/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 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-09 21:07:31,725 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-09 21:07:31,727 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-09 21:07:31,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-09 21:07:31,786 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 [2021-07-09 21:07:31,809 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-09 21:07:31,809 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-09 21:07:31,809 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-09 21:07:31,809 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-09 21:07:31,810 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-09 21:07:31,810 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-09 21:07:31,810 INFO L138 SettingsManager]: * Use SBE=true [2021-07-09 21:07:31,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-09 21:07:31,811 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-09 21:07:31,811 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-09 21:07:31,811 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-09 21:07:31,811 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-09 21:07:31,811 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-09 21:07:31,811 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-09 21:07:31,811 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-09 21:07:31,811 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-09 21:07:31,812 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-09 21:07:31,812 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-09 21:07:31,812 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-09 21:07:31,812 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-09 21:07:31,812 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-09 21:07:31,812 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-09 21:07:31,812 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-09 21:07:31,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 21:07:31,813 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-09 21:07:31,813 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-09 21:07:31,813 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-09 21:07:31,813 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-09 21:07:31,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-09 21:07:31,813 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-09 21:07:31,813 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-09 21:07:31,813 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-09 21:07:31,814 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-09 21:07:32,064 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-09 21:07:32,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-09 21:07:32,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-09 21:07:32,089 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-09 21:07:32,091 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-09 21:07:32,091 INFO L432 ainManager$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 [2021-07-09 21:07:32,092 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' [2021-07-09 21:07:32,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-09 21:07:32,112 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-09 21:07:32,112 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-09 21:07:32,113 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-09 21:07:32,113 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-09 21:07:32,121 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 09.07 09:07:32" (1/1) ... [2021-07-09 21:07:32,126 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 09.07 09:07:32" (1/1) ... [2021-07-09 21:07:32,131 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-09 21:07:32,132 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-09 21:07:32,132 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-09 21:07:32,132 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-09 21:07:32,137 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 09.07 09:07:32" (1/1) ... [2021-07-09 21:07:32,137 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 09.07 09:07:32" (1/1) ... [2021-07-09 21:07:32,138 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 09.07 09:07:32" (1/1) ... [2021-07-09 21:07:32,138 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 09.07 09:07:32" (1/1) ... [2021-07-09 21:07:32,140 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 09.07 09:07:32" (1/1) ... [2021-07-09 21:07:32,151 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 09.07 09:07:32" (1/1) ... [2021-07-09 21:07:32,152 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 09.07 09:07:32" (1/1) ... [2021-07-09 21:07:32,153 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-09 21:07:32,154 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-09 21:07:32,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-09 21:07:32,155 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-09 21:07:32,156 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 09:07:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 21:07:32,223 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-09 21:07:32,224 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-09 21:07:32,224 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-09 21:07:32,224 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-09 21:07:32,224 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-09 21:07:32,224 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-09 21:07:32,224 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-09 21:07:32,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-09 21:07:32,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-09 21:07:32,225 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-09 21:07:32,393 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-09 21:07:32,393 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-09 21:07:32,395 INFO L202 PluginConnector]: Adding new model inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 09:07:32 BoogieIcfgContainer [2021-07-09 21:07:32,395 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-09 21:07:32,396 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-09 21:07:32,396 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-09 21:07:32,418 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-09 21:07:32,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 09:07:32" (1/2) ... [2021-07-09 21:07:32,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3737fa95 and model type inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 09:07:32, skipping insertion in model container [2021-07-09 21:07:32,419 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 09.07 09:07:32" (2/2) ... [2021-07-09 21:07:32,420 INFO L111 eAbstractionObserver]: Analyzing ICFG inc-subseq-array.wvr.bpl [2021-07-09 21:07:32,424 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-09 21:07:32,424 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-09 21:07:32,424 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-09 21:07:32,424 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-09 21:07:32,460 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-07-09 21:07:32,479 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-09 21:07:32,518 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 21:07:32,518 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 21:07:32,518 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 21:07:32,518 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 21:07:32,518 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 21:07:32,519 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 21:07:32,519 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 21:07:32,519 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-09 21:07:32,525 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 28 transitions, 72 flow [2021-07-09 21:07:32,541 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 63 states, 62 states have (on average 2.0161290322580645) internal successors, (125), 62 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:07:32,549 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 21:07:32,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 21:07:32,561 INFO L82 PathProgramCache]: Analyzing trace with hash -879164253, now seen corresponding path program 1 times [2021-07-09 21:07:32,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 21:07:32,566 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401273351] [2021-07-09 21:07:32,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 21:07:32,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 21:07:32,776 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-07-09 21:07:32,776 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 21:07:32,777 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401273351] [2021-07-09 21:07:32,777 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401273351] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:07:32,777 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267569002] [2021-07-09 21:07:32,777 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 [2021-07-09 21:07:32,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 21:07:32,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-09 21:07:32,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 21:07:33,036 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-07-09 21:07:33,037 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [267569002] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:07:33,037 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 21:07:33,037 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-07-09 21:07:33,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578225521] [2021-07-09 21:07:33,041 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 21:07:33,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 21:07:33,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 21:07:33,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-07-09 21:07:33,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 21:07:33,054 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 21:07:33,055 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:07:33,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 21:07:33,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-09 21:07:33,309 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-07-09 21:07:33,309 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 21:07:33,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 21:07:33,310 INFO L82 PathProgramCache]: Analyzing trace with hash 2065829802, now seen corresponding path program 2 times [2021-07-09 21:07:33,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 21:07:33,310 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775530045] [2021-07-09 21:07:33,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 21:07:33,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 21:07:33,428 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 40 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-07-09 21:07:33,429 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 21:07:33,429 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775530045] [2021-07-09 21:07:33,429 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775530045] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:07:33,429 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993996068] [2021-07-09 21:07:33,429 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 [2021-07-09 21:07:33,475 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-09 21:07:33,476 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 21:07:33,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjunts are in the unsatisfiable core [2021-07-09 21:07:33,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 21:07:33,650 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 53 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-07-09 21:07:33,651 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993996068] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:07:33,651 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 21:07:33,651 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-07-09 21:07:33,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413884828] [2021-07-09 21:07:33,652 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 21:07:33,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 21:07:33,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 21:07:33,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-07-09 21:07:33,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 21:07:33,653 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 21:07:33,653 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:07:33,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-09 21:07:33,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 21:07:33,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-09 21:07:33,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-09 21:07:33,916 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 21:07:33,917 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 21:07:33,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 21:07:33,917 INFO L82 PathProgramCache]: Analyzing trace with hash 591285512, now seen corresponding path program 3 times [2021-07-09 21:07:33,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 21:07:33,918 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560760247] [2021-07-09 21:07:33,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 21:07:33,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 21:07:33,993 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 91 proven. 58 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-07-09 21:07:33,994 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 21:07:33,994 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560760247] [2021-07-09 21:07:33,994 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560760247] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:07:33,994 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [629107962] [2021-07-09 21:07:33,994 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 [2021-07-09 21:07:34,049 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-07-09 21:07:34,050 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 21:07:34,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 64 conjunts are in the unsatisfiable core [2021-07-09 21:07:34,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 21:07:35,246 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:07:35,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 83 treesize of output 175 [2021-07-09 21:07:36,004 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 245 [2021-07-09 21:07:36,166 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 257 [2021-07-09 21:07:36,308 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 257 [2021-07-09 21:07:36,322 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 21:07:37,168 WARN L205 SmtUtils]: Spent 844.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 118 [2021-07-09 21:07:37,168 INFO L628 ElimStorePlain]: treesize reduction 3127, result has 17.1 percent of original size [2021-07-09 21:07:37,279 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 21:07:37,279 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:91, output treesize:358 [2021-07-09 21:07:37,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:37,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:37,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:37,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:37,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:37,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:37,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:37,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:37,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:37,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:37,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:37,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,011 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:07:38,011 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 [2021-07-09 21:07:38,496 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2021-07-09 21:07:38,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,612 INFO L354 Elim1Store]: treesize reduction 78, result has 42.2 percent of original size [2021-07-09 21:07:38,613 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 [2021-07-09 21:07:38,630 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-09 21:07:38,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,747 INFO L354 Elim1Store]: treesize reduction 123, result has 17.4 percent of original size [2021-07-09 21:07:38,748 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 [2021-07-09 21:07:38,753 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-09 21:07:38,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:07:38,828 INFO L354 Elim1Store]: treesize reduction 107, result has 14.4 percent of original size [2021-07-09 21:07:38,829 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 [2021-07-09 21:07:38,846 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-09 21:07:38,900 INFO L628 ElimStorePlain]: treesize reduction 85, result has 43.3 percent of original size [2021-07-09 21:07:38,909 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-07-09 21:07:38,909 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:295, output treesize:47 [2021-07-09 21:07:39,023 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 38 proven. 114 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-07-09 21:07:39,023 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [629107962] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:07:39,023 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 21:07:39,024 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 33] total 39 [2021-07-09 21:07:39,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456997323] [2021-07-09 21:07:39,024 INFO L462 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-07-09 21:07:39,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 21:07:39,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-07-09 21:07:39,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=1389, Unknown=0, NotChecked=0, Total=1560 [2021-07-09 21:07:39,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 21:07:39,025 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 21:07:39,025 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 40 states, 40 states have (on average 3.1) internal successors, (124), 39 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:07:39,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-09 21:07:39,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-09 21:07:39,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 21:07:42,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-09 21:07:42,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-09 21:07:42,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-07-09 21:07:42,681 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 21:07:42,682 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 21:07:42,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 21:07:42,682 INFO L82 PathProgramCache]: Analyzing trace with hash -2126713137, now seen corresponding path program 1 times [2021-07-09 21:07:42,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 21:07:42,682 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496469029] [2021-07-09 21:07:42,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 21:07:42,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 21:07:42,823 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 230 proven. 116 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-07-09 21:07:42,824 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 21:07:42,824 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496469029] [2021-07-09 21:07:42,824 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496469029] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:07:42,824 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117434828] [2021-07-09 21:07:42,824 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 [2021-07-09 21:07:42,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 21:07:42,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 19 conjunts are in the unsatisfiable core [2021-07-09 21:07:42,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 21:07:43,042 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 260 proven. 86 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-07-09 21:07:43,043 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117434828] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:07:43,043 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 21:07:43,043 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2021-07-09 21:07:43,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973116969] [2021-07-09 21:07:43,047 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-09 21:07:43,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 21:07:43,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-09 21:07:43,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-07-09 21:07:43,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 21:07:43,047 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 21:07:43,048 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 7.230769230769231) internal successors, (94), 12 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:07:43,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-09 21:07:43,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-09 21:07:43,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2021-07-09 21:07:43,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 21:07:43,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-09 21:07:43,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-09 21:07:43,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-07-09 21:07:43,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 21:07:43,333 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable258 [2021-07-09 21:07:43,333 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 21:07:43,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 21:07:43,333 INFO L82 PathProgramCache]: Analyzing trace with hash -666495754, now seen corresponding path program 2 times [2021-07-09 21:07:43,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 21:07:43,333 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061960872] [2021-07-09 21:07:43,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 21:07:43,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 21:07:43,508 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 398 proven. 224 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-07-09 21:07:43,508 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 21:07:43,508 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061960872] [2021-07-09 21:07:43,508 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061960872] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:07:43,509 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587022424] [2021-07-09 21:07:43,509 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 [2021-07-09 21:07:43,573 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-09 21:07:43,573 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 21:07:43,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 25 conjunts are in the unsatisfiable core [2021-07-09 21:07:43,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 21:07:43,748 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 437 proven. 185 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-07-09 21:07:43,748 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587022424] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:07:43,748 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 21:07:43,748 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 15 [2021-07-09 21:07:43,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356867803] [2021-07-09 21:07:43,749 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-07-09 21:07:43,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 21:07:43,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-07-09 21:07:43,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=132, Unknown=0, NotChecked=0, Total=240 [2021-07-09 21:07:43,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 21:07:43,750 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 21:07:43,750 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 7.5625) internal successors, (121), 15 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:07:43,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-09 21:07:43,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-09 21:07:43,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2021-07-09 21:07:43,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-09 21:07:43,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 21:07:43,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-09 21:07:43,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-09 21:07:43,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-07-09 21:07:43,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 21:07:43,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-09 21:07:44,061 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 21:07:44,061 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 21:07:44,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 21:07:44,061 INFO L82 PathProgramCache]: Analyzing trace with hash 2106231037, now seen corresponding path program 3 times [2021-07-09 21:07:44,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 21:07:44,062 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473903707] [2021-07-09 21:07:44,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 21:07:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 21:07:44,296 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 611 proven. 368 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-07-09 21:07:44,296 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 21:07:44,296 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473903707] [2021-07-09 21:07:44,296 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473903707] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:07:44,297 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730006495] [2021-07-09 21:07:44,297 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 [2021-07-09 21:07:44,386 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2021-07-09 21:07:44,386 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 21:07:44,389 WARN L261 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 160 conjunts are in the unsatisfiable core [2021-07-09 21:07:44,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 21:08:14,614 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-07-09 21:08:46,398 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-07-09 21:09:55,480 WARN L227 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2021-07-09 21:09:55,481 WARN L348 FreeRefinementEngine]: Global settings require throwing the following exception [2021-07-09 21:09:55,681 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 21:09:55,682 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:597) 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:367) 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 [2021-07-09 21:09:55,686 INFO L168 Benchmark]: Toolchain (without parser) took 143574.82 ms. Allocated memory was 217.1 MB in the beginning and 467.7 MB in the end (delta: 250.6 MB). Free memory was 197.2 MB in the beginning and 278.3 MB in the end (delta: -81.1 MB). Peak memory consumption was 172.2 MB. Max. memory is 8.0 GB. [2021-07-09 21:09:55,686 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 217.1 MB. Free memory is still 198.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-09 21:09:55,686 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.51 ms. Allocated memory is still 217.1 MB. Free memory was 197.2 MB in the beginning and 195.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-09 21:09:55,687 INFO L168 Benchmark]: Boogie Preprocessor took 21.66 ms. Allocated memory is still 217.1 MB. Free memory was 195.7 MB in the beginning and 194.8 MB in the end (delta: 934.0 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-09 21:09:55,687 INFO L168 Benchmark]: RCFGBuilder took 240.81 ms. Allocated memory is still 217.1 MB. Free memory was 194.7 MB in the beginning and 181.8 MB in the end (delta: 12.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-07-09 21:09:55,687 INFO L168 Benchmark]: TraceAbstraction took 143289.81 ms. Allocated memory was 217.1 MB in the beginning and 467.7 MB in the end (delta: 250.6 MB). Free memory was 181.4 MB in the beginning and 278.3 MB in the end (delta: -97.0 MB). Peak memory consumption was 155.4 MB. Max. memory is 8.0 GB. [2021-07-09 21:09:55,687 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 217.1 MB. Free memory is still 198.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 18.51 ms. Allocated memory is still 217.1 MB. Free memory was 197.2 MB in the beginning and 195.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 21.66 ms. Allocated memory is still 217.1 MB. Free memory was 195.7 MB in the beginning and 194.8 MB in the end (delta: 934.0 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 240.81 ms. Allocated memory is still 217.1 MB. Free memory was 194.7 MB in the beginning and 181.8 MB in the end (delta: 12.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 143289.81 ms. Allocated memory was 217.1 MB in the beginning and 467.7 MB in the end (delta: 250.6 MB). Free memory was 181.4 MB in the beginning and 278.3 MB in the end (delta: -97.0 MB). Peak memory consumption was 155.4 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...