/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-array.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-13 05:32:23,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-13 05:32:23,530 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-13 05:32:23,554 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-13 05:32:23,586 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 05:32:23,615 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-13 05:32:23,615 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-13 05:32:23,616 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-13 05:32:23,616 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-13 05:32:23,617 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-13 05:32:23,617 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-13 05:32:23,618 INFO L138 SettingsManager]: * Use SBE=true [2021-06-13 05:32:23,618 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-13 05:32:23,618 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-13 05:32:23,618 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-13 05:32:23,618 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-13 05:32:23,618 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-13 05:32:23,619 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-13 05:32:23,619 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-13 05:32:23,619 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-13 05:32:23,619 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-13 05:32:23,619 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-13 05:32:23,619 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-13 05:32:23,619 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-13 05:32:23,620 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-13 05:32:23,620 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-13 05:32:23,620 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-13 05:32:23,620 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-13 05:32:23,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 05:32:23,620 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-13 05:32:23,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-13 05:32:23,621 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-13 05:32:23,621 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-13 05:32:23,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-13 05:32:23,621 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-13 05:32:23,621 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-13 05:32:23,621 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-13 05:32:23,621 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-13 05:32:23,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-13 05:32:23,918 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-13 05:32:23,920 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-13 05:32:23,921 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-13 05:32:23,922 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-13 05:32:23,922 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/inc-subseq-array.wvr.bpl [2021-06-13 05:32:23,922 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/inc-subseq-array.wvr.bpl' [2021-06-13 05:32:23,956 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-13 05:32:23,957 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-13 05:32:23,958 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-13 05:32:23,958 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-13 05:32:23,959 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-13 05:32:23,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 05:32:23" (1/1) ... [2021-06-13 05:32:23,976 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 05:32:23" (1/1) ... [2021-06-13 05:32:23,983 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-13 05:32:23,985 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-13 05:32:23,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-13 05:32:23,986 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-13 05:32:23,993 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 05:32:23" (1/1) ... [2021-06-13 05:32:23,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 05:32:23" (1/1) ... [2021-06-13 05:32:23,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 05:32:23" (1/1) ... [2021-06-13 05:32:23,994 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 05:32:23" (1/1) ... [2021-06-13 05:32:23,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 05:32:23" (1/1) ... [2021-06-13 05:32:24,002 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 05:32:23" (1/1) ... [2021-06-13 05:32:24,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 05:32:23" (1/1) ... [2021-06-13 05:32:24,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-13 05:32:24,005 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-13 05:32:24,005 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-13 05:32:24,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-13 05:32:24,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 05:32:23" (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 05:32:24,078 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-13 05:32:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-13 05:32:24,078 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-13 05:32:24,078 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-13 05:32:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-13 05:32:24,078 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-13 05:32:24,078 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-13 05:32:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-13 05:32:24,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-13 05:32:24,079 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 05:32:24,344 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-13 05:32:24,344 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-13 05:32:24,346 INFO L202 PluginConnector]: Adding new model inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 05:32:24 BoogieIcfgContainer [2021-06-13 05:32:24,346 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-13 05:32:24,348 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-13 05:32:24,348 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-13 05:32:24,354 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-13 05:32:24,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 05:32:23" (1/2) ... [2021-06-13 05:32:24,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c93e0e and model type inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 05:32:24, skipping insertion in model container [2021-06-13 05:32:24,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 05:32:24" (2/2) ... [2021-06-13 05:32:24,357 INFO L111 eAbstractionObserver]: Analyzing ICFG inc-subseq-array.wvr.bpl [2021-06-13 05:32:24,361 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-13 05:32:24,361 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-13 05:32:24,362 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-13 05:32:24,362 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-13 05:32:24,415 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-13 05:32:24,432 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 05:32:24,493 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 05:32:24,493 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 05:32:24,493 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 05:32:24,493 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 05:32:24,493 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 05:32:24,494 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 05:32:24,494 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 05:32:24,494 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-13 05:32:24,505 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 28 transitions, 72 flow [2021-06-13 05:32:24,522 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 05:32:24,533 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 05:32:24,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 05:32:24,538 INFO L82 PathProgramCache]: Analyzing trace with hash 594757151, now seen corresponding path program 1 times [2021-06-13 05:32:24,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 05:32:24,549 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430224138] [2021-06-13 05:32:24,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 05:32:24,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 05:32:24,839 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 05:32:24,840 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 05:32:24,840 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430224138] [2021-06-13 05:32:24,841 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430224138] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 05:32:24,841 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201537757] [2021-06-13 05:32:24,841 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 05:32:24,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 05:32:24,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-13 05:32:24,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 05:32:25,125 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 05:32:25,126 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201537757] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 05:32:25,126 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 05:32:25,126 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-06-13 05:32:25,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642068634] [2021-06-13 05:32:25,131 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 05:32:25,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 05:32:25,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 05:32:25,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-06-13 05:32:25,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 05:32:25,143 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 05:32:25,143 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 05:32:25,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 05:32:25,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 05:32:25,418 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-06-13 05:32:25,418 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 05:32:25,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 05:32:25,419 INFO L82 PathProgramCache]: Analyzing trace with hash 374747416, now seen corresponding path program 2 times [2021-06-13 05:32:25,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 05:32:25,419 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751039862] [2021-06-13 05:32:25,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 05:32:25,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 05:32:25,576 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 05:32:25,576 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 05:32:25,576 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751039862] [2021-06-13 05:32:25,577 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751039862] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 05:32:25,577 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1165531796] [2021-06-13 05:32:25,577 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 05:32:25,625 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 05:32:25,626 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 05:32:25,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-13 05:32:25,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 05:32:25,838 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 05:32:25,842 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1165531796] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 05:32:25,842 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 05:32:25,843 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-06-13 05:32:25,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348650830] [2021-06-13 05:32:25,845 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-13 05:32:25,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 05:32:25,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-13 05:32:25,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2021-06-13 05:32:25,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 05:32:25,851 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 05:32:25,851 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 05:32:25,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-13 05:32:25,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 05:32:25,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 05:32:25,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-13 05:32:26,136 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 05:32:26,137 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 05:32:26,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 05:32:26,137 INFO L82 PathProgramCache]: Analyzing trace with hash -1693775366, now seen corresponding path program 3 times [2021-06-13 05:32:26,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 05:32:26,138 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997425652] [2021-06-13 05:32:26,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 05:32:26,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 05:32:26,256 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 05:32:26,256 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 05:32:26,256 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997425652] [2021-06-13 05:32:26,256 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997425652] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 05:32:26,256 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265734074] [2021-06-13 05:32:26,256 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 05:32:26,331 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-06-13 05:32:26,331 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 05:32:26,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 63 conjunts are in the unsatisfiable core [2021-06-13 05:32:26,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 05:32:27,293 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 05:32:27,294 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 05:32:27,413 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-13 05:32:27,952 WARN L205 SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 87 [2021-06-13 05:32:27,953 INFO L628 ElimStorePlain]: treesize reduction 424, result has 48.1 percent of original size [2021-06-13 05:32:28,099 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 05:32:28,100 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:80, output treesize:507 [2021-06-13 05:32:28,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:28,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:28,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:28,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:28,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:28,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:28,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:28,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:28,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:28,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:28,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:28,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,035 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 05:32:29,035 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 05:32:29,373 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2021-06-13 05:32:29,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,503 INFO L354 Elim1Store]: treesize reduction 78, result has 42.2 percent of original size [2021-06-13 05:32:29,504 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 05:32:29,525 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-13 05:32:29,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,651 INFO L354 Elim1Store]: treesize reduction 123, result has 17.4 percent of original size [2021-06-13 05:32:29,652 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 05:32:29,656 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-13 05:32:29,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 05:32:29,748 INFO L354 Elim1Store]: treesize reduction 107, result has 14.4 percent of original size [2021-06-13 05:32:29,749 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 05:32:29,752 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-13 05:32:29,812 INFO L628 ElimStorePlain]: treesize reduction 121, result has 34.9 percent of original size [2021-06-13 05:32:29,817 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 05:32:29,817 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:295, output treesize:47 [2021-06-13 05:32:29,930 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 05:32:29,930 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265734074] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 05:32:29,931 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 05:32:29,931 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 33] total 40 [2021-06-13 05:32:29,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807620889] [2021-06-13 05:32:29,931 INFO L462 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-06-13 05:32:29,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 05:32:29,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-06-13 05:32:29,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=1438, Unknown=0, NotChecked=0, Total=1640 [2021-06-13 05:32:29,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 05:32:29,933 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 05:32:29,933 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 05:32:29,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-13 05:32:29,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-13 05:32:29,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 05:32:32,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 05:32:32,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-13 05:32:32,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-06-13 05:32:32,481 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 05:32:32,481 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 05:32:32,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 05:32:32,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1975216430, now seen corresponding path program 1 times [2021-06-13 05:32:32,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 05:32:32,482 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493762666] [2021-06-13 05:32:32,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 05:32:32,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 05:32:32,673 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 05:32:32,673 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 05:32:32,673 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493762666] [2021-06-13 05:32:32,673 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493762666] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 05:32:32,674 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011734658] [2021-06-13 05:32:32,674 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 05:32:32,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 05:32:32,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 22 conjunts are in the unsatisfiable core [2021-06-13 05:32:32,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 05:32:32,980 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 05:32:32,981 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011734658] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 05:32:32,981 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 05:32:32,981 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2021-06-13 05:32:32,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640316984] [2021-06-13 05:32:32,981 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-13 05:32:32,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 05:32:32,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-13 05:32:32,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=116, Unknown=0, NotChecked=0, Total=210 [2021-06-13 05:32:32,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 05:32:32,982 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 05:32:32,982 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 05:32:32,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-13 05:32:32,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-13 05:32:32,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-06-13 05:32:32,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 05:32:33,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 05:32:33,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-13 05:32:33,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-06-13 05:32:33,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-13 05:32:33,336 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable144 [2021-06-13 05:32:33,337 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 05:32:33,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 05:32:33,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1932079582, now seen corresponding path program 2 times [2021-06-13 05:32:33,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 05:32:33,338 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055154837] [2021-06-13 05:32:33,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 05:32:33,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 05:32:33,638 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 05:32:33,638 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 05:32:33,639 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055154837] [2021-06-13 05:32:33,639 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055154837] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 05:32:33,639 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870974609] [2021-06-13 05:32:33,639 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 05:32:33,722 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 05:32:33,722 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 05:32:33,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 30 conjunts are in the unsatisfiable core [2021-06-13 05:32:33,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 05:32:34,005 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 05:32:34,005 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870974609] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 05:32:34,005 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 05:32:34,005 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 18 [2021-06-13 05:32:34,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986084110] [2021-06-13 05:32:34,006 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-13 05:32:34,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 05:32:34,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-13 05:32:34,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=186, Unknown=0, NotChecked=0, Total=342 [2021-06-13 05:32:34,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 05:32:34,007 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 05:32:34,007 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 05:32:34,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-13 05:32:34,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-13 05:32:34,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-06-13 05:32:34,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-13 05:32:34,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 05:32:34,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 05:32:34,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-13 05:32:34,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-06-13 05:32:34,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-13 05:32:34,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-13 05:32:34,340 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 05:32:34,341 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 05:32:34,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 05:32:34,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1837763350, now seen corresponding path program 3 times [2021-06-13 05:32:34,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 05:32:34,342 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113672944] [2021-06-13 05:32:34,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 05:32:34,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 05:32:34,742 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 05:32:34,742 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 05:32:34,742 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113672944] [2021-06-13 05:32:34,743 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113672944] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 05:32:34,743 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33385752] [2021-06-13 05:32:34,743 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 05:32:34,858 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2021-06-13 05:32:34,858 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 05:32:34,863 WARN L261 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 194 conjunts are in the unsatisfiable core [2021-06-13 05:32:34,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 05:33:41,336 WARN L205 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-06-13 05:34:52,867 WARN L205 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-06-13 05:35:21,011 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-06-13 05:36:20,136 WARN L227 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2021-06-13 05:36:20,137 WARN L348 FreeRefinementEngine]: Global settings require throwing the following exception [2021-06-13 05:36:20,338 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable146 [2021-06-13 05:36:20,338 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 05:36:20,345 INFO L168 Benchmark]: Toolchain (without parser) took 236384.28 ms. Allocated memory was 176.2 MB in the beginning and 385.9 MB in the end (delta: 209.7 MB). Free memory was 156.4 MB in the beginning and 210.0 MB in the end (delta: -53.6 MB). Peak memory consumption was 156.7 MB. Max. memory is 8.0 GB. [2021-06-13 05:36:20,345 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 176.2 MB. Free memory is still 157.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-13 05:36:20,345 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.36 ms. Allocated memory is still 176.2 MB. Free memory was 156.3 MB in the beginning and 154.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-06-13 05:36:20,346 INFO L168 Benchmark]: Boogie Preprocessor took 18.89 ms. Allocated memory is still 176.2 MB. Free memory was 154.9 MB in the beginning and 154.0 MB in the end (delta: 908.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-13 05:36:20,346 INFO L168 Benchmark]: RCFGBuilder took 341.22 ms. Allocated memory is still 176.2 MB. Free memory was 153.9 MB in the beginning and 140.9 MB in the end (delta: 12.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-06-13 05:36:20,346 INFO L168 Benchmark]: TraceAbstraction took 235993.57 ms. Allocated memory was 176.2 MB in the beginning and 385.9 MB in the end (delta: 209.7 MB). Free memory was 140.5 MB in the beginning and 210.0 MB in the end (delta: -69.5 MB). Peak memory consumption was 140.9 MB. Max. memory is 8.0 GB. [2021-06-13 05:36:20,346 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 176.2 MB. Free memory is still 157.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 25.36 ms. Allocated memory is still 176.2 MB. Free memory was 156.3 MB in the beginning and 154.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Preprocessor took 18.89 ms. Allocated memory is still 176.2 MB. Free memory was 154.9 MB in the beginning and 154.0 MB in the end (delta: 908.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 341.22 ms. Allocated memory is still 176.2 MB. Free memory was 153.9 MB in the beginning and 140.9 MB in the end (delta: 12.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 235993.57 ms. Allocated memory was 176.2 MB in the beginning and 385.9 MB in the end (delta: 209.7 MB). Free memory was 140.5 MB in the beginning and 210.0 MB in the end (delta: -69.5 MB). Peak memory consumption was 140.9 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...