/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistent-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sorted.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 14:13:19,920 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 14:13:19,922 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 14:13:19,958 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 14:13:20,028 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistent-NoLbe-Lockstep.epf [2021-07-14 14:13:20,062 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 14:13:20,063 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 14:13:20,063 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 14:13:20,063 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 14:13:20,064 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 14:13:20,064 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 14:13:20,064 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 14:13:20,065 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 14:13:20,065 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 14:13:20,065 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 14:13:20,065 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 14:13:20,065 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 14:13:20,065 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 14:13:20,066 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 14:13:20,066 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 14:13:20,066 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 14:13:20,066 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 14:13:20,066 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 14:13:20,066 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 14:13:20,066 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 14:13:20,067 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 14:13:20,067 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 14:13:20,067 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 14:13:20,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 14:13:20,067 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 14:13:20,067 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 14:13:20,067 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 14:13:20,068 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 14:13:20,068 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-07-14 14:13:20,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 14:13:20,068 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 14:13:20,068 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 14:13:20,068 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 14:13:20,069 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES [2021-07-14 14:13:20,069 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 14:13:20,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 14:13:20,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 14:13:20,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 14:13:20,361 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 14:13:20,363 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 14:13:20,364 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sorted.wvr.bpl [2021-07-14 14:13:20,364 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sorted.wvr.bpl' [2021-07-14 14:13:20,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 14:13:20,717 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 14:13:20,718 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 14:13:20,718 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 14:13:20,718 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 14:13:20,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:13:20" (1/1) ... [2021-07-14 14:13:20,732 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:13:20" (1/1) ... [2021-07-14 14:13:20,738 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 14:13:20,739 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 14:13:20,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 14:13:20,739 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 14:13:20,745 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:13:20" (1/1) ... [2021-07-14 14:13:20,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:13:20" (1/1) ... [2021-07-14 14:13:20,746 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:13:20" (1/1) ... [2021-07-14 14:13:20,747 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:13:20" (1/1) ... [2021-07-14 14:13:20,748 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:13:20" (1/1) ... [2021-07-14 14:13:20,750 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:13:20" (1/1) ... [2021-07-14 14:13:20,751 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:13:20" (1/1) ... [2021-07-14 14:13:20,752 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 14:13:20,754 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 14:13:20,754 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 14:13:20,754 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 14:13:20,756 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:13:20" (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 [2021-07-14 14:13:20,829 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 14:13:20,829 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 14:13:20,829 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 14:13:20,829 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 14:13:20,829 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 14:13:20,829 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 14:13:20,829 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 14:13:20,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 14:13:20,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 14:13:20,830 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-14 14:13:20,830 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-14 14:13:20,830 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-14 14:13:20,831 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 14:13:21,078 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 14:13:21,079 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-14 14:13:21,081 INFO L202 PluginConnector]: Adding new model sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:13:21 BoogieIcfgContainer [2021-07-14 14:13:21,081 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 14:13:21,083 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 14:13:21,083 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 14:13:21,085 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 14:13:21,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:13:20" (1/2) ... [2021-07-14 14:13:21,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f3896ec and model type sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:13:21, skipping insertion in model container [2021-07-14 14:13:21,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:13:21" (2/2) ... [2021-07-14 14:13:21,088 INFO L111 eAbstractionObserver]: Analyzing ICFG sorted.wvr.bpl [2021-07-14 14:13:21,095 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 14:13:21,096 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 14:13:21,096 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 14:13:21,097 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 14:13:21,173 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-07-14 14:13:21,208 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-14 14:13:21,260 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 14:13:21,261 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 14:13:21,261 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 14:13:21,261 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 14:13:21,262 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 14:13:21,262 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 14:13:21,262 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 14:13:21,262 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 14:13:21,371 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 14:13:21,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 14:13:21,379 INFO L82 PathProgramCache]: Analyzing trace with hash -252146076, now seen corresponding path program 1 times [2021-07-14 14:13:21,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 14:13:21,388 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815035243] [2021-07-14 14:13:21,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 14:13:21,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 14:13:21,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 14:13:21,610 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 14:13:21,610 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815035243] [2021-07-14 14:13:21,610 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815035243] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 14:13:21,611 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 14:13:21,611 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-14 14:13:21,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374327777] [2021-07-14 14:13:21,614 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-14 14:13:21,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 14:13:21,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-14 14:13:21,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-07-14 14:13:21,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 14:13:21,627 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 14:13:21,629 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 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) [2021-07-14 14:13:21,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 14:13:21,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 14:13:21,650 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 14:13:21,650 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 14:13:21,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 14:13:21,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1086491390, now seen corresponding path program 1 times [2021-07-14 14:13:21,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 14:13:21,652 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49289967] [2021-07-14 14:13:21,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 14:13:21,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 14:13:21,734 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 14:13:21,734 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 14:13:21,735 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49289967] [2021-07-14 14:13:21,735 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49289967] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 14:13:21,735 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864792097] [2021-07-14 14:13:21,735 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 [2021-07-14 14:13:21,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 14:13:21,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-14 14:13:21,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 14:13:22,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 14:13:22,003 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864792097] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 14:13:22,003 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 14:13:22,004 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 10 [2021-07-14 14:13:22,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703351523] [2021-07-14 14:13:22,007 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-14 14:13:22,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 14:13:22,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-14 14:13:22,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-07-14 14:13:22,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 14:13:22,015 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 14:13:22,015 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 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) [2021-07-14 14:13:22,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 14:13:22,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 14:13:22,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 14:13:22,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:22,402 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 14:13:22,402 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 14:13:22,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 14:13:22,403 INFO L82 PathProgramCache]: Analyzing trace with hash -163513564, now seen corresponding path program 1 times [2021-07-14 14:13:22,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 14:13:22,403 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447195135] [2021-07-14 14:13:22,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 14:13:22,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 14:13:22,560 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 14:13:22,561 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 14:13:22,561 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447195135] [2021-07-14 14:13:22,561 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447195135] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 14:13:22,561 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838902559] [2021-07-14 14:13:22,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 14:13:22,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 14:13:22,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-14 14:13:22,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 14:13:22,837 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 14:13:22,837 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838902559] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 14:13:22,837 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 14:13:22,837 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-07-14 14:13:22,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599827148] [2021-07-14 14:13:22,838 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-14 14:13:22,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 14:13:22,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-14 14:13:22,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2021-07-14 14:13:22,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 14:13:22,842 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 14:13:22,842 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 3.357142857142857) internal successors, (47), 14 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 14:13:22,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 14:13:22,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:22,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 14:13:22,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 14:13:22,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:22,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 14:13:23,124 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 14:13:23,125 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 14:13:23,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 14:13:23,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1269472574, now seen corresponding path program 2 times [2021-07-14 14:13:23,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 14:13:23,126 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239386146] [2021-07-14 14:13:23,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 14:13:23,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 14:13:23,250 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 14:13:23,251 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 14:13:23,251 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239386146] [2021-07-14 14:13:23,251 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239386146] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 14:13:23,251 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787605169] [2021-07-14 14:13:23,251 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 14:13:23,298 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 14:13:23,298 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 14:13:23,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-14 14:13:23,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 14:13:23,431 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 14:13:23,431 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [787605169] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 14:13:23,431 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 14:13:23,431 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-07-14 14:13:23,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976291400] [2021-07-14 14:13:23,432 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-14 14:13:23,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 14:13:23,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-14 14:13:23,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-07-14 14:13:23,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 14:13:23,433 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 14:13:23,433 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 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) [2021-07-14 14:13:23,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 14:13:23,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:23,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 14:13:23,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 14:13:23,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 14:13:23,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:23,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 14:13:23,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 14:13:23,865 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 14:13:23,865 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 14:13:23,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 14:13:23,866 INFO L82 PathProgramCache]: Analyzing trace with hash 85227748, now seen corresponding path program 3 times [2021-07-14 14:13:23,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 14:13:23,866 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079049908] [2021-07-14 14:13:23,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 14:13:23,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 14:13:24,057 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 14:13:24,057 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 14:13:24,059 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079049908] [2021-07-14 14:13:24,059 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079049908] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 14:13:24,059 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162603894] [2021-07-14 14:13:24,059 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 14:13:24,098 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-07-14 14:13:24,098 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 14:13:24,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 20 conjunts are in the unsatisfiable core [2021-07-14 14:13:24,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 14:13:24,971 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 14:13:24,971 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [162603894] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 14:13:24,971 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 14:13:24,971 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13] total 21 [2021-07-14 14:13:24,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780058677] [2021-07-14 14:13:24,972 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-14 14:13:24,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 14:13:24,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-14 14:13:24,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2021-07-14 14:13:24,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 14:13:24,973 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 14:13:24,973 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 21 states have internal predecessors, (56), 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) [2021-07-14 14:13:24,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 14:13:24,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:24,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 14:13:24,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 14:13:24,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 14:13:25,239 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 39 [2021-07-14 14:13:25,595 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 44 [2021-07-14 14:13:25,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 14:13:25,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:25,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 14:13:25,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 14:13:25,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 14:13:25,916 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-07-14 14:13:25,917 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 14:13:25,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 14:13:25,917 INFO L82 PathProgramCache]: Analyzing trace with hash 1297080706, now seen corresponding path program 4 times [2021-07-14 14:13:25,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 14:13:25,917 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789129569] [2021-07-14 14:13:25,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 14:13:25,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 14:13:26,006 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 14:13:26,006 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 14:13:26,007 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789129569] [2021-07-14 14:13:26,008 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789129569] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 14:13:26,008 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915462092] [2021-07-14 14:13:26,008 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 14:13:26,036 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 14:13:26,036 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 14:13:26,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-14 14:13:26,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 14:13:26,205 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 14:13:26,205 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915462092] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 14:13:26,205 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 14:13:26,205 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2021-07-14 14:13:26,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91379837] [2021-07-14 14:13:26,206 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-14 14:13:26,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 14:13:26,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-14 14:13:26,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2021-07-14 14:13:26,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 14:13:26,207 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 14:13:26,207 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.0) internal successors, (51), 17 states have internal predecessors, (51), 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) [2021-07-14 14:13:26,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 14:13:26,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:26,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 14:13:26,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 14:13:26,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 14:13:26,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 14:13:26,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 14:13:26,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:26,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 14:13:26,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 14:13:26,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 14:13:26,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 14:13:26,720 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 14:13:26,721 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 14:13:26,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 14:13:26,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1231701924, now seen corresponding path program 5 times [2021-07-14 14:13:26,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 14:13:26,721 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461299607] [2021-07-14 14:13:26,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 14:13:26,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 14:13:27,014 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 14:13:27,015 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 14:13:27,015 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461299607] [2021-07-14 14:13:27,015 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461299607] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 14:13:27,015 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489679232] [2021-07-14 14:13:27,015 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 14:13:27,072 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-07-14 14:13:27,072 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 14:13:27,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 25 conjunts are in the unsatisfiable core [2021-07-14 14:13:27,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 14:13:27,539 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 14:13:27,539 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489679232] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 14:13:27,539 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 14:13:27,539 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2021-07-14 14:13:27,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600141666] [2021-07-14 14:13:27,540 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-07-14 14:13:27,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 14:13:27,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-07-14 14:13:27,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2021-07-14 14:13:27,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 14:13:27,541 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 14:13:27,541 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 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) [2021-07-14 14:13:27,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 14:13:27,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:27,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 14:13:27,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 14:13:27,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 14:13:27,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 14:13:27,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 14:13:27,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 14:13:27,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:27,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 14:13:27,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 14:13:27,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 14:13:27,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 14:13:27,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 14:13:27,934 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 14:13:27,934 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 14:13:27,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 14:13:27,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1100730046, now seen corresponding path program 6 times [2021-07-14 14:13:27,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 14:13:27,935 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240533602] [2021-07-14 14:13:27,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 14:13:27,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 14:13:28,033 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 14:13:28,034 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 14:13:28,034 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240533602] [2021-07-14 14:13:28,036 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240533602] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 14:13:28,036 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359200587] [2021-07-14 14:13:28,037 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 14:13:28,077 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-07-14 14:13:28,077 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 14:13:28,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-14 14:13:28,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 14:13:28,322 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 14:13:28,323 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359200587] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 14:13:28,323 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 14:13:28,323 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2021-07-14 14:13:28,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074995929] [2021-07-14 14:13:28,324 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-14 14:13:28,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 14:13:28,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-14 14:13:28,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2021-07-14 14:13:28,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 14:13:28,325 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 14:13:28,325 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 21 states have internal predecessors, (59), 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) [2021-07-14 14:13:28,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 14:13:28,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:28,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 14:13:28,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 14:13:28,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 14:13:28,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 14:13:28,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 14:13:28,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 14:13:28,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 14:13:28,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:28,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 14:13:28,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 14:13:28,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 14:13:28,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 14:13:28,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 14:13:28,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 14:13:28,958 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-07-14 14:13:28,958 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 14:13:28,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 14:13:28,958 INFO L82 PathProgramCache]: Analyzing trace with hash -961960092, now seen corresponding path program 7 times [2021-07-14 14:13:28,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 14:13:28,959 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897996132] [2021-07-14 14:13:28,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 14:13:28,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 14:13:29,485 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 14:13:29,485 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 14:13:29,485 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897996132] [2021-07-14 14:13:29,485 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897996132] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 14:13:29,485 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893242023] [2021-07-14 14:13:29,486 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 14:13:29,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 14:13:29,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 29 conjunts are in the unsatisfiable core [2021-07-14 14:13:29,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 14:13:30,241 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 14:13:30,241 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [893242023] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 14:13:30,242 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 14:13:30,242 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2021-07-14 14:13:30,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272413704] [2021-07-14 14:13:30,242 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-14 14:13:30,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 14:13:30,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-14 14:13:30,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=561, Unknown=0, NotChecked=0, Total=650 [2021-07-14 14:13:30,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 14:13:30,243 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 14:13:30,243 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 2.730769230769231) internal successors, (71), 26 states have internal predecessors, (71), 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) [2021-07-14 14:13:30,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 14:13:30,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:30,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 14:13:30,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 14:13:30,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 14:13:30,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 14:13:30,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 14:13:30,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 14:13:30,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 14:13:30,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 14:13:30,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:30,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 14:13:30,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 14:13:30,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 14:13:30,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 14:13:30,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 14:13:30,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 14:13:30,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:30,724 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 14:13:30,725 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 14:13:30,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 14:13:30,725 INFO L82 PathProgramCache]: Analyzing trace with hash -214330878, now seen corresponding path program 8 times [2021-07-14 14:13:30,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 14:13:30,725 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159810342] [2021-07-14 14:13:30,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 14:13:30,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 14:13:30,847 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 9 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 14:13:30,847 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 14:13:30,847 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159810342] [2021-07-14 14:13:30,847 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159810342] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 14:13:30,847 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086886806] [2021-07-14 14:13:30,847 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 14:13:30,882 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 14:13:30,882 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 14:13:30,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-14 14:13:30,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 14:13:31,183 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 14:13:31,183 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086886806] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 14:13:31,183 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 14:13:31,183 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2021-07-14 14:13:31,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924529395] [2021-07-14 14:13:31,184 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-14 14:13:31,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 14:13:31,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-14 14:13:31,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=483, Unknown=0, NotChecked=0, Total=600 [2021-07-14 14:13:31,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 14:13:31,185 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 14:13:31,185 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.68) internal successors, (67), 25 states have internal predecessors, (67), 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) [2021-07-14 14:13:31,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 14:13:31,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:31,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 14:13:31,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 14:13:31,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 14:13:31,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 14:13:31,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 14:13:31,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 14:13:31,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:31,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 14:13:31,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 14:13:31,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:31,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 14:13:31,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 14:13:31,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 14:13:31,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 14:13:31,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 14:13:31,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 14:13:31,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:31,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 14:13:31,990 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 14:13:31,990 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 14:13:31,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 14:13:31,991 INFO L82 PathProgramCache]: Analyzing trace with hash 464115748, now seen corresponding path program 9 times [2021-07-14 14:13:31,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 14:13:31,991 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621713224] [2021-07-14 14:13:31,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 14:13:32,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 14:13:32,394 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-07-14 14:13:32,687 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 14:13:32,687 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 14:13:32,687 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621713224] [2021-07-14 14:13:32,687 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621713224] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 14:13:32,687 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379185909] [2021-07-14 14:13:32,687 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 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 [2021-07-14 14:13:32,724 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-07-14 14:13:32,724 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 14:13:32,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 42 conjunts are in the unsatisfiable core [2021-07-14 14:13:32,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 14:13:33,943 WARN L205 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 55 [2021-07-14 14:13:34,288 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-07-14 14:13:34,835 WARN L205 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2021-07-14 14:13:35,390 WARN L205 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 79 [2021-07-14 14:13:35,936 WARN L205 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2021-07-14 14:13:36,752 WARN L205 SmtUtils]: Spent 648.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 91 [2021-07-14 14:13:37,211 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-07-14 14:13:37,511 INFO L446 ElimStorePlain]: Different costs {5=[v_prenex_11], 9=[A], 13=[v_prenex_12], 18=[v_prenex_9], 21=[v_prenex_8, v_prenex_10]} [2021-07-14 14:13:37,523 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-14 14:13:37,524 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 14:13:37,882 WARN L205 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 116 [2021-07-14 14:13:37,883 INFO L628 ElimStorePlain]: treesize reduction 210, result has 65.5 percent of original size [2021-07-14 14:13:37,883 INFO L518 ElimStorePlain]: Eliminatee A vanished before elimination [2021-07-14 14:13:37,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:37,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:37,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:37,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:37,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:37,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:37,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:37,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:37,937 INFO L354 Elim1Store]: treesize reduction 26, result has 44.7 percent of original size [2021-07-14 14:13:37,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 23 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 5 case distinctions, treesize of input 45 treesize of output 39 [2021-07-14 14:13:37,949 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-14 14:13:38,091 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-07-14 14:13:38,092 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 14:13:38,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,133 INFO L354 Elim1Store]: treesize reduction 14, result has 51.7 percent of original size [2021-07-14 14:13:38,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 33 [2021-07-14 14:13:38,137 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 14:13:38,269 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-07-14 14:13:38,269 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 14:13:38,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,330 INFO L354 Elim1Store]: treesize reduction 24, result has 57.9 percent of original size [2021-07-14 14:13:38,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 30 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 54 [2021-07-14 14:13:38,351 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-14 14:13:38,486 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-07-14 14:13:38,486 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 14:13:38,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,563 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 14:13:38,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 30 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 78 [2021-07-14 14:13:38,604 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-07-14 14:13:38,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:38,653 INFO L354 Elim1Store]: treesize reduction 34, result has 40.4 percent of original size [2021-07-14 14:13:38,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 30 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 44 [2021-07-14 14:13:38,657 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-07-14 14:13:38,767 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-07-14 14:13:38,767 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 14:13:38,788 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 6 dim-1 vars, End of recursive call: and 6 xjuncts. [2021-07-14 14:13:38,789 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 12 variables, input treesize:652, output treesize:143 [2021-07-14 14:13:38,998 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 21 [2021-07-14 14:13:39,165 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 14:13:39,165 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379185909] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 14:13:39,165 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 14:13:39,166 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 23] total 37 [2021-07-14 14:13:39,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665382185] [2021-07-14 14:13:39,166 INFO L462 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-07-14 14:13:39,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 14:13:39,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-07-14 14:13:39,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=1200, Unknown=0, NotChecked=0, Total=1332 [2021-07-14 14:13:39,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 14:13:39,168 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 14:13:39,168 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 2.1621621621621623) internal successors, (80), 37 states have internal predecessors, (80), 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) [2021-07-14 14:13:39,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 14:13:39,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:39,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 14:13:39,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 14:13:39,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 14:13:39,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 14:13:39,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 14:13:39,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 14:13:39,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:39,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 14:13:39,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 14:13:40,064 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 44 [2021-07-14 14:13:40,734 WARN L205 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 85 [2021-07-14 14:13:41,553 WARN L205 SmtUtils]: Spent 709.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 81 [2021-07-14 14:13:42,126 WARN L205 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 103 [2021-07-14 14:13:42,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 14:13:42,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:42,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 14:13:42,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 14:13:42,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 14:13:42,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 14:13:42,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 14:13:42,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 14:13:42,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:42,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 14:13:42,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 14:13:42,545 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-07-14 14:13:42,545 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 14:13:42,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 14:13:42,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1390887874, now seen corresponding path program 10 times [2021-07-14 14:13:42,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 14:13:42,546 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008704111] [2021-07-14 14:13:42,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 14:13:42,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 14:13:42,672 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 16 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 14:13:42,672 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 14:13:42,672 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008704111] [2021-07-14 14:13:42,672 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008704111] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 14:13:42,672 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086323198] [2021-07-14 14:13:42,672 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 14:13:42,710 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 14:13:42,711 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 14:13:42,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 15 conjunts are in the unsatisfiable core [2021-07-14 14:13:42,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 14:13:43,004 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 25 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 14:13:43,004 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086323198] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 14:13:43,005 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 14:13:43,005 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 29 [2021-07-14 14:13:43,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106456001] [2021-07-14 14:13:43,005 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-07-14 14:13:43,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 14:13:43,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-07-14 14:13:43,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=656, Unknown=0, NotChecked=0, Total=812 [2021-07-14 14:13:43,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 14:13:43,006 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 14:13:43,006 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.586206896551724) internal successors, (75), 29 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 14:13:43,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 14:13:43,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:43,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 14:13:43,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 14:13:43,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 14:13:43,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 14:13:43,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 14:13:43,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 14:13:43,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:43,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 14:13:43,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 14:13:43,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 14:13:43,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 14:13:43,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:43,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 14:13:43,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 14:13:43,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 14:13:43,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 14:13:43,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 14:13:43,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 14:13:43,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:43,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 14:13:43,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 14:13:43,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 14:13:43,944 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2021-07-14 14:13:43,945 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 14:13:43,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 14:13:43,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1186077156, now seen corresponding path program 11 times [2021-07-14 14:13:43,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 14:13:43,945 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134856161] [2021-07-14 14:13:43,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 14:13:43,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 14:13:44,702 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 14:13:44,703 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 14:13:44,703 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134856161] [2021-07-14 14:13:44,703 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134856161] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 14:13:44,703 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328561154] [2021-07-14 14:13:44,703 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 14:13:44,745 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-07-14 14:13:44,746 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 14:13:44,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 41 conjunts are in the unsatisfiable core [2021-07-14 14:13:44,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 14:13:45,876 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 14:13:45,876 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328561154] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 14:13:45,876 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 14:13:45,876 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2021-07-14 14:13:45,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081651413] [2021-07-14 14:13:45,878 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-07-14 14:13:45,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 14:13:45,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-07-14 14:13:45,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1012, Unknown=0, NotChecked=0, Total=1122 [2021-07-14 14:13:45,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 14:13:45,880 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 14:13:45,881 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.5588235294117645) internal successors, (87), 34 states have internal predecessors, (87), 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) [2021-07-14 14:13:45,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 14:13:45,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:45,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 14:13:45,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 14:13:45,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 14:13:45,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 14:13:45,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 14:13:45,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 14:13:45,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:45,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 14:13:45,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 14:13:45,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-07-14 14:13:45,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 14:13:46,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 14:13:46,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:46,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 14:13:46,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 14:13:46,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 14:13:46,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 14:13:46,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 14:13:46,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 14:13:46,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:46,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 14:13:46,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 14:13:46,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 14:13:46,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 14:13:46,565 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2021-07-14 14:13:46,565 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 14:13:46,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 14:13:46,565 INFO L82 PathProgramCache]: Analyzing trace with hash -2081126782, now seen corresponding path program 12 times [2021-07-14 14:13:46,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 14:13:46,566 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253328234] [2021-07-14 14:13:46,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 14:13:46,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 14:13:46,722 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 25 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 14:13:46,723 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 14:13:46,723 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253328234] [2021-07-14 14:13:46,723 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253328234] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 14:13:46,723 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455151311] [2021-07-14 14:13:46,723 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 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 14:13:46,777 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-07-14 14:13:46,777 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 14:13:46,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-14 14:13:46,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 14:13:47,119 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 36 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 14:13:47,120 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1455151311] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 14:13:47,120 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 14:13:47,120 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 33 [2021-07-14 14:13:47,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655959178] [2021-07-14 14:13:47,120 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-07-14 14:13:47,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 14:13:47,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-07-14 14:13:47,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=855, Unknown=0, NotChecked=0, Total=1056 [2021-07-14 14:13:47,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 14:13:47,121 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 14:13:47,122 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 2.515151515151515) internal successors, (83), 33 states have internal predecessors, (83), 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) [2021-07-14 14:13:47,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 14:13:47,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:47,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 14:13:47,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 14:13:47,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 14:13:47,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 14:13:47,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 14:13:47,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 14:13:47,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:47,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 14:13:47,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 14:13:47,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-07-14 14:13:47,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 14:13:47,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 14:13:47,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 14:13:47,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:47,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 14:13:47,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 14:13:47,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 14:13:47,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 14:13:47,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 14:13:47,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 14:13:47,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:47,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 14:13:47,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 14:13:47,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 14:13:47,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 14:13:47,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-14 14:13:48,054 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 14:13:48,055 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 14:13:48,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 14:13:48,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1769581732, now seen corresponding path program 13 times [2021-07-14 14:13:48,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 14:13:48,055 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084716874] [2021-07-14 14:13:48,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 14:13:48,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 14:13:48,933 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 14:13:48,934 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 14:13:48,934 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084716874] [2021-07-14 14:13:48,934 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084716874] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 14:13:48,934 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115797941] [2021-07-14 14:13:48,934 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 14:13:48,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 14:13:48,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 47 conjunts are in the unsatisfiable core [2021-07-14 14:13:48,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 14:13:50,439 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 14:13:50,439 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115797941] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 14:13:50,439 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 14:13:50,439 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 38 [2021-07-14 14:13:50,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779574858] [2021-07-14 14:13:50,440 INFO L462 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-07-14 14:13:50,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 14:13:50,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-07-14 14:13:50,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1287, Unknown=0, NotChecked=0, Total=1406 [2021-07-14 14:13:50,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 14:13:50,441 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 14:13:50,441 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 38 states, 38 states have (on average 2.5) internal successors, (95), 38 states have internal predecessors, (95), 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) [2021-07-14 14:13:50,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 14:13:50,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:50,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 14:13:50,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 14:13:50,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 14:13:50,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 14:13:50,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 14:13:50,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 14:13:50,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:50,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 14:13:50,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 14:13:50,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-07-14 14:13:50,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 14:13:50,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-07-14 14:13:50,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 14:13:51,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 14:13:51,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:51,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 14:13:51,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 14:13:51,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 14:13:51,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 14:13:51,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 14:13:51,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 14:13:51,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:51,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 14:13:51,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 14:13:51,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 14:13:51,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 14:13:51,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-14 14:13:51,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 14:13:51,309 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable123 [2021-07-14 14:13:51,309 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 14:13:51,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 14:13:51,309 INFO L82 PathProgramCache]: Analyzing trace with hash 811113026, now seen corresponding path program 14 times [2021-07-14 14:13:51,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 14:13:51,309 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697529582] [2021-07-14 14:13:51,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 14:13:51,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 14:13:51,484 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 36 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 14:13:51,485 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 14:13:51,485 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697529582] [2021-07-14 14:13:51,485 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697529582] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 14:13:51,485 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1551950222] [2021-07-14 14:13:51,485 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 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 14:13:51,516 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 14:13:51,516 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 14:13:51,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 19 conjunts are in the unsatisfiable core [2021-07-14 14:13:51,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 14:13:51,997 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 49 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 14:13:51,998 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1551950222] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 14:13:51,998 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 14:13:51,998 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 37 [2021-07-14 14:13:51,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397619587] [2021-07-14 14:13:51,998 INFO L462 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-07-14 14:13:51,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 14:13:51,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-07-14 14:13:51,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=252, Invalid=1080, Unknown=0, NotChecked=0, Total=1332 [2021-07-14 14:13:52,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 14:13:52,000 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 14:13:52,000 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 2.4594594594594597) internal successors, (91), 37 states have internal predecessors, (91), 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) [2021-07-14 14:13:52,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 14:13:52,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:52,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 14:13:52,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 14:13:52,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 14:13:52,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 14:13:52,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 14:13:52,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 14:13:52,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:52,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 14:13:52,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 14:13:52,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-07-14 14:13:52,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 14:13:52,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-07-14 14:13:52,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 14:13:52,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 14:13:52,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 14:13:52,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:52,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 14:13:52,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 14:13:52,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 14:13:52,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 14:13:52,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 14:13:52,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 14:13:52,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 14:13:52,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 14:13:52,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 14:13:52,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 14:13:52,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 14:13:52,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-14 14:13:52,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 14:13:52,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-07-14 14:13:53,190 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 14:13:53,190 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 14:13:53,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 14:13:53,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1926770588, now seen corresponding path program 15 times [2021-07-14 14:13:53,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 14:13:53,191 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480028480] [2021-07-14 14:13:53,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 14:13:53,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 14:13:54,206 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 14:13:54,206 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 14:13:54,206 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480028480] [2021-07-14 14:13:54,206 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480028480] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 14:13:54,206 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095196213] [2021-07-14 14:13:54,206 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 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 14:13:54,247 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-07-14 14:13:54,248 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 14:13:54,249 WARN L261 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 60 conjunts are in the unsatisfiable core [2021-07-14 14:13:54,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 14:13:57,359 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-14 14:13:57,360 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 14:13:57,368 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-14 14:13:57,369 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-14 14:13:57,377 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-14 14:13:57,378 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 14:13:57,386 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-14 14:13:57,387 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-14 14:13:57,396 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-14 14:13:57,396 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-07-14 14:13:57,402 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-14 14:13:57,406 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-07-14 14:13:57,412 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-14 14:13:57,413 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-07-14 14:13:57,419 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-14 14:13:57,419 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-07-14 14:13:57,427 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-14 14:13:57,428 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-07-14 14:13:57,436 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-14 14:13:57,437 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-07-14 14:13:57,446 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-14 14:13:57,447 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-07-14 14:13:57,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:57,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:57,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:57,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:57,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:57,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:57,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:57,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:57,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:57,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:57,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:57,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:57,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:57,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:57,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:57,796 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 123 [2021-07-14 14:13:57,796 INFO L354 Elim1Store]: treesize reduction 54, result has 81.2 percent of original size [2021-07-14 14:13:57,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 36 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 30 case distinctions, treesize of input 76 treesize of output 260 [2021-07-14 14:13:59,129 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 405 DAG size of output: 318 [2021-07-14 14:13:59,952 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-07-14 14:13:59,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:59,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:59,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:13:59,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,094 INFO L354 Elim1Store]: treesize reduction 90, result has 33.3 percent of original size [2021-07-14 14:14:00,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 40 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 66 treesize of output 72 [2021-07-14 14:14:00,099 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-07-14 14:14:00,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,178 INFO L354 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2021-07-14 14:14:00,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 42 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 28 [2021-07-14 14:14:00,179 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-07-14 14:14:00,186 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-14 14:14:00,187 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-07-14 14:14:00,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 14:14:00,459 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2021-07-14 14:14:00,460 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 14:14:00,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 56 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 35 case distinctions, treesize of input 97 treesize of output 371 [2021-07-14 14:14:01,163 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 326 DAG size of output: 318 [2021-07-14 14:14:01,382 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 362 DAG size of output: 355 [2021-07-14 14:14:01,565 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 362 DAG size of output: 355 [2021-07-14 14:14:01,774 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 394 DAG size of output: 389 [2021-07-14 14:14:02,713 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 449 DAG size of output: 430 [2021-07-14 14:14:02,928 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 351 DAG size of output: 450 [2021-07-14 14:14:03,809 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 239 [2021-07-14 14:14:04,122 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 441 DAG size of output: 382 [2021-07-14 14:14:04,604 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 597 DAG size of output: 524 [2021-07-14 14:14:05,107 WARN L205 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 765 DAG size of output: 696 [2021-07-14 14:14:06,493 WARN L205 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1006 DAG size of output: 941 [2021-07-14 14:14:07,450 WARN L205 SmtUtils]: Spent 952.00 ms on a formula simplification. DAG size of input: 1006 DAG size of output: 941 [2021-07-14 14:14:40,858 WARN L205 SmtUtils]: Spent 33.40 s on a formula simplification. DAG size of input: 1011 DAG size of output: 868 [2021-07-14 14:14:41,153 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 868 [2021-07-14 14:14:42,634 WARN L205 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 380 DAG size of output: 451 [2021-07-14 14:14:43,429 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 218 [2021-07-14 14:14:44,171 WARN L205 SmtUtils]: Spent 740.00 ms on a formula simplification. DAG size of input: 445 DAG size of output: 416 [2021-07-14 14:14:49,673 WARN L205 SmtUtils]: Spent 5.50 s on a formula simplification. DAG size of input: 559 DAG size of output: 467 [2021-07-14 14:14:49,804 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 645 DAG size of output: 645 [2021-07-14 14:14:50,579 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 275 DAG size of output: 262 [2021-07-14 14:14:51,073 WARN L205 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 390 DAG size of output: 366 [2021-07-14 14:14:51,514 WARN L205 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 479 DAG size of output: 562 [2021-07-14 14:14:52,223 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 362 DAG size of output: 228 [2021-07-14 14:14:52,498 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 492 DAG size of output: 341 [2021-07-14 14:14:52,857 WARN L205 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 669 DAG size of output: 444 [2021-07-14 14:14:53,550 WARN L205 SmtUtils]: Spent 689.00 ms on a formula simplification. DAG size of input: 938 DAG size of output: 622 [2021-07-14 14:14:54,952 WARN L205 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1296 DAG size of output: 843 [2021-07-14 14:14:56,276 WARN L205 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1296 DAG size of output: 843 [2021-07-14 14:14:57,762 WARN L205 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 1301 DAG size of output: 849 [2021-07-14 14:15:00,176 WARN L205 SmtUtils]: Spent 2.41 s on a formula simplification. DAG size of input: 851 DAG size of output: 982 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown