16:32:31,681 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-30 16:32:31,681 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 16:32:31,681 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478612702] [2021-06-30 16:32:31,682 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478612702] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 16:32:31,682 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335121396] [2021-06-30 16:32:31,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 16:32:31,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 16:32:31,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 23 conjunts are in the unsatisfiable core [2021-06-30 16:32:31,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 16:32:31,835 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-30 16:32:31,835 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335121396] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 16:32:31,835 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 16:32:31,836 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-06-30 16:32:31,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003585853] [2021-06-30 16:32:31,836 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-30 16:32:31,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 16:32:31,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-30 16:32:31,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-30 16:32:31,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-30 16:32:31,837 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-30 16:32:31,837 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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 16:32:31,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-30 16:32:31,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-30 16:32:32,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-30 16:32:32,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-30 16:32:32,256 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 16:32:32,263 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-30 16:32:32,265 INFO L202 PluginConnector]: Adding new model incr-decr04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.06 04:32:32 BasicIcfg [2021-06-30 16:32:32,265 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-30 16:32:32,266 INFO L168 Benchmark]: Toolchain (without parser) took 1758.49 ms. Allocated memory is still 208.7 MB. Free memory was 188.8 MB in the beginning and 170.9 MB in the end (delta: 17.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. [2021-06-30 16:32:32,266 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 208.7 MB. Free memory is still 189.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-30 16:32:32,266 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.77 ms. Allocated memory is still 208.7 MB. Free memory was 188.7 MB in the beginning and 187.2 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-06-30 16:32:32,266 INFO L168 Benchmark]: Boogie Preprocessor took 10.81 ms. Allocated memory is still 208.7 MB. Free memory was 187.2 MB in the beginning and 186.4 MB in the end (delta: 870.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-30 16:32:32,266 INFO L168 Benchmark]: RCFGBuilder took 133.83 ms. Allocated memory is still 208.7 MB. Free memory was 186.3 MB in the beginning and 177.6 MB in the end (delta: 8.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-06-30 16:32:32,266 INFO L168 Benchmark]: TraceAbstraction took 1589.91 ms. Allocated memory is still 208.7 MB. Free memory was 177.1 MB in the beginning and 170.9 MB in the end (delta: 6.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. [2021-06-30 16:32:32,267 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 0.12 ms. Allocated memory is still 208.7 MB. Free memory is still 189.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 19.77 ms. Allocated memory is still 208.7 MB. Free memory was 188.7 MB in the beginning and 187.2 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Preprocessor took 10.81 ms. Allocated memory is still 208.7 MB. Free memory was 187.2 MB in the beginning and 186.4 MB in the end (delta: 870.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 133.83 ms. Allocated memory is still 208.7 MB. Free memory was 186.3 MB in the beginning and 177.6 MB in the end (delta: 8.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1589.91 ms. Allocated memory is still 208.7 MB. Free memory was 177.1 MB in the beginning and 170.9 MB in the end (delta: 6.3 MB). Peak memory consumption was 7.3 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: 4347, positive: 3774, positive conditional: 3774, positive unconditional: 0, negative: 573, negative conditional: 573, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 3774, positive: 3774, positive conditional: 3774, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 3774, positive: 3774, positive conditional: 0, positive unconditional: 3774, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 130, positive: 130, positive conditional: 0, positive unconditional: 130, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 130, positive: 92, positive conditional: 0, positive unconditional: 92, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 38, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 38, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 161, positive: 161, positive conditional: 0, positive unconditional: 161, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3774, positive: 3644, positive conditional: 0, positive unconditional: 3644, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 130, unknown conditional: 0, unknown unconditional: 130] , Statistics on independence cache: Total cache size (in pairs): 130, Positive cache size: 130, Positive conditional cache size: 0, Positive unconditional cache size: 130, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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: 38, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 161, positive: 161, positive conditional: 0, positive unconditional: 161, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 130, Positive cache size: 130, Positive conditional cache size: 0, Positive unconditional cache size: 130, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, 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: 38, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 161, positive: 161, positive conditional: 0, positive unconditional: 161, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 130, Positive cache size: 130, Positive conditional cache size: 0, Positive unconditional cache size: 130, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 ], Maximal queried relation: 0, Independence queries for same thread: 573 - 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, 32 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1482.6ms, OverallIterations: 2, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.4ms, PartialOrderReductionTime: 447.6ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 11, 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: 12.8ms SsaConstructionTime, 42.8ms SatisfiabilityAnalysisTime, 388.3ms InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 588 SizeOfPredicates, 0 NumberOfNonLiveVariables, 130 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 4 InterpolantComputations, 0 PerfectInterpolantSequences, 18/32 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...