/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-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sorted.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-14 22:33:29,354 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-14 22:33:29,357 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-14 22:33:29,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-14 22:33:29,453 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-Lockstep.epf [2021-06-14 22:33:29,482 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-14 22:33:29,482 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-14 22:33:29,483 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-14 22:33:29,483 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-14 22:33:29,484 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-14 22:33:29,484 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-14 22:33:29,484 INFO L138 SettingsManager]: * Use SBE=true [2021-06-14 22:33:29,484 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-14 22:33:29,484 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-14 22:33:29,484 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-14 22:33:29,485 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-14 22:33:29,485 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-14 22:33:29,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-14 22:33:29,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-14 22:33:29,485 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-14 22:33:29,485 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-14 22:33:29,485 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-14 22:33:29,485 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-14 22:33:29,486 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-14 22:33:29,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-14 22:33:29,486 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-14 22:33:29,486 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-14 22:33:29,486 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-14 22:33:29,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-14 22:33:29,486 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-14 22:33:29,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-14 22:33:29,487 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-14 22:33:29,487 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-14 22:33:29,487 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-06-14 22:33:29,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-14 22:33:29,487 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-14 22:33:29,487 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-14 22:33:29,488 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-14 22:33:29,488 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-06-14 22:33:29,488 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-14 22:33:29,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-14 22:33:29,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-14 22:33:29,841 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-14 22:33:29,842 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-14 22:33:29,845 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-14 22:33:29,846 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sorted.wvr.bpl [2021-06-14 22:33:29,846 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sorted.wvr.bpl' [2021-06-14 22:33:29,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-14 22:33:29,867 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-14 22:33:29,871 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-14 22:33:29,871 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-14 22:33:29,871 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-14 22:33:29,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 10:33:29" (1/1) ... [2021-06-14 22:33:29,885 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 10:33:29" (1/1) ... [2021-06-14 22:33:29,890 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-14 22:33:29,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-14 22:33:29,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-14 22:33:29,891 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-14 22:33:29,897 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 10:33:29" (1/1) ... [2021-06-14 22:33:29,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 10:33:29" (1/1) ... [2021-06-14 22:33:29,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 10:33:29" (1/1) ... [2021-06-14 22:33:29,898 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 10:33:29" (1/1) ... [2021-06-14 22:33:29,900 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 10:33:29" (1/1) ... [2021-06-14 22:33:29,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 10:33:29" (1/1) ... [2021-06-14 22:33:29,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 10:33:29" (1/1) ... [2021-06-14 22:33:29,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-14 22:33:29,905 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-14 22:33:29,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-14 22:33:29,905 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-14 22:33:29,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 10:33:29" (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 [2021-06-14 22:33:29,966 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-14 22:33:29,967 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-14 22:33:29,967 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-14 22:33:29,967 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-14 22:33:29,967 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-14 22:33:29,967 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-14 22:33:29,967 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-14 22:33:29,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-14 22:33:29,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-14 22:33:29,967 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-14 22:33:29,967 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-14 22:33:29,968 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-14 22:33:29,968 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-14 22:33:30,161 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-14 22:33:30,161 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-14 22:33:30,163 INFO L202 PluginConnector]: Adding new model sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 10:33:30 BoogieIcfgContainer [2021-06-14 22:33:30,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-14 22:33:30,165 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-14 22:33:30,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-14 22:33:30,167 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-14 22:33:30,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 10:33:29" (1/2) ... [2021-06-14 22:33:30,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61cf2494 and model type sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 10:33:30, skipping insertion in model container [2021-06-14 22:33:30,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 10:33:30" (2/2) ... [2021-06-14 22:33:30,170 INFO L111 eAbstractionObserver]: Analyzing ICFG sorted.wvr.bpl [2021-06-14 22:33:30,174 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-14 22:33:30,174 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-14 22:33:30,174 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-14 22:33:30,175 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-14 22:33:30,215 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-14 22:33:30,242 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 [2021-06-14 22:33:30,301 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-14 22:33:30,301 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-14 22:33:30,301 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-14 22:33:30,301 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-14 22:33:30,301 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-14 22:33:30,302 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-14 22:33:30,302 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-14 22:33:30,302 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-14 22:33:30,384 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 22:33:30,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 22:33:30,389 INFO L82 PathProgramCache]: Analyzing trace with hash -318664644, now seen corresponding path program 1 times [2021-06-14 22:33:30,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 22:33:30,396 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127811672] [2021-06-14 22:33:30,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 22:33:30,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 22:33:30,729 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-14 22:33:30,729 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 22:33:30,730 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127811672] [2021-06-14 22:33:30,730 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127811672] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 22:33:30,730 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274730471] [2021-06-14 22:33:30,731 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 [2021-06-14 22:33:30,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 22:33:30,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-14 22:33:30,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 22:33:31,051 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-14 22:33:31,051 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274730471] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 22:33:31,051 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 22:33:31,051 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-06-14 22:33:31,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302846598] [2021-06-14 22:33:31,056 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-14 22:33:31,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 22:33:31,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-14 22:33:31,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-06-14 22:33:31,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 22:33:31,071 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 22:33:31,073 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 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) [2021-06-14 22:33:31,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 22:33:31,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-14 22:33:31,626 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-06-14 22:33:31,626 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 22:33:31,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 22:33:31,627 INFO L82 PathProgramCache]: Analyzing trace with hash 1930702658, now seen corresponding path program 1 times [2021-06-14 22:33:31,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 22:33:31,627 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898603008] [2021-06-14 22:33:31,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 22:33:31,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 22:33:31,719 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-14 22:33:31,719 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 22:33:31,719 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898603008] [2021-06-14 22:33:31,720 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898603008] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 22:33:31,720 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [619263633] [2021-06-14 22:33:31,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-06-14 22:33:31,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 22:33:31,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-14 22:33:31,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 22:33:32,004 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-14 22:33:32,004 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [619263633] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 22:33:32,004 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 22:33:32,004 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-06-14 22:33:32,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827011915] [2021-06-14 22:33:32,005 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-14 22:33:32,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 22:33:32,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-14 22:33:32,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2021-06-14 22:33:32,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 22:33:32,007 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 22:33:32,007 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 3.375) internal successors, (54), 16 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 22:33:32,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-14 22:33:32,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 22:33:32,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-14 22:33:32,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 22:33:32,572 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 22:33:32,573 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 22:33:32,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 22:33:32,573 INFO L82 PathProgramCache]: Analyzing trace with hash -777581274, now seen corresponding path program 2 times [2021-06-14 22:33:32,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 22:33:32,574 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130986399] [2021-06-14 22:33:32,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 22:33:32,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 22:33:32,694 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 10 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-14 22:33:32,695 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 22:33:32,695 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130986399] [2021-06-14 22:33:32,695 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130986399] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 22:33:32,695 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1097851676] [2021-06-14 22:33:32,695 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 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 [2021-06-14 22:33:32,738 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-14 22:33:32,739 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 22:33:32,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-14 22:33:32,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 22:33:32,912 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 12 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-06-14 22:33:32,912 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1097851676] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 22:33:32,913 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 22:33:32,913 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 18 [2021-06-14 22:33:32,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467818673] [2021-06-14 22:33:32,913 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-14 22:33:32,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 22:33:32,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-14 22:33:32,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2021-06-14 22:33:32,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 22:33:32,915 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 22:33:32,915 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 3.5555555555555554) internal successors, (64), 18 states have internal predecessors, (64), 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) [2021-06-14 22:33:32,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-14 22:33:32,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-14 22:33:32,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 22:33:33,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-14 22:33:33,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 22:33:33,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-14 22:33:33,893 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 22:33:33,893 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 22:33:33,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 22:33:33,894 INFO L82 PathProgramCache]: Analyzing trace with hash 1865494060, now seen corresponding path program 3 times [2021-06-14 22:33:33,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 22:33:33,894 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296968586] [2021-06-14 22:33:33,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 22:33:33,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 22:33:34,023 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 14 proven. 52 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-14 22:33:34,023 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 22:33:34,023 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296968586] [2021-06-14 22:33:34,023 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296968586] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 22:33:34,023 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061336534] [2021-06-14 22:33:34,024 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 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 [2021-06-14 22:33:34,088 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-06-14 22:33:34,088 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 22:33:34,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 17 conjunts are in the unsatisfiable core [2021-06-14 22:33:34,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 22:33:34,351 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 15 proven. 50 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-06-14 22:33:34,351 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061336534] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 22:33:34,352 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 22:33:34,352 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 21 [2021-06-14 22:33:34,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834783163] [2021-06-14 22:33:34,352 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-06-14 22:33:34,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 22:33:34,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-06-14 22:33:34,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2021-06-14 22:33:34,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 22:33:34,353 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 22:33:34,354 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 3.5714285714285716) internal successors, (75), 21 states have internal predecessors, (75), 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) [2021-06-14 22:33:34,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-14 22:33:34,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-14 22:33:34,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-06-14 22:33:34,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 22:33:34,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-14 22:33:34,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 22:33:34,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-14 22:33:34,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-14 22:33:35,026 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 22:33:35,026 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 22:33:35,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 22:33:35,026 INFO L82 PathProgramCache]: Analyzing trace with hash 1534054098, now seen corresponding path program 4 times [2021-06-14 22:33:35,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 22:33:35,026 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604398294] [2021-06-14 22:33:35,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 22:33:35,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 22:33:36,041 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-06-14 22:33:36,335 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 50 [2021-06-14 22:33:36,486 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-14 22:33:36,638 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2021-06-14 22:33:36,971 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2021-06-14 22:33:37,579 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 3 proven. 95 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 22:33:37,580 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 22:33:37,580 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604398294] [2021-06-14 22:33:37,580 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604398294] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 22:33:37,580 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323564273] [2021-06-14 22:33:37,580 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 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 [2021-06-14 22:33:37,633 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-14 22:33:37,633 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 22:33:37,635 WARN L261 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 56 conjunts are in the unsatisfiable core [2021-06-14 22:33:37,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 22:33:40,174 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 144 [2021-06-14 22:33:42,384 WARN L205 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 151 DAG size of output: 81 [2021-06-14 22:33:44,912 WARN L205 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 372 DAG size of output: 363 [2021-06-14 22:33:45,268 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 22:33:45,268 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323564273] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 22:33:45,268 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 22:33:45,268 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 25] total 49 [2021-06-14 22:33:45,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152977619] [2021-06-14 22:33:45,270 INFO L462 AbstractCegarLoop]: Interpolant automaton has 49 states [2021-06-14 22:33:45,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 22:33:45,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-06-14 22:33:45,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=2163, Unknown=0, NotChecked=0, Total=2352 [2021-06-14 22:33:45,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 22:33:45,272 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 22:33:45,272 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 49 states, 49 states have (on average 2.0) internal successors, (98), 49 states have internal predecessors, (98), 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) [2021-06-14 22:33:45,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-14 22:33:45,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-14 22:33:45,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2021-06-14 22:33:45,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-14 22:33:45,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 22:33:47,049 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2021-06-14 22:33:47,254 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 65 [2021-06-14 22:33:47,448 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2021-06-14 22:33:47,632 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 71 [2021-06-14 22:33:47,931 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 75 [2021-06-14 22:33:48,197 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 68 [2021-06-14 22:33:48,536 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 99 [2021-06-14 22:33:48,787 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 100 [2021-06-14 22:33:48,969 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2021-06-14 22:33:49,214 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 98 [2021-06-14 22:33:49,706 WARN L205 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 88 [2021-06-14 22:33:49,979 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 90 [2021-06-14 22:33:50,183 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 74 [2021-06-14 22:33:50,533 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 110 [2021-06-14 22:33:50,743 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 72 [2021-06-14 22:33:51,110 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 109 [2021-06-14 22:33:51,600 WARN L205 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 113 [2021-06-14 22:33:52,229 WARN L205 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 112 [2021-06-14 22:33:52,598 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 111 [2021-06-14 22:33:53,092 WARN L205 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 115 [2021-06-14 22:33:53,651 WARN L205 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 114 [2021-06-14 22:33:54,158 WARN L205 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 118 [2021-06-14 22:33:54,409 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 95 [2021-06-14 22:33:54,887 WARN L205 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 97 [2021-06-14 22:33:55,194 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 107 [2021-06-14 22:33:55,578 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 96 [2021-06-14 22:33:56,016 WARN L205 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 110 [2021-06-14 22:33:56,470 WARN L205 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 100 [2021-06-14 22:33:56,715 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 94 [2021-06-14 22:33:57,255 WARN L205 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 100 [2021-06-14 22:33:57,574 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 90 [2021-06-14 22:33:58,082 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 92 [2021-06-14 22:33:58,426 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 97 [2021-06-14 22:33:58,858 WARN L205 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 88 [2021-06-14 22:33:59,333 WARN L205 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 104 [2021-06-14 22:33:59,675 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 119 [2021-06-14 22:34:00,034 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 119 [2021-06-14 22:34:00,234 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 78 [2021-06-14 22:34:00,462 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 87 [2021-06-14 22:34:00,843 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 87 [2021-06-14 22:34:01,260 WARN L205 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 99 [2021-06-14 22:34:01,530 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 70 [2021-06-14 22:34:01,851 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 113 [2021-06-14 22:34:02,215 WARN L205 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 93 [2021-06-14 22:34:02,560 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 87 [2021-06-14 22:34:02,768 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 87 [2021-06-14 22:34:03,059 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 76 [2021-06-14 22:34:03,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-14 22:34:03,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 22:34:03,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-14 22:34:03,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-14 22:34:03,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-06-14 22:34:03,752 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 22:34:03,753 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 22:34:03,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 22:34:03,753 INFO L82 PathProgramCache]: Analyzing trace with hash 906253742, now seen corresponding path program 5 times [2021-06-14 22:34:03,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 22:34:03,753 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420798314] [2021-06-14 22:34:03,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 22:34:03,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 22:34:03,919 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 51 proven. 180 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-06-14 22:34:03,920 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 22:34:03,920 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420798314] [2021-06-14 22:34:03,920 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420798314] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 22:34:03,920 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75603775] [2021-06-14 22:34:03,920 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 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 [2021-06-14 22:34:03,975 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2021-06-14 22:34:03,975 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 22:34:03,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 28 conjunts are in the unsatisfiable core [2021-06-14 22:34:03,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 22:34:04,341 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 31 proven. 183 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-06-14 22:34:04,341 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [75603775] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 22:34:04,341 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 22:34:04,341 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 28 [2021-06-14 22:34:04,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877604797] [2021-06-14 22:34:04,343 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-14 22:34:04,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 22:34:04,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-14 22:34:04,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=617, Unknown=0, NotChecked=0, Total=756 [2021-06-14 22:34:04,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 22:34:04,344 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 22:34:04,344 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 3.857142857142857) internal successors, (108), 28 states have internal predecessors, (108), 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) [2021-06-14 22:34:04,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-14 22:34:04,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-14 22:34:04,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2021-06-14 22:34:04,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-14 22:34:04,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2021-06-14 22:34:04,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 22:34:05,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-14 22:34:05,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 22:34:05,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-14 22:34:05,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-14 22:34:05,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-06-14 22:34:05,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-06-14 22:34:05,825 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-06-14 22:34:05,825 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 22:34:05,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 22:34:05,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1865713288, now seen corresponding path program 6 times [2021-06-14 22:34:05,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 22:34:05,826 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751778635] [2021-06-14 22:34:05,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 22:34:05,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 22:34:05,998 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 45 proven. 267 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-06-14 22:34:05,999 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 22:34:05,999 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751778635] [2021-06-14 22:34:05,999 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751778635] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 22:34:05,999 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510618099] [2021-06-14 22:34:05,999 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 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 [2021-06-14 22:34:06,055 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2021-06-14 22:34:06,056 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 22:34:06,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 33 conjunts are in the unsatisfiable core [2021-06-14 22:34:06,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 22:34:06,474 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 46 proven. 265 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-06-14 22:34:06,475 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1510618099] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 22:34:06,475 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 22:34:06,475 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 22] total 33 [2021-06-14 22:34:06,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241649582] [2021-06-14 22:34:06,475 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-06-14 22:34:06,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 22:34:06,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-06-14 22:34:06,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=227, Invalid=829, Unknown=0, NotChecked=0, Total=1056 [2021-06-14 22:34:06,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 22:34:06,476 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 22:34:06,476 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 3.5454545454545454) internal successors, (117), 33 states have internal predecessors, (117), 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) [2021-06-14 22:34:06,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-14 22:34:06,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-14 22:34:06,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2021-06-14 22:34:06,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-14 22:34:06,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2021-06-14 22:34:06,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2021-06-14 22:34:06,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 22:34:07,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-14 22:34:07,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 22:34:07,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-14 22:34:07,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-14 22:34:07,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-06-14 22:34:07,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-06-14 22:34:07,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-06-14 22:34:07,312 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-06-14 22:34:07,313 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 22:34:07,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 22:34:07,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1389825838, now seen corresponding path program 7 times [2021-06-14 22:34:07,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 22:34:07,313 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094274620] [2021-06-14 22:34:07,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 22:34:07,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 22:34:08,340 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2021-06-14 22:34:08,467 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-06-14 22:34:09,564 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2021-06-14 22:34:10,044 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 75 [2021-06-14 22:34:10,213 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2021-06-14 22:34:11,080 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 48 proven. 336 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-06-14 22:34:11,081 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 22:34:11,081 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094274620] [2021-06-14 22:34:11,081 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094274620] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 22:34:11,081 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420911099] [2021-06-14 22:34:11,081 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 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 [2021-06-14 22:34:11,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 22:34:11,170 WARN L261 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 104 conjunts are in the unsatisfiable core [2021-06-14 22:34:11,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 22:34:12,560 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-06-14 22:34:12,810 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-06-14 22:34:13,679 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-06-14 22:34:13,974 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-06-14 22:34:14,215 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-06-14 22:34:14,460 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-06-14 22:34:14,909 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-06-14 22:34:15,146 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-06-14 22:34:15,356 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-06-14 22:34:15,603 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-06-14 22:34:15,913 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2021-06-14 22:34:16,165 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2021-06-14 22:34:16,486 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-06-14 22:34:16,772 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2021-06-14 22:34:19,537 WARN L205 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 915 DAG size of output: 658 [2021-06-14 22:34:21,245 WARN L205 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 671 DAG size of output: 671 [2021-06-14 22:34:22,927 WARN L205 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 671 DAG size of output: 671 [2021-06-14 22:34:23,730 WARN L205 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 671 [2021-06-14 22:34:49,633 WARN L205 SmtUtils]: Spent 25.00 s on a formula simplification. DAG size of input: 671 DAG size of output: 183 [2021-06-14 22:35:10,277 WARN L205 SmtUtils]: Spent 16.46 s on a formula simplification. DAG size of input: 1065 DAG size of output: 1049 [2021-06-14 22:35:11,685 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 1063 DAG size of output: 1063 [2021-06-14 22:35:29,291 WARN L205 SmtUtils]: Spent 16.40 s on a formula simplification. DAG size of input: 1123 DAG size of output: 1053 [2021-06-14 22:35:48,702 WARN L205 SmtUtils]: Spent 16.59 s on a formula simplification. DAG size of input: 1116 DAG size of output: 1048 [2021-06-14 22:35:50,069 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 1060 DAG size of output: 1060 [2021-06-14 22:36:07,827 WARN L205 SmtUtils]: Spent 16.49 s on a formula simplification. DAG size of input: 1100 DAG size of output: 1043 [2021-06-14 22:36:08,663 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 22:36:08,663 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1420911099] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 22:36:08,663 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 22:36:08,663 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 41] total 76 [2021-06-14 22:36:08,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141783856] [2021-06-14 22:36:08,664 INFO L462 AbstractCegarLoop]: Interpolant automaton has 76 states [2021-06-14 22:36:08,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 22:36:08,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2021-06-14 22:36:08,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=412, Invalid=5288, Unknown=0, NotChecked=0, Total=5700 [2021-06-14 22:36:08,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 22:36:08,666 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 22:36:08,667 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 76 states, 76 states have (on average 2.0657894736842106) internal successors, (157), 76 states have internal predecessors, (157), 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) [2021-06-14 22:36:08,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-14 22:36:08,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-14 22:36:08,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2021-06-14 22:36:08,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-14 22:36:08,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2021-06-14 22:36:08,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2021-06-14 22:36:08,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-06-14 22:36:08,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 22:36:10,802 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2021-06-14 22:36:12,146 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 55 [2021-06-14 22:36:12,465 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 60 [2021-06-14 22:36:12,870 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2021-06-14 22:36:13,838 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 68 [2021-06-14 22:36:14,191 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 75 [2021-06-14 22:36:14,654 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2021-06-14 22:36:15,697 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 82 [2021-06-14 22:36:16,090 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 83 [2021-06-14 22:36:16,607 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2021-06-14 22:36:17,809 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 92 [2021-06-14 22:36:18,309 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 98 [2021-06-14 22:36:18,806 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 96 [2021-06-14 22:36:19,293 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 100 [2021-06-14 22:36:19,732 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 102 [2021-06-14 22:36:20,406 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 104 [2021-06-14 22:36:21,111 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 106 [2021-06-14 22:36:21,782 WARN L205 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 111 [2021-06-14 22:36:22,152 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 106 [2021-06-14 22:36:22,718 WARN L205 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 148 [2021-06-14 22:36:23,371 WARN L205 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 118 [2021-06-14 22:36:24,007 WARN L205 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 112 [2021-06-14 22:36:24,489 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 112 [2021-06-14 22:36:25,426 WARN L205 SmtUtils]: Spent 697.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 150 [2021-06-14 22:36:25,865 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 108 [2021-06-14 22:36:26,475 WARN L205 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 156 [2021-06-14 22:36:27,381 WARN L205 SmtUtils]: Spent 714.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 153 [2021-06-14 22:36:28,514 WARN L205 SmtUtils]: Spent 590.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 160 [2021-06-14 22:36:29,396 WARN L205 SmtUtils]: Spent 621.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 148 [2021-06-14 22:36:30,075 WARN L205 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 128 [2021-06-14 22:36:31,041 WARN L205 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 152 [2021-06-14 22:36:31,756 WARN L205 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 133 [2021-06-14 22:36:32,234 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 127 [2021-06-14 22:36:33,145 WARN L205 SmtUtils]: Spent 721.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 163 [2021-06-14 22:36:33,580 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 104 [2021-06-14 22:36:34,334 WARN L205 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 127 [2021-06-14 22:36:34,741 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 104 [2021-06-14 22:36:35,707 WARN L205 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 169 [2021-06-14 22:36:35,946 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-06-14 22:36:36,259 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 71 [2021-06-14 22:36:36,694 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 104 [2021-06-14 22:36:36,980 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2021-06-14 22:36:37,455 WARN L205 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 135 [2021-06-14 22:36:37,847 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 107 [2021-06-14 22:36:38,300 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 122 [2021-06-14 22:36:38,539 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-06-14 22:36:39,050 WARN L205 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 129 [2021-06-14 22:36:39,361 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 104 [2021-06-14 22:36:39,803 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 101 [2021-06-14 22:36:40,182 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 112 [2021-06-14 22:36:40,614 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 94 [2021-06-14 22:36:40,907 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 52 [2021-06-14 22:36:41,451 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 86 [2021-06-14 22:36:42,414 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 32 [2021-06-14 22:36:42,829 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 66 [2021-06-14 22:36:43,546 WARN L205 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 144 [2021-06-14 22:36:43,908 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 124 [2021-06-14 22:36:44,306 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 125 [2021-06-14 22:36:45,021 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2021-06-14 22:36:46,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-14 22:36:46,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 22:36:46,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-14 22:36:46,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-14 22:36:46,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-06-14 22:36:46,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-06-14 22:36:46,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-06-14 22:36:46,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2021-06-14 22:36:46,729 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-06-14 22:36:46,729 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 22:36:46,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 22:36:46,730 INFO L82 PathProgramCache]: Analyzing trace with hash -8206606, now seen corresponding path program 8 times [2021-06-14 22:36:46,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 22:36:46,730 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679349540] [2021-06-14 22:36:46,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 22:36:46,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 22:36:48,455 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-14 22:36:48,850 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 76 [2021-06-14 22:36:48,996 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-06-14 22:36:49,153 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 78 [2021-06-14 22:36:49,322 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2021-06-14 22:36:49,495 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 84 [2021-06-14 22:36:49,645 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 77 [2021-06-14 22:36:49,912 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2021-06-14 22:36:50,091 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 85 [2021-06-14 22:36:50,252 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2021-06-14 22:36:51,451 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 48 proven. 443 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-14 22:36:51,451 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 22:36:51,451 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679349540] [2021-06-14 22:36:51,451 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679349540] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 22:36:51,451 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511052996] [2021-06-14 22:36:51,451 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 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 [2021-06-14 22:36:51,536 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-14 22:36:51,537 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 22:36:51,539 WARN L261 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 116 conjunts are in the unsatisfiable core [2021-06-14 22:36:51,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 22:36:54,762 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-06-14 22:36:55,000 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-06-14 22:36:55,260 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-06-14 22:36:55,480 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-06-14 22:36:55,716 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-06-14 22:36:55,951 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-06-14 22:36:56,208 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-06-14 22:36:56,462 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-06-14 22:36:56,746 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-06-14 22:36:57,042 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2021-06-14 22:36:57,315 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2021-06-14 22:36:57,639 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2021-06-14 22:36:57,950 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-06-14 22:37:02,341 WARN L205 SmtUtils]: Spent 4.13 s on a formula simplification. DAG size of input: 1161 DAG size of output: 669 [2021-06-14 22:37:04,175 WARN L205 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 684 DAG size of output: 684 [2021-06-14 22:37:05,968 WARN L205 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 684 DAG size of output: 684 [2021-06-14 22:37:06,928 WARN L205 SmtUtils]: Spent 948.00 ms on a formula simplification that was a NOOP. DAG size: 684 [2021-06-14 22:37:53,245 WARN L205 SmtUtils]: Spent 45.30 s on a formula simplification. DAG size of input: 684 DAG size of output: 207 [2021-06-14 22:37:57,372 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 221 [2021-06-14 22:37:57,897 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 306 [2021-06-14 22:37:58,012 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 211 [2021-06-14 22:37:58,165 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 217 [2021-06-14 22:37:58,320 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 217 [2021-06-14 22:37:58,664 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 2575 DAG size of output: 2575 [2021-06-14 22:37:58,981 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 2954 DAG size of output: 2954 [2021-06-14 22:37:59,206 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 2954 DAG size of output: 2954 [2021-06-14 22:37:59,401 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 2954 [2021-06-14 22:38:31,275 WARN L227 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2021-06-14 22:38:31,277 WARN L348 FreeRefinementEngine]: Global settings require throwing the following exception [2021-06-14 22:38:31,477 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 22:38:31,478 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:626) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:120) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:184) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:173) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:140) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:360) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:305) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:582) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:201) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:297) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:190) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:180) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:561) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:374) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:63) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:364) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:293) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:238) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:238) ... 53 more [2021-06-14 22:38:31,483 INFO L168 Benchmark]: Toolchain (without parser) took 301615.61 ms. Allocated memory was 185.6 MB in the beginning and 619.7 MB in the end (delta: 434.1 MB). Free memory was 165.2 MB in the beginning and 382.4 MB in the end (delta: -217.1 MB). Peak memory consumption was 394.3 MB. Max. memory is 8.0 GB. [2021-06-14 22:38:31,483 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 185.6 MB. Free memory was 166.5 MB in the beginning and 166.4 MB in the end (delta: 92.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-06-14 22:38:31,483 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.11 ms. Allocated memory is still 185.6 MB. Free memory was 165.2 MB in the beginning and 163.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-14 22:38:31,483 INFO L168 Benchmark]: Boogie Preprocessor took 13.34 ms. Allocated memory is still 185.6 MB. Free memory was 163.7 MB in the beginning and 162.8 MB in the end (delta: 924.6 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-14 22:38:31,483 INFO L168 Benchmark]: RCFGBuilder took 258.45 ms. Allocated memory is still 185.6 MB. Free memory was 162.8 MB in the beginning and 149.3 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-06-14 22:38:31,483 INFO L168 Benchmark]: TraceAbstraction took 301317.44 ms. Allocated memory was 185.6 MB in the beginning and 619.7 MB in the end (delta: 434.1 MB). Free memory was 148.8 MB in the beginning and 382.4 MB in the end (delta: -233.6 MB). Peak memory consumption was 378.6 MB. Max. memory is 8.0 GB. [2021-06-14 22:38:31,484 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 185.6 MB. Free memory was 166.5 MB in the beginning and 166.4 MB in the end (delta: 92.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 19.11 ms. Allocated memory is still 185.6 MB. Free memory was 165.2 MB in the beginning and 163.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.34 ms. Allocated memory is still 185.6 MB. Free memory was 163.7 MB in the beginning and 162.8 MB in the end (delta: 924.6 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 258.45 ms. Allocated memory is still 185.6 MB. Free memory was 162.8 MB in the beginning and 149.3 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 301317.44 ms. Allocated memory was 185.6 MB in the beginning and 619.7 MB in the end (delta: 434.1 MB). Free memory was 148.8 MB in the beginning and 382.4 MB in the end (delta: -233.6 MB). Peak memory consumption was 378.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...