/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-Sleep-NoLbe-New_States.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/name-comparator-subst.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-12 16:46:19,181 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-12 16:46:19,184 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-12 16:46:19,223 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-12 16:46:19,292 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-Sleep-NoLbe-New_States.epf [2021-03-12 16:46:19,330 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-12 16:46:19,330 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-12 16:46:19,331 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-12 16:46:19,331 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-12 16:46:19,333 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-12 16:46:19,333 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-12 16:46:19,334 INFO L138 SettingsManager]: * Use SBE=true [2021-03-12 16:46:19,334 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-12 16:46:19,334 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-12 16:46:19,334 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-12 16:46:19,335 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-12 16:46:19,335 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-12 16:46:19,335 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-12 16:46:19,335 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-12 16:46:19,336 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-12 16:46:19,336 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-12 16:46:19,336 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-12 16:46:19,336 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-12 16:46:19,336 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-12 16:46:19,336 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-12 16:46:19,336 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-12 16:46:19,337 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-12 16:46:19,337 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-12 16:46:19,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-12 16:46:19,337 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-12 16:46:19,337 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-12 16:46:19,337 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-12 16:46:19,337 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-12 16:46:19,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-12 16:46:19,338 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-12 16:46:19,338 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-03-12 16:46:19,338 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-12 16:46:19,338 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-03-12 16:46:19,338 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-12 16:46:19,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-12 16:46:19,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-12 16:46:19,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-12 16:46:19,685 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-12 16:46:19,688 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-12 16:46:19,689 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/name-comparator-subst.wvr.bpl [2021-03-12 16:46:19,690 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/name-comparator-subst.wvr.bpl' [2021-03-12 16:46:19,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-12 16:46:19,730 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-12 16:46:19,731 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-12 16:46:19,731 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-12 16:46:19,731 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-12 16:46:19,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "name-comparator-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:46:19" (1/1) ... [2021-03-12 16:46:19,749 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "name-comparator-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:46:19" (1/1) ... [2021-03-12 16:46:19,757 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-12 16:46:19,759 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-12 16:46:19,759 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-12 16:46:19,759 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-12 16:46:19,764 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "name-comparator-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:46:19" (1/1) ... [2021-03-12 16:46:19,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "name-comparator-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:46:19" (1/1) ... [2021-03-12 16:46:19,765 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "name-comparator-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:46:19" (1/1) ... [2021-03-12 16:46:19,765 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "name-comparator-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:46:19" (1/1) ... [2021-03-12 16:46:19,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "name-comparator-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:46:19" (1/1) ... [2021-03-12 16:46:19,770 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "name-comparator-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:46:19" (1/1) ... [2021-03-12 16:46:19,771 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "name-comparator-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:46:19" (1/1) ... [2021-03-12 16:46:19,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-12 16:46:19,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-12 16:46:19,773 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-12 16:46:19,773 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-12 16:46:19,774 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "name-comparator-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:46:19" (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 [2021-03-12 16:46:19,833 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-12 16:46:19,833 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-12 16:46:19,834 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-12 16:46:19,834 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-12 16:46:19,834 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-12 16:46:19,834 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-12 16:46:19,834 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-12 16:46:19,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-12 16:46:19,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-12 16:46:19,834 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-03-12 16:46:19,836 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-03-12 16:46:19,836 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-03-12 16:46:19,837 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-12 16:46:20,308 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-12 16:46:20,309 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-03-12 16:46:20,310 INFO L202 PluginConnector]: Adding new model name-comparator-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 04:46:20 BoogieIcfgContainer [2021-03-12 16:46:20,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-12 16:46:20,312 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-12 16:46:20,312 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-12 16:46:20,314 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-12 16:46:20,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "name-comparator-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:46:19" (1/2) ... [2021-03-12 16:46:20,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55ab5881 and model type name-comparator-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.03 04:46:20, skipping insertion in model container [2021-03-12 16:46:20,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "name-comparator-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 04:46:20" (2/2) ... [2021-03-12 16:46:20,316 INFO L111 eAbstractionObserver]: Analyzing ICFG name-comparator-subst.wvr.bpl [2021-03-12 16:46:20,321 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-12 16:46:20,321 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-12 16:46:20,324 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-12 16:46:20,325 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-12 16:46:20,353 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-03-12 16:46:20,369 INFO L253 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 [2021-03-12 16:46:20,416 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-12 16:46:20,416 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-12 16:46:20,417 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-12 16:46:20,418 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-12 16:46:20,418 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-12 16:46:20,418 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-12 16:46:20,418 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-12 16:46:20,418 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-12 16:46:20,462 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 16:46:20,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 16:46:20,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1827618260, now seen corresponding path program 1 times [2021-03-12 16:46:20,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 16:46:20,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491626670] [2021-03-12 16:46:20,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 16:46:20,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:46:20,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 16:46:20,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491626670] [2021-03-12 16:46:20,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 16:46:20,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 16:46:20,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032115043] [2021-03-12 16:46:20,776 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 16:46:20,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 16:46:20,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 16:46:20,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-12 16:46:20,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:46:20,806 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 16:46:20,808 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 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) [2021-03-12 16:46:20,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:46:21,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:46:21,027 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-12 16:46:21,028 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 16:46:21,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 16:46:21,033 INFO L82 PathProgramCache]: Analyzing trace with hash 387093815, now seen corresponding path program 1 times [2021-03-12 16:46:21,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 16:46:21,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882548865] [2021-03-12 16:46:21,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 16:46:21,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:46:21,181 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-12 16:46:21,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882548865] [2021-03-12 16:46:21,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636877116] [2021-03-12 16:46:21,182 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 [2021-03-12 16:46:21,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:46:21,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 12 conjunts are in the unsatisfiable core [2021-03-12 16:46:21,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 16:46:21,514 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-12 16:46:21,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 16:46:21,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-03-12 16:46:21,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440132565] [2021-03-12 16:46:21,517 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 16:46:21,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 16:46:21,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 16:46:21,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 16:46:21,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:46:21,518 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 16:46:21,518 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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) [2021-03-12 16:46:21,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:46:21,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:46:21,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:46:21,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:46:21,858 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 16:46:21,859 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 16:46:21,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 16:46:21,859 INFO L82 PathProgramCache]: Analyzing trace with hash -1621532218, now seen corresponding path program 2 times [2021-03-12 16:46:21,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 16:46:21,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622218182] [2021-03-12 16:46:21,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 16:46:21,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:46:21,992 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 16:46:21,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622218182] [2021-03-12 16:46:21,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756805487] [2021-03-12 16:46:21,993 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 16:46:22,047 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 16:46:22,048 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 16:46:22,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-12 16:46:22,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 16:46:22,225 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-12 16:46:22,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 16:46:22,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6] total 13 [2021-03-12 16:46:22,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457639583] [2021-03-12 16:46:22,226 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-12 16:46:22,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 16:46:22,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-12 16:46:22,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-03-12 16:46:22,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:46:22,228 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 16:46:22,228 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 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) [2021-03-12 16:46:22,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:46:22,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:46:22,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:46:22,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:46:22,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:46:22,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-12 16:46:22,823 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 16:46:22,823 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 16:46:22,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 16:46:22,824 INFO L82 PathProgramCache]: Analyzing trace with hash -550639589, now seen corresponding path program 3 times [2021-03-12 16:46:22,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 16:46:22,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401975537] [2021-03-12 16:46:22,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 16:46:22,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:46:22,998 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-12 16:46:22,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401975537] [2021-03-12 16:46:22,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667935572] [2021-03-12 16:46:22,999 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 16:46:23,045 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-12 16:46:23,049 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 16:46:23,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 15 conjunts are in the unsatisfiable core [2021-03-12 16:46:23,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 16:46:23,334 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-03-12 16:46:23,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-03-12 16:46:23,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 13 [2021-03-12 16:46:23,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450592633] [2021-03-12 16:46:23,335 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 16:46:23,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 16:46:23,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 16:46:23,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-03-12 16:46:23,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:46:23,339 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 16:46:23,339 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 16:46:23,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:46:23,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:46:23,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-03-12 16:46:23,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:46:23,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:46:23,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:46:23,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-12 16:46:23,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:46:23,970 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 16:46:23,971 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 16:46:23,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 16:46:23,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1335458381, now seen corresponding path program 1 times [2021-03-12 16:46:23,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 16:46:23,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625023248] [2021-03-12 16:46:23,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 16:46:23,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:46:24,177 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 16:46:24,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625023248] [2021-03-12 16:46:24,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605620107] [2021-03-12 16:46:24,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-03-12 16:46:24,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:46:24,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-12 16:46:24,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 16:46:24,512 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-03-12 16:46:24,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 16:46:24,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 16 [2021-03-12 16:46:24,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291387453] [2021-03-12 16:46:24,513 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-12 16:46:24,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 16:46:24,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-12 16:46:24,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2021-03-12 16:46:24,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:46:24,514 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 16:46:24,514 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.125) internal successors, (34), 16 states have internal predecessors, (34), 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) [2021-03-12 16:46:24,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:46:24,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:46:24,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-03-12 16:46:24,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:46:24,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:46:25,368 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 29 [2021-03-12 16:46:26,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-12 16:46:26,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:46:26,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:26,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:46:26,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:26,956 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 16:46:26,956 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 16:46:26,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 16:46:26,957 INFO L82 PathProgramCache]: Analyzing trace with hash -795037786, now seen corresponding path program 1 times [2021-03-12 16:46:26,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 16:46:26,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250652799] [2021-03-12 16:46:26,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 16:46:26,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:46:27,025 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 16:46:27,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250652799] [2021-03-12 16:46:27,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 16:46:27,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 16:46:27,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674455940] [2021-03-12 16:46:27,026 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 16:46:27,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 16:46:27,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 16:46:27,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-12 16:46:27,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:46:27,027 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 16:46:27,027 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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) [2021-03-12 16:46:27,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-12 16:46:27,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:46:27,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:27,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:46:27,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:27,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:46:27,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-12 16:46:27,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:46:27,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:27,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:46:27,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:27,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 16:46:27,230 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-03-12 16:46:27,230 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 16:46:27,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 16:46:27,230 INFO L82 PathProgramCache]: Analyzing trace with hash 4850396, now seen corresponding path program 1 times [2021-03-12 16:46:27,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 16:46:27,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883665758] [2021-03-12 16:46:27,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 16:46:27,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:46:27,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 16:46:27,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883665758] [2021-03-12 16:46:27,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 16:46:27,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-12 16:46:27,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7890574] [2021-03-12 16:46:27,303 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 16:46:27,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 16:46:27,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 16:46:27,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 16:46:27,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:46:27,303 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 16:46:27,304 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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) [2021-03-12 16:46:27,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-12 16:46:27,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:46:27,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:27,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:46:27,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:27,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-12 16:46:27,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:46:27,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-12 16:46:27,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:46:27,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:27,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:46:27,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:27,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 16:46:27,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 16:46:27,492 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-03-12 16:46:27,492 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 16:46:27,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 16:46:27,493 INFO L82 PathProgramCache]: Analyzing trace with hash 176915702, now seen corresponding path program 1 times [2021-03-12 16:46:27,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 16:46:27,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080842736] [2021-03-12 16:46:27,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 16:46:27,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:46:27,695 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 16:46:27,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080842736] [2021-03-12 16:46:27,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [402406676] [2021-03-12 16:46:27,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-03-12 16:46:27,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:46:27,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 32 conjunts are in the unsatisfiable core [2021-03-12 16:46:27,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 16:46:27,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-03-12 16:46:27,961 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 16:46:27,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-03-12 16:46:27,967 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-12 16:46:27,985 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 16:46:27,986 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-03-12 16:46:27,986 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:51, output treesize:35 [2021-03-12 16:46:28,070 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 16:46:28,070 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 16:46:28,070 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2021-03-12 16:46:28,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127149160] [2021-03-12 16:46:28,071 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-12 16:46:28,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 16:46:28,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-12 16:46:28,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-03-12 16:46:28,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:46:28,072 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 16:46:28,072 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 1.8125) internal successors, (29), 16 states have internal predecessors, (29), 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) [2021-03-12 16:46:28,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-12 16:46:28,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:46:28,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:28,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:46:28,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:28,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-12 16:46:28,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-12 16:46:28,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:46:28,453 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 32 [2021-03-12 16:46:28,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-12 16:46:28,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:46:28,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:28,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:46:28,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:28,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 16:46:28,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 16:46:28,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-12 16:46:29,011 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 16:46:29,012 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 16:46:29,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 16:46:29,012 INFO L82 PathProgramCache]: Analyzing trace with hash 242702758, now seen corresponding path program 2 times [2021-03-12 16:46:29,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 16:46:29,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386723452] [2021-03-12 16:46:29,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 16:46:29,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:46:29,089 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 16:46:29,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386723452] [2021-03-12 16:46:29,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822495666] [2021-03-12 16:46:29,089 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 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 [2021-03-12 16:46:29,127 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 16:46:29,127 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 16:46:29,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-12 16:46:29,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 16:46:29,228 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 16:46:29,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 16:46:29,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2021-03-12 16:46:29,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14238589] [2021-03-12 16:46:29,230 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 16:46:29,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 16:46:29,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 16:46:29,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-03-12 16:46:29,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:46:29,231 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 16:46:29,231 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 16:46:29,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-12 16:46:29,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:46:29,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:29,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:46:29,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:29,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-12 16:46:29,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-12 16:46:29,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-12 16:46:29,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:46:29,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-12 16:46:29,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:46:29,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:29,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:46:29,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:29,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 16:46:29,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 16:46:29,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-12 16:46:29,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 16:46:29,854 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 16:46:29,854 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 16:46:29,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 16:46:29,855 INFO L82 PathProgramCache]: Analyzing trace with hash -1039595668, now seen corresponding path program 3 times [2021-03-12 16:46:29,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 16:46:29,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830639783] [2021-03-12 16:46:29,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 16:46:29,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:46:30,082 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 16:46:30,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830639783] [2021-03-12 16:46:30,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090977450] [2021-03-12 16:46:30,083 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 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 [2021-03-12 16:46:30,115 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-12 16:46:30,116 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 16:46:30,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 36 conjunts are in the unsatisfiable core [2021-03-12 16:46:30,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 16:46:30,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-03-12 16:46:30,358 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 16:46:30,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-03-12 16:46:30,364 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-12 16:46:30,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-03-12 16:46:30,372 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-12 16:46:30,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-03-12 16:46:30,378 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-12 16:46:30,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-03-12 16:46:30,382 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-03-12 16:46:30,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-03-12 16:46:30,386 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-03-12 16:46:30,429 INFO L628 ElimStorePlain]: treesize reduction 52, result has 45.3 percent of original size [2021-03-12 16:46:30,431 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-03-12 16:46:30,431 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 1 variables, input treesize:159, output treesize:43 [2021-03-12 16:46:30,521 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 16:46:30,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 16:46:30,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2021-03-12 16:46:30,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889356611] [2021-03-12 16:46:30,528 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-03-12 16:46:30,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 16:46:30,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-03-12 16:46:30,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2021-03-12 16:46:30,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:46:30,529 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 16:46:30,529 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 1.65) internal successors, (33), 20 states have internal predecessors, (33), 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) [2021-03-12 16:46:30,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-12 16:46:30,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:46:30,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:30,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:46:30,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:30,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-12 16:46:30,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-12 16:46:30,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-12 16:46:30,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 16:46:30,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:46:31,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-12 16:46:31,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:46:31,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:31,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:46:31,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:31,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 16:46:31,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 16:46:31,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-12 16:46:31,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 16:46:31,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-12 16:46:31,923 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-03-12 16:46:31,923 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 16:46:31,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 16:46:31,924 INFO L82 PathProgramCache]: Analyzing trace with hash -2136141210, now seen corresponding path program 4 times [2021-03-12 16:46:31,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 16:46:31,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265451883] [2021-03-12 16:46:31,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 16:46:31,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:46:32,049 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 16:46:32,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265451883] [2021-03-12 16:46:32,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350744161] [2021-03-12 16:46:32,050 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 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 [2021-03-12 16:46:32,090 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 16:46:32,090 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 16:46:32,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 24 conjunts are in the unsatisfiable core [2021-03-12 16:46:32,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 16:46:32,308 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 16:46:32,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 16:46:32,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 13 [2021-03-12 16:46:32,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229807251] [2021-03-12 16:46:32,310 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-12 16:46:32,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 16:46:32,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-12 16:46:32,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-03-12 16:46:32,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:46:32,311 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 16:46:32,311 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 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) [2021-03-12 16:46:32,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-12 16:46:32,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:46:32,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:32,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:46:32,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:32,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-12 16:46:32,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-12 16:46:32,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-12 16:46:32,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 16:46:32,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-03-12 16:46:32,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:46:33,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-12 16:46:33,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:46:33,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:33,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:46:33,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:33,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 16:46:33,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 16:46:33,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-12 16:46:33,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 16:46:33,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-12 16:46:33,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-12 16:46:33,343 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2021-03-12 16:46:33,344 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 16:46:33,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 16:46:33,345 INFO L82 PathProgramCache]: Analyzing trace with hash 2052223004, now seen corresponding path program 5 times [2021-03-12 16:46:33,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 16:46:33,345 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948935007] [2021-03-12 16:46:33,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 16:46:33,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:46:33,476 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 16:46:33,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948935007] [2021-03-12 16:46:33,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884894107] [2021-03-12 16:46:33,477 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 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 [2021-03-12 16:46:33,512 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-03-12 16:46:33,512 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 16:46:33,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 24 conjunts are in the unsatisfiable core [2021-03-12 16:46:33,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 16:46:33,614 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 16:46:33,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 16:46:33,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2021-03-12 16:46:33,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093277060] [2021-03-12 16:46:33,615 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 16:46:33,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 16:46:33,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 16:46:33,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-03-12 16:46:33,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:46:33,616 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 16:46:33,616 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 16:46:33,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-12 16:46:33,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:46:33,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:33,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:46:33,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:33,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-12 16:46:33,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-12 16:46:33,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-12 16:46:33,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 16:46:33,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-03-12 16:46:33,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-12 16:46:33,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:46:34,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-12 16:46:34,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:46:34,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:34,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:46:34,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:34,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 16:46:34,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 16:46:34,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-12 16:46:34,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 16:46:34,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-12 16:46:34,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-12 16:46:34,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-12 16:46:34,339 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 16:46:34,340 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 16:46:34,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 16:46:34,340 INFO L82 PathProgramCache]: Analyzing trace with hash -779042890, now seen corresponding path program 6 times [2021-03-12 16:46:34,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 16:46:34,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117159459] [2021-03-12 16:46:34,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 16:46:34,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:46:35,059 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 16:46:35,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117159459] [2021-03-12 16:46:35,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852040789] [2021-03-12 16:46:35,059 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 16:46:35,111 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-03-12 16:46:35,111 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 16:46:35,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 37 conjunts are in the unsatisfiable core [2021-03-12 16:46:35,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 16:46:35,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-03-12 16:46:35,497 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 16:46:35,500 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-03-12 16:46:35,501 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-12 16:46:35,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-03-12 16:46:35,505 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-12 16:46:35,508 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-03-12 16:46:35,508 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-12 16:46:35,511 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-03-12 16:46:35,512 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-03-12 16:46:35,514 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-03-12 16:46:35,515 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-03-12 16:46:35,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-03-12 16:46:35,519 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-03-12 16:46:35,522 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-03-12 16:46:35,523 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-03-12 16:46:35,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-03-12 16:46:35,536 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-03-12 16:46:35,546 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-03-12 16:46:35,547 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-03-12 16:46:35,550 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-03-12 16:46:35,551 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-03-12 16:46:35,553 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-03-12 16:46:35,554 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-03-12 16:46:35,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-03-12 16:46:35,559 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-03-12 16:46:35,562 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-03-12 16:46:35,563 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-03-12 16:46:35,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-03-12 16:46:35,568 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-03-12 16:46:35,571 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-03-12 16:46:35,571 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-03-12 16:46:35,576 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-03-12 16:46:35,577 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-03-12 16:46:35,619 INFO L628 ElimStorePlain]: treesize reduction 64, result has 41.8 percent of original size [2021-03-12 16:46:35,621 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-03-12 16:46:35,621 INFO L247 ElimStorePlain]: Needed 18 recursive calls to eliminate 1 variables, input treesize:556, output treesize:46 [2021-03-12 16:46:35,719 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 16:46:35,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 16:46:35,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 23 [2021-03-12 16:46:35,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458846872] [2021-03-12 16:46:35,720 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-12 16:46:35,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 16:46:35,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-12 16:46:35,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506 [2021-03-12 16:46:35,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:46:35,721 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 16:46:35,721 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 1.608695652173913) internal successors, (37), 23 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 16:46:35,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-12 16:46:35,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:46:35,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:35,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:46:35,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:35,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-12 16:46:35,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-12 16:46:35,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-12 16:46:35,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 16:46:35,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-03-12 16:46:35,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-12 16:46:35,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-12 16:46:35,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:46:36,980 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2021-03-12 16:46:37,127 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 47 [2021-03-12 16:46:37,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-12 16:46:37,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:46:37,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:37,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:46:37,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:37,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 16:46:37,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 16:46:37,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-12 16:46:37,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 16:46:37,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-12 16:46:37,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-12 16:46:37,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-12 16:46:37,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-12 16:46:37,356 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable72 [2021-03-12 16:46:37,356 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 16:46:37,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 16:46:37,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1646027612, now seen corresponding path program 7 times [2021-03-12 16:46:37,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 16:46:37,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315715346] [2021-03-12 16:46:37,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 16:46:37,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:46:37,400 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-03-12 16:46:37,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315715346] [2021-03-12 16:46:37,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 16:46:37,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 16:46:37,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258168294] [2021-03-12 16:46:37,403 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 16:46:37,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 16:46:37,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 16:46:37,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-12 16:46:37,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:46:37,404 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 16:46:37,404 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 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) [2021-03-12 16:46:37,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-12 16:46:37,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:46:37,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:37,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:46:37,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:37,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-12 16:46:37,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-12 16:46:37,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-12 16:46:37,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 16:46:37,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-03-12 16:46:37,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-12 16:46:37,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-12 16:46:37,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-03-12 16:46:37,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:46:37,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-12 16:46:37,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:46:37,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:37,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:46:37,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:37,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 16:46:37,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 16:46:37,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-12 16:46:37,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 16:46:37,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-12 16:46:37,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-12 16:46:37,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-12 16:46:37,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-12 16:46:37,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-12 16:46:37,635 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-03-12 16:46:37,635 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 16:46:37,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 16:46:37,635 INFO L82 PathProgramCache]: Analyzing trace with hash -1658667930, now seen corresponding path program 8 times [2021-03-12 16:46:37,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 16:46:37,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855267998] [2021-03-12 16:46:37,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 16:46:37,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:46:37,680 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-03-12 16:46:37,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855267998] [2021-03-12 16:46:37,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 16:46:37,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 16:46:37,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897139785] [2021-03-12 16:46:37,681 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 16:46:37,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 16:46:37,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 16:46:37,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-12 16:46:37,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:46:37,682 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 16:46:37,682 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 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) [2021-03-12 16:46:37,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-12 16:46:37,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:46:37,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:37,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:46:37,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:37,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-12 16:46:37,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-12 16:46:37,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-12 16:46:37,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 16:46:37,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-03-12 16:46:37,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-12 16:46:37,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-12 16:46:37,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-03-12 16:46:37,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-12 16:46:37,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:46:38,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-12 16:46:38,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:46:38,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:38,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:46:38,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:38,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 16:46:38,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 16:46:38,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-12 16:46:38,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 16:46:38,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 16:46:38,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-12 16:46:38,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-12 16:46:38,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-12 16:46:38,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-12 16:46:38,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-12 16:46:38,427 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-03-12 16:46:38,436 INFO L202 PluginConnector]: Adding new model name-comparator-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.03 04:46:38 BasicIcfg [2021-03-12 16:46:38,436 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-12 16:46:38,437 INFO L168 Benchmark]: Toolchain (without parser) took 18710.60 ms. Allocated memory was 255.9 MB in the beginning and 654.3 MB in the end (delta: 398.5 MB). Free memory was 236.4 MB in the beginning and 276.0 MB in the end (delta: -39.5 MB). Peak memory consumption was 360.5 MB. Max. memory is 16.0 GB. [2021-03-12 16:46:38,437 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 255.9 MB. Free memory is still 237.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-12 16:46:38,437 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.84 ms. Allocated memory is still 255.9 MB. Free memory was 235.9 MB in the beginning and 234.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-12 16:46:38,437 INFO L168 Benchmark]: Boogie Preprocessor took 13.26 ms. Allocated memory is still 255.9 MB. Free memory was 234.4 MB in the beginning and 233.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-12 16:46:38,437 INFO L168 Benchmark]: RCFGBuilder took 538.08 ms. Allocated memory is still 255.9 MB. Free memory was 233.2 MB in the beginning and 218.0 MB in the end (delta: 15.2 MB). Peak memory consumption was 24.8 MB. Max. memory is 16.0 GB. [2021-03-12 16:46:38,438 INFO L168 Benchmark]: TraceAbstraction took 18124.20 ms. Allocated memory was 255.9 MB in the beginning and 654.3 MB in the end (delta: 398.5 MB). Free memory was 217.5 MB in the beginning and 276.0 MB in the end (delta: -58.5 MB). Peak memory consumption was 339.9 MB. Max. memory is 16.0 GB. [2021-03-12 16:46:38,438 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 255.9 MB. Free memory is still 237.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 26.84 ms. Allocated memory is still 255.9 MB. Free memory was 235.9 MB in the beginning and 234.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.26 ms. Allocated memory is still 255.9 MB. Free memory was 234.4 MB in the beginning and 233.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 538.08 ms. Allocated memory is still 255.9 MB. Free memory was 233.2 MB in the beginning and 218.0 MB in the end (delta: 15.2 MB). Peak memory consumption was 24.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 18124.20 ms. Allocated memory was 255.9 MB in the beginning and 654.3 MB in the end (delta: 398.5 MB). Free memory was 217.5 MB in the beginning and 276.0 MB in the end (delta: -58.5 MB). Peak memory consumption was 339.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 28294, positive: 24003, positive conditional: 24003, positive unconditional: 0, negative: 4291, negative conditional: 4291, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 24003, positive: 24003, positive conditional: 24003, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 24003, positive: 24003, positive conditional: 0, positive unconditional: 24003, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 72, positive: 72, positive conditional: 0, positive unconditional: 72, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 72, positive: 72, positive conditional: 0, positive unconditional: 72, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 24003, positive: 23931, positive conditional: 0, positive unconditional: 23931, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 72, unknown conditional: 0, unknown unconditional: 72] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 ], Maximal queried relation: 0, Independence queries for same thread: 4291 - PositiveResult [Line: 114]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18050.3ms, OverallIterations: 15, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.6ms, PartialOrderReductionTime: 9879.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 182, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 125.0ms SsaConstructionTime, 415.2ms SatisfiabilityAnalysisTime, 5072.6ms InterpolantComputationTime, 519 NumberOfCodeBlocks, 518 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 494 ConstructedInterpolants, 1 QuantifiedInterpolants, 4904 SizeOfPredicates, 93 NumberOfNonLiveVariables, 980 ConjunctsInSsa, 233 ConjunctsInUnsatCore, 25 InterpolantComputations, 6 PerfectInterpolantSequences, 70/162 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...