/usr/bin/java -Xmx16000000000 -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-DelaySleep-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/two-queue.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-06 16:41:53,697 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-06 16:41:53,698 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-06 16:41:53,715 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-06 16:41:53,721 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-06 16:41:53,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-06 16:41:53,722 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-06 16:41:53,723 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-06 16:41:53,723 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-06 16:41:53,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-06 16:41:53,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-06 16:41:53,726 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-06 16:41:53,727 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-06 16:41:53,727 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-06 16:41:53,728 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-06 16:41:53,729 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-06 16:41:53,730 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-06 16:41:53,735 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-06 16:41:53,735 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-06 16:41:53,736 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-06 16:41:53,736 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-DelaySleep-NoLbe-Random42.epf [2021-06-06 16:41:53,751 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-06 16:41:53,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-06 16:41:53,751 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-06 16:41:53,751 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-06 16:41:53,752 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-06 16:41:53,752 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-06 16:41:53,752 INFO L138 SettingsManager]: * Use SBE=true [2021-06-06 16:41:53,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-06 16:41:53,753 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-06 16:41:53,753 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-06 16:41:53,753 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-06 16:41:53,753 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-06 16:41:53,753 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-06 16:41:53,753 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-06 16:41:53,753 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-06 16:41:53,753 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-06 16:41:53,753 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-06 16:41:53,754 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-06 16:41:53,754 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-06 16:41:53,754 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-06 16:41:53,754 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-06 16:41:53,754 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-06 16:41:53,754 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-06 16:41:53,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 16:41:53,754 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-06 16:41:53,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-06 16:41:53,755 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-06 16:41:53,755 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-06 16:41:53,755 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-06 16:41:53,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-06 16:41:53,755 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-06 16:41:53,755 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-06 16:41:53,755 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-06 16:41:53,755 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-06 16:41:53,755 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-06 16:41:53,755 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-06 16:41:53,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-06 16:41:54,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-06 16:41:54,008 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-06 16:41:54,009 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-06 16:41:54,010 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-06 16:41:54,010 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/two-queue.wvr.bpl [2021-06-06 16:41:54,010 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/two-queue.wvr.bpl' [2021-06-06 16:41:54,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-06 16:41:54,037 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-06 16:41:54,037 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-06 16:41:54,037 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-06 16:41:54,037 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-06 16:41:54,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 04:41:54" (1/1) ... [2021-06-06 16:41:54,052 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 04:41:54" (1/1) ... [2021-06-06 16:41:54,057 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-06 16:41:54,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-06 16:41:54,058 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-06 16:41:54,058 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-06 16:41:54,063 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 04:41:54" (1/1) ... [2021-06-06 16:41:54,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 04:41:54" (1/1) ... [2021-06-06 16:41:54,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 04:41:54" (1/1) ... [2021-06-06 16:41:54,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 04:41:54" (1/1) ... [2021-06-06 16:41:54,067 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 04:41:54" (1/1) ... [2021-06-06 16:41:54,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 04:41:54" (1/1) ... [2021-06-06 16:41:54,071 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 04:41:54" (1/1) ... [2021-06-06 16:41:54,071 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-06 16:41:54,074 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-06 16:41:54,074 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-06 16:41:54,074 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-06 16:41:54,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 04:41:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 16:41:54,122 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-06 16:41:54,122 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-06 16:41:54,122 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-06 16:41:54,122 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-06 16:41:54,122 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-06 16:41:54,122 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-06 16:41:54,123 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-06 16:41:54,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-06 16:41:54,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-06 16:41:54,124 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-06 16:41:54,354 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-06 16:41:54,354 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-06 16:41:54,356 INFO L202 PluginConnector]: Adding new model two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 04:41:54 BoogieIcfgContainer [2021-06-06 16:41:54,356 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-06 16:41:54,357 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-06 16:41:54,357 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-06 16:41:54,359 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-06 16:41:54,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 04:41:54" (1/2) ... [2021-06-06 16:41:54,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19aac4bf and model type two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.06 04:41:54, skipping insertion in model container [2021-06-06 16:41:54,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 04:41:54" (2/2) ... [2021-06-06 16:41:54,360 INFO L111 eAbstractionObserver]: Analyzing ICFG two-queue.wvr.bpl [2021-06-06 16:41:54,363 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-06 16:41:54,364 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-06 16:41:54,364 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-06 16:41:54,364 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-06 16:41:54,392 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-06 16:41:54,408 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-06 16:41:54,462 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-06 16:41:54,462 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-06 16:41:54,463 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-06 16:41:54,463 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-06 16:41:54,463 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-06 16:41:54,463 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-06 16:41:54,463 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-06 16:41:54,463 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-06 16:41:54,501 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 16:41:54,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 16:41:54,505 INFO L82 PathProgramCache]: Analyzing trace with hash 1902562680, now seen corresponding path program 1 times [2021-06-06 16:41:54,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 16:41:54,512 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039390319] [2021-06-06 16:41:54,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 16:41:54,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 16:41:54,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 16:41:54,618 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 16:41:54,618 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039390319] [2021-06-06 16:41:54,619 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039390319] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 16:41:54,619 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 16:41:54,620 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-06 16:41:54,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579300224] [2021-06-06 16:41:54,622 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-06 16:41:54,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 16:41:54,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-06 16:41:54,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-06 16:41:54,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 16:41:54,634 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 16:41:54,637 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 16:41:54,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 16:41:54,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 16:41:54,674 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-06 16:41:54,674 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 16:41:54,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 16:41:54,675 INFO L82 PathProgramCache]: Analyzing trace with hash -754110107, now seen corresponding path program 1 times [2021-06-06 16:41:54,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 16:41:54,675 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077722023] [2021-06-06 16:41:54,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 16:41:54,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 16:41:54,693 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 16:41:54,693 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 16:41:54,693 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077722023] [2021-06-06 16:41:54,694 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077722023] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 16:41:54,694 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 16:41:54,694 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-06 16:41:54,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334223882] [2021-06-06 16:41:54,695 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-06 16:41:54,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 16:41:54,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-06 16:41:54,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-06 16:41:54,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 16:41:54,696 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 16:41:54,697 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 16:41:54,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 16:41:54,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 16:41:54,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 16:41:54,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 16:41:54,759 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-06 16:41:54,759 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 16:41:54,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 16:41:54,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1493307770, now seen corresponding path program 1 times [2021-06-06 16:41:54,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 16:41:54,760 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493351857] [2021-06-06 16:41:54,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 16:41:54,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 16:41:54,906 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 16:41:54,906 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 16:41:54,906 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493351857] [2021-06-06 16:41:54,906 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493351857] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 16:41:54,906 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556928137] [2021-06-06 16:41:54,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 16:41:54,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 16:41:54,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 18 conjunts are in the unsatisfiable core [2021-06-06 16:41:54,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 16:41:55,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-06-06 16:41:55,098 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 16:41:55,101 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 16:41:55,104 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 16:41:55,104 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:11 [2021-06-06 16:41:55,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 12 [2021-06-06 16:41:55,162 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 16:41:55,165 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 16:41:55,166 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 16:41:55,166 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:9 [2021-06-06 16:41:55,238 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 16:41:55,238 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556928137] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 16:41:55,238 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 16:41:55,239 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-06-06 16:41:55,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344071082] [2021-06-06 16:41:55,239 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-06 16:41:55,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 16:41:55,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-06 16:41:55,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2021-06-06 16:41:55,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 16:41:55,240 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 16:41:55,240 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 18 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) [2021-06-06 16:41:55,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 16:41:55,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 16:41:55,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 16:41:55,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 16:41:55,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 16:41:55,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 16:41:55,815 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 16:41:55,815 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 16:41:55,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 16:41:55,816 INFO L82 PathProgramCache]: Analyzing trace with hash 864199783, now seen corresponding path program 2 times [2021-06-06 16:41:55,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 16:41:55,816 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057994045] [2021-06-06 16:41:55,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 16:41:55,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 16:41:55,870 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 16:41:55,870 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 16:41:55,871 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057994045] [2021-06-06 16:41:55,871 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057994045] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 16:41:55,871 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951676299] [2021-06-06 16:41:55,871 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 16:41:55,904 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 16:41:55,905 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 16:41:55,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-06 16:41:55,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 16:41:55,982 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-06 16:41:55,982 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951676299] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 16:41:55,982 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-06 16:41:55,983 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2021-06-06 16:41:55,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64826624] [2021-06-06 16:41:55,983 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-06 16:41:55,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 16:41:55,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-06 16:41:55,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-06 16:41:55,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 16:41:55,984 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 16:41:55,984 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 16:41:55,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 16:41:55,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 16:41:55,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 16:41:55,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 16:41:56,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 16:41:56,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 16:41:56,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 16:41:56,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 16:41:56,226 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 16:41:56,227 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 16:41:56,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 16:41:56,227 INFO L82 PathProgramCache]: Analyzing trace with hash -878562436, now seen corresponding path program 3 times [2021-06-06 16:41:56,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 16:41:56,227 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73433940] [2021-06-06 16:41:56,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 16:41:56,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 16:41:56,700 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-06 16:41:56,700 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 16:41:56,700 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73433940] [2021-06-06 16:41:56,700 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73433940] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 16:41:56,700 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999828758] [2021-06-06 16:41:56,700 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 16:41:56,745 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-06 16:41:56,745 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 16:41:56,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 33 conjunts are in the unsatisfiable core [2021-06-06 16:41:56,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 16:41:57,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 16:41:57,200 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 16:41:57,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 32 [2021-06-06 16:41:57,203 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 16:41:57,213 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 16:41:57,216 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 16:41:57,216 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:62, output treesize:31 [2021-06-06 16:41:57,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 16:41:57,294 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 16:41:57,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 14 [2021-06-06 16:41:57,296 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 16:41:57,301 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 16:41:57,302 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 16:41:57,302 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:41, output treesize:11 [2021-06-06 16:41:57,388 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 16:41:57,388 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999828758] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 16:41:57,388 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 16:41:57,389 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2021-06-06 16:41:57,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772017179] [2021-06-06 16:41:57,389 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-06 16:41:57,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 16:41:57,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-06 16:41:57,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=841, Unknown=0, NotChecked=0, Total=930 [2021-06-06 16:41:57,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 16:41:57,391 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 16:41:57,391 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 1.5161290322580645) internal successors, (47), 30 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 16:41:57,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 16:41:57,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 16:41:57,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 16:41:57,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 16:41:57,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 16:42:00,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 16:42:00,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 16:42:00,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 16:42:00,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 16:42:00,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-06-06 16:42:00,328 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 16:42:00,329 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 16:42:00,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 16:42:00,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1166411455, now seen corresponding path program 4 times [2021-06-06 16:42:00,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 16:42:00,330 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932396685] [2021-06-06 16:42:00,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 16:42:00,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 16:42:00,360 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-06-06 16:42:00,360 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 16:42:00,361 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932396685] [2021-06-06 16:42:00,361 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932396685] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 16:42:00,361 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570279416] [2021-06-06 16:42:00,361 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 16:42:00,396 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 16:42:00,396 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 16:42:00,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 6 conjunts are in the unsatisfiable core [2021-06-06 16:42:00,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 16:42:00,436 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-06-06 16:42:00,436 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570279416] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 16:42:00,436 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-06 16:42:00,436 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2021-06-06 16:42:00,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598808805] [2021-06-06 16:42:00,436 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-06 16:42:00,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 16:42:00,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-06 16:42:00,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-06 16:42:00,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 16:42:00,437 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 16:42:00,437 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 16:42:00,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 16:42:00,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 16:42:00,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 16:42:00,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 16:42:00,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-06-06 16:42:00,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 16:42:00,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 16:42:00,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 16:42:00,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 16:42:00,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 16:42:00,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-06-06 16:42:00,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 16:42:00,668 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-06-06 16:42:00,669 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 16:42:00,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 16:42:00,669 INFO L82 PathProgramCache]: Analyzing trace with hash -624541364, now seen corresponding path program 5 times [2021-06-06 16:42:00,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 16:42:00,670 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573103380] [2021-06-06 16:42:00,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 16:42:00,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 16:42:00,728 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 32 proven. 21 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-06-06 16:42:00,728 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 16:42:00,729 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573103380] [2021-06-06 16:42:00,729 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573103380] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 16:42:00,729 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1074905720] [2021-06-06 16:42:00,729 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 16:42:00,765 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-06-06 16:42:00,766 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 16:42:00,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-06 16:42:00,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 16:42:00,832 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 34 proven. 12 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-06-06 16:42:00,832 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1074905720] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 16:42:00,832 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 16:42:00,832 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 6 [2021-06-06 16:42:00,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626038357] [2021-06-06 16:42:00,833 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-06 16:42:00,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 16:42:00,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-06 16:42:00,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-06-06 16:42:00,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 16:42:00,833 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 16:42:00,833 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 16:42:00,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 16:42:00,834 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 16:42:00,834 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 16:42:00,834 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 16:42:00,834 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-06-06 16:42:00,834 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 16:42:00,834 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 16:42:00,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 16:42:00,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 16:42:00,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 16:42:00,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 16:42:00,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-06-06 16:42:00,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 16:42:00,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 16:42:01,076 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 16:42:01,077 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 16:42:01,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 16:42:01,077 INFO L82 PathProgramCache]: Analyzing trace with hash -36892158, now seen corresponding path program 6 times [2021-06-06 16:42:01,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 16:42:01,077 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116347670] [2021-06-06 16:42:01,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 16:42:01,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 16:42:01,412 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-06-06 16:42:01,412 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 16:42:01,412 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116347670] [2021-06-06 16:42:01,412 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116347670] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 16:42:01,412 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840209828] [2021-06-06 16:42:01,412 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 16:42:01,447 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-06-06 16:42:01,447 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 16:42:01,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 25 conjunts are in the unsatisfiable core [2021-06-06 16:42:01,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 16:42:01,719 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 16:42:01,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-06-06 16:42:01,721 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 16:42:01,729 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 16:42:01,731 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-06 16:42:01,731 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:32, output treesize:17 [2021-06-06 16:42:01,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-06-06 16:42:01,756 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 16:42:01,758 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 16:42:01,759 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 16:42:01,759 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:9 [2021-06-06 16:42:01,836 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-06-06 16:42:01,837 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [840209828] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 16:42:01,837 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 16:42:01,837 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 27 [2021-06-06 16:42:01,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509867021] [2021-06-06 16:42:01,837 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-06 16:42:01,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 16:42:01,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-06 16:42:01,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=666, Unknown=0, NotChecked=0, Total=756 [2021-06-06 16:42:01,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 16:42:01,838 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 16:42:01,838 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 1.9285714285714286) internal successors, (54), 27 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 16:42:01,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 16:42:01,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 16:42:01,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 16:42:01,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 16:42:01,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-06-06 16:42:01,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 16:42:01,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 16:42:01,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 16:42:03,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 16:42:03,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 16:42:03,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 16:42:03,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 16:42:03,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-06-06 16:42:03,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 16:42:03,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 16:42:03,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-06 16:42:03,256 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 16:42:03,262 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-06 16:42:03,263 INFO L202 PluginConnector]: Adding new model two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.06 04:42:03 BasicIcfg [2021-06-06 16:42:03,263 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-06 16:42:03,263 INFO L168 Benchmark]: Toolchain (without parser) took 9227.10 ms. Allocated memory was 394.3 MB in the beginning and 505.4 MB in the end (delta: 111.1 MB). Free memory was 374.2 MB in the beginning and 365.3 MB in the end (delta: 8.9 MB). Peak memory consumption was 121.9 MB. Max. memory is 16.0 GB. [2021-06-06 16:42:03,263 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 394.3 MB. Free memory was 375.4 MB in the beginning and 375.3 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-06 16:42:03,263 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.73 ms. Allocated memory is still 394.3 MB. Free memory was 374.2 MB in the beginning and 372.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-06 16:42:03,263 INFO L168 Benchmark]: Boogie Preprocessor took 14.07 ms. Allocated memory is still 394.3 MB. Free memory was 372.7 MB in the beginning and 371.8 MB in the end (delta: 945.2 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-06 16:42:03,264 INFO L168 Benchmark]: RCFGBuilder took 282.16 ms. Allocated memory is still 394.3 MB. Free memory was 371.7 MB in the beginning and 358.2 MB in the end (delta: 13.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-06-06 16:42:03,264 INFO L168 Benchmark]: TraceAbstraction took 8906.17 ms. Allocated memory was 394.3 MB in the beginning and 505.4 MB in the end (delta: 111.1 MB). Free memory was 357.7 MB in the beginning and 365.3 MB in the end (delta: -7.6 MB). Peak memory consumption was 105.1 MB. Max. memory is 16.0 GB. [2021-06-06 16:42:03,264 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 0.12 ms. Allocated memory is still 394.3 MB. Free memory was 375.4 MB in the beginning and 375.3 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 19.73 ms. Allocated memory is still 394.3 MB. Free memory was 374.2 MB in the beginning and 372.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 14.07 ms. Allocated memory is still 394.3 MB. Free memory was 372.7 MB in the beginning and 371.8 MB in the end (delta: 945.2 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 282.16 ms. Allocated memory is still 394.3 MB. Free memory was 371.7 MB in the beginning and 358.2 MB in the end (delta: 13.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 8906.17 ms. Allocated memory was 394.3 MB in the beginning and 505.4 MB in the end (delta: 111.1 MB). Free memory was 357.7 MB in the beginning and 365.3 MB in the end (delta: -7.6 MB). Peak memory consumption was 105.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 861, positive: 680, positive conditional: 680, positive unconditional: 0, negative: 181, negative conditional: 181, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 701, positive: 680, positive conditional: 680, positive unconditional: 0, negative: 21, negative conditional: 21, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 701, positive: 673, positive conditional: 0, positive unconditional: 673, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 65, positive: 63, positive conditional: 0, positive unconditional: 63, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 65, positive: 62, positive conditional: 0, positive unconditional: 62, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 22, positive: 4, positive conditional: 3, positive unconditional: 1, negative: 18, negative conditional: 16, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 78, positive: 8, positive conditional: 4, positive unconditional: 3, negative: 71, negative conditional: 34, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 701, positive: 610, positive conditional: 0, positive unconditional: 610, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 65, unknown conditional: 0, unknown unconditional: 65] , Statistics on independence cache: Total cache size (in pairs): 84, Positive cache size: 66, Positive conditional cache size: 3, Positive unconditional cache size: 63, Negative cache size: 18, Negative conditional cache size: 16, Negative unconditional cache size: 2, SemanticConditionEliminator.Independence Queries: [ total: 161, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 154, negative conditional: 76, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 161, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 154, negative conditional: 76, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 22, positive: 4, positive conditional: 3, positive unconditional: 1, negative: 18, negative conditional: 16, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 78, positive: 8, positive conditional: 4, positive unconditional: 3, negative: 71, negative conditional: 34, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 161, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 138, negative conditional: 60, negative unconditional: 78, unknown: 19, unknown conditional: 19, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 84, Positive cache size: 66, Positive conditional cache size: 3, Positive unconditional cache size: 63, Negative cache size: 18, Negative conditional cache size: 16, Negative unconditional cache size: 2, Eliminated conditions: 78, SemanticConditionEliminator.Independence Queries: [ total: 161, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 154, negative conditional: 76, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 161, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 154, negative conditional: 76, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 22, positive: 4, positive conditional: 3, positive unconditional: 1, negative: 18, negative conditional: 16, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 78, positive: 8, positive conditional: 4, positive unconditional: 3, negative: 71, negative conditional: 34, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 161, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 138, negative conditional: 60, negative unconditional: 78, unknown: 19, unknown conditional: 19, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 84, Positive cache size: 66, Positive conditional cache size: 3, Positive unconditional cache size: 63, Negative cache size: 18, Negative conditional cache size: 16, Negative unconditional cache size: 2, Eliminated conditions: 78, SemanticConditionEliminator.Independence Queries: [ total: 161, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 154, negative conditional: 76, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 161, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 154, negative conditional: 76, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 22, positive: 4, positive conditional: 3, positive unconditional: 1, negative: 18, negative conditional: 16, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 78, positive: 8, positive conditional: 4, positive unconditional: 3, negative: 71, negative conditional: 34, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 161, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 138, negative conditional: 60, negative unconditional: 78, unknown: 19, unknown conditional: 19, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 84, Positive cache size: 66, Positive conditional cache size: 3, Positive unconditional cache size: 63, Negative cache size: 18, Negative conditional cache size: 16, Negative unconditional cache size: 2, Eliminated conditions: 78, SemanticConditionEliminator.Independence Queries: [ total: 161, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 154, negative conditional: 76, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 161, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 154, negative conditional: 76, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 22, positive: 4, positive conditional: 3, positive unconditional: 1, negative: 18, negative conditional: 16, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 78, positive: 8, positive conditional: 4, positive unconditional: 3, negative: 71, negative conditional: 34, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 161, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 138, negative conditional: 60, negative unconditional: 78, unknown: 19, unknown conditional: 19, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 84, Positive cache size: 66, Positive conditional cache size: 3, Positive unconditional cache size: 63, Negative cache size: 18, Negative conditional cache size: 16, Negative unconditional cache size: 2, Eliminated conditions: 78, SemanticConditionEliminator.Independence Queries: [ total: 161, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 154, negative conditional: 76, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 161, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 154, negative conditional: 76, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 22, positive: 4, positive conditional: 3, positive unconditional: 1, negative: 18, negative conditional: 16, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 78, positive: 8, positive conditional: 4, positive unconditional: 3, negative: 71, negative conditional: 34, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 161, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 138, negative conditional: 60, negative unconditional: 78, unknown: 19, unknown conditional: 19, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 84, Positive cache size: 66, Positive conditional cache size: 3, Positive unconditional cache size: 63, Negative cache size: 18, Negative conditional cache size: 16, Negative unconditional cache size: 2, Eliminated conditions: 78, SemanticConditionEliminator.Independence Queries: [ total: 161, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 154, negative conditional: 76, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 161, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 154, negative conditional: 76, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 22, positive: 4, positive conditional: 3, positive unconditional: 1, negative: 18, negative conditional: 16, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 78, positive: 8, positive conditional: 4, positive unconditional: 3, negative: 71, negative conditional: 34, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 161, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 138, negative conditional: 60, negative unconditional: 78, unknown: 19, unknown conditional: 19, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 84, Positive cache size: 66, Positive conditional cache size: 3, Positive unconditional cache size: 63, Negative cache size: 18, Negative conditional cache size: 16, Negative unconditional cache size: 2, Eliminated conditions: 78, SemanticConditionEliminator.Independence Queries: [ total: 161, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 154, negative conditional: 76, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 161, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 154, negative conditional: 76, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 22, positive: 4, positive conditional: 3, positive unconditional: 1, negative: 18, negative conditional: 16, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 78, positive: 8, positive conditional: 4, positive unconditional: 3, negative: 71, negative conditional: 34, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 161, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 138, negative conditional: 60, negative unconditional: 78, unknown: 19, unknown conditional: 19, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 84, Positive cache size: 66, Positive conditional cache size: 3, Positive unconditional cache size: 63, Negative cache size: 18, Negative conditional cache size: 16, Negative unconditional cache size: 2, Eliminated conditions: 78, SemanticConditionEliminator.Independence Queries: [ total: 161, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 154, negative conditional: 76, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 161, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 154, negative conditional: 76, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 22, positive: 4, positive conditional: 3, positive unconditional: 1, negative: 18, negative conditional: 16, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 78, positive: 8, positive conditional: 4, positive unconditional: 3, negative: 71, negative conditional: 34, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 161, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 138, negative conditional: 60, negative unconditional: 78, unknown: 19, unknown conditional: 19, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 84, Positive cache size: 66, Positive conditional cache size: 3, Positive unconditional cache size: 63, Negative cache size: 18, Negative conditional cache size: 16, Negative unconditional cache size: 2, Eliminated conditions: 78 ], Maximal queried relation: 8, Independence queries for same thread: 160 - PositiveResult [Line: 62]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 36 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8830.9ms, OverallIterations: 8, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 15.4ms, PartialOrderReductionTime: 4500.7ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 107, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 33.3ms SsaConstructionTime, 193.9ms SatisfiabilityAnalysisTime, 2539.4ms InterpolantComputationTime, 382 NumberOfCodeBlocks, 382 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 368 ConstructedInterpolants, 13 QuantifiedInterpolants, 2695 SizeOfPredicates, 26 NumberOfNonLiveVariables, 504 ConjunctsInSsa, 95 ConjunctsInUnsatCore, 14 InterpolantComputations, 4 PerfectInterpolantSequences, 148/265 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...