/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-None-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/inc-subseq.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-13 05:34:04,496 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-13 05:34:04,498 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-13 05:34:04,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-13 05:34:04,606 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-None-NoLbe.epf [2021-06-13 05:34:04,642 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-13 05:34:04,643 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-13 05:34:04,643 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-13 05:34:04,643 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-13 05:34:04,646 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-13 05:34:04,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-13 05:34:04,646 INFO L138 SettingsManager]: * Use SBE=true [2021-06-13 05:34:04,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-13 05:34:04,646 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-13 05:34:04,646 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-13 05:34:04,647 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-13 05:34:04,647 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-13 05:34:04,647 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-13 05:34:04,648 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-13 05:34:04,648 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-13 05:34:04,648 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-13 05:34:04,648 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-13 05:34:04,648 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-13 05:34:04,648 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-13 05:34:04,648 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-13 05:34:04,649 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-13 05:34:04,649 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-13 05:34:04,649 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-13 05:34:04,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 05:34:04,649 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-13 05:34:04,649 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-13 05:34:04,649 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-13 05:34:04,650 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-13 05:34:04,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-13 05:34:04,650 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-13 05:34:04,650 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-13 05:34:04,650 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-13 05:34:04,650 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-13 05:34:04,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-13 05:34:04,990 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-13 05:34:04,992 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-13 05:34:04,994 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-13 05:34:04,995 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-13 05:34:04,995 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/inc-subseq.wvr.bpl [2021-06-13 05:34:04,996 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/inc-subseq.wvr.bpl' [2021-06-13 05:34:05,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-13 05:34:05,031 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-13 05:34:05,031 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-13 05:34:05,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-13 05:34:05,032 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-13 05:34:05,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 05:34:05" (1/1) ... [2021-06-13 05:34:05,047 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 05:34:05" (1/1) ... [2021-06-13 05:34:05,053 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-13 05:34:05,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-13 05:34:05,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-13 05:34:05,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-13 05:34:05,062 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 05:34:05" (1/1) ... [2021-06-13 05:34:05,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 05:34:05" (1/1) ... [2021-06-13 05:34:05,063 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 05:34:05" (1/1) ... [2021-06-13 05:34:05,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 05:34:05" (1/1) ... [2021-06-13 05:34:05,067 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 05:34:05" (1/1) ... [2021-06-13 05:34:05,071 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 05:34:05" (1/1) ... [2021-06-13 05:34:05,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 05:34:05" (1/1) ... [2021-06-13 05:34:05,073 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-13 05:34:05,074 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-13 05:34:05,074 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-13 05:34:05,076 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-13 05:34:05,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 05:34:05" (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 [2021-06-13 05:34:05,148 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-13 05:34:05,149 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-13 05:34:05,149 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-13 05:34:05,149 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-13 05:34:05,149 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-13 05:34:05,149 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-13 05:34:05,149 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-13 05:34:05,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-13 05:34:05,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-13 05:34:05,150 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-13 05:34:05,388 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-13 05:34:05,389 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-13 05:34:05,390 INFO L202 PluginConnector]: Adding new model inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 05:34:05 BoogieIcfgContainer [2021-06-13 05:34:05,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-13 05:34:05,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-13 05:34:05,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-13 05:34:05,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-13 05:34:05,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 05:34:05" (1/2) ... [2021-06-13 05:34:05,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e2359d6 and model type inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 05:34:05, skipping insertion in model container [2021-06-13 05:34:05,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 05:34:05" (2/2) ... [2021-06-13 05:34:05,396 INFO L111 eAbstractionObserver]: Analyzing ICFG inc-subseq.wvr.bpl [2021-06-13 05:34:05,400 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-13 05:34:05,413 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-13 05:34:05,413 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-13 05:34:05,414 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-13 05:34:05,462 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-13 05:34:05,496 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 [2021-06-13 05:34:05,562 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 05:34:05,562 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 05:34:05,562 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 05:34:05,562 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 05:34:05,562 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 05:34:05,562 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 05:34:05,562 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 05:34:05,562 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-13 05:34:05,575 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 28 transitions, 72 flow [2021-06-13 05:34:05,592 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 65 states, 63 states have (on average 2.015873015873016) internal successors, (127), 64 states have internal predecessors, (127), 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) [2021-06-13 05:34:05,603 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 05:34:05,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 05:34:05,608 INFO L82 PathProgramCache]: Analyzing trace with hash 594757151, now seen corresponding path program 1 times [2021-06-13 05:34:05,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 05:34:05,619 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313413295] [2021-06-13 05:34:05,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 05:34:05,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 05:34:05,937 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 21 proven. 12 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-06-13 05:34:05,937 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 05:34:05,938 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313413295] [2021-06-13 05:34:05,938 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313413295] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 05:34:05,938 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711078707] [2021-06-13 05:34:05,939 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 [2021-06-13 05:34:05,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 05:34:05,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-13 05:34:06,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 05:34:06,209 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 31 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-06-13 05:34:06,209 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [711078707] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 05:34:06,209 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 05:34:06,210 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-06-13 05:34:06,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350884338] [2021-06-13 05:34:06,214 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 05:34:06,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 05:34:06,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 05:34:06,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-06-13 05:34:06,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 05:34:06,229 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 05:34:06,230 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 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) [2021-06-13 05:34:06,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 05:34:06,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 05:34:06,492 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-06-13 05:34:06,492 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 05:34:06,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 05:34:06,493 INFO L82 PathProgramCache]: Analyzing trace with hash 374747416, now seen corresponding path program 2 times [2021-06-13 05:34:06,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 05:34:06,493 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348786297] [2021-06-13 05:34:06,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 05:34:06,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 05:34:06,589 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 42 proven. 27 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-13 05:34:06,589 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 05:34:06,589 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348786297] [2021-06-13 05:34:06,589 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348786297] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 05:34:06,590 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873446140] [2021-06-13 05:34:06,590 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 [2021-06-13 05:34:06,661 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 05:34:06,661 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 05:34:06,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-13 05:34:06,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 05:34:06,878 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 55 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-13 05:34:06,879 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873446140] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 05:34:06,879 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 05:34:06,879 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-06-13 05:34:06,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017903420] [2021-06-13 05:34:06,880 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-13 05:34:06,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 05:34:06,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-13 05:34:06,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2021-06-13 05:34:06,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 05:34:06,881 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 05:34:06,881 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 8 states have internal predecessors, (58), 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) [2021-06-13 05:34:06,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-13 05:34:06,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 05:34:06,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 05:34:06,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-13 05:34:07,144 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 05:34:07,145 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 05:34:07,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 05:34:07,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1693775366, now seen corresponding path program 3 times [2021-06-13 05:34:07,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 05:34:07,146 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649574390] [2021-06-13 05:34:07,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 05:34:07,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 05:34:07,261 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 93 proven. 63 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-13 05:34:07,261 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 05:34:07,262 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649574390] [2021-06-13 05:34:07,262 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649574390] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 05:34:07,262 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556950577] [2021-06-13 05:34:07,262 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 [2021-06-13 05:34:07,318 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-06-13 05:34:07,318 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 05:34:07,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 63 conjunts are in the unsatisfiable core [2021-06-13 05:34:07,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 05:34:08,338 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 05:34:08,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 79 treesize of output 133 [2021-06-13 05:34:08,454 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-13 05:34:08,964 WARN L205 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 87 [2021-06-13 05:34:08,965 INFO L628 ElimStorePlain]: treesize reduction 424, result has 48.1 percent of original size [2021-06-13 05:34:09,131 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-13 05:34:09,132 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:80, output treesize:507 [2021-06-13 05:34:09,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:09,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:09,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:09,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:09,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:09,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,075 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 05:34:10,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 57 treesize of output 117 [2021-06-13 05:34:10,434 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2021-06-13 05:34:10,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,548 INFO L354 Elim1Store]: treesize reduction 78, result has 42.2 percent of original size [2021-06-13 05:34:10,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 16 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 12 case distinctions, treesize of input 68 treesize of output 78 [2021-06-13 05:34:10,582 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-13 05:34:10,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,706 INFO L354 Elim1Store]: treesize reduction 123, result has 17.4 percent of original size [2021-06-13 05:34:10,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 23 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 13 case distinctions, treesize of input 68 treesize of output 47 [2021-06-13 05:34:10,709 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-13 05:34:10,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:34:10,781 INFO L354 Elim1Store]: treesize reduction 107, result has 14.4 percent of original size [2021-06-13 05:34:10,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 68 treesize of output 39 [2021-06-13 05:34:10,784 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-13 05:34:10,850 INFO L628 ElimStorePlain]: treesize reduction 121, result has 34.9 percent of original size [2021-06-13 05:34:10,856 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-06-13 05:34:10,856 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:295, output treesize:47 [2021-06-13 05:34:10,981 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 70 proven. 82 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-13 05:34:10,982 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [556950577] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 05:34:10,982 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 05:34:10,982 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 33] total 40 [2021-06-13 05:34:10,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699478467] [2021-06-13 05:34:10,983 INFO L462 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-06-13 05:34:10,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 05:34:10,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-06-13 05:34:10,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=1438, Unknown=0, NotChecked=0, Total=1640 [2021-06-13 05:34:10,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 05:34:10,984 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 05:34:10,985 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 41 states, 41 states have (on average 3.1951219512195124) internal successors, (131), 40 states have internal predecessors, (131), 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) [2021-06-13 05:34:10,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-13 05:34:10,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-13 05:34:10,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 05:34:13,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 05:34:13,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-13 05:34:13,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-06-13 05:34:13,504 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 05:34:13,507 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 05:34:13,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 05:34:13,507 INFO L82 PathProgramCache]: Analyzing trace with hash 1975216430, now seen corresponding path program 1 times [2021-06-13 05:34:13,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 05:34:13,508 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472318392] [2021-06-13 05:34:13,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 05:34:13,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 05:34:13,728 INFO L134 CoverageAnalysis]: Checked inductivity of 499 backedges. 338 proven. 146 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-06-13 05:34:13,728 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 05:34:13,728 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472318392] [2021-06-13 05:34:13,728 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472318392] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 05:34:13,728 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556660170] [2021-06-13 05:34:13,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-06-13 05:34:13,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 05:34:13,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 22 conjunts are in the unsatisfiable core [2021-06-13 05:34:13,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 05:34:13,980 INFO L134 CoverageAnalysis]: Checked inductivity of 499 backedges. 374 proven. 110 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-06-13 05:34:13,981 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [556660170] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 05:34:13,981 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 05:34:13,981 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2021-06-13 05:34:13,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824764523] [2021-06-13 05:34:13,981 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-13 05:34:13,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 05:34:13,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-13 05:34:13,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=116, Unknown=0, NotChecked=0, Total=210 [2021-06-13 05:34:13,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 05:34:13,982 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 05:34:13,982 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.066666666666666) internal successors, (106), 14 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) [2021-06-13 05:34:13,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-13 05:34:13,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-13 05:34:13,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-06-13 05:34:13,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 05:34:14,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 05:34:14,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-13 05:34:14,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-06-13 05:34:14,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-13 05:34:14,293 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable144 [2021-06-13 05:34:14,293 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 05:34:14,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 05:34:14,294 INFO L82 PathProgramCache]: Analyzing trace with hash -1932079582, now seen corresponding path program 2 times [2021-06-13 05:34:14,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 05:34:14,294 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661334958] [2021-06-13 05:34:14,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 05:34:14,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 05:34:14,575 INFO L134 CoverageAnalysis]: Checked inductivity of 941 backedges. 612 proven. 314 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-06-13 05:34:14,575 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 05:34:14,575 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661334958] [2021-06-13 05:34:14,575 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661334958] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 05:34:14,575 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2049050381] [2021-06-13 05:34:14,576 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 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 [2021-06-13 05:34:14,643 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 05:34:14,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 05:34:14,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 30 conjunts are in the unsatisfiable core [2021-06-13 05:34:14,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 05:34:14,932 INFO L134 CoverageAnalysis]: Checked inductivity of 941 backedges. 660 proven. 266 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-06-13 05:34:14,933 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2049050381] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 05:34:14,933 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 05:34:14,933 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 18 [2021-06-13 05:34:14,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564939881] [2021-06-13 05:34:14,934 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-13 05:34:14,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 05:34:14,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-13 05:34:14,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=186, Unknown=0, NotChecked=0, Total=342 [2021-06-13 05:34:14,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 05:34:14,934 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 05:34:14,935 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 7.473684210526316) internal successors, (142), 18 states have internal predecessors, (142), 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) [2021-06-13 05:34:14,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-13 05:34:14,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-13 05:34:14,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-06-13 05:34:14,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-13 05:34:14,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 05:34:15,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 05:34:15,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-13 05:34:15,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-06-13 05:34:15,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-13 05:34:15,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-13 05:34:15,268 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 05:34:15,269 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 05:34:15,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 05:34:15,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1837763350, now seen corresponding path program 3 times [2021-06-13 05:34:15,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 05:34:15,269 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306542877] [2021-06-13 05:34:15,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 05:34:15,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 05:34:15,607 INFO L134 CoverageAnalysis]: Checked inductivity of 1527 backedges. 966 proven. 546 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-06-13 05:34:15,607 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 05:34:15,607 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306542877] [2021-06-13 05:34:15,607 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306542877] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 05:34:15,607 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915082667] [2021-06-13 05:34:15,607 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 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 [2021-06-13 05:34:15,708 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2021-06-13 05:34:15,708 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 05:34:15,712 WARN L261 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 194 conjunts are in the unsatisfiable core [2021-06-13 05:34:15,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 05:35:23,252 WARN L205 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-06-13 05:36:34,873 WARN L205 SmtUtils]: Spent 678.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-06-13 05:37:02,404 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-06-13 05:37:59,686 WARN L227 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2021-06-13 05:37:59,688 WARN L348 FreeRefinementEngine]: Global settings require throwing the following exception [2021-06-13 05:37:59,888 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable146 [2021-06-13 05:37:59,889 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.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:934) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:773) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:305) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$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:364) 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) ... 46 more [2021-06-13 05:37:59,894 INFO L168 Benchmark]: Toolchain (without parser) took 234863.25 ms. Allocated memory was 182.5 MB in the beginning and 368.1 MB in the end (delta: 185.6 MB). Free memory was 162.3 MB in the beginning and 233.8 MB in the end (delta: -71.5 MB). Peak memory consumption was 115.4 MB. Max. memory is 8.0 GB. [2021-06-13 05:37:59,896 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 182.5 MB. Free memory is still 163.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-13 05:37:59,896 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.13 ms. Allocated memory is still 182.5 MB. Free memory was 162.2 MB in the beginning and 160.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-06-13 05:37:59,896 INFO L168 Benchmark]: Boogie Preprocessor took 18.11 ms. Allocated memory is still 182.5 MB. Free memory was 160.8 MB in the beginning and 159.9 MB in the end (delta: 984.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-13 05:37:59,896 INFO L168 Benchmark]: RCFGBuilder took 316.08 ms. Allocated memory is still 182.5 MB. Free memory was 159.8 MB in the beginning and 146.2 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-06-13 05:37:59,896 INFO L168 Benchmark]: TraceAbstraction took 234501.63 ms. Allocated memory was 182.5 MB in the beginning and 368.1 MB in the end (delta: 185.6 MB). Free memory was 145.8 MB in the beginning and 233.8 MB in the end (delta: -88.1 MB). Peak memory consumption was 98.6 MB. Max. memory is 8.0 GB. [2021-06-13 05:37:59,897 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 182.5 MB. Free memory is still 163.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 22.13 ms. Allocated memory is still 182.5 MB. Free memory was 162.2 MB in the beginning and 160.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Preprocessor took 18.11 ms. Allocated memory is still 182.5 MB. Free memory was 160.8 MB in the beginning and 159.9 MB in the end (delta: 984.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 316.08 ms. Allocated memory is still 182.5 MB. Free memory was 159.8 MB in the beginning and 146.2 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 234501.63 ms. Allocated memory was 182.5 MB in the beginning and 368.1 MB in the end (delta: 185.6 MB). Free memory was 145.8 MB in the beginning and 233.8 MB in the end (delta: -88.1 MB). Peak memory consumption was 98.6 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...