/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-NewStatesSleep-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product-array.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 07:05:33,513 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 07:05:33,514 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 07:05:33,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 07:05:33,560 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-NewStatesSleep-NoLbe-Lockstep.epf [2021-07-14 07:05:33,575 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 07:05:33,576 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 07:05:33,576 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 07:05:33,576 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 07:05:33,577 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 07:05:33,577 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 07:05:33,577 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 07:05:33,577 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 07:05:33,577 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 07:05:33,577 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 07:05:33,594 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 07:05:33,594 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 07:05:33,594 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 07:05:33,594 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 07:05:33,594 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 07:05:33,594 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 07:05:33,595 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 07:05:33,595 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 07:05:33,595 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 07:05:33,595 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 07:05:33,595 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 07:05:33,595 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 07:05:33,595 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 07:05:33,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 07:05:33,598 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 07:05:33,598 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 07:05:33,598 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 07:05:33,598 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 07:05:33,599 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-07-14 07:05:33,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 07:05:33,599 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 07:05:33,599 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 07:05:33,599 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 07:05:33,599 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-07-14 07:05:33,599 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 07:05:33,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 07:05:33,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 07:05:33,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 07:05:33,910 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 07:05:33,912 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 07:05:33,912 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product-array.wvr.bpl [2021-07-14 07:05:33,912 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product-array.wvr.bpl' [2021-07-14 07:05:33,938 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 07:05:33,940 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 07:05:33,940 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 07:05:33,940 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 07:05:33,941 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 07:05:33,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:05:33" (1/1) ... [2021-07-14 07:05:33,955 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:05:33" (1/1) ... [2021-07-14 07:05:33,960 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 07:05:33,961 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 07:05:33,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 07:05:33,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 07:05:33,967 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:05:33" (1/1) ... [2021-07-14 07:05:33,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:05:33" (1/1) ... [2021-07-14 07:05:33,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:05:33" (1/1) ... [2021-07-14 07:05:33,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:05:33" (1/1) ... [2021-07-14 07:05:33,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:05:33" (1/1) ... [2021-07-14 07:05:33,974 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:05:33" (1/1) ... [2021-07-14 07:05:33,974 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:05:33" (1/1) ... [2021-07-14 07:05:33,979 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 07:05:33,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 07:05:33,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 07:05:33,980 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 07:05:33,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:05:33" (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 [2021-07-14 07:05:34,043 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 07:05:34,043 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 07:05:34,043 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 07:05:34,043 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 07:05:34,043 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 07:05:34,043 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 07:05:34,044 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 07:05:34,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 07:05:34,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 07:05:34,044 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-14 07:05:34,044 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-14 07:05:34,044 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-14 07:05:34,045 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 07:05:34,237 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 07:05:34,237 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-14 07:05:34,239 INFO L202 PluginConnector]: Adding new model dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 07:05:34 BoogieIcfgContainer [2021-07-14 07:05:34,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 07:05:34,240 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 07:05:34,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 07:05:34,242 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 07:05:34,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:05:33" (1/2) ... [2021-07-14 07:05:34,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6461a77e and model type dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 07:05:34, skipping insertion in model container [2021-07-14 07:05:34,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 07:05:34" (2/2) ... [2021-07-14 07:05:34,243 INFO L111 eAbstractionObserver]: Analyzing ICFG dot-product-array.wvr.bpl [2021-07-14 07:05:34,247 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 07:05:34,247 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 07:05:34,247 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 07:05:34,247 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 07:05:34,273 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-07-14 07:05:34,287 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-14 07:05:34,325 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 07:05:34,325 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 07:05:34,325 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 07:05:34,325 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 07:05:34,325 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 07:05:34,325 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 07:05:34,325 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 07:05:34,325 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 07:05:34,390 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 07:05:34,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 07:05:34,394 INFO L82 PathProgramCache]: Analyzing trace with hash -226639509, now seen corresponding path program 1 times [2021-07-14 07:05:34,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 07:05:34,399 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810385850] [2021-07-14 07:05:34,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 07:05:34,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 07:05:34,546 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-14 07:05:34,547 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 07:05:34,547 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810385850] [2021-07-14 07:05:34,547 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810385850] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 07:05:34,547 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [422259065] [2021-07-14 07:05:34,548 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 [2021-07-14 07:05:34,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 07:05:34,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-14 07:05:34,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 07:05:34,709 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-14 07:05:34,710 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [422259065] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 07:05:34,710 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 07:05:34,710 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-07-14 07:05:34,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970256657] [2021-07-14 07:05:34,714 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-14 07:05:34,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 07:05:34,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-14 07:05:34,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-07-14 07:05:34,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:05:34,723 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 07:05:34,724 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 07:05:34,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:05:34,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:05:35,041 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-07-14 07:05:35,042 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 07:05:35,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 07:05:35,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1338618291, now seen corresponding path program 2 times [2021-07-14 07:05:35,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 07:05:35,043 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050022692] [2021-07-14 07:05:35,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 07:05:35,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 07:05:35,098 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 07:05:35,099 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 07:05:35,099 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050022692] [2021-07-14 07:05:35,099 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050022692] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 07:05:35,099 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [531586544] [2021-07-14 07:05:35,099 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 [2021-07-14 07:05:35,132 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 07:05:35,133 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 07:05:35,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-14 07:05:35,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 07:05:35,236 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 07:05:35,237 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [531586544] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 07:05:35,237 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 07:05:35,237 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-07-14 07:05:35,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113985760] [2021-07-14 07:05:35,237 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-14 07:05:35,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 07:05:35,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-14 07:05:35,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-07-14 07:05:35,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:05:35,238 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 07:05:35,239 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 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) [2021-07-14 07:05:35,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:05:35,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:05:35,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:05:35,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 07:05:35,533 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 07:05:35,534 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 07:05:35,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 07:05:35,534 INFO L82 PathProgramCache]: Analyzing trace with hash -503371089, now seen corresponding path program 3 times [2021-07-14 07:05:35,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 07:05:35,534 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705529130] [2021-07-14 07:05:35,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 07:05:35,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 07:05:35,842 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 07:05:35,842 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 07:05:35,842 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705529130] [2021-07-14 07:05:35,842 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705529130] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 07:05:35,843 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013501829] [2021-07-14 07:05:35,843 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 [2021-07-14 07:05:35,873 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-07-14 07:05:35,874 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 07:05:35,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 32 conjunts are in the unsatisfiable core [2021-07-14 07:05:35,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 07:05:41,866 WARN L205 SmtUtils]: Spent 983.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-07-14 07:05:41,932 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 07:05:41,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 61 treesize of output 89 [2021-07-14 07:05:42,568 INFO L550 ElimStorePlain]: Start of recursive call 2: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-14 07:05:42,599 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 07:05:42,624 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 07:05:42,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 49 treesize of output 77 [2021-07-14 07:05:43,071 INFO L550 ElimStorePlain]: Start of recursive call 3: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-14 07:05:43,133 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 07:05:43,181 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 07:05:43,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 85 [2021-07-14 07:05:43,342 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 3 xjuncts. [2021-07-14 07:05:43,841 WARN L205 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 128 [2021-07-14 07:05:43,843 INFO L628 ElimStorePlain]: treesize reduction 256, result has 75.5 percent of original size [2021-07-14 07:05:44,942 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 149 [2021-07-14 07:05:45,121 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 183 [2021-07-14 07:05:45,344 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 202 [2021-07-14 07:05:45,565 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 202 [2021-07-14 07:05:46,010 WARN L205 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 304 DAG size of output: 314 [2021-07-14 07:05:46,555 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 183 [2021-07-14 07:05:47,668 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 255 [2021-07-14 07:05:48,360 WARN L205 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 365 DAG size of output: 301 [2021-07-14 07:05:48,678 WARN L205 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 365 DAG size of output: 301 [2021-07-14 07:05:49,458 WARN L205 SmtUtils]: Spent 774.00 ms on a formula simplification. DAG size of input: 373 DAG size of output: 371 [2021-07-14 07:05:49,573 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 210 [2021-07-14 07:05:49,680 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 211 [2021-07-14 07:05:49,790 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 236 [2021-07-14 07:05:50,423 WARN L205 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 371 DAG size of output: 275 [2021-07-14 07:05:50,748 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 371 DAG size of output: 275 [2021-07-14 07:05:51,101 WARN L205 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 399 DAG size of output: 305 [2021-07-14 07:05:52,762 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 307 DAG size of output: 234 [2021-07-14 07:05:55,169 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 285 DAG size of output: 216 [2021-07-14 07:05:55,303 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 285 DAG size of output: 216 [2021-07-14 07:05:55,486 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 333 DAG size of output: 280 [2021-07-14 07:05:56,096 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 172 [2021-07-14 07:05:56,244 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 172 [2021-07-14 07:05:56,247 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 33 xjuncts. [2021-07-14 07:05:56,247 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:79, output treesize:5199 [2021-07-14 07:05:56,395 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 172 [2021-07-14 07:05:56,853 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 24 [2021-07-14 07:05:56,878 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 07:05:56,878 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013501829] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 07:05:56,878 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 07:05:56,878 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 23 [2021-07-14 07:05:56,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403062116] [2021-07-14 07:05:56,879 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-07-14 07:05:56,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 07:05:56,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-07-14 07:05:56,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=434, Unknown=5, NotChecked=0, Total=506 [2021-07-14 07:05:56,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:05:56,881 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 07:05:56,881 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.260869565217391) internal successors, (52), 23 states have internal predecessors, (52), 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) [2021-07-14 07:05:56,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:05:56,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 07:05:56,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:06:56,700 WARN L205 SmtUtils]: Spent 2.59 s on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2021-07-14 07:07:05,122 WARN L205 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2021-07-14 07:07:09,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:07:09,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 07:07:09,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 07:07:09,794 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 07:07:09,795 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 07:07:09,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 07:07:09,795 INFO L82 PathProgramCache]: Analyzing trace with hash -1293494481, now seen corresponding path program 4 times [2021-07-14 07:07:09,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 07:07:09,795 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428851863] [2021-07-14 07:07:09,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 07:07:09,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 07:07:10,137 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 07:07:10,137 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 07:07:10,137 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428851863] [2021-07-14 07:07:10,137 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428851863] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 07:07:10,137 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207248781] [2021-07-14 07:07:10,137 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 07:07:10,176 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 07:07:10,176 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 07:07:10,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 40 conjunts are in the unsatisfiable core [2021-07-14 07:07:10,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 07:07:10,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:07:10,528 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 07:07:10,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:07:10,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:07:10,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:07:10,531 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 07:07:10,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 65 [2021-07-14 07:07:10,534 INFO L550 ElimStorePlain]: Start of recursive call 2: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-14 07:07:10,542 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 07:07:10,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:07:10,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:07:10,545 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 07:07:10,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:07:10,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:07:10,548 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 07:07:10,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 47 [2021-07-14 07:07:10,551 INFO L550 ElimStorePlain]: Start of recursive call 3: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-14 07:07:10,558 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 07:07:10,589 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 07:07:10,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 87 [2021-07-14 07:07:10,852 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 07:07:11,268 WARN L205 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 85 [2021-07-14 07:07:11,269 INFO L628 ElimStorePlain]: treesize reduction 700, result has 47.5 percent of original size [2021-07-14 07:07:11,322 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-14 07:07:11,322 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:89, output treesize:3 [2021-07-14 07:07:11,343 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 07:07:11,345 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1207248781] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 07:07:11,345 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 07:07:11,345 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 26 [2021-07-14 07:07:11,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573471546] [2021-07-14 07:07:11,346 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-14 07:07:11,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 07:07:11,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-14 07:07:11,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=568, Unknown=0, NotChecked=0, Total=650 [2021-07-14 07:07:11,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:07:11,346 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 07:07:11,347 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 2.3076923076923075) internal successors, (60), 26 states have internal predecessors, (60), 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) [2021-07-14 07:07:11,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:07:11,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 07:07:11,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 07:07:11,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:07:13,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:07:13,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 07:07:13,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 07:07:13,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-07-14 07:07:13,671 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1005 [2021-07-14 07:07:13,671 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 07:07:13,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 07:07:13,672 INFO L82 PathProgramCache]: Analyzing trace with hash 1034592819, now seen corresponding path program 5 times [2021-07-14 07:07:13,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 07:07:13,672 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314227755] [2021-07-14 07:07:13,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 07:07:13,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 07:07:14,070 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 07:07:14,070 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 07:07:14,070 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314227755] [2021-07-14 07:07:14,070 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314227755] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 07:07:14,070 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690121957] [2021-07-14 07:07:14,070 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 07:07:14,107 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-07-14 07:07:14,107 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 07:07:14,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 46 conjunts are in the unsatisfiable core [2021-07-14 07:07:14,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 07:07:30,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:07:30,527 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 07:07:30,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:07:30,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:07:30,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:07:30,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:07:30,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:07:30,531 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 07:07:30,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:07:30,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:07:30,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 77 [2021-07-14 07:07:30,536 INFO L550 ElimStorePlain]: Start of recursive call 2: 5 dim-0 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-07-14 07:07:30,549 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 07:07:30,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:07:30,553 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 07:07:30,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:07:30,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:07:30,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:07:30,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:07:30,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:07:30,560 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 07:07:30,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:07:30,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:07:30,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 57 [2021-07-14 07:07:30,564 INFO L550 ElimStorePlain]: Start of recursive call 3: 5 dim-0 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-07-14 07:07:30,576 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 07:07:30,625 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 07:07:30,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 57 treesize of output 137 [2021-07-14 07:07:31,111 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 152 [2021-07-14 07:07:31,452 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 173 [2021-07-14 07:07:31,896 WARN L205 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 215 [2021-07-14 07:07:32,986 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 298 DAG size of output: 260 [2021-07-14 07:07:34,066 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 298 DAG size of output: 260 [2021-07-14 07:07:38,180 WARN L205 SmtUtils]: Spent 4.11 s on a formula simplification. DAG size of input: 309 DAG size of output: 310 [2021-07-14 07:07:38,688 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 126 [2021-07-14 07:07:40,736 WARN L205 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 300 DAG size of output: 288 [2021-07-14 07:07:41,897 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 304 DAG size of output: 266 [2021-07-14 07:07:42,971 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 261 DAG size of output: 261 [2021-07-14 07:07:44,196 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 265 DAG size of output: 265 [2021-07-14 07:07:45,344 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 264 DAG size of output: 264 [2021-07-14 07:07:49,184 WARN L205 SmtUtils]: Spent 3.84 s on a formula simplification. DAG size of input: 266 DAG size of output: 305 [2021-07-14 07:07:49,890 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 126 [2021-07-14 07:07:51,791 WARN L205 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 300 DAG size of output: 288 [2021-07-14 07:07:52,877 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 261 DAG size of output: 261 [2021-07-14 07:07:53,956 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 261 DAG size of output: 261 [2021-07-14 07:07:55,187 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 265 DAG size of output: 265 [2021-07-14 07:07:55,190 INFO L550 ElimStorePlain]: Start of recursive call 4: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-14 07:07:56,510 WARN L205 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 276 DAG size of output: 248 [2021-07-14 07:07:56,510 INFO L628 ElimStorePlain]: treesize reduction 8928, result has 66.2 percent of original size [2021-07-14 07:07:57,457 WARN L205 SmtUtils]: Spent 946.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 249 [2021-07-14 07:07:58,057 WARN L205 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 228 [2021-07-14 07:07:58,457 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 189 [2021-07-14 07:07:59,240 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 189 [2021-07-14 07:07:59,818 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-14 07:07:59,818 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 7 variables, input treesize:118, output treesize:3 [2021-07-14 07:07:59,839 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 07:07:59,840 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690121957] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 07:07:59,840 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 07:07:59,840 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 31 [2021-07-14 07:07:59,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927921926] [2021-07-14 07:07:59,840 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-07-14 07:07:59,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 07:07:59,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-07-14 07:07:59,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=832, Unknown=9, NotChecked=0, Total=930 [2021-07-14 07:07:59,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:07:59,841 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 07:07:59,841 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 2.193548387096774) internal successors, (68), 31 states have internal predecessors, (68), 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) [2021-07-14 07:07:59,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:07:59,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 07:07:59,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 07:07:59,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-07-14 07:07:59,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:10:22,964 WARN L227 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2021-07-14 07:10:23,165 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1027,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 07:10:23,166 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:899) 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.getOrConstructPredicateForConjunction(PredicateUnifier.java:388) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:281) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:78) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:200) at de.uni_freiburg.informatik.ultimate.automata.partialorder.SleepSetNewStateReduction.search(SleepSetNewStateReduction.java:159) at de.uni_freiburg.informatik.ultimate.automata.partialorder.SleepSetNewStateReduction.(SleepSetNewStateReduction.java:111) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderReductionFacade.apply(PartialOrderReductionFacade.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isAbstractionEmpty(PartialOrderCegarLoop.java:193) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:509) 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$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:238) ... 44 more [2021-07-14 07:10:23,169 INFO L168 Benchmark]: Toolchain (without parser) took 289229.41 ms. Allocated memory was 225.4 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 206.4 MB in the beginning and 825.2 MB in the end (delta: -618.8 MB). Peak memory consumption was 664.2 MB. Max. memory is 8.0 GB. [2021-07-14 07:10:23,169 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 225.4 MB. Free memory is still 207.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-14 07:10:23,169 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.69 ms. Allocated memory is still 225.4 MB. Free memory was 206.3 MB in the beginning and 204.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-07-14 07:10:23,169 INFO L168 Benchmark]: Boogie Preprocessor took 17.60 ms. Allocated memory is still 225.4 MB. Free memory was 204.9 MB in the beginning and 203.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-14 07:10:23,169 INFO L168 Benchmark]: RCFGBuilder took 259.08 ms. Allocated memory is still 225.4 MB. Free memory was 203.8 MB in the beginning and 190.3 MB in the end (delta: 13.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-07-14 07:10:23,169 INFO L168 Benchmark]: TraceAbstraction took 288928.64 ms. Allocated memory was 225.4 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 189.8 MB in the beginning and 825.2 MB in the end (delta: -635.4 MB). Peak memory consumption was 647.5 MB. Max. memory is 8.0 GB. [2021-07-14 07:10:23,169 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 225.4 MB. Free memory is still 207.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 19.69 ms. Allocated memory is still 225.4 MB. Free memory was 206.3 MB in the beginning and 204.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Preprocessor took 17.60 ms. Allocated memory is still 225.4 MB. Free memory was 204.9 MB in the beginning and 203.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 259.08 ms. Allocated memory is still 225.4 MB. Free memory was 203.8 MB in the beginning and 190.3 MB in the end (delta: 13.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 288928.64 ms. Allocated memory was 225.4 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 189.8 MB in the beginning and 825.2 MB in the end (delta: -635.4 MB). Peak memory consumption was 647.5 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...