/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-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/threaded-sum-3.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-17 13:36:24,812 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-17 13:36:24,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-17 13:36:24,839 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-17 13:36:24,839 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-17 13:36:24,840 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-17 13:36:24,841 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-17 13:36:24,843 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-17 13:36:24,845 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-17 13:36:24,845 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-17 13:36:24,846 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-17 13:36:24,847 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-17 13:36:24,847 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-17 13:36:24,848 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-17 13:36:24,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-17 13:36:24,850 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-17 13:36:24,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-17 13:36:24,852 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-17 13:36:24,853 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-17 13:36:24,855 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-17 13:36:24,856 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-17 13:36:24,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-17 13:36:24,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-17 13:36:24,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-17 13:36:24,883 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-17 13:36:24,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-17 13:36:24,896 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-17 13:36:24,896 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-17 13:36:24,902 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-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf [2021-06-17 13:36:24,942 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-17 13:36:24,942 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-17 13:36:24,942 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-17 13:36:24,942 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-17 13:36:24,943 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-17 13:36:24,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-17 13:36:24,944 INFO L138 SettingsManager]: * Use SBE=true [2021-06-17 13:36:24,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-17 13:36:24,944 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-17 13:36:24,944 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-17 13:36:24,944 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-17 13:36:24,945 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-17 13:36:24,945 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-17 13:36:24,945 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-17 13:36:24,959 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-17 13:36:24,959 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-17 13:36:24,959 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-17 13:36:24,959 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-17 13:36:24,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-17 13:36:24,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-17 13:36:24,960 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-17 13:36:24,960 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-17 13:36:24,960 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-17 13:36:24,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-17 13:36:24,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-17 13:36:24,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-17 13:36:24,961 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-17 13:36:24,961 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-17 13:36:24,961 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-17 13:36:24,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-17 13:36:24,961 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-17 13:36:24,962 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-17 13:36:24,962 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-17 13:36:24,962 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-06-17 13:36:24,962 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-17 13:36:24,962 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-17 13:36:25,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-17 13:36:25,285 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-17 13:36:25,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-17 13:36:25,289 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-17 13:36:25,290 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-17 13:36:25,290 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/threaded-sum-3.wvr.bpl [2021-06-17 13:36:25,290 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/threaded-sum-3.wvr.bpl' [2021-06-17 13:36:25,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-17 13:36:25,326 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-17 13:36:25,326 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-17 13:36:25,327 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-17 13:36:25,327 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-17 13:36:25,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:36:25" (1/1) ... [2021-06-17 13:36:25,350 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:36:25" (1/1) ... [2021-06-17 13:36:25,356 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-17 13:36:25,358 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-17 13:36:25,358 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-17 13:36:25,358 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-17 13:36:25,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:36:25" (1/1) ... [2021-06-17 13:36:25,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:36:25" (1/1) ... [2021-06-17 13:36:25,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:36:25" (1/1) ... [2021-06-17 13:36:25,366 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:36:25" (1/1) ... [2021-06-17 13:36:25,368 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:36:25" (1/1) ... [2021-06-17 13:36:25,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:36:25" (1/1) ... [2021-06-17 13:36:25,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:36:25" (1/1) ... [2021-06-17 13:36:25,375 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-17 13:36:25,377 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-17 13:36:25,377 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-17 13:36:25,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-17 13:36:25,379 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:36:25" (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 [2021-06-17 13:36:25,439 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-17 13:36:25,439 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-17 13:36:25,439 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-17 13:36:25,439 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-17 13:36:25,439 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-17 13:36:25,439 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-17 13:36:25,440 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-17 13:36:25,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-17 13:36:25,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-17 13:36:25,440 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-17 13:36:25,440 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-17 13:36:25,440 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-17 13:36:25,441 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-17 13:36:25,737 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-17 13:36:25,737 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-17 13:36:25,739 INFO L202 PluginConnector]: Adding new model threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 01:36:25 BoogieIcfgContainer [2021-06-17 13:36:25,739 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-17 13:36:25,741 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-17 13:36:25,741 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-17 13:36:25,743 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-17 13:36:25,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:36:25" (1/2) ... [2021-06-17 13:36:25,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f78cb6 and model type threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.06 01:36:25, skipping insertion in model container [2021-06-17 13:36:25,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 01:36:25" (2/2) ... [2021-06-17 13:36:25,745 INFO L111 eAbstractionObserver]: Analyzing ICFG threaded-sum-3.wvr.bpl [2021-06-17 13:36:25,770 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-17 13:36:25,770 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-17 13:36:25,770 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-17 13:36:25,771 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-17 13:36:25,825 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-17 13:36:25,843 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-17 13:36:25,895 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-17 13:36:25,896 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-17 13:36:25,896 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-17 13:36:25,896 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-17 13:36:25,896 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-17 13:36:25,896 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-17 13:36:25,896 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-17 13:36:25,896 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-17 13:36:26,079 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:36:26,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:36:26,087 INFO L82 PathProgramCache]: Analyzing trace with hash 69058008, now seen corresponding path program 1 times [2021-06-17 13:36:26,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:36:26,095 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576554695] [2021-06-17 13:36:26,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:36:26,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:36:26,249 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:36:26,250 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:36:26,250 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576554695] [2021-06-17 13:36:26,250 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576554695] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-17 13:36:26,250 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-17 13:36:26,251 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-17 13:36:26,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452733310] [2021-06-17 13:36:26,254 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-17 13:36:26,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:36:26,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-17 13:36:26,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-17 13:36:26,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:36:26,272 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:36:26,276 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2021-06-17 13:36:26,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:36:26,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:36:26,409 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-17 13:36:26,409 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:36:26,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:36:26,410 INFO L82 PathProgramCache]: Analyzing trace with hash 737657595, now seen corresponding path program 1 times [2021-06-17 13:36:26,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:36:26,410 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392778979] [2021-06-17 13:36:26,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:36:26,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:36:26,651 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:36:26,651 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:36:26,651 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392778979] [2021-06-17 13:36:26,652 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392778979] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:36:26,652 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264591458] [2021-06-17 13:36:26,652 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 [2021-06-17 13:36:26,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:36:26,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-17 13:36:26,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:36:26,950 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:36:26,951 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264591458] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:36:26,952 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:36:26,952 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2021-06-17 13:36:26,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354444616] [2021-06-17 13:36:26,954 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-17 13:36:26,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:36:26,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-17 13:36:26,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-06-17 13:36:26,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:36:26,959 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:36:26,959 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 13:36:26,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:36:26,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:36:27,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:36:27,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:36:27,425 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:36:27,425 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:36:27,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:36:27,426 INFO L82 PathProgramCache]: Analyzing trace with hash -88824939, now seen corresponding path program 2 times [2021-06-17 13:36:27,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:36:27,426 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759079127] [2021-06-17 13:36:27,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:36:27,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:36:28,589 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:36:28,590 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:36:28,590 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759079127] [2021-06-17 13:36:28,590 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759079127] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:36:28,590 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [968327825] [2021-06-17 13:36:28,590 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 [2021-06-17 13:36:28,635 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 13:36:28,636 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 13:36:28,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 25 conjunts are in the unsatisfiable core [2021-06-17 13:36:28,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:36:29,733 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-06-17 13:36:30,248 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:36:30,248 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [968327825] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:36:30,249 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:36:30,249 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 36 [2021-06-17 13:36:30,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469191058] [2021-06-17 13:36:30,250 INFO L462 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-06-17 13:36:30,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:36:30,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-06-17 13:36:30,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=1119, Unknown=0, NotChecked=0, Total=1332 [2021-06-17 13:36:30,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:36:30,254 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:36:30,254 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 2.054054054054054) internal successors, (76), 36 states have internal predecessors, (76), 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) [2021-06-17 13:36:30,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:36:30,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:36:30,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:36:31,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:36:31,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:36:31,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:36:31,370 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:36:31,370 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:36:31,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:36:31,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1648520077, now seen corresponding path program 3 times [2021-06-17 13:36:31,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:36:31,371 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178793568] [2021-06-17 13:36:31,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:36:31,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:36:32,664 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:36:32,664 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:36:32,664 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178793568] [2021-06-17 13:36:32,664 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178793568] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:36:32,664 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498623134] [2021-06-17 13:36:32,665 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 [2021-06-17 13:36:32,703 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-06-17 13:36:32,703 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 13:36:32,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 28 conjunts are in the unsatisfiable core [2021-06-17 13:36:32,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:36:33,615 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 52 [2021-06-17 13:36:33,809 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 47 [2021-06-17 13:36:34,037 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 47 [2021-06-17 13:36:34,306 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-06-17 13:36:34,559 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2021-06-17 13:36:34,873 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-17 13:36:35,061 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-06-17 13:36:35,444 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 40 [2021-06-17 13:36:35,521 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:36:35,522 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [498623134] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:36:35,522 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:36:35,522 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 42 [2021-06-17 13:36:35,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875634858] [2021-06-17 13:36:35,523 INFO L462 AbstractCegarLoop]: Interpolant automaton has 43 states [2021-06-17 13:36:35,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:36:35,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-06-17 13:36:35,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=312, Invalid=1494, Unknown=0, NotChecked=0, Total=1806 [2021-06-17 13:36:35,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:36:35,524 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:36:35,524 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 43 states, 43 states have (on average 2.046511627906977) internal successors, (88), 42 states have internal predecessors, (88), 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) [2021-06-17 13:36:35,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:36:35,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:36:35,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:36:35,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:36:36,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:36:36,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:36:36,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:36:36,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:36:37,097 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-06-17 13:36:37,097 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:36:37,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:36:37,098 INFO L82 PathProgramCache]: Analyzing trace with hash -901774383, now seen corresponding path program 4 times [2021-06-17 13:36:37,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:36:37,098 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936944975] [2021-06-17 13:36:37,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:36:37,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:36:38,851 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 4 proven. 95 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:36:38,851 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:36:38,851 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936944975] [2021-06-17 13:36:38,851 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936944975] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:36:38,851 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106144220] [2021-06-17 13:36:38,851 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 [2021-06-17 13:36:38,898 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-17 13:36:38,898 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 13:36:38,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 30 conjunts are in the unsatisfiable core [2021-06-17 13:36:38,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:36:39,906 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-06-17 13:36:40,128 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 59 [2021-06-17 13:36:40,379 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 61 [2021-06-17 13:36:40,675 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-06-17 13:36:40,993 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2021-06-17 13:36:41,390 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2021-06-17 13:36:41,792 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 78 [2021-06-17 13:36:42,298 WARN L205 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 93 [2021-06-17 13:36:42,562 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-06-17 13:36:42,819 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-06-17 13:36:43,268 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2021-06-17 13:36:43,385 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:36:43,385 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2106144220] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:36:43,385 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:36:43,385 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 48 [2021-06-17 13:36:43,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16587278] [2021-06-17 13:36:43,386 INFO L462 AbstractCegarLoop]: Interpolant automaton has 49 states [2021-06-17 13:36:43,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:36:43,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-06-17 13:36:43,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=379, Invalid=1973, Unknown=0, NotChecked=0, Total=2352 [2021-06-17 13:36:43,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:36:43,388 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:36:43,388 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 49 states, 49 states have (on average 2.0408163265306123) internal successors, (100), 48 states have internal predecessors, (100), 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) [2021-06-17 13:36:43,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:36:43,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:36:43,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:36:43,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:36:43,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:36:45,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:36:45,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:36:45,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:36:45,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:36:45,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:36:45,372 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-06-17 13:36:45,373 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:36:45,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:36:45,373 INFO L82 PathProgramCache]: Analyzing trace with hash -1480396113, now seen corresponding path program 5 times [2021-06-17 13:36:45,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:36:45,374 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49039540] [2021-06-17 13:36:45,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:36:45,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:36:46,295 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 57 [2021-06-17 13:36:46,828 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 78 [2021-06-17 13:36:47,066 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 60 [2021-06-17 13:36:47,524 WARN L205 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 69 [2021-06-17 13:36:47,733 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 55 [2021-06-17 13:36:47,934 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 64 [2021-06-17 13:36:48,149 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 62 [2021-06-17 13:36:48,725 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 85 [2021-06-17 13:36:48,919 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 34 [2021-06-17 13:36:49,084 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 71 [2021-06-17 13:36:49,291 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 32 [2021-06-17 13:36:49,457 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 68 [2021-06-17 13:36:49,639 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 33 [2021-06-17 13:36:49,977 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 3 proven. 143 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:36:49,977 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:36:49,977 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49039540] [2021-06-17 13:36:49,978 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49039540] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:36:49,978 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183189839] [2021-06-17 13:36:49,978 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 [2021-06-17 13:36:50,037 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2021-06-17 13:36:50,037 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 13:36:50,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 36 conjunts are in the unsatisfiable core [2021-06-17 13:36:50,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:36:51,347 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 67 [2021-06-17 13:36:51,581 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 60 [2021-06-17 13:36:51,845 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 62 [2021-06-17 13:36:52,135 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-06-17 13:36:52,453 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-17 13:36:52,873 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 85 [2021-06-17 13:36:53,360 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 95 [2021-06-17 13:36:53,939 WARN L205 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 106 [2021-06-17 13:36:54,500 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-06-17 13:36:55,331 WARN L205 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 128 [2021-06-17 13:36:55,764 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-06-17 13:36:56,210 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2021-06-17 13:36:56,669 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-06-17 13:36:56,830 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:36:56,830 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1183189839] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:36:56,830 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:36:56,830 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 54 [2021-06-17 13:36:56,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537962919] [2021-06-17 13:36:56,831 INFO L462 AbstractCegarLoop]: Interpolant automaton has 55 states [2021-06-17 13:36:56,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:36:56,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-06-17 13:36:56,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=409, Invalid=2561, Unknown=0, NotChecked=0, Total=2970 [2021-06-17 13:36:56,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:36:56,833 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:36:56,833 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 55 states, 55 states have (on average 2.036363636363636) internal successors, (112), 54 states have internal predecessors, (112), 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) [2021-06-17 13:36:56,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:36:56,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:36:56,834 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:36:56,834 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:36:56,834 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:36:56,834 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:36:58,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:36:58,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:36:58,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:36:58,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:36:58,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:36:58,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-17 13:36:58,612 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:36:58,613 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:36:58,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:36:58,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1307988911, now seen corresponding path program 6 times [2021-06-17 13:36:58,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:36:58,613 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695322539] [2021-06-17 13:36:58,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:36:58,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:36:59,628 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 49 [2021-06-17 13:36:59,857 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 49 [2021-06-17 13:37:00,056 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 43 [2021-06-17 13:37:00,255 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 48 [2021-06-17 13:37:00,519 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 51 [2021-06-17 13:37:00,731 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 51 [2021-06-17 13:37:00,965 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 57 [2021-06-17 13:37:01,297 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 54 [2021-06-17 13:37:01,584 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 57 [2021-06-17 13:37:02,268 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 31 [2021-06-17 13:37:02,507 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 32 [2021-06-17 13:37:02,641 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2021-06-17 13:37:02,832 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 30 [2021-06-17 13:37:03,177 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 18 proven. 164 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:37:03,177 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:37:03,177 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695322539] [2021-06-17 13:37:03,178 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695322539] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:37:03,178 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24681945] [2021-06-17 13:37:03,178 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 [2021-06-17 13:37:03,236 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2021-06-17 13:37:03,236 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 13:37:03,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 36 conjunts are in the unsatisfiable core [2021-06-17 13:37:03,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:37:04,549 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 64 [2021-06-17 13:37:04,744 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 63 [2021-06-17 13:37:04,972 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 63 [2021-06-17 13:37:05,274 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2021-06-17 13:37:05,621 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 80 [2021-06-17 13:37:06,098 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 87 [2021-06-17 13:37:06,464 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 96 [2021-06-17 13:37:07,041 WARN L205 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 106 [2021-06-17 13:37:07,746 WARN L205 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 117 [2021-06-17 13:37:08,067 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-06-17 13:37:08,465 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-06-17 13:37:08,797 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2021-06-17 13:37:09,201 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-06-17 13:37:09,641 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-06-17 13:37:09,779 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:37:09,779 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [24681945] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:37:09,779 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:37:09,780 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 58 [2021-06-17 13:37:09,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347748115] [2021-06-17 13:37:09,785 INFO L462 AbstractCegarLoop]: Interpolant automaton has 59 states [2021-06-17 13:37:09,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:37:09,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2021-06-17 13:37:09,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=518, Invalid=2904, Unknown=0, NotChecked=0, Total=3422 [2021-06-17 13:37:09,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:37:09,788 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:37:09,789 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 59 states, 59 states have (on average 2.0338983050847457) internal successors, (120), 58 states have internal predecessors, (120), 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) [2021-06-17 13:37:09,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:37:09,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:37:09,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:37:09,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:37:09,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:37:09,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-06-17 13:37:09,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:37:11,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:37:11,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:37:11,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:37:11,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:37:11,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:37:11,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-17 13:37:11,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-17 13:37:11,817 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:37:11,819 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:37:11,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:37:11,820 INFO L82 PathProgramCache]: Analyzing trace with hash 45011887, now seen corresponding path program 7 times [2021-06-17 13:37:11,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:37:11,820 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118611946] [2021-06-17 13:37:11,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:37:11,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:37:13,219 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 68 [2021-06-17 13:37:13,593 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 29 [2021-06-17 13:37:13,873 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 61 [2021-06-17 13:37:14,046 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 64 [2021-06-17 13:37:14,222 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 70 [2021-06-17 13:37:14,397 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 69 [2021-06-17 13:37:14,760 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 63 [2021-06-17 13:37:14,930 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 66 [2021-06-17 13:37:15,278 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 31 [2021-06-17 13:37:15,838 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 85 [2021-06-17 13:37:16,029 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 32 [2021-06-17 13:37:16,171 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 72 [2021-06-17 13:37:16,507 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-06-17 13:37:16,686 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 32 [2021-06-17 13:37:17,022 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 5 proven. 217 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:37:17,023 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:37:17,023 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118611946] [2021-06-17 13:37:17,023 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118611946] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:37:17,023 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307548106] [2021-06-17 13:37:17,023 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:37:17,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:37:17,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 38 conjunts are in the unsatisfiable core [2021-06-17 13:37:17,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:37:18,121 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-17 13:37:18,470 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 81 [2021-06-17 13:37:18,818 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 85 [2021-06-17 13:37:19,114 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 77 [2021-06-17 13:37:19,433 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 79 [2021-06-17 13:37:19,771 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 86 [2021-06-17 13:37:20,171 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 93 [2021-06-17 13:37:20,630 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 101 [2021-06-17 13:37:21,173 WARN L205 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 109 [2021-06-17 13:37:21,815 WARN L205 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 119 [2021-06-17 13:37:22,582 WARN L205 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 134 [2021-06-17 13:37:23,550 WARN L205 SmtUtils]: Spent 697.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 148 [2021-06-17 13:37:24,891 WARN L205 SmtUtils]: Spent 952.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 165 [2021-06-17 13:37:26,319 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 208 DAG size of output: 179 [2021-06-17 13:37:27,046 WARN L205 SmtUtils]: Spent 509.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2021-06-17 13:37:27,747 WARN L205 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-06-17 13:37:28,486 WARN L205 SmtUtils]: Spent 465.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2021-06-17 13:37:28,778 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:37:28,778 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307548106] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:37:28,778 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:37:28,778 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 62 [2021-06-17 13:37:28,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396832168] [2021-06-17 13:37:28,779 INFO L462 AbstractCegarLoop]: Interpolant automaton has 63 states [2021-06-17 13:37:28,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:37:28,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2021-06-17 13:37:28,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=558, Invalid=3348, Unknown=0, NotChecked=0, Total=3906 [2021-06-17 13:37:28,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:37:28,781 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:37:28,781 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 63 states, 63 states have (on average 2.0317460317460316) internal successors, (128), 62 states have internal predecessors, (128), 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) [2021-06-17 13:37:28,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:37:28,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:37:28,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:37:28,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:37:28,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:37:28,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-06-17 13:37:28,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-17 13:37:28,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:37:31,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:37:31,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:37:31,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:37:31,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:37:31,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:37:31,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-17 13:37:31,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-17 13:37:31,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-17 13:37:31,577 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable211 [2021-06-17 13:37:31,578 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:37:31,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:37:31,578 INFO L82 PathProgramCache]: Analyzing trace with hash -1327705980, now seen corresponding path program 8 times [2021-06-17 13:37:31,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:37:31,578 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339103648] [2021-06-17 13:37:31,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:37:31,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:37:31,911 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 160 proven. 406 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2021-06-17 13:37:31,911 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:37:31,911 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339103648] [2021-06-17 13:37:31,911 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339103648] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:37:31,911 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406195532] [2021-06-17 13:37:31,911 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 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:37:31,964 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 13:37:31,964 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 13:37:31,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 44 conjunts are in the unsatisfiable core [2021-06-17 13:37:31,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:37:32,884 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 184 proven. 423 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-06-17 13:37:32,885 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406195532] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:37:32,885 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:37:32,885 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 28] total 45 [2021-06-17 13:37:32,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921050789] [2021-06-17 13:37:32,885 INFO L462 AbstractCegarLoop]: Interpolant automaton has 45 states [2021-06-17 13:37:32,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:37:32,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-06-17 13:37:32,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=505, Invalid=1475, Unknown=0, NotChecked=0, Total=1980 [2021-06-17 13:37:32,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:37:32,887 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:37:32,887 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 45 states, 45 states have (on average 2.888888888888889) internal successors, (130), 45 states have internal predecessors, (130), 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) [2021-06-17 13:37:32,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:37:32,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:37:32,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:37:32,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:37:32,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:37:32,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-06-17 13:37:32,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-17 13:37:32,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-17 13:37:32,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:37:36,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:37:36,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:37:36,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:37:36,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:37:36,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:37:36,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-17 13:37:36,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-17 13:37:36,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-17 13:37:36,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-06-17 13:37:36,548 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:37:36,549 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:37:36,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:37:36,549 INFO L82 PathProgramCache]: Analyzing trace with hash -269092912, now seen corresponding path program 9 times [2021-06-17 13:37:36,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:37:36,549 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584270108] [2021-06-17 13:37:36,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:37:36,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:37:37,820 INFO L134 CoverageAnalysis]: Checked inductivity of 2473 backedges. 1035 proven. 1400 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-06-17 13:37:37,820 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:37:37,820 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584270108] [2021-06-17 13:37:37,820 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584270108] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:37:37,820 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866574940] [2021-06-17 13:37:37,821 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:37:37,916 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 31 check-sat command(s) [2021-06-17 13:37:37,916 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 13:37:37,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 98 conjunts are in the unsatisfiable core [2021-06-17 13:37:37,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:37:41,186 INFO L134 CoverageAnalysis]: Checked inductivity of 2473 backedges. 807 proven. 1633 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-06-17 13:37:41,186 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1866574940] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:37:41,186 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:37:41,186 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 51] total 101 [2021-06-17 13:37:41,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921355200] [2021-06-17 13:37:41,187 INFO L462 AbstractCegarLoop]: Interpolant automaton has 101 states [2021-06-17 13:37:41,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:37:41,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2021-06-17 13:37:41,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2016, Invalid=8084, Unknown=0, NotChecked=0, Total=10100 [2021-06-17 13:37:41,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:37:41,190 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:37:41,190 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 101 states, 101 states have (on average 2.5247524752475248) internal successors, (255), 101 states have internal predecessors, (255), 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) [2021-06-17 13:37:41,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:37:41,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:37:41,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:37:41,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:37:41,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:37:41,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-06-17 13:37:41,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-17 13:37:41,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-17 13:37:41,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2021-06-17 13:37:41,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:37:46,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:37:46,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:37:46,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:37:46,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:37:46,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:37:46,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-17 13:37:46,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-17 13:37:46,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-17 13:37:46,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-06-17 13:37:46,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2021-06-17 13:37:46,853 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable348,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:37:46,853 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:37:46,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:37:46,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1430831138, now seen corresponding path program 10 times [2021-06-17 13:37:46,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:37:46,854 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57569203] [2021-06-17 13:37:46,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:37:46,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:37:49,168 INFO L134 CoverageAnalysis]: Checked inductivity of 4522 backedges. 2059 proven. 2417 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-06-17 13:37:49,169 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:37:49,169 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57569203] [2021-06-17 13:37:49,169 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57569203] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:37:49,169 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588473625] [2021-06-17 13:37:49,169 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:37:49,267 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-17 13:37:49,267 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 13:37:49,271 WARN L261 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 137 conjunts are in the unsatisfiable core [2021-06-17 13:37:49,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:37:53,140 INFO L134 CoverageAnalysis]: Checked inductivity of 4522 backedges. 2197 proven. 2290 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-06-17 13:37:53,141 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588473625] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:37:53,141 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:37:53,141 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [80, 78] total 138 [2021-06-17 13:37:53,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208538096] [2021-06-17 13:37:53,141 INFO L462 AbstractCegarLoop]: Interpolant automaton has 138 states [2021-06-17 13:37:53,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:37:53,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 138 interpolants. [2021-06-17 13:37:53,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4355, Invalid=14551, Unknown=0, NotChecked=0, Total=18906 [2021-06-17 13:37:53,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:37:53,146 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:37:53,147 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 138 states, 138 states have (on average 2.3550724637681157) internal successors, (325), 138 states have internal predecessors, (325), 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) [2021-06-17 13:37:53,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:37:53,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:37:53,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:37:53,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:37:53,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:37:53,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-06-17 13:37:53,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-17 13:37:53,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-17 13:37:53,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-06-17 13:37:53,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2021-06-17 13:37:53,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:37:55,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:37:55,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:37:55,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:37:55,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:37:55,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:37:55,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-17 13:37:55,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-17 13:37:55,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-17 13:37:55,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-06-17 13:37:55,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2021-06-17 13:37:55,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-06-17 13:37:55,897 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable448 [2021-06-17 13:37:55,897 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:37:55,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:37:55,897 INFO L82 PathProgramCache]: Analyzing trace with hash 880419038, now seen corresponding path program 11 times [2021-06-17 13:37:55,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:37:55,897 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961147622] [2021-06-17 13:37:55,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:37:56,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:37:58,387 INFO L134 CoverageAnalysis]: Checked inductivity of 5110 backedges. 1930 proven. 3004 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2021-06-17 13:37:58,388 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:37:58,388 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961147622] [2021-06-17 13:37:58,388 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961147622] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:37:58,388 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77462361] [2021-06-17 13:37:58,388 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:37:58,575 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2021-06-17 13:37:58,575 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 13:37:58,580 WARN L261 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 142 conjunts are in the unsatisfiable core [2021-06-17 13:37:58,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:38:03,037 INFO L134 CoverageAnalysis]: Checked inductivity of 5110 backedges. 2275 proven. 2794 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-06-17 13:38:03,038 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77462361] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:38:03,038 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:38:03,038 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [76, 81] total 142 [2021-06-17 13:38:03,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122967233] [2021-06-17 13:38:03,038 INFO L462 AbstractCegarLoop]: Interpolant automaton has 142 states [2021-06-17 13:38:03,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:38:03,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 142 interpolants. [2021-06-17 13:38:03,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4797, Invalid=15225, Unknown=0, NotChecked=0, Total=20022 [2021-06-17 13:38:03,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:38:03,042 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:38:03,043 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 142 states, 142 states have (on average 2.408450704225352) internal successors, (342), 142 states have internal predecessors, (342), 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) [2021-06-17 13:38:03,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:38:03,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:38:03,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:38:03,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:38:03,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:38:03,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-06-17 13:38:03,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-17 13:38:03,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-17 13:38:03,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-06-17 13:38:03,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2021-06-17 13:38:03,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2021-06-17 13:38:03,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:38:07,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:38:07,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:38:07,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:38:07,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:38:07,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:38:07,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-17 13:38:07,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-17 13:38:07,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-17 13:38:07,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-06-17 13:38:07,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2021-06-17 13:38:07,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-06-17 13:38:07,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2021-06-17 13:38:07,869 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable512 [2021-06-17 13:38:07,869 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:38:07,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:38:07,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1897473826, now seen corresponding path program 12 times [2021-06-17 13:38:07,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:38:07,870 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036870472] [2021-06-17 13:38:07,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:38:08,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:38:09,294 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 6 [2021-06-17 13:38:10,954 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 8 [2021-06-17 13:38:12,843 INFO L134 CoverageAnalysis]: Checked inductivity of 8610 backedges. 3936 proven. 4232 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2021-06-17 13:38:12,843 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:38:12,843 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036870472] [2021-06-17 13:38:12,843 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036870472] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:38:12,843 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989508882] [2021-06-17 13:38:12,843 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:38:13,091 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 55 check-sat command(s) [2021-06-17 13:38:13,091 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 13:38:13,096 WARN L261 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 191 conjunts are in the unsatisfiable core [2021-06-17 13:38:13,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:38:21,556 INFO L134 CoverageAnalysis]: Checked inductivity of 8610 backedges. 3679 proven. 4873 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-06-17 13:38:21,556 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1989508882] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:38:21,556 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:38:21,556 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [109, 101] total 204 [2021-06-17 13:38:21,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971014664] [2021-06-17 13:38:21,557 INFO L462 AbstractCegarLoop]: Interpolant automaton has 204 states [2021-06-17 13:38:21,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:38:21,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 204 interpolants. [2021-06-17 13:38:21,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9326, Invalid=32086, Unknown=0, NotChecked=0, Total=41412 [2021-06-17 13:38:21,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:38:21,560 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:38:21,560 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 204 states, 204 states have (on average 2.053921568627451) internal successors, (419), 204 states have internal predecessors, (419), 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) [2021-06-17 13:38:21,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:38:21,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:38:21,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:38:21,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:38:21,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:38:21,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-06-17 13:38:21,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-17 13:38:21,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-17 13:38:21,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-06-17 13:38:21,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 132 states. [2021-06-17 13:38:21,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2021-06-17 13:38:21,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. [2021-06-17 13:38:21,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:38:33,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:38:33,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:38:33,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:38:33,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:38:33,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:38:33,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-17 13:38:33,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-17 13:38:33,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-17 13:38:33,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-06-17 13:38:33,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2021-06-17 13:38:33,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-06-17 13:38:33,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2021-06-17 13:38:33,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 203 states. [2021-06-17 13:38:33,740 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable583 [2021-06-17 13:38:33,740 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:38:33,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:38:33,741 INFO L82 PathProgramCache]: Analyzing trace with hash -673076258, now seen corresponding path program 13 times [2021-06-17 13:38:33,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:38:33,741 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345684034] [2021-06-17 13:38:33,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:38:33,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:38:40,979 INFO L134 CoverageAnalysis]: Checked inductivity of 17890 backedges. 10436 proven. 7354 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-06-17 13:38:40,980 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:38:40,980 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345684034] [2021-06-17 13:38:40,980 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345684034] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:38:40,980 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750599236] [2021-06-17 13:38:40,980 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:38:41,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:38:41,171 WARN L261 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 270 conjunts are in the unsatisfiable core [2021-06-17 13:38:41,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:38:52,082 INFO L134 CoverageAnalysis]: Checked inductivity of 17890 backedges. 9841 proven. 7968 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-06-17 13:38:52,083 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750599236] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:38:52,083 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:38:52,083 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [139, 140] total 245 [2021-06-17 13:38:52,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152881439] [2021-06-17 13:38:52,084 INFO L462 AbstractCegarLoop]: Interpolant automaton has 245 states [2021-06-17 13:38:52,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:38:52,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 245 interpolants. [2021-06-17 13:38:52,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16292, Invalid=43488, Unknown=0, NotChecked=0, Total=59780 [2021-06-17 13:38:52,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:38:52,088 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:38:52,089 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 245 states, 245 states have (on average 2.3877551020408165) internal successors, (585), 245 states have internal predecessors, (585), 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) [2021-06-17 13:38:52,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:38:52,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:38:52,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:38:52,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:38:52,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:38:52,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-06-17 13:38:52,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-17 13:38:52,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-17 13:38:52,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-06-17 13:38:52,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 145 states. [2021-06-17 13:38:52,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2021-06-17 13:38:52,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. [2021-06-17 13:38:52,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 203 states. [2021-06-17 13:38:52,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:38:55,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:38:55,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:38:55,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:38:55,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:38:55,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:38:55,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-17 13:38:55,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-17 13:38:55,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-17 13:38:55,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-06-17 13:38:55,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2021-06-17 13:38:55,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-06-17 13:38:55,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2021-06-17 13:38:55,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 204 states. [2021-06-17 13:38:55,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2021-06-17 13:38:55,861 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable751,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:38:55,862 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:38:55,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:38:55,862 INFO L82 PathProgramCache]: Analyzing trace with hash 456489408, now seen corresponding path program 14 times [2021-06-17 13:38:55,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:38:55,862 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863121558] [2021-06-17 13:38:55,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:38:56,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:39:03,058 INFO L134 CoverageAnalysis]: Checked inductivity of 20023 backedges. 9938 proven. 9984 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2021-06-17 13:39:03,059 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:39:03,059 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863121558] [2021-06-17 13:39:03,059 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863121558] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:39:03,059 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190989911] [2021-06-17 13:39:03,059 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 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:39:03,338 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 13:39:03,338 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 13:39:03,347 WARN L261 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 282 conjunts are in the unsatisfiable core [2021-06-17 13:39:03,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:39:21,058 INFO L134 CoverageAnalysis]: Checked inductivity of 20023 backedges. 3541 proven. 16395 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2021-06-17 13:39:21,059 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [190989911] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:39:21,059 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:39:21,059 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [148, 122] total 264 [2021-06-17 13:39:21,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972176832] [2021-06-17 13:39:21,060 INFO L462 AbstractCegarLoop]: Interpolant automaton has 264 states [2021-06-17 13:39:21,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:39:21,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 264 interpolants. [2021-06-17 13:39:21,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12572, Invalid=56860, Unknown=0, NotChecked=0, Total=69432 [2021-06-17 13:39:21,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:39:21,064 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:39:21,065 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 264 states, 264 states have (on average 2.5265151515151514) internal successors, (667), 264 states have internal predecessors, (667), 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) [2021-06-17 13:39:21,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:39:21,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:39:21,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:39:21,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:39:21,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:39:21,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-06-17 13:39:21,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-17 13:39:21,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-17 13:39:21,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-06-17 13:39:21,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 145 states. [2021-06-17 13:39:21,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2021-06-17 13:39:21,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. [2021-06-17 13:39:21,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 204 states. [2021-06-17 13:39:21,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 87 states. [2021-06-17 13:39:21,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:39:33,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:39:33,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:39:33,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:39:33,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:39:33,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:39:33,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-17 13:39:33,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-17 13:39:33,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-17 13:39:33,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-06-17 13:39:33,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2021-06-17 13:39:33,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-06-17 13:39:33,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2021-06-17 13:39:33,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 204 states. [2021-06-17 13:39:33,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2021-06-17 13:39:33,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2021-06-17 13:39:33,505 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable868,16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:39:33,505 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:39:33,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:39:33,506 INFO L82 PathProgramCache]: Analyzing trace with hash -785123648, now seen corresponding path program 15 times [2021-06-17 13:39:33,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:39:33,506 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834233863] [2021-06-17 13:39:33,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:39:34,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:39:38,259 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 7 [2021-06-17 13:39:38,716 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 7 [2021-06-17 13:39:39,944 WARN L205 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 156 DAG size of output: 7 [2021-06-17 13:39:40,226 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 7 [2021-06-17 13:39:44,584 WARN L205 SmtUtils]: Spent 4.36 s on a formula simplification. DAG size of input: 222 DAG size of output: 7 [2021-06-17 13:39:44,866 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 7 [2021-06-17 13:39:45,205 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 7 [2021-06-17 13:40:35,606 WARN L205 SmtUtils]: Spent 50.40 s on a formula simplification. DAG size of input: 252 DAG size of output: 7 [2021-06-17 13:44:37,440 WARN L205 SmtUtils]: Spent 4.03 m on a formula simplification. DAG size of input: 270 DAG size of output: 7 [2021-06-17 13:44:37,742 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 7 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown