/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-Symm.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy6.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-16 21:49:15,304 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-16 21:49:15,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-16 21:49:15,328 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-16 21:49:15,361 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-Symm.epf [2021-06-16 21:49:15,381 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-16 21:49:15,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-16 21:49:15,381 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-16 21:49:15,382 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-16 21:49:15,394 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-16 21:49:15,394 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-16 21:49:15,394 INFO L138 SettingsManager]: * Use SBE=true [2021-06-16 21:49:15,394 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-16 21:49:15,395 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-16 21:49:15,395 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-16 21:49:15,395 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-16 21:49:15,395 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-16 21:49:15,395 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-16 21:49:15,395 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-16 21:49:15,396 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-16 21:49:15,396 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-16 21:49:15,396 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-16 21:49:15,396 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-16 21:49:15,396 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-16 21:49:15,397 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-16 21:49:15,397 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-16 21:49:15,397 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-16 21:49:15,397 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-16 21:49:15,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 21:49:15,398 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-16 21:49:15,398 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-16 21:49:15,398 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-16 21:49:15,398 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-16 21:49:15,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-16 21:49:15,399 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-16 21:49:15,399 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-16 21:49:15,399 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-16 21:49:15,399 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-16 21:49:15,399 INFO L138 SettingsManager]: * Limit POR to symmetric independence in concurrent analysis=true [2021-06-16 21:49:15,399 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-16 21:49:15,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-16 21:49:15,693 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-16 21:49:15,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-16 21:49:15,696 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-16 21:49:15,698 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-16 21:49:15,698 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy6.wvr.bpl [2021-06-16 21:49:15,699 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy6.wvr.bpl' [2021-06-16 21:49:15,724 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-16 21:49:15,725 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-16 21:49:15,726 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-16 21:49:15,726 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-16 21:49:15,726 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-16 21:49:15,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:49:15" (1/1) ... [2021-06-16 21:49:15,743 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:49:15" (1/1) ... [2021-06-16 21:49:15,750 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-16 21:49:15,752 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-16 21:49:15,752 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-16 21:49:15,752 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-16 21:49:15,758 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:49:15" (1/1) ... [2021-06-16 21:49:15,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:49:15" (1/1) ... [2021-06-16 21:49:15,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:49:15" (1/1) ... [2021-06-16 21:49:15,759 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:49:15" (1/1) ... [2021-06-16 21:49:15,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:49:15" (1/1) ... [2021-06-16 21:49:15,762 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:49:15" (1/1) ... [2021-06-16 21:49:15,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:49:15" (1/1) ... [2021-06-16 21:49:15,764 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-16 21:49:15,764 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-16 21:49:15,765 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-16 21:49:15,765 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-16 21:49:15,766 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:49:15" (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 [2021-06-16 21:49:15,826 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-16 21:49:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-16 21:49:15,826 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-16 21:49:15,826 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-16 21:49:15,827 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-16 21:49:15,827 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-16 21:49:15,828 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-16 21:49:15,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-16 21:49:15,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-16 21:49:15,829 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-16 21:49:15,978 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-16 21:49:15,978 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-16 21:49:15,979 INFO L202 PluginConnector]: Adding new model easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 09:49:15 BoogieIcfgContainer [2021-06-16 21:49:15,980 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-16 21:49:15,981 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-16 21:49:15,981 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-16 21:49:15,983 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-16 21:49:15,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:49:15" (1/2) ... [2021-06-16 21:49:15,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@185ff1e5 and model type easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 09:49:15, skipping insertion in model container [2021-06-16 21:49:15,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 09:49:15" (2/2) ... [2021-06-16 21:49:15,986 INFO L111 eAbstractionObserver]: Analyzing ICFG easy6.wvr.bpl [2021-06-16 21:49:15,991 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-16 21:49:15,991 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-16 21:49:15,991 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-16 21:49:15,992 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-16 21:49:16,019 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-16 21:49:16,050 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 [2021-06-16 21:49:16,128 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-16 21:49:16,128 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-16 21:49:16,128 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-16 21:49:16,129 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-16 21:49:16,129 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-16 21:49:16,129 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-16 21:49:16,129 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-16 21:49:16,129 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-16 21:49:16,196 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:49:16,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:49:16,201 INFO L82 PathProgramCache]: Analyzing trace with hash -189607171, now seen corresponding path program 1 times [2021-06-16 21:49:16,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:49:16,213 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990578002] [2021-06-16 21:49:16,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:49:16,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:49:16,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:49:16,555 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:49:16,555 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990578002] [2021-06-16 21:49:16,556 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990578002] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 21:49:16,556 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 21:49:16,557 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-16 21:49:16,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321733819] [2021-06-16 21:49:16,561 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 21:49:16,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:49:16,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 21:49:16,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-16 21:49:16,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:49:16,574 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:49:16,576 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 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) [2021-06-16 21:49:16,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:49:16,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:49:16,785 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-16 21:49:16,786 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:49:16,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:49:16,786 INFO L82 PathProgramCache]: Analyzing trace with hash 2042034601, now seen corresponding path program 2 times [2021-06-16 21:49:16,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:49:16,787 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100361408] [2021-06-16 21:49:16,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:49:16,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:49:16,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:49:16,873 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:49:16,873 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100361408] [2021-06-16 21:49:16,873 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100361408] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 21:49:16,873 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 21:49:16,873 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 21:49:16,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435644737] [2021-06-16 21:49:16,875 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 21:49:16,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:49:16,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 21:49:16,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-06-16 21:49:16,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:49:16,876 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:49:16,877 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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) [2021-06-16 21:49:16,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:49:16,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:49:17,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:49:17,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 21:49:17,046 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-16 21:49:17,046 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:49:17,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:49:17,047 INFO L82 PathProgramCache]: Analyzing trace with hash -474201903, now seen corresponding path program 3 times [2021-06-16 21:49:17,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:49:17,048 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996782260] [2021-06-16 21:49:17,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:49:17,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:49:17,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:49:17,070 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:49:17,071 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996782260] [2021-06-16 21:49:17,071 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996782260] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 21:49:17,071 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 21:49:17,071 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-16 21:49:17,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259616598] [2021-06-16 21:49:17,072 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-16 21:49:17,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:49:17,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-16 21:49:17,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-16 21:49:17,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:49:17,076 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:49:17,076 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2021-06-16 21:49:17,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:49:17,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-16 21:49:17,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:49:17,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:49:17,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 21:49:17,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:49:17,127 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-16 21:49:17,127 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:49:17,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:49:17,128 INFO L82 PathProgramCache]: Analyzing trace with hash 677780211, now seen corresponding path program 4 times [2021-06-16 21:49:17,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:49:17,128 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040112496] [2021-06-16 21:49:17,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:49:17,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:49:17,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:49:17,268 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:49:17,268 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040112496] [2021-06-16 21:49:17,269 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040112496] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 21:49:17,269 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 21:49:17,269 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-16 21:49:17,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282072765] [2021-06-16 21:49:17,270 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-16 21:49:17,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:49:17,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-16 21:49:17,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-06-16 21:49:17,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:49:17,272 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:49:17,272 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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) [2021-06-16 21:49:17,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:49:17,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-16 21:49:17,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:49:17,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:49:17,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:49:17,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 21:49:17,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:49:17,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 21:49:17,439 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-16 21:49:17,442 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:49:17,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:49:17,443 INFO L82 PathProgramCache]: Analyzing trace with hash -1949704649, now seen corresponding path program 5 times [2021-06-16 21:49:17,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:49:17,444 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492678751] [2021-06-16 21:49:17,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:49:17,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:49:17,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:49:17,552 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:49:17,552 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492678751] [2021-06-16 21:49:17,552 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492678751] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 21:49:17,552 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 21:49:17,552 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-16 21:49:17,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429185013] [2021-06-16 21:49:17,553 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 21:49:17,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:49:17,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 21:49:17,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-16 21:49:17,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:49:17,554 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:49:17,555 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 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) [2021-06-16 21:49:17,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:49:17,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-16 21:49:17,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:49:17,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-16 21:49:17,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:49:17,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:49:17,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 21:49:17,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:49:17,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 21:49:17,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:49:17,653 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-16 21:49:17,653 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:49:17,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:49:17,653 INFO L82 PathProgramCache]: Analyzing trace with hash -2056806891, now seen corresponding path program 6 times [2021-06-16 21:49:17,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:49:17,654 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424791565] [2021-06-16 21:49:17,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:49:17,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:49:17,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:49:17,681 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:49:17,681 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424791565] [2021-06-16 21:49:17,681 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424791565] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 21:49:17,681 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 21:49:17,681 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-16 21:49:17,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292447767] [2021-06-16 21:49:17,682 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-16 21:49:17,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:49:17,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-16 21:49:17,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-16 21:49:17,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:49:17,683 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:49:17,683 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2021-06-16 21:49:17,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:49:17,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-16 21:49:17,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:49:17,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-16 21:49:17,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:49:17,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:49:17,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:49:17,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 21:49:17,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:49:17,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 21:49:17,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:49:17,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:49:17,737 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-16 21:49:17,737 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:49:17,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:49:17,738 INFO L82 PathProgramCache]: Analyzing trace with hash 11869881, now seen corresponding path program 7 times [2021-06-16 21:49:17,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:49:17,738 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693460631] [2021-06-16 21:49:17,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:49:17,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:49:17,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:49:17,792 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:49:17,792 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693460631] [2021-06-16 21:49:17,792 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693460631] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 21:49:17,792 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 21:49:17,793 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 21:49:17,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910264989] [2021-06-16 21:49:17,793 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 21:49:17,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:49:17,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 21:49:17,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-06-16 21:49:17,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:49:17,794 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:49:17,794 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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) [2021-06-16 21:49:17,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:49:17,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-16 21:49:17,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:49:17,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-16 21:49:17,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:49:17,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:49:17,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:49:17,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:49:17,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 21:49:17,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:49:17,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 21:49:17,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:49:17,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:49:17,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 21:49:17,919 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-16 21:49:17,931 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-16 21:49:17,934 INFO L202 PluginConnector]: Adding new model easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.06 09:49:17 BasicIcfg [2021-06-16 21:49:17,934 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-16 21:49:17,935 INFO L168 Benchmark]: Toolchain (without parser) took 2209.46 ms. Allocated memory was 127.9 MB in the beginning and 181.4 MB in the end (delta: 53.5 MB). Free memory was 107.6 MB in the beginning and 81.7 MB in the end (delta: 25.9 MB). Peak memory consumption was 80.5 MB. Max. memory is 8.0 GB. [2021-06-16 21:49:17,935 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 127.9 MB. Free memory is still 108.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-16 21:49:17,935 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.62 ms. Allocated memory is still 127.9 MB. Free memory was 107.6 MB in the beginning and 106.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-16 21:49:17,936 INFO L168 Benchmark]: Boogie Preprocessor took 11.67 ms. Allocated memory is still 127.9 MB. Free memory was 106.1 MB in the beginning and 105.2 MB in the end (delta: 858.9 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-16 21:49:17,937 INFO L168 Benchmark]: RCFGBuilder took 215.12 ms. Allocated memory is still 127.9 MB. Free memory was 105.2 MB in the beginning and 93.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-06-16 21:49:17,938 INFO L168 Benchmark]: TraceAbstraction took 1953.01 ms. Allocated memory was 127.9 MB in the beginning and 181.4 MB in the end (delta: 53.5 MB). Free memory was 93.3 MB in the beginning and 81.7 MB in the end (delta: 11.6 MB). Peak memory consumption was 65.8 MB. Max. memory is 8.0 GB. [2021-06-16 21:49:17,939 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 0.15 ms. Allocated memory is still 127.9 MB. Free memory is still 108.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 24.62 ms. Allocated memory is still 127.9 MB. Free memory was 107.6 MB in the beginning and 106.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 11.67 ms. Allocated memory is still 127.9 MB. Free memory was 106.1 MB in the beginning and 105.2 MB in the end (delta: 858.9 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 215.12 ms. Allocated memory is still 127.9 MB. Free memory was 105.2 MB in the beginning and 93.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1953.01 ms. Allocated memory was 127.9 MB in the beginning and 181.4 MB in the end (delta: 53.5 MB). Free memory was 93.3 MB in the beginning and 81.7 MB in the end (delta: 11.6 MB). Peak memory consumption was 65.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 956, positive: 866, positive conditional: 866, positive unconditional: 0, negative: 90, negative conditional: 90, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 956, positive: 866, positive conditional: 866, positive unconditional: 0, negative: 90, negative conditional: 90, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 956, positive: 866, positive conditional: 0, positive unconditional: 866, negative: 90, negative conditional: 0, negative unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 117, positive: 103, positive conditional: 0, positive unconditional: 103, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 117, positive: 103, positive conditional: 0, positive unconditional: 103, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 46, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 46, negative conditional: 32, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 183, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 183, negative conditional: 84, negative unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 956, positive: 763, positive conditional: 0, positive unconditional: 763, negative: 76, negative conditional: 0, negative unconditional: 76, unknown: 117, unknown conditional: 0, unknown unconditional: 117] , Statistics on independence cache: Total cache size (in pairs): 149, Positive cache size: 103, Positive conditional cache size: 0, Positive unconditional cache size: 103, Negative cache size: 46, Negative conditional cache size: 32, Negative unconditional cache size: 14, SemanticConditionEliminator.Independence Queries: [ total: 412, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 412, negative conditional: 113, negative unconditional: 299, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 412, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 412, negative conditional: 113, negative unconditional: 299, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 46, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 46, negative conditional: 32, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 183, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 183, negative conditional: 84, negative unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 412, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 380, negative conditional: 81, negative unconditional: 299, unknown: 32, unknown conditional: 32, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 149, Positive cache size: 103, Positive conditional cache size: 0, Positive unconditional cache size: 103, Negative cache size: 46, Negative conditional cache size: 32, Negative unconditional cache size: 14, Eliminated conditions: 299, SemanticConditionEliminator.Independence Queries: [ total: 412, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 412, negative conditional: 113, negative unconditional: 299, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 412, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 412, negative conditional: 113, negative unconditional: 299, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 46, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 46, negative conditional: 32, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 183, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 183, negative conditional: 84, negative unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 412, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 380, negative conditional: 81, negative unconditional: 299, unknown: 32, unknown conditional: 32, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 149, Positive cache size: 103, Positive conditional cache size: 0, Positive unconditional cache size: 103, Negative cache size: 46, Negative conditional cache size: 32, Negative unconditional cache size: 14, Eliminated conditions: 299, SemanticConditionEliminator.Independence Queries: [ total: 412, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 412, negative conditional: 113, negative unconditional: 299, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 412, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 412, negative conditional: 113, negative unconditional: 299, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 46, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 46, negative conditional: 32, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 183, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 183, negative conditional: 84, negative unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 412, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 380, negative conditional: 81, negative unconditional: 299, unknown: 32, unknown conditional: 32, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 149, Positive cache size: 103, Positive conditional cache size: 0, Positive unconditional cache size: 103, Negative cache size: 46, Negative conditional cache size: 32, Negative unconditional cache size: 14, Eliminated conditions: 299, SemanticConditionEliminator.Independence Queries: [ total: 412, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 412, negative conditional: 113, negative unconditional: 299, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 412, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 412, negative conditional: 113, negative unconditional: 299, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 46, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 46, negative conditional: 32, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 183, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 183, negative conditional: 84, negative unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 412, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 380, negative conditional: 81, negative unconditional: 299, unknown: 32, unknown conditional: 32, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 149, Positive cache size: 103, Positive conditional cache size: 0, Positive unconditional cache size: 103, Negative cache size: 46, Negative conditional cache size: 32, Negative unconditional cache size: 14, Eliminated conditions: 299, SemanticConditionEliminator.Independence Queries: [ total: 412, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 412, negative conditional: 113, negative unconditional: 299, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 412, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 412, negative conditional: 113, negative unconditional: 299, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 46, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 46, negative conditional: 32, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 183, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 183, negative conditional: 84, negative unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 412, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 380, negative conditional: 81, negative unconditional: 299, unknown: 32, unknown conditional: 32, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 149, Positive cache size: 103, Positive conditional cache size: 0, Positive unconditional cache size: 103, Negative cache size: 46, Negative conditional cache size: 32, Negative unconditional cache size: 14, Eliminated conditions: 299, SemanticConditionEliminator.Independence Queries: [ total: 412, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 412, negative conditional: 113, negative unconditional: 299, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 412, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 412, negative conditional: 113, negative unconditional: 299, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 46, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 46, negative conditional: 32, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 183, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 183, negative conditional: 84, negative unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 412, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 380, negative conditional: 81, negative unconditional: 299, unknown: 32, unknown conditional: 32, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 149, Positive cache size: 103, Positive conditional cache size: 0, Positive unconditional cache size: 103, Negative cache size: 46, Negative conditional cache size: 32, Negative unconditional cache size: 14, Eliminated conditions: 299, SemanticConditionEliminator.Independence Queries: [ total: 412, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 412, negative conditional: 113, negative unconditional: 299, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 412, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 412, negative conditional: 113, negative unconditional: 299, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 46, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 46, negative conditional: 32, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 183, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 183, negative conditional: 84, negative unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 412, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 380, negative conditional: 81, negative unconditional: 299, unknown: 32, unknown conditional: 32, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 149, Positive cache size: 103, Positive conditional cache size: 0, Positive unconditional cache size: 103, Negative cache size: 46, Negative conditional cache size: 32, Negative unconditional cache size: 14, Eliminated conditions: 299 ], Maximal queried relation: 7, Independence queries for same thread: 0 - PositiveResult [Line: 60]: 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, 60 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1866.2ms, OverallIterations: 7, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 19.3ms, PartialOrderReductionTime: 914.3ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 49, 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: 24.1ms SsaConstructionTime, 103.6ms SatisfiabilityAnalysisTime, 568.8ms InterpolantComputationTime, 217 NumberOfCodeBlocks, 217 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 210 ConstructedInterpolants, 0 QuantifiedInterpolants, 756 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 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...