/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-NewStatesSleepPersistent-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dec-subseq.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-10 09:19:55,177 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-10 09:19:55,179 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-10 09:19:55,205 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-10 09:19:55,223 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-10 09:19:55,224 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-10 09:19:55,225 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-10 09:19:55,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-10 09:19:55,228 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-10 09:19:55,229 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-10 09:19:55,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-10 09:19:55,234 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-10 09:19:55,235 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-10 09:19:55,236 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-10 09:19:55,254 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-10 09:19:55,256 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-10 09:19:55,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-10 09:19:55,271 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-NewStatesSleepPersistent-NoLbe-Lockstep.epf [2021-07-10 09:19:55,297 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-10 09:19:55,298 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-10 09:19:55,298 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-10 09:19:55,298 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-10 09:19:55,299 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-10 09:19:55,299 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-10 09:19:55,299 INFO L138 SettingsManager]: * Use SBE=true [2021-07-10 09:19:55,299 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-10 09:19:55,299 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-10 09:19:55,299 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-10 09:19:55,299 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-10 09:19:55,300 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-10 09:19:55,300 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-10 09:19:55,300 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-10 09:19:55,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-10 09:19:55,300 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-10 09:19:55,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-10 09:19:55,300 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-10 09:19:55,300 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-10 09:19:55,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-10 09:19:55,301 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-10 09:19:55,301 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-10 09:19:55,301 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-10 09:19:55,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-10 09:19:55,301 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-10 09:19:55,301 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-10 09:19:55,301 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-10 09:19:55,302 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-10 09:19:55,302 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-07-10 09:19:55,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-10 09:19:55,302 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-10 09:19:55,302 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-10 09:19:55,302 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-10 09:19:55,302 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES [2021-07-10 09:19:55,302 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-10 09:19:55,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-10 09:19:55,599 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-10 09:19:55,601 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-10 09:19:55,602 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-10 09:19:55,603 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-10 09:19:55,603 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dec-subseq.wvr.bpl [2021-07-10 09:19:55,603 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dec-subseq.wvr.bpl' [2021-07-10 09:19:55,625 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-10 09:19:55,627 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-10 09:19:55,628 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-10 09:19:55,628 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-10 09:19:55,628 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-10 09:19:55,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:19:55" (1/1) ... [2021-07-10 09:19:55,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:19:55" (1/1) ... [2021-07-10 09:19:55,647 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-10 09:19:55,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-10 09:19:55,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-10 09:19:55,648 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-10 09:19:55,653 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:19:55" (1/1) ... [2021-07-10 09:19:55,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:19:55" (1/1) ... [2021-07-10 09:19:55,654 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:19:55" (1/1) ... [2021-07-10 09:19:55,654 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:19:55" (1/1) ... [2021-07-10 09:19:55,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:19:55" (1/1) ... [2021-07-10 09:19:55,659 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:19:55" (1/1) ... [2021-07-10 09:19:55,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:19:55" (1/1) ... [2021-07-10 09:19:55,661 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-10 09:19:55,662 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-10 09:19:55,662 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-10 09:19:55,662 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-10 09:19:55,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:19:55" (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 [2021-07-10 09:19:55,732 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-10 09:19:55,732 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-10 09:19:55,732 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-10 09:19:55,732 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-10 09:19:55,732 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-10 09:19:55,733 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-10 09:19:55,733 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-10 09:19:55,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-10 09:19:55,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-10 09:19:55,733 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-10 09:19:55,869 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-10 09:19:55,870 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-10 09:19:55,871 INFO L202 PluginConnector]: Adding new model dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 09:19:55 BoogieIcfgContainer [2021-07-10 09:19:55,871 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-10 09:19:55,872 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-10 09:19:55,872 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-10 09:19:55,874 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-10 09:19:55,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:19:55" (1/2) ... [2021-07-10 09:19:55,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@696ea057 and model type dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 09:19:55, skipping insertion in model container [2021-07-10 09:19:55,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 09:19:55" (2/2) ... [2021-07-10 09:19:55,876 INFO L111 eAbstractionObserver]: Analyzing ICFG dec-subseq.wvr.bpl [2021-07-10 09:19:55,879 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-10 09:19:55,879 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-10 09:19:55,880 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-10 09:19:55,880 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-10 09:19:55,899 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-07-10 09:19:55,914 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 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 [2021-07-10 09:19:56,000 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-10 09:19:56,000 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-10 09:19:56,000 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-10 09:19:56,000 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-10 09:19:56,009 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-10 09:19:56,009 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-10 09:19:56,009 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-10 09:19:56,009 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-10 09:19:56,118 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 09:19:56,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 09:19:56,122 INFO L82 PathProgramCache]: Analyzing trace with hash 1440250194, now seen corresponding path program 1 times [2021-07-10 09:19:56,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 09:19:56,127 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789274417] [2021-07-10 09:19:56,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 09:19:56,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:19:56,248 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 09:19:56,248 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 09:19:56,248 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789274417] [2021-07-10 09:19:56,249 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789274417] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 09:19:56,249 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 09:19:56,249 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-10 09:19:56,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280041781] [2021-07-10 09:19:56,252 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-10 09:19:56,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 09:19:56,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-10 09:19:56,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-10 09:19:56,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:19:56,263 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 09:19:56,264 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2021-07-10 09:19:56,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:19:56,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 09:19:56,320 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-10 09:19:56,320 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 09:19:56,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 09:19:56,323 INFO L82 PathProgramCache]: Analyzing trace with hash 953624060, now seen corresponding path program 2 times [2021-07-10 09:19:56,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 09:19:56,323 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987113918] [2021-07-10 09:19:56,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 09:19:56,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:19:56,462 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:19:56,462 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 09:19:56,462 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987113918] [2021-07-10 09:19:56,462 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987113918] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:19:56,463 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830445180] [2021-07-10 09:19:56,463 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 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 [2021-07-10 09:19:56,526 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 09:19:56,526 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 09:19:56,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-10 09:19:56,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 09:19:56,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-10 09:19:56,714 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 09:19:56,718 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 09:19:56,720 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-10 09:19:56,720 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:7 [2021-07-10 09:19:56,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-07-10 09:19:56,741 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 09:19:56,744 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 09:19:56,746 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-10 09:19:56,746 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2021-07-10 09:19:56,775 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:19:56,775 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1830445180] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:19:56,775 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 09:19:56,775 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 11 [2021-07-10 09:19:56,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52970980] [2021-07-10 09:19:56,776 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-10 09:19:56,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 09:19:56,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-10 09:19:56,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-07-10 09:19:56,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:19:56,777 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 09:19:56,777 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 11 states have internal predecessors, (32), 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) [2021-07-10 09:19:56,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 09:19:56,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:19:56,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 09:19:56,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:19:57,056 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 09:19:57,056 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 09:19:57,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 09:19:57,057 INFO L82 PathProgramCache]: Analyzing trace with hash 1528104033, now seen corresponding path program 3 times [2021-07-10 09:19:57,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 09:19:57,057 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275927869] [2021-07-10 09:19:57,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 09:19:57,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:19:57,376 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 09:19:57,376 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 09:19:57,376 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275927869] [2021-07-10 09:19:57,376 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275927869] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:19:57,377 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414511027] [2021-07-10 09:19:57,377 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 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 [2021-07-10 09:19:57,426 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-07-10 09:19:57,426 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 09:19:57,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 25 conjunts are in the unsatisfiable core [2021-07-10 09:19:57,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 09:19:57,687 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 09:19:57,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 26 [2021-07-10 09:19:57,701 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 09:19:57,707 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 09:19:57,709 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-10 09:19:57,709 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:34, output treesize:20 [2021-07-10 09:19:57,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:19:57,775 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 09:19:57,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 30 [2021-07-10 09:19:57,829 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-07-10 09:19:57,838 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 09:19:57,852 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-10 09:19:57,853 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:33, output treesize:26 [2021-07-10 09:19:57,925 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:19:57,925 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414511027] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:19:57,926 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 09:19:57,926 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 27 [2021-07-10 09:19:57,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791284185] [2021-07-10 09:19:57,929 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-10 09:19:57,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 09:19:57,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-10 09:19:57,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=632, Unknown=0, NotChecked=0, Total=756 [2021-07-10 09:19:57,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:19:57,931 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 09:19:57,931 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 2.0) internal successors, (56), 27 states have internal predecessors, (56), 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) [2021-07-10 09:19:57,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 09:19:57,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:19:57,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:19:58,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 09:19:58,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:19:58,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-10 09:19:59,104 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 09:19:59,105 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 09:19:59,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 09:19:59,105 INFO L82 PathProgramCache]: Analyzing trace with hash 132224373, now seen corresponding path program 4 times [2021-07-10 09:19:59,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 09:19:59,105 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067149100] [2021-07-10 09:19:59,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 09:19:59,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:19:59,160 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 46 proven. 17 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-07-10 09:19:59,161 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 09:19:59,161 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067149100] [2021-07-10 09:19:59,161 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067149100] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:19:59,161 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420909208] [2021-07-10 09:19:59,161 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 09:19:59,198 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-10 09:19:59,199 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 09:19:59,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-10 09:19:59,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 09:19:59,303 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-07-10 09:19:59,303 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1420909208] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 09:19:59,303 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-07-10 09:19:59,303 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2021-07-10 09:19:59,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892665846] [2021-07-10 09:19:59,304 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-10 09:19:59,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 09:19:59,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-10 09:19:59,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-07-10 09:19:59,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:19:59,305 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 09:19:59,305 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 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) [2021-07-10 09:19:59,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 09:19:59,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:19:59,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-07-10 09:19:59,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:19:59,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 09:19:59,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:19:59,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-10 09:19:59,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 09:19:59,732 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 09:19:59,738 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-10 09:19:59,740 INFO L202 PluginConnector]: Adding new model dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 09:19:59 BasicIcfg [2021-07-10 09:19:59,740 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-10 09:19:59,740 INFO L168 Benchmark]: Toolchain (without parser) took 4113.82 ms. Allocated memory was 216.0 MB in the beginning and 282.1 MB in the end (delta: 66.1 MB). Free memory was 195.8 MB in the beginning and 234.6 MB in the end (delta: -38.8 MB). Peak memory consumption was 28.4 MB. Max. memory is 8.0 GB. [2021-07-10 09:19:59,740 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 216.0 MB. Free memory is still 197.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-10 09:19:59,740 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.70 ms. Allocated memory is still 216.0 MB. Free memory was 195.8 MB in the beginning and 194.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-07-10 09:19:59,740 INFO L168 Benchmark]: Boogie Preprocessor took 13.66 ms. Allocated memory is still 216.0 MB. Free memory was 194.3 MB in the beginning and 193.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-10 09:19:59,741 INFO L168 Benchmark]: RCFGBuilder took 208.89 ms. Allocated memory is still 216.0 MB. Free memory was 193.3 MB in the beginning and 180.4 MB in the end (delta: 12.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-07-10 09:19:59,741 INFO L168 Benchmark]: TraceAbstraction took 3867.52 ms. Allocated memory was 216.0 MB in the beginning and 282.1 MB in the end (delta: 66.1 MB). Free memory was 179.9 MB in the beginning and 234.6 MB in the end (delta: -54.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 8.0 GB. [2021-07-10 09:19:59,741 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 216.0 MB. Free memory is still 197.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 19.70 ms. Allocated memory is still 216.0 MB. Free memory was 195.8 MB in the beginning and 194.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.66 ms. Allocated memory is still 216.0 MB. Free memory was 194.3 MB in the beginning and 193.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 208.89 ms. Allocated memory is still 216.0 MB. Free memory was 193.3 MB in the beginning and 180.4 MB in the end (delta: 12.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3867.52 ms. Allocated memory was 216.0 MB in the beginning and 282.1 MB in the end (delta: 66.1 MB). Free memory was 179.9 MB in the beginning and 234.6 MB in the end (delta: -54.7 MB). Peak memory consumption was 12.7 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: 877, positive: 713, positive conditional: 465, positive unconditional: 248, negative: 164, negative conditional: 152, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 741, positive: 713, positive conditional: 465, positive unconditional: 248, negative: 28, negative conditional: 16, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 741, positive: 676, positive conditional: 0, positive unconditional: 676, negative: 65, negative conditional: 0, negative unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 167, positive: 162, positive conditional: 0, positive unconditional: 162, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 167, positive: 157, positive conditional: 0, positive unconditional: 157, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 41, positive: 15, positive conditional: 10, positive unconditional: 5, negative: 26, negative conditional: 21, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 104, positive: 59, positive conditional: 17, positive unconditional: 43, negative: 45, negative conditional: 33, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 741, positive: 514, positive conditional: 0, positive unconditional: 514, negative: 60, negative conditional: 0, negative unconditional: 60, unknown: 167, unknown conditional: 0, unknown unconditional: 167] , Statistics on independence cache: Total cache size (in pairs): 198, Positive cache size: 172, Positive conditional cache size: 10, Positive unconditional cache size: 162, Negative cache size: 26, Negative conditional cache size: 21, Negative unconditional cache size: 5, SemanticConditionEliminator.Independence Queries: [ total: 124, positive: 37, positive conditional: 37, positive unconditional: 0, negative: 87, negative conditional: 66, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 124, positive: 37, positive conditional: 37, positive unconditional: 0, negative: 87, negative conditional: 66, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 41, positive: 15, positive conditional: 10, positive unconditional: 5, negative: 26, negative conditional: 21, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 104, positive: 59, positive conditional: 17, positive unconditional: 43, negative: 45, negative conditional: 33, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 124, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 66, negative conditional: 45, negative unconditional: 21, unknown: 31, unknown conditional: 31, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 198, Positive cache size: 172, Positive conditional cache size: 10, Positive unconditional cache size: 162, Negative cache size: 26, Negative conditional cache size: 21, Negative unconditional cache size: 5, Eliminated conditions: 21, SemanticConditionEliminator.Independence Queries: [ total: 124, positive: 37, positive conditional: 37, positive unconditional: 0, negative: 87, negative conditional: 66, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 124, positive: 37, positive conditional: 37, positive unconditional: 0, negative: 87, negative conditional: 66, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 41, positive: 15, positive conditional: 10, positive unconditional: 5, negative: 26, negative conditional: 21, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 104, positive: 59, positive conditional: 17, positive unconditional: 43, negative: 45, negative conditional: 33, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 124, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 66, negative conditional: 45, negative unconditional: 21, unknown: 31, unknown conditional: 31, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 198, Positive cache size: 172, Positive conditional cache size: 10, Positive unconditional cache size: 162, Negative cache size: 26, Negative conditional cache size: 21, Negative unconditional cache size: 5, Eliminated conditions: 21, SemanticConditionEliminator.Independence Queries: [ total: 124, positive: 37, positive conditional: 37, positive unconditional: 0, negative: 87, negative conditional: 66, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 124, positive: 37, positive conditional: 37, positive unconditional: 0, negative: 87, negative conditional: 66, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 41, positive: 15, positive conditional: 10, positive unconditional: 5, negative: 26, negative conditional: 21, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 104, positive: 59, positive conditional: 17, positive unconditional: 43, negative: 45, negative conditional: 33, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 124, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 66, negative conditional: 45, negative unconditional: 21, unknown: 31, unknown conditional: 31, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 198, Positive cache size: 172, Positive conditional cache size: 10, Positive unconditional cache size: 162, Negative cache size: 26, Negative conditional cache size: 21, Negative unconditional cache size: 5, Eliminated conditions: 21, SemanticConditionEliminator.Independence Queries: [ total: 124, positive: 37, positive conditional: 37, positive unconditional: 0, negative: 87, negative conditional: 66, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 124, positive: 37, positive conditional: 37, positive unconditional: 0, negative: 87, negative conditional: 66, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 41, positive: 15, positive conditional: 10, positive unconditional: 5, negative: 26, negative conditional: 21, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 104, positive: 59, positive conditional: 17, positive unconditional: 43, negative: 45, negative conditional: 33, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 124, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 66, negative conditional: 45, negative unconditional: 21, unknown: 31, unknown conditional: 31, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 198, Positive cache size: 172, Positive conditional cache size: 10, Positive unconditional cache size: 162, Negative cache size: 26, Negative conditional cache size: 21, Negative unconditional cache size: 5, Eliminated conditions: 21 ], Maximal queried relation: 4, Independence queries for same thread: 136 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 74, Number of persistent set computation: 33, Number of trivial persistent sets: 13, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 877, positive: 713, positive conditional: 465, positive unconditional: 248, negative: 164, negative conditional: 152, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 741, positive: 713, positive conditional: 465, positive unconditional: 248, negative: 28, negative conditional: 16, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 741, positive: 676, positive conditional: 0, positive unconditional: 676, negative: 65, negative conditional: 0, negative unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 167, positive: 162, positive conditional: 0, positive unconditional: 162, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 167, positive: 157, positive conditional: 0, positive unconditional: 157, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 41, positive: 15, positive conditional: 10, positive unconditional: 5, negative: 26, negative conditional: 21, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 104, positive: 59, positive conditional: 17, positive unconditional: 43, negative: 45, negative conditional: 33, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 741, positive: 514, positive conditional: 0, positive unconditional: 514, negative: 60, negative conditional: 0, negative unconditional: 60, unknown: 167, unknown conditional: 0, unknown unconditional: 167] , Statistics on independence cache: Total cache size (in pairs): 198, Positive cache size: 172, Positive conditional cache size: 10, Positive unconditional cache size: 162, Negative cache size: 26, Negative conditional cache size: 21, Negative unconditional cache size: 5, SemanticConditionEliminator.Independence Queries: [ total: 124, positive: 37, positive conditional: 37, positive unconditional: 0, negative: 87, negative conditional: 66, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 124, positive: 37, positive conditional: 37, positive unconditional: 0, negative: 87, negative conditional: 66, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 41, positive: 15, positive conditional: 10, positive unconditional: 5, negative: 26, negative conditional: 21, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 104, positive: 59, positive conditional: 17, positive unconditional: 43, negative: 45, negative conditional: 33, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 124, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 66, negative conditional: 45, negative unconditional: 21, unknown: 31, unknown conditional: 31, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 198, Positive cache size: 172, Positive conditional cache size: 10, Positive unconditional cache size: 162, Negative cache size: 26, Negative conditional cache size: 21, Negative unconditional cache size: 5, Eliminated conditions: 21, SemanticConditionEliminator.Independence Queries: [ total: 124, positive: 37, positive conditional: 37, positive unconditional: 0, negative: 87, negative conditional: 66, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 124, positive: 37, positive conditional: 37, positive unconditional: 0, negative: 87, negative conditional: 66, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 41, positive: 15, positive conditional: 10, positive unconditional: 5, negative: 26, negative conditional: 21, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 104, positive: 59, positive conditional: 17, positive unconditional: 43, negative: 45, negative conditional: 33, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 124, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 66, negative conditional: 45, negative unconditional: 21, unknown: 31, unknown conditional: 31, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 198, Positive cache size: 172, Positive conditional cache size: 10, Positive unconditional cache size: 162, Negative cache size: 26, Negative conditional cache size: 21, Negative unconditional cache size: 5, Eliminated conditions: 21, SemanticConditionEliminator.Independence Queries: [ total: 124, positive: 37, positive conditional: 37, positive unconditional: 0, negative: 87, negative conditional: 66, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 124, positive: 37, positive conditional: 37, positive unconditional: 0, negative: 87, negative conditional: 66, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 41, positive: 15, positive conditional: 10, positive unconditional: 5, negative: 26, negative conditional: 21, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 104, positive: 59, positive conditional: 17, positive unconditional: 43, negative: 45, negative conditional: 33, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 124, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 66, negative conditional: 45, negative unconditional: 21, unknown: 31, unknown conditional: 31, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 198, Positive cache size: 172, Positive conditional cache size: 10, Positive unconditional cache size: 162, Negative cache size: 26, Negative conditional cache size: 21, Negative unconditional cache size: 5, Eliminated conditions: 21, SemanticConditionEliminator.Independence Queries: [ total: 124, positive: 37, positive conditional: 37, positive unconditional: 0, negative: 87, negative conditional: 66, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 124, positive: 37, positive conditional: 37, positive unconditional: 0, negative: 87, negative conditional: 66, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 41, positive: 15, positive conditional: 10, positive unconditional: 5, negative: 26, negative conditional: 21, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 104, positive: 59, positive conditional: 17, positive unconditional: 43, negative: 45, negative conditional: 33, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 124, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 66, negative conditional: 45, negative unconditional: 21, unknown: 31, unknown conditional: 31, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 198, Positive cache size: 172, Positive conditional cache size: 10, Positive unconditional cache size: 162, Negative cache size: 26, Negative conditional cache size: 21, Negative unconditional cache size: 5, Eliminated conditions: 21 ], Maximal queried relation: 4, Independence queries for same thread: 136 - PositiveResult [Line: 62]: 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 5 procedures, 41 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3812.6ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.2ms, PartialOrderReductionTime: 1403.9ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 54, 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: 18.6ms SsaConstructionTime, 98.3ms SatisfiabilityAnalysisTime, 1383.1ms InterpolantComputationTime, 243 NumberOfCodeBlocks, 243 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 236 ConstructedInterpolants, 0 QuantifiedInterpolants, 1348 SizeOfPredicates, 18 NumberOfNonLiveVariables, 233 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 153/198 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...