/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sorted.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-17 10:38:15,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-17 10:38:15,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-17 10:38:15,054 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-17 10:38:15,109 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf [2021-06-17 10:38:15,146 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-17 10:38:15,147 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-17 10:38:15,147 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-17 10:38:15,147 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-17 10:38:15,149 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-17 10:38:15,149 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-17 10:38:15,150 INFO L138 SettingsManager]: * Use SBE=true [2021-06-17 10:38:15,150 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-17 10:38:15,150 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-17 10:38:15,150 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-17 10:38:15,151 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-17 10:38:15,151 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-17 10:38:15,151 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-17 10:38:15,151 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-17 10:38:15,151 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-17 10:38:15,151 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-17 10:38:15,152 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-17 10:38:15,152 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-17 10:38:15,152 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-17 10:38:15,152 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-17 10:38:15,152 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-17 10:38:15,152 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-17 10:38:15,152 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-17 10:38:15,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-17 10:38:15,153 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-17 10:38:15,153 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-17 10:38:15,153 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-17 10:38:15,153 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-17 10:38:15,153 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-06-17 10:38:15,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-17 10:38:15,153 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-17 10:38:15,154 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-17 10:38:15,154 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-17 10:38:15,154 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-06-17 10:38:15,154 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-17 10:38:15,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-17 10:38:15,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-17 10:38:15,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-17 10:38:15,475 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-17 10:38:15,478 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-17 10:38:15,478 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sorted.wvr.bpl [2021-06-17 10:38:15,479 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sorted.wvr.bpl' [2021-06-17 10:38:15,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-17 10:38:15,678 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-17 10:38:15,679 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-17 10:38:15,679 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-17 10:38:15,679 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-17 10:38:15,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 10:38:15" (1/1) ... [2021-06-17 10:38:15,697 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 10:38:15" (1/1) ... [2021-06-17 10:38:15,702 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-17 10:38:15,703 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-17 10:38:15,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-17 10:38:15,704 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-17 10:38:15,710 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 10:38:15" (1/1) ... [2021-06-17 10:38:15,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 10:38:15" (1/1) ... [2021-06-17 10:38:15,712 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 10:38:15" (1/1) ... [2021-06-17 10:38:15,712 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 10:38:15" (1/1) ... [2021-06-17 10:38:15,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 10:38:15" (1/1) ... [2021-06-17 10:38:15,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 10:38:15" (1/1) ... [2021-06-17 10:38:15,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 10:38:15" (1/1) ... [2021-06-17 10:38:15,719 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-17 10:38:15,723 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-17 10:38:15,723 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-17 10:38:15,724 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-17 10:38:15,724 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 10:38:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-17 10:38:15,789 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-17 10:38:15,789 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-17 10:38:15,789 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-17 10:38:15,789 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-17 10:38:15,789 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-17 10:38:15,790 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-17 10:38:15,790 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-17 10:38:15,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-17 10:38:15,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-17 10:38:15,790 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-17 10:38:15,790 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-17 10:38:15,790 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-17 10:38:15,791 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-17 10:38:15,952 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-17 10:38:15,953 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-17 10:38:15,955 INFO L202 PluginConnector]: Adding new model sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 10:38:15 BoogieIcfgContainer [2021-06-17 10:38:15,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-17 10:38:15,956 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-17 10:38:15,956 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-17 10:38:15,959 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-17 10:38:15,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 10:38:15" (1/2) ... [2021-06-17 10:38:15,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ac550c7 and model type sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.06 10:38:15, skipping insertion in model container [2021-06-17 10:38:15,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 10:38:15" (2/2) ... [2021-06-17 10:38:15,961 INFO L111 eAbstractionObserver]: Analyzing ICFG sorted.wvr.bpl [2021-06-17 10:38:15,966 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-17 10:38:15,966 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-17 10:38:15,966 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-17 10:38:15,967 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-17 10:38:16,017 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-17 10:38:16,034 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-17 10:38:16,112 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-17 10:38:16,112 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-17 10:38:16,112 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-17 10:38:16,112 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-17 10:38:16,112 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-17 10:38:16,112 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-17 10:38:16,113 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-17 10:38:16,113 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-17 10:38:16,207 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 10:38:16,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 10:38:16,211 INFO L82 PathProgramCache]: Analyzing trace with hash -318664644, now seen corresponding path program 1 times [2021-06-17 10:38:16,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 10:38:16,218 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923393959] [2021-06-17 10:38:16,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 10:38:16,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 10:38:16,458 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-17 10:38:16,458 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 10:38:16,459 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923393959] [2021-06-17 10:38:16,459 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923393959] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:38:16,459 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562245595] [2021-06-17 10:38:16,460 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 [2021-06-17 10:38:16,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 10:38:16,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-17 10:38:16,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 10:38:16,828 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-17 10:38:16,829 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562245595] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:38:16,829 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 10:38:16,829 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-06-17 10:38:16,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809239472] [2021-06-17 10:38:16,837 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-17 10:38:16,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 10:38:16,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-17 10:38:16,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-06-17 10:38:16,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:38:16,853 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 10:38:16,855 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 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) [2021-06-17 10:38:16,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:38:17,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-17 10:38:17,385 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-06-17 10:38:17,385 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 10:38:17,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 10:38:17,386 INFO L82 PathProgramCache]: Analyzing trace with hash -2115106376, now seen corresponding path program 2 times [2021-06-17 10:38:17,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 10:38:17,386 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980742192] [2021-06-17 10:38:17,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 10:38:17,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 10:38:17,508 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-17 10:38:17,509 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 10:38:17,509 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980742192] [2021-06-17 10:38:17,510 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980742192] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:38:17,510 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351773582] [2021-06-17 10:38:17,510 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 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 [2021-06-17 10:38:17,564 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 10:38:17,564 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 10:38:17,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-17 10:38:17,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 10:38:17,709 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-06-17 10:38:17,709 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351773582] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:38:17,709 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 10:38:17,709 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2021-06-17 10:38:17,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304625833] [2021-06-17 10:38:17,710 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-17 10:38:17,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 10:38:17,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-17 10:38:17,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-06-17 10:38:17,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:38:17,712 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 10:38:17,712 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 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) [2021-06-17 10:38:17,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-17 10:38:17,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:38:17,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-17 10:38:17,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 10:38:18,208 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 10:38:18,209 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 10:38:18,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 10:38:18,210 INFO L82 PathProgramCache]: Analyzing trace with hash -777581274, now seen corresponding path program 3 times [2021-06-17 10:38:18,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 10:38:18,210 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852615286] [2021-06-17 10:38:18,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 10:38:18,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 10:38:18,330 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 10 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 10:38:18,331 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 10:38:18,331 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852615286] [2021-06-17 10:38:18,331 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852615286] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:38:18,331 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668921046] [2021-06-17 10:38:18,331 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 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 [2021-06-17 10:38:18,370 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-06-17 10:38:18,371 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 10:38:18,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-17 10:38:18,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 10:38:18,575 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 15 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-06-17 10:38:18,575 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [668921046] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:38:18,576 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 10:38:18,576 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 19 [2021-06-17 10:38:18,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458118008] [2021-06-17 10:38:18,576 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-17 10:38:18,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 10:38:18,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-17 10:38:18,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2021-06-17 10:38:18,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:38:18,578 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 10:38:18,578 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 19 states have internal predecessors, (63), 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) [2021-06-17 10:38:18,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-17 10:38:18,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-17 10:38:18,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:38:18,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-17 10:38:18,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 10:38:18,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 10:38:19,173 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 10:38:19,173 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 10:38:19,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 10:38:19,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1865494060, now seen corresponding path program 4 times [2021-06-17 10:38:19,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 10:38:19,174 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108000914] [2021-06-17 10:38:19,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 10:38:19,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 10:38:19,467 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 14 proven. 52 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-17 10:38:19,468 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 10:38:19,468 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108000914] [2021-06-17 10:38:19,468 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108000914] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:38:19,472 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258856711] [2021-06-17 10:38:19,472 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 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 10:38:19,547 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-17 10:38:19,548 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 10:38:19,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 17 conjunts are in the unsatisfiable core [2021-06-17 10:38:19,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 10:38:19,955 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 15 proven. 50 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-06-17 10:38:19,956 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1258856711] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:38:19,956 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 10:38:19,956 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 21 [2021-06-17 10:38:19,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993843081] [2021-06-17 10:38:19,957 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-06-17 10:38:19,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 10:38:19,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-06-17 10:38:19,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2021-06-17 10:38:19,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:38:19,958 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 10:38:19,958 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 3.5714285714285716) internal successors, (75), 21 states have internal predecessors, (75), 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) [2021-06-17 10:38:19,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-17 10:38:19,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-17 10:38:19,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-17 10:38:19,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:38:20,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-17 10:38:20,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 10:38:20,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-17 10:38:20,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-17 10:38:20,710 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 10:38:20,710 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 10:38:20,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 10:38:20,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1794401766, now seen corresponding path program 5 times [2021-06-17 10:38:20,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 10:38:20,711 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993068873] [2021-06-17 10:38:20,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 10:38:20,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 10:38:21,744 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-06-17 10:38:23,187 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 118 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 10:38:23,187 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 10:38:23,187 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993068873] [2021-06-17 10:38:23,187 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993068873] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:38:23,187 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51299050] [2021-06-17 10:38:23,188 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 10:38:23,256 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-06-17 10:38:23,256 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 10:38:23,258 WARN L261 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 65 conjunts are in the unsatisfiable core [2021-06-17 10:38:23,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 10:38:26,087 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 196 [2021-06-17 10:38:26,267 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 207 [2021-06-17 10:38:26,403 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 207 [2021-06-17 10:38:30,521 WARN L205 SmtUtils]: Spent 3.72 s on a formula simplification. DAG size of input: 207 DAG size of output: 102 [2021-06-17 10:38:35,378 WARN L205 SmtUtils]: Spent 3.21 s on a formula simplification. DAG size of input: 560 DAG size of output: 551 [2021-06-17 10:38:39,889 WARN L205 SmtUtils]: Spent 3.34 s on a formula simplification. DAG size of input: 558 DAG size of output: 535 [2021-06-17 10:38:40,320 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 10:38:40,321 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51299050] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:38:40,321 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 10:38:40,321 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 27] total 53 [2021-06-17 10:38:40,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083349950] [2021-06-17 10:38:40,324 INFO L462 AbstractCegarLoop]: Interpolant automaton has 53 states [2021-06-17 10:38:40,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 10:38:40,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-06-17 10:38:40,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=265, Invalid=2491, Unknown=0, NotChecked=0, Total=2756 [2021-06-17 10:38:40,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:38:40,326 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 10:38:40,326 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 53 states, 53 states have (on average 2.0) internal successors, (106), 53 states have internal predecessors, (106), 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) [2021-06-17 10:38:40,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-17 10:38:40,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-17 10:38:40,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-17 10:38:40,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-17 10:38:40,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:38:42,386 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 69 [2021-06-17 10:38:42,949 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 72 [2021-06-17 10:38:43,659 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 63 [2021-06-17 10:38:44,066 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 69 [2021-06-17 10:38:44,493 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 86 [2021-06-17 10:38:44,715 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 75 [2021-06-17 10:38:44,949 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 80 [2021-06-17 10:38:45,247 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 76 [2021-06-17 10:38:45,462 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2021-06-17 10:38:45,684 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 78 [2021-06-17 10:38:46,030 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 82 [2021-06-17 10:38:46,234 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 93 [2021-06-17 10:38:46,583 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2021-06-17 10:38:46,829 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 85 [2021-06-17 10:38:47,042 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-17 10:38:47,237 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2021-06-17 10:38:47,494 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 89 [2021-06-17 10:38:47,734 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 76 [2021-06-17 10:38:48,142 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 88 [2021-06-17 10:38:48,448 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 83 [2021-06-17 10:38:48,768 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 85 [2021-06-17 10:38:49,040 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 91 [2021-06-17 10:38:49,265 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 44 [2021-06-17 10:38:49,559 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 84 [2021-06-17 10:38:49,811 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 84 [2021-06-17 10:38:50,032 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2021-06-17 10:38:50,392 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 72 [2021-06-17 10:38:50,697 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 67 [2021-06-17 10:38:51,016 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 68 [2021-06-17 10:38:51,345 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 80 [2021-06-17 10:38:51,657 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 95 [2021-06-17 10:38:51,858 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 76 [2021-06-17 10:38:52,134 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 102 [2021-06-17 10:38:52,403 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2021-06-17 10:38:52,691 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 96 [2021-06-17 10:38:52,858 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2021-06-17 10:38:53,221 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 100 [2021-06-17 10:38:53,527 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 92 [2021-06-17 10:38:53,725 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 73 [2021-06-17 10:38:53,971 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 78 [2021-06-17 10:38:54,246 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 77 [2021-06-17 10:38:54,556 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 66 [2021-06-17 10:38:54,831 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 95 [2021-06-17 10:38:55,154 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 103 [2021-06-17 10:38:55,630 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 92 [2021-06-17 10:38:55,874 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 85 [2021-06-17 10:38:56,176 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 86 [2021-06-17 10:38:56,601 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 95 [2021-06-17 10:38:56,774 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 65 [2021-06-17 10:38:57,151 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 77 [2021-06-17 10:38:57,329 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2021-06-17 10:38:57,648 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2021-06-17 10:38:57,886 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2021-06-17 10:38:58,218 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2021-06-17 10:38:58,508 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2021-06-17 10:38:58,967 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 64 [2021-06-17 10:38:59,150 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2021-06-17 10:38:59,624 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2021-06-17 10:38:59,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-17 10:38:59,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 10:38:59,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-17 10:38:59,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-17 10:38:59,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2021-06-17 10:38:59,848 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 10:38:59,849 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 10:38:59,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 10:38:59,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1377285572, now seen corresponding path program 6 times [2021-06-17 10:38:59,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 10:38:59,850 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720501281] [2021-06-17 10:38:59,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 10:38:59,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 10:39:00,011 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 79 proven. 139 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-17 10:39:00,012 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 10:39:00,012 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720501281] [2021-06-17 10:39:00,012 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720501281] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:39:00,012 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637234680] [2021-06-17 10:39:00,012 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 10:39:00,084 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2021-06-17 10:39:00,084 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 10:39:00,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 28 conjunts are in the unsatisfiable core [2021-06-17 10:39:00,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 10:39:00,538 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 83 proven. 134 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-06-17 10:39:00,538 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1637234680] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:39:00,538 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 10:39:00,539 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 21] total 32 [2021-06-17 10:39:00,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679568004] [2021-06-17 10:39:00,540 INFO L462 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-06-17 10:39:00,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 10:39:00,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-06-17 10:39:00,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=206, Invalid=786, Unknown=0, NotChecked=0, Total=992 [2021-06-17 10:39:00,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:39:00,541 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 10:39:00,541 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 3.6875) internal successors, (118), 32 states have internal predecessors, (118), 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) [2021-06-17 10:39:00,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-17 10:39:00,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-17 10:39:00,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-17 10:39:00,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-17 10:39:00,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 115 states. [2021-06-17 10:39:00,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:39:01,412 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2021-06-17 10:39:01,600 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-06-17 10:39:01,877 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2021-06-17 10:39:02,045 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 68 [2021-06-17 10:39:02,311 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2021-06-17 10:39:02,572 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 95 [2021-06-17 10:39:02,847 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 73 [2021-06-17 10:39:03,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-17 10:39:03,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 10:39:03,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-17 10:39:03,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-17 10:39:03,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2021-06-17 10:39:03,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-17 10:39:03,418 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 10:39:03,419 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 10:39:03,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 10:39:03,419 INFO L82 PathProgramCache]: Analyzing trace with hash -1680947664, now seen corresponding path program 7 times [2021-06-17 10:39:03,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 10:39:03,419 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906287600] [2021-06-17 10:39:03,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 10:39:03,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 10:39:03,651 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 65 proven. 386 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-06-17 10:39:03,651 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 10:39:03,652 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906287600] [2021-06-17 10:39:03,652 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906287600] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:39:03,652 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [460447681] [2021-06-17 10:39:03,652 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 10:39:03,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 10:39:03,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 39 conjunts are in the unsatisfiable core [2021-06-17 10:39:03,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 10:39:04,076 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 66 proven. 384 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-06-17 10:39:04,076 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [460447681] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:39:04,076 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 10:39:04,076 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 26] total 36 [2021-06-17 10:39:04,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530290765] [2021-06-17 10:39:04,077 INFO L462 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-06-17 10:39:04,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 10:39:04,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-06-17 10:39:04,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=283, Invalid=977, Unknown=0, NotChecked=0, Total=1260 [2021-06-17 10:39:04,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:39:04,078 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 10:39:04,078 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 3.611111111111111) internal successors, (130), 36 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 10:39:04,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-17 10:39:04,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-17 10:39:04,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-17 10:39:04,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-17 10:39:04,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2021-06-17 10:39:04,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-06-17 10:39:04,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:39:04,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-17 10:39:04,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 10:39:04,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-17 10:39:04,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-17 10:39:04,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2021-06-17 10:39:04,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-17 10:39:04,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-06-17 10:39:04,937 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2021-06-17 10:39:04,937 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 10:39:04,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 10:39:04,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1624999382, now seen corresponding path program 8 times [2021-06-17 10:39:04,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 10:39:04,938 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412873569] [2021-06-17 10:39:04,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 10:39:05,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 10:39:07,085 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-06-17 10:39:09,381 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 97 proven. 448 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 10:39:09,381 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 10:39:09,381 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412873569] [2021-06-17 10:39:09,381 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412873569] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:39:09,382 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [342577783] [2021-06-17 10:39:09,382 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 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 10:39:09,586 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 10:39:09,586 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 10:39:09,588 WARN L261 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 124 conjunts are in the unsatisfiable core [2021-06-17 10:39:09,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 10:39:12,246 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-06-17 10:39:13,050 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2021-06-17 10:39:13,315 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-06-17 10:39:13,595 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2021-06-17 10:39:13,876 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2021-06-17 10:39:14,620 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-06-17 10:39:14,894 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2021-06-17 10:39:15,183 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-06-17 10:39:15,453 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2021-06-17 10:39:15,776 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-06-17 10:39:16,109 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-06-17 10:39:16,462 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2021-06-17 10:39:22,202 WARN L205 SmtUtils]: Spent 5.34 s on a formula simplification. DAG size of input: 1223 DAG size of output: 1000 [2021-06-17 10:39:26,585 WARN L205 SmtUtils]: Spent 4.33 s on a formula simplification. DAG size of input: 1023 DAG size of output: 1023 [2021-06-17 10:39:30,949 WARN L205 SmtUtils]: Spent 4.36 s on a formula simplification. DAG size of input: 1023 DAG size of output: 1023 [2021-06-17 10:39:33,203 WARN L205 SmtUtils]: Spent 2.24 s on a formula simplification that was a NOOP. DAG size: 1023 [2021-06-17 10:40:49,522 WARN L205 SmtUtils]: Spent 1.25 m on a formula simplification. DAG size of input: 1023 DAG size of output: 254 [2021-06-17 10:40:50,118 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 1484 DAG size of output: 1484 [2021-06-17 10:40:53,103 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 1484 DAG size of output: 1484 [2021-06-17 10:40:53,213 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 1484 DAG size of output: 1484 [2021-06-17 10:40:54,562 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 268 [2021-06-17 10:40:54,671 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 265 [2021-06-17 10:40:55,020 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 275 [2021-06-17 10:40:55,253 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 366 DAG size of output: 365 [2021-06-17 10:40:55,512 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 270 [2021-06-17 10:40:55,718 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 270 [2021-06-17 10:40:55,867 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 1379 DAG size of output: 1379 [2021-06-17 10:40:56,057 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 1604 DAG size of output: 1604 [2021-06-17 10:40:56,171 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 1604 DAG size of output: 1604 [2021-06-17 10:41:58,487 WARN L205 SmtUtils]: Spent 1.02 m on a formula simplification. DAG size of input: 1604 DAG size of output: 1487 [2021-06-17 10:41:59,981 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 1487 DAG size of output: 1487 [2021-06-17 10:42:00,259 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 1501 DAG size of output: 1501 [2021-06-17 10:42:00,365 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 1498 DAG size of output: 1498 [2021-06-17 10:42:00,956 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 1605 DAG size of output: 1604 [2021-06-17 10:43:11,907 WARN L205 SmtUtils]: Spent 1.15 m on a formula simplification. DAG size of input: 1498 DAG size of output: 1481 [2021-06-17 10:43:12,753 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 1495 DAG size of output: 1495 [2021-06-17 10:43:12,861 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 1492 DAG size of output: 1492 [2021-06-17 10:43:13,424 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 1599 DAG size of output: 1598 [2021-06-17 10:43:19,514 WARN L227 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2021-06-17 10:43:19,517 WARN L348 FreeRefinementEngine]: Global settings require throwing the following exception [2021-06-17 10:43:19,728 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 10:43:19,729 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:626) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:120) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:173) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:140) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:360) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:305) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:582) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:201) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:297) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:190) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:180) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:561) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:374) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:63) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:363) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:293) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:238) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:238) ... 53 more [2021-06-17 10:43:19,734 INFO L168 Benchmark]: Toolchain (without parser) took 304056.49 ms. Allocated memory was 206.6 MB in the beginning and 767.6 MB in the end (delta: 561.0 MB). Free memory was 186.7 MB in the beginning and 404.2 MB in the end (delta: -217.6 MB). Peak memory consumption was 344.5 MB. Max. memory is 8.0 GB. [2021-06-17 10:43:19,734 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 206.6 MB. Free memory is still 187.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-17 10:43:19,734 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.70 ms. Allocated memory is still 206.6 MB. Free memory was 186.5 MB in the beginning and 185.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-17 10:43:19,734 INFO L168 Benchmark]: Boogie Preprocessor took 15.49 ms. Allocated memory is still 206.6 MB. Free memory was 185.1 MB in the beginning and 184.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-17 10:43:19,735 INFO L168 Benchmark]: RCFGBuilder took 231.80 ms. Allocated memory is still 206.6 MB. Free memory was 184.0 MB in the beginning and 170.8 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-06-17 10:43:19,735 INFO L168 Benchmark]: TraceAbstraction took 303777.49 ms. Allocated memory was 206.6 MB in the beginning and 767.6 MB in the end (delta: 561.0 MB). Free memory was 170.2 MB in the beginning and 404.2 MB in the end (delta: -234.0 MB). Peak memory consumption was 327.7 MB. Max. memory is 8.0 GB. [2021-06-17 10:43:19,735 INFO L339 ainManager$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 206.6 MB. Free memory is still 187.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 23.70 ms. Allocated memory is still 206.6 MB. Free memory was 186.5 MB in the beginning and 185.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 15.49 ms. Allocated memory is still 206.6 MB. Free memory was 185.1 MB in the beginning and 184.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 231.80 ms. Allocated memory is still 206.6 MB. Free memory was 184.0 MB in the beginning and 170.8 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 303777.49 ms. Allocated memory was 206.6 MB in the beginning and 767.6 MB in the end (delta: 561.0 MB). Free memory was 170.2 MB in the beginning and 404.2 MB in the end (delta: -234.0 MB). Peak memory consumption was 327.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...