/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/counter-queue.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-06 05:17:38,975 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-06 05:17:38,976 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-06 05:17:38,995 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-06 05:17:39,002 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-06 05:17:39,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-06 05:17:39,004 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-06 05:17:39,004 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-06 05:17:39,005 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-06 05:17:39,006 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-06 05:17:39,007 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-06 05:17:39,008 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-06 05:17:39,009 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-06 05:17:39,010 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-06 05:17:39,010 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-06 05:17:39,011 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-06 05:17:39,013 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-06 05:17:39,021 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-DelaySleep-NoLbe.epf [2021-06-06 05:17:39,045 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-06 05:17:39,045 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-06 05:17:39,045 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-06 05:17:39,045 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-06 05:17:39,047 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-06 05:17:39,047 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-06 05:17:39,047 INFO L138 SettingsManager]: * Use SBE=true [2021-06-06 05:17:39,047 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-06 05:17:39,048 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-06 05:17:39,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-06 05:17:39,048 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-06 05:17:39,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-06 05:17:39,048 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-06 05:17:39,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-06 05:17:39,049 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-06 05:17:39,049 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-06 05:17:39,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-06 05:17:39,049 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-06 05:17:39,049 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-06 05:17:39,049 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-06 05:17:39,049 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-06 05:17:39,049 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-06 05:17:39,050 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-06 05:17:39,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 05:17:39,050 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-06 05:17:39,050 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-06 05:17:39,050 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-06 05:17:39,050 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-06 05:17:39,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-06 05:17:39,050 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-06 05:17:39,050 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-06 05:17:39,051 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-06 05:17:39,051 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-06 05:17:39,051 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-06 05:17:39,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-06 05:17:39,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-06 05:17:39,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-06 05:17:39,322 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-06 05:17:39,322 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-06 05:17:39,323 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/counter-queue.wvr.bpl [2021-06-06 05:17:39,323 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/counter-queue.wvr.bpl' [2021-06-06 05:17:39,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-06 05:17:39,340 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-06 05:17:39,341 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-06 05:17:39,341 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-06 05:17:39,341 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-06 05:17:39,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:17:39" (1/1) ... [2021-06-06 05:17:39,354 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:17:39" (1/1) ... [2021-06-06 05:17:39,359 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-06 05:17:39,360 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-06 05:17:39,360 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-06 05:17:39,361 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-06 05:17:39,365 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:17:39" (1/1) ... [2021-06-06 05:17:39,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:17:39" (1/1) ... [2021-06-06 05:17:39,366 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:17:39" (1/1) ... [2021-06-06 05:17:39,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:17:39" (1/1) ... [2021-06-06 05:17:39,369 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:17:39" (1/1) ... [2021-06-06 05:17:39,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:17:39" (1/1) ... [2021-06-06 05:17:39,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:17:39" (1/1) ... [2021-06-06 05:17:39,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-06 05:17:39,375 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-06 05:17:39,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-06 05:17:39,375 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-06 05:17:39,376 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:17:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 05:17:39,439 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-06 05:17:39,439 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-06 05:17:39,439 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-06 05:17:39,439 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-06 05:17:39,439 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-06 05:17:39,440 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-06 05:17:39,440 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-06 05:17:39,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-06 05:17:39,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-06 05:17:39,440 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-06 05:17:39,618 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-06 05:17:39,619 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-06 05:17:39,620 INFO L202 PluginConnector]: Adding new model counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 05:17:39 BoogieIcfgContainer [2021-06-06 05:17:39,620 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-06 05:17:39,621 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-06 05:17:39,621 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-06 05:17:39,623 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-06 05:17:39,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:17:39" (1/2) ... [2021-06-06 05:17:39,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70a80735 and model type counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.06 05:17:39, skipping insertion in model container [2021-06-06 05:17:39,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 05:17:39" (2/2) ... [2021-06-06 05:17:39,625 INFO L111 eAbstractionObserver]: Analyzing ICFG counter-queue.wvr.bpl [2021-06-06 05:17:39,628 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-06 05:17:39,628 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-06 05:17:39,628 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-06 05:17:39,632 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-06 05:17:39,675 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-06 05:17:39,688 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-06 05:17:39,733 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-06 05:17:39,733 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-06 05:17:39,733 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-06 05:17:39,733 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-06 05:17:39,733 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-06 05:17:39,733 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-06 05:17:39,733 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-06 05:17:39,734 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-06 05:17:39,807 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:17:39,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:17:39,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1635099045, now seen corresponding path program 1 times [2021-06-06 05:17:39,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:17:39,820 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666291621] [2021-06-06 05:17:39,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:17:39,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:17:39,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:17:39,922 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:17:39,923 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666291621] [2021-06-06 05:17:39,923 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666291621] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 05:17:39,923 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 05:17:39,923 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-06 05:17:39,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119146253] [2021-06-06 05:17:39,926 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-06 05:17:39,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:17:39,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-06 05:17:39,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-06 05:17:39,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:17:39,939 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:17:39,941 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 05:17:39,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:17:39,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:17:39,960 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-06 05:17:39,960 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:17:39,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:17:39,963 INFO L82 PathProgramCache]: Analyzing trace with hash 2119693475, now seen corresponding path program 1 times [2021-06-06 05:17:39,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:17:39,963 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013538367] [2021-06-06 05:17:39,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:17:39,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:17:40,048 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:17:40,048 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:17:40,048 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013538367] [2021-06-06 05:17:40,049 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013538367] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:17:40,049 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772612182] [2021-06-06 05:17:40,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:17:40,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:17:40,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-06 05:17:40,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:17:40,214 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:17:40,214 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [772612182] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:17:40,214 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 05:17:40,214 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2021-06-06 05:17:40,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385291323] [2021-06-06 05:17:40,216 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-06 05:17:40,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:17:40,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-06 05:17:40,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-06-06 05:17:40,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:17:40,217 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:17:40,217 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 05:17:40,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:17:40,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:17:40,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:17:40,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 05:17:40,504 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:17:40,507 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:17:40,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:17:40,507 INFO L82 PathProgramCache]: Analyzing trace with hash -1624375643, now seen corresponding path program 1 times [2021-06-06 05:17:40,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:17:40,508 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332701196] [2021-06-06 05:17:40,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:17:40,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:17:40,616 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:17:40,616 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:17:40,616 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332701196] [2021-06-06 05:17:40,616 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332701196] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:17:40,616 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [974232058] [2021-06-06 05:17:40,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:17:40,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:17:40,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-06 05:17:40,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:17:40,842 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:17:40,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-06-06 05:17:40,847 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 05:17:40,851 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:17:40,855 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 05:17:40,855 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:7 [2021-06-06 05:17:40,875 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:17:40,875 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [974232058] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:17:40,876 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 05:17:40,876 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-06-06 05:17:40,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343456374] [2021-06-06 05:17:40,877 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-06 05:17:40,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:17:40,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-06 05:17:40,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-06-06 05:17:40,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:17:40,879 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:17:40,879 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 05:17:40,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:17:40,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 05:17:40,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:17:40,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:17:40,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 05:17:40,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 05:17:41,124 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:17:41,125 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:17:41,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:17:41,125 INFO L82 PathProgramCache]: Analyzing trace with hash 210936483, now seen corresponding path program 2 times [2021-06-06 05:17:41,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:17:41,125 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607025790] [2021-06-06 05:17:41,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:17:41,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:17:41,196 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:17:41,196 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:17:41,197 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607025790] [2021-06-06 05:17:41,197 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607025790] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:17:41,197 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764673905] [2021-06-06 05:17:41,197 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:17:41,223 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 05:17:41,224 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 05:17:41,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-06 05:17:41,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:17:41,369 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:17:41,369 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1764673905] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:17:41,369 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 05:17:41,369 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2021-06-06 05:17:41,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982780080] [2021-06-06 05:17:41,369 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-06 05:17:41,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:17:41,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-06 05:17:41,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-06-06 05:17:41,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:17:41,370 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:17:41,370 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 13 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 05:17:41,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:17:41,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 05:17:41,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 05:17:41,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:17:41,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:17:41,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 05:17:41,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 05:17:41,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:17:41,722 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:17:41,723 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:17:41,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:17:41,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1988809563, now seen corresponding path program 3 times [2021-06-06 05:17:41,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:17:41,723 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934346996] [2021-06-06 05:17:41,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:17:41,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:17:41,849 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:17:41,850 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:17:41,850 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934346996] [2021-06-06 05:17:41,850 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934346996] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:17:41,850 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053557506] [2021-06-06 05:17:41,850 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:17:41,872 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-06 05:17:41,872 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 05:17:41,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 22 conjunts are in the unsatisfiable core [2021-06-06 05:17:41,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:17:42,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:42,088 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:17:42,098 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:17:42,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 29 [2021-06-06 05:17:42,112 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-06-06 05:17:42,124 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:17:42,148 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-06 05:17:42,148 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:54, output treesize:27 [2021-06-06 05:17:42,200 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:17:42,200 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053557506] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:17:42,200 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 05:17:42,200 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11] total 15 [2021-06-06 05:17:42,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153308237] [2021-06-06 05:17:42,201 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-06 05:17:42,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:17:42,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-06 05:17:42,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2021-06-06 05:17:42,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:17:42,208 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:17:42,208 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 05:17:42,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:17:42,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 05:17:42,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 05:17:42,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:17:42,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:17:42,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:17:42,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 05:17:42,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 05:17:42,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:17:42,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:17:42,524 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:17:42,525 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:17:42,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:17:42,525 INFO L82 PathProgramCache]: Analyzing trace with hash -1839673567, now seen corresponding path program 4 times [2021-06-06 05:17:42,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:17:42,525 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026142607] [2021-06-06 05:17:42,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:17:42,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:17:42,613 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:17:42,613 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:17:42,613 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026142607] [2021-06-06 05:17:42,613 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026142607] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:17:42,613 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948429958] [2021-06-06 05:17:42,614 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) [2021-06-06 05:17:42,645 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 05:17:42,646 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 05:17:42,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-06 05:17:42,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:17:42,795 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:17:42,795 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948429958] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:17:42,795 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 05:17:42,795 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 19 [2021-06-06 05:17:42,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410134331] [2021-06-06 05:17:42,796 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-06 05:17:42,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:17:42,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-06 05:17:42,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2021-06-06 05:17:42,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:17:42,796 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:17:42,797 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.25) internal successors, (45), 19 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 05:17:42,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:17:42,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 05:17:42,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 05:17:42,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:17:42,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:17:42,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:17:42,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:17:42,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 05:17:42,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 05:17:42,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:17:42,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:17:42,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 05:17:43,210 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:17:43,211 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:17:43,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:17:43,211 INFO L82 PathProgramCache]: Analyzing trace with hash -40043611, now seen corresponding path program 5 times [2021-06-06 05:17:43,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:17:43,211 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918622281] [2021-06-06 05:17:43,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:17:43,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:17:43,518 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:17:43,518 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:17:43,518 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918622281] [2021-06-06 05:17:43,519 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918622281] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:17:43,519 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249208910] [2021-06-06 05:17:43,519 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:17:43,556 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-06-06 05:17:43,556 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 05:17:43,557 WARN L261 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 35 conjunts are in the unsatisfiable core [2021-06-06 05:17:43,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:17:43,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:43,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:43,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:43,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:43,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:43,864 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:17:43,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:43,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:43,866 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:17:43,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:43,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:43,867 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:17:43,868 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:17:43,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 7 [2021-06-06 05:17:43,870 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 05:17:43,874 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:17:43,876 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 05:17:43,876 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:75, output treesize:7 [2021-06-06 05:17:43,896 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:17:43,896 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [249208910] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:17:43,896 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 05:17:43,896 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12] total 24 [2021-06-06 05:17:43,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717704481] [2021-06-06 05:17:43,897 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-06 05:17:43,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:17:43,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-06 05:17:43,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=517, Unknown=0, NotChecked=0, Total=600 [2021-06-06 05:17:43,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:17:43,897 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:17:43,897 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.12) internal successors, (53), 24 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 05:17:43,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:17:43,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 05:17:43,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 05:17:43,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:17:43,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:17:43,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 05:17:43,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:17:44,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:17:44,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 05:17:44,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 05:17:44,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:17:44,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:17:44,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 05:17:44,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-06 05:17:44,932 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:17:44,932 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:17:44,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:17:44,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1812733093, now seen corresponding path program 6 times [2021-06-06 05:17:44,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:17:44,933 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191922687] [2021-06-06 05:17:44,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:17:44,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:17:45,332 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 4 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:17:45,332 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:17:45,333 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191922687] [2021-06-06 05:17:45,333 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191922687] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:17:45,333 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147570043] [2021-06-06 05:17:45,333 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:17:45,359 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-06-06 05:17:45,360 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 05:17:45,360 WARN L261 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 47 conjunts are in the unsatisfiable core [2021-06-06 05:17:45,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:17:46,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:46,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:46,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:46,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:46,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:46,368 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:17:46,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:46,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:46,370 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:17:46,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:46,372 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:17:46,373 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:17:46,406 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:17:46,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 6 disjoint index pairs (out of 45 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 81 treesize of output 95 [2021-06-06 05:17:46,455 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2021-06-06 05:17:46,503 INFO L628 ElimStorePlain]: treesize reduction 280, result has 11.1 percent of original size [2021-06-06 05:17:46,510 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-06 05:17:46,510 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:103, output treesize:22 [2021-06-06 05:17:46,571 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:17:46,572 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147570043] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:17:46,572 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 05:17:46,572 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 33 [2021-06-06 05:17:46,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364418088] [2021-06-06 05:17:46,572 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-06 05:17:46,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:17:46,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-06 05:17:46,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=990, Unknown=0, NotChecked=0, Total=1122 [2021-06-06 05:17:46,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:17:46,573 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:17:46,573 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 1.7941176470588236) internal successors, (61), 33 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 05:17:46,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:17:46,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 05:17:46,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 05:17:46,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:17:46,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:17:46,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 05:17:46,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-06 05:17:46,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:17:47,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:17:47,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 05:17:47,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 05:17:47,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:17:47,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:17:47,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 05:17:47,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-06 05:17:47,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-06 05:17:48,120 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-06-06 05:17:48,120 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:17:48,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:17:48,121 INFO L82 PathProgramCache]: Analyzing trace with hash -668528987, now seen corresponding path program 7 times [2021-06-06 05:17:48,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:17:48,121 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774696546] [2021-06-06 05:17:48,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:17:48,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:17:48,573 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:17:48,573 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:17:48,573 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774696546] [2021-06-06 05:17:48,573 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774696546] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:17:48,573 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1734403111] [2021-06-06 05:17:48,573 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:17:48,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:17:48,603 WARN L261 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 51 conjunts are in the unsatisfiable core [2021-06-06 05:17:48,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:17:49,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:49,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:49,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:49,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:49,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:49,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:49,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:49,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:49,173 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:17:49,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:49,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:49,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:49,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:49,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:49,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:49,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:49,178 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:17:49,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:49,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:49,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:49,181 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:17:49,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:49,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:49,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:49,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:49,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:49,184 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:17:49,185 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:17:49,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:49,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:49,186 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:17:49,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 15 disjoint index pairs (out of 66 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 7 [2021-06-06 05:17:49,188 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 05:17:49,193 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:17:49,194 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 05:17:49,194 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:107, output treesize:7 [2021-06-06 05:17:49,214 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:17:49,214 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1734403111] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:17:49,214 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 05:17:49,214 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 16] total 32 [2021-06-06 05:17:49,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9102492] [2021-06-06 05:17:49,215 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-06-06 05:17:49,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:17:49,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-06-06 05:17:49,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=934, Unknown=0, NotChecked=0, Total=1056 [2021-06-06 05:17:49,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:17:49,216 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:17:49,216 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 2.090909090909091) internal successors, (69), 32 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 05:17:49,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:17:49,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 05:17:49,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 05:17:49,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:17:49,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:17:49,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 05:17:49,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-06 05:17:49,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-06 05:17:49,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:17:50,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:17:50,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 05:17:50,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 05:17:50,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:17:50,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:17:50,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 05:17:50,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-06 05:17:50,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-06 05:17:50,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-06 05:17:50,786 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:17:50,786 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:17:50,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:17:50,787 INFO L82 PathProgramCache]: Analyzing trace with hash 2110591397, now seen corresponding path program 8 times [2021-06-06 05:17:50,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:17:50,787 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881776514] [2021-06-06 05:17:50,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:17:50,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:17:51,297 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 16 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:17:51,297 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:17:51,297 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881776514] [2021-06-06 05:17:51,297 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881776514] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:17:51,297 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020397921] [2021-06-06 05:17:51,297 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:17:51,347 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 05:17:51,347 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 05:17:51,348 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 59 conjunts are in the unsatisfiable core [2021-06-06 05:17:51,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:17:52,057 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:17:52,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:52,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:52,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:52,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:52,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:52,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:52,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:52,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:52,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:52,064 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:17:52,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:52,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:52,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:52,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:52,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:52,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:52,069 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:17:52,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:52,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:52,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:52,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:52,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:52,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:52,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:52,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:52,075 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:17:52,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:52,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:52,077 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:17:52,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:52,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:52,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:52,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:52,081 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:17:52,081 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:17:52,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 21 disjoint index pairs (out of 91 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 7 [2021-06-06 05:17:52,083 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 05:17:52,088 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:17:52,089 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 05:17:52,090 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:123, output treesize:7 [2021-06-06 05:17:52,114 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:17:52,114 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020397921] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:17:52,114 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 05:17:52,114 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 18] total 36 [2021-06-06 05:17:52,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785509518] [2021-06-06 05:17:52,115 INFO L462 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-06-06 05:17:52,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:17:52,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-06-06 05:17:52,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=1192, Unknown=0, NotChecked=0, Total=1332 [2021-06-06 05:17:52,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:17:52,116 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:17:52,116 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 2.081081081081081) internal successors, (77), 36 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 05:17:52,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:17:52,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 05:17:52,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 05:17:52,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:17:52,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:17:52,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 05:17:52,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-06 05:17:52,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-06 05:17:52,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-06 05:17:52,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:17:53,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:17:53,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 05:17:53,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 05:17:53,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:17:53,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:17:53,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 05:17:53,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-06 05:17:53,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-06 05:17:53,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-06 05:17:53,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-06 05:17:54,125 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:17:54,126 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:17:54,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:17:54,126 INFO L82 PathProgramCache]: Analyzing trace with hash -900897371, now seen corresponding path program 9 times [2021-06-06 05:17:54,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:17:54,126 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432516430] [2021-06-06 05:17:54,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:17:54,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:17:54,758 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 25 proven. 103 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:17:54,758 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:17:54,759 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432516430] [2021-06-06 05:17:54,759 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432516430] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:17:54,759 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379951354] [2021-06-06 05:17:54,759 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 [2021-06-06 05:17:54,790 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-06-06 05:17:54,790 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 05:17:54,791 WARN L261 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 71 conjunts are in the unsatisfiable core [2021-06-06 05:17:54,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:17:58,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:58,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:58,648 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:17:58,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:58,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:58,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:58,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:58,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:58,659 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:17:58,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:58,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:58,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:58,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:58,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:58,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:58,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:58,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:58,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:58,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:58,676 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:17:58,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:58,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:58,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:58,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:58,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:58,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:58,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:58,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:58,692 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:17:58,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:58,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:17:58,939 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2021-06-06 05:17:58,940 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:17:58,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 24 disjoint index pairs (out of 120 index pairs), introduced 12 new quantified variables, introduced 74 case distinctions, treesize of input 141 treesize of output 487 [2021-06-06 05:17:59,812 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 242 [2021-06-06 05:18:00,082 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 262 [2021-06-06 05:18:00,352 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 297 DAG size of output: 308 [2021-06-06 05:18:00,840 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 221 [2021-06-06 05:18:01,150 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 271 [2021-06-06 05:18:01,716 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 221 [2021-06-06 05:18:01,899 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 242 [2021-06-06 05:18:02,558 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 211 [2021-06-06 05:18:02,950 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 276 [2021-06-06 05:18:03,719 WARN L205 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 345 DAG size of output: 342 [2021-06-06 05:18:04,531 WARN L205 SmtUtils]: Spent 802.00 ms on a formula simplification. DAG size of input: 396 DAG size of output: 412 [2021-06-06 05:18:05,790 WARN L205 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 503 DAG size of output: 520 [2021-06-06 05:18:07,657 WARN L205 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 641 DAG size of output: 665 [2021-06-06 05:18:09,876 WARN L205 SmtUtils]: Spent 2.22 s on a formula simplification. DAG size of input: 673 DAG size of output: 697 [2021-06-06 05:18:10,598 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 298 [2021-06-06 05:18:10,822 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 335 DAG size of output: 333 [2021-06-06 05:18:11,112 WARN L205 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 371 DAG size of output: 370 [2021-06-06 05:18:11,683 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 331 DAG size of output: 334 [2021-06-06 05:18:12,301 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 468 DAG size of output: 477 [2021-06-06 05:18:13,250 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 307 [2021-06-06 05:18:13,899 WARN L205 SmtUtils]: Spent 647.00 ms on a formula simplification. DAG size of input: 622 DAG size of output: 634 [2021-06-06 05:18:14,727 WARN L205 SmtUtils]: Spent 825.00 ms on a formula simplification. DAG size of input: 666 DAG size of output: 678 [2021-06-06 05:18:16,153 WARN L205 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 823 DAG size of output: 833 [2021-06-06 05:18:16,877 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 207 [2021-06-06 05:18:17,024 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 222 [2021-06-06 05:18:17,384 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 270 [2021-06-06 05:18:17,767 WARN L205 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 350 DAG size of output: 347 [2021-06-06 05:18:18,607 WARN L205 SmtUtils]: Spent 583.00 ms on a formula simplification. DAG size of input: 413 DAG size of output: 411 [2021-06-06 05:18:21,092 WARN L205 SmtUtils]: Spent 2.48 s on a formula simplification. DAG size of input: 1066 DAG size of output: 1073 [2021-06-06 05:18:26,724 WARN L205 SmtUtils]: Spent 5.63 s on a formula simplification. DAG size of input: 1491 DAG size of output: 1519 [2021-06-06 05:18:32,344 WARN L205 SmtUtils]: Spent 5.61 s on a formula simplification. DAG size of input: 1491 DAG size of output: 1519 [2021-06-06 05:18:38,092 WARN L205 SmtUtils]: Spent 5.74 s on a formula simplification. DAG size of input: 1502 DAG size of output: 1530 [2021-06-06 05:18:40,665 WARN L205 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 741 DAG size of output: 950 [2021-06-06 05:18:43,453 WARN L205 SmtUtils]: Spent 2.78 s on a formula simplification. DAG size of input: 736 DAG size of output: 1124 [2021-06-06 05:18:45,320 WARN L205 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 692 DAG size of output: 835 [2021-06-06 05:18:46,061 WARN L205 SmtUtils]: Spent 735.00 ms on a formula simplification. DAG size of input: 631 DAG size of output: 695 [2021-06-06 05:18:47,918 WARN L205 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 617 DAG size of output: 791 [2021-06-06 05:18:48,492 WARN L205 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 581 DAG size of output: 595 [2021-06-06 05:18:49,576 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 578 DAG size of output: 808 [2021-06-06 05:18:50,235 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 467 DAG size of output: 446 [2021-06-06 05:18:51,009 WARN L205 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 578 DAG size of output: 558 [2021-06-06 05:18:51,176 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 222 [2021-06-06 05:18:51,581 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 315 [2021-06-06 05:18:52,765 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 431 DAG size of output: 412 [2021-06-06 05:18:56,389 WARN L205 SmtUtils]: Spent 3.62 s on a formula simplification. DAG size of input: 1917 DAG size of output: 1769 [2021-06-06 05:19:01,717 WARN L205 SmtUtils]: Spent 5.32 s on a formula simplification. DAG size of input: 2194 DAG size of output: 2044 [2021-06-06 05:19:09,217 WARN L205 SmtUtils]: Spent 7.49 s on a formula simplification. DAG size of input: 2459 DAG size of output: 2323 [2021-06-06 05:19:09,804 WARN L205 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 587 [2021-06-06 05:19:10,019 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 536 DAG size of output: 541 [2021-06-06 05:19:10,526 WARN L205 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 358 DAG size of output: 446 [2021-06-06 05:19:10,721 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 223 [2021-06-06 05:19:11,103 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 305 DAG size of output: 257 [2021-06-06 05:19:11,327 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 393 DAG size of output: 351 [2021-06-06 05:19:11,948 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 411 DAG size of output: 387 [2021-06-06 05:19:12,606 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 557 DAG size of output: 531 [2021-06-06 05:19:13,267 WARN L205 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 771 DAG size of output: 708 [2021-06-06 05:19:13,767 WARN L205 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 350 [2021-06-06 05:19:14,023 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 354 [2021-06-06 05:19:14,822 WARN L205 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 471 DAG size of output: 443 [2021-06-06 05:19:15,459 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 336 DAG size of output: 311 [2021-06-06 05:19:16,228 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 366 DAG size of output: 344 [2021-06-06 05:19:17,449 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 734 DAG size of output: 696 [2021-06-06 05:19:19,842 WARN L205 SmtUtils]: Spent 2.39 s on a formula simplification. DAG size of input: 1237 DAG size of output: 1148 [2021-06-06 05:19:20,010 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 306 [2021-06-06 05:19:20,471 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 353 DAG size of output: 348 [2021-06-06 05:19:21,135 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 485 DAG size of output: 473 [2021-06-06 05:19:21,514 WARN L205 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 705 DAG size of output: 690 [2021-06-06 05:19:22,106 WARN L205 SmtUtils]: Spent 588.00 ms on a formula simplification. DAG size of input: 795 DAG size of output: 784 [2021-06-06 05:19:22,913 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 354 DAG size of output: 357 [2021-06-06 05:19:23,463 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 287 DAG size of output: 288 [2021-06-06 05:19:23,673 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 379 DAG size of output: 381 [2021-06-06 05:19:24,166 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 313 DAG size of output: 311 [2021-06-06 05:19:24,631 WARN L205 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 551 DAG size of output: 550 [2021-06-06 05:19:25,442 WARN L205 SmtUtils]: Spent 807.00 ms on a formula simplification. DAG size of input: 790 DAG size of output: 792 [2021-06-06 05:19:30,256 WARN L205 SmtUtils]: Spent 4.81 s on a formula simplification. DAG size of input: 2269 DAG size of output: 2166 [2021-06-06 05:19:37,766 WARN L205 SmtUtils]: Spent 7.42 s on a formula simplification. DAG size of input: 2617 DAG size of output: 2468 [2021-06-06 05:19:47,591 WARN L205 SmtUtils]: Spent 9.81 s on a formula simplification. DAG size of input: 2856 DAG size of output: 2716 [2021-06-06 05:20:07,801 WARN L205 SmtUtils]: Spent 20.20 s on a formula simplification. DAG size of input: 4301 DAG size of output: 4043 [2021-06-06 05:20:08,386 WARN L205 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 637 DAG size of output: 651 [2021-06-06 05:20:09,693 WARN L205 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 634 DAG size of output: 902 [2021-06-06 05:20:10,844 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 478 DAG size of output: 700 [2021-06-06 05:20:11,280 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 194 [2021-06-06 05:20:12,065 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 340 DAG size of output: 324 [2021-06-06 05:20:12,448 WARN L205 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 416 DAG size of output: 387 [2021-06-06 05:20:12,614 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 280 [2021-06-06 05:20:13,094 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 442 DAG size of output: 427 [2021-06-06 05:20:15,036 WARN L205 SmtUtils]: Spent 1.94 s on a formula simplification. DAG size of input: 1172 DAG size of output: 1090 [2021-06-06 05:20:15,723 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 393 DAG size of output: 381 [2021-06-06 05:20:16,038 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 514 DAG size of output: 501 [2021-06-06 05:20:16,667 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 285 [2021-06-06 05:20:17,240 WARN L205 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 678 DAG size of output: 662 [2021-06-06 05:20:20,369 WARN L205 SmtUtils]: Spent 3.12 s on a formula simplification. DAG size of input: 1655 DAG size of output: 1556 [2021-06-06 05:20:25,018 WARN L205 SmtUtils]: Spent 4.64 s on a formula simplification. DAG size of input: 1952 DAG size of output: 1867 [2021-06-06 05:20:31,752 WARN L205 SmtUtils]: Spent 6.73 s on a formula simplification. DAG size of input: 2252 DAG size of output: 2166 [2021-06-06 05:20:42,878 WARN L205 SmtUtils]: Spent 10.95 s on a formula simplification. DAG size of input: 3203 DAG size of output: 2955 [2021-06-06 05:21:19,100 WARN L205 SmtUtils]: Spent 36.20 s on a formula simplification. DAG size of input: 6325 DAG size of output: 5851 [2021-06-06 05:21:19,242 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 701 [2021-06-06 05:21:21,703 WARN L205 SmtUtils]: Spent 2.46 s on a formula simplification. DAG size of input: 671 DAG size of output: 978 [2021-06-06 05:21:24,107 WARN L205 SmtUtils]: Spent 2.40 s on a formula simplification. DAG size of input: 668 DAG size of output: 961 [2021-06-06 05:21:27,131 WARN L205 SmtUtils]: Spent 3.02 s on a formula simplification. DAG size of input: 665 DAG size of output: 974 [2021-06-06 05:21:27,524 WARN L205 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 285 [2021-06-06 05:21:27,688 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 193 [2021-06-06 05:21:28,034 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 341 DAG size of output: 337 [2021-06-06 05:21:28,442 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 428 DAG size of output: 416 [2021-06-06 05:21:28,823 WARN L205 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 506 DAG size of output: 453 [2021-06-06 05:21:29,468 WARN L205 SmtUtils]: Spent 637.00 ms on a formula simplification. DAG size of input: 615 DAG size of output: 563 [2021-06-06 05:21:29,587 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 200 [2021-06-06 05:21:29,881 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 262 [2021-06-06 05:21:30,731 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 316 [2021-06-06 05:21:31,495 WARN L205 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 583 DAG size of output: 563 [2021-06-06 05:21:31,962 WARN L205 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 303 DAG size of output: 394 [2021-06-06 05:21:33,313 WARN L205 SmtUtils]: Spent 638.00 ms on a formula simplification. DAG size of input: 658 DAG size of output: 639 [2021-06-06 05:21:39,074 WARN L205 SmtUtils]: Spent 5.76 s on a formula simplification. DAG size of input: 2009 DAG size of output: 1914 [2021-06-06 05:21:47,990 WARN L205 SmtUtils]: Spent 8.91 s on a formula simplification. DAG size of input: 2013 DAG size of output: 1916 [2021-06-06 05:22:00,313 WARN L205 SmtUtils]: Spent 12.31 s on a formula simplification. DAG size of input: 2325 DAG size of output: 2231 [2021-06-06 05:22:20,568 WARN L205 SmtUtils]: Spent 20.03 s on a formula simplification. DAG size of input: 3594 DAG size of output: 3167 [2021-06-06 05:23:24,889 WARN L205 SmtUtils]: Spent 1.07 m on a formula simplification. DAG size of input: 9326 DAG size of output: 8368 [2021-06-06 05:24:40,884 WARN L205 SmtUtils]: Spent 1.27 m on a formula simplification. DAG size of input: 9585 DAG size of output: 8636 [2021-06-06 05:24:44,263 WARN L205 SmtUtils]: Spent 3.34 s on a formula simplification. DAG size of input: 1088 DAG size of output: 1536 [2021-06-06 05:24:47,498 WARN L205 SmtUtils]: Spent 3.23 s on a formula simplification. DAG size of input: 1085 DAG size of output: 1490 [2021-06-06 05:24:47,664 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2021-06-06 05:24:47,845 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 263 [2021-06-06 05:24:47,983 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 260 [2021-06-06 05:24:48,109 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 224 [2021-06-06 05:24:48,453 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 280 DAG size of output: 281 [2021-06-06 05:24:48,676 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 285 DAG size of output: 284 [2021-06-06 05:24:48,991 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 336 [2021-06-06 05:24:49,460 WARN L205 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 423 DAG size of output: 401 [2021-06-06 05:24:50,090 WARN L205 SmtUtils]: Spent 626.00 ms on a formula simplification. DAG size of input: 427 DAG size of output: 403 [2021-06-06 05:24:50,478 WARN L205 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 367 [2021-06-06 05:24:50,834 WARN L205 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 359 [2021-06-06 05:24:51,352 WARN L205 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 275 DAG size of output: 364 [2021-06-06 05:24:51,632 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 246 [2021-06-06 05:24:52,584 WARN L205 SmtUtils]: Spent 685.00 ms on a formula simplification. DAG size of input: 628 DAG size of output: 589 [2021-06-06 05:24:53,567 WARN L205 SmtUtils]: Spent 980.00 ms on a formula simplification. DAG size of input: 633 DAG size of output: 592 [2021-06-06 05:24:55,004 WARN L205 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 757 DAG size of output: 712 [2021-06-06 05:24:55,120 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 244 [2021-06-06 05:24:55,237 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 243 [2021-06-06 05:24:55,347 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 233 [2021-06-06 05:24:55,872 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 332 DAG size of output: 322 [2021-06-06 05:24:56,103 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 380 DAG size of output: 368 [2021-06-06 05:24:56,470 WARN L205 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 435 DAG size of output: 422 [2021-06-06 05:24:57,014 WARN L205 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 493 DAG size of output: 469 [2021-06-06 05:24:59,435 WARN L205 SmtUtils]: Spent 2.42 s on a formula simplification. DAG size of input: 1092 DAG size of output: 1023 [2021-06-06 05:25:03,143 WARN L205 SmtUtils]: Spent 3.70 s on a formula simplification. DAG size of input: 1294 DAG size of output: 1202 [2021-06-06 05:25:03,251 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 840 [2021-06-06 05:25:03,695 WARN L205 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 343 DAG size of output: 412 [2021-06-06 05:25:04,235 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 236 [2021-06-06 05:25:04,513 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 295 DAG size of output: 297 [2021-06-06 05:25:04,885 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 350 DAG size of output: 352 [2021-06-06 05:25:05,388 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 326 [2021-06-06 05:25:05,676 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 350 [2021-06-06 05:25:06,262 WARN L205 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 534 DAG size of output: 493 [2021-06-06 05:25:06,763 WARN L205 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 641 DAG size of output: 602 [2021-06-06 05:25:07,519 WARN L205 SmtUtils]: Spent 752.00 ms on a formula simplification. DAG size of input: 779 DAG size of output: 741 [2021-06-06 05:25:08,814 WARN L205 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 987 DAG size of output: 950 [2021-06-06 05:25:10,670 WARN L205 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 1124 DAG size of output: 1088 [2021-06-06 05:25:13,652 WARN L205 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 1499 DAG size of output: 1406 [2021-06-06 05:25:14,144 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 340 [2021-06-06 05:25:14,345 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 353 [2021-06-06 05:25:15,008 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 587 DAG size of output: 571 [2021-06-06 05:25:15,354 WARN L205 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 727 DAG size of output: 707 [2021-06-06 05:25:15,891 WARN L205 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 816 DAG size of output: 802 [2021-06-06 05:25:16,406 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 339 DAG size of output: 333 [2021-06-06 05:25:17,280 WARN L205 SmtUtils]: Spent 867.00 ms on a formula simplification. DAG size of input: 1027 DAG size of output: 1003 [2021-06-06 05:25:17,541 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 298 DAG size of output: 366 [2021-06-06 05:25:17,680 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 322 [2021-06-06 05:25:17,804 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 306 [2021-06-06 05:25:18,300 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 609 DAG size of output: 586 [2021-06-06 05:25:18,683 WARN L205 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 693 DAG size of output: 674 [2021-06-06 05:25:19,318 WARN L205 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 818 DAG size of output: 794 [2021-06-06 05:25:19,476 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 312 [2021-06-06 05:25:20,137 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 555 DAG size of output: 532 [2021-06-06 05:25:20,571 WARN L205 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 699 DAG size of output: 676 [2021-06-06 05:25:21,585 WARN L205 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 845 DAG size of output: 815 [2021-06-06 05:25:22,076 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 293 DAG size of output: 301 [2021-06-06 05:25:22,390 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 318 [2021-06-06 05:25:22,754 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 535 DAG size of output: 499 [2021-06-06 05:25:23,014 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 664 DAG size of output: 632 [2021-06-06 05:25:23,208 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 293 DAG size of output: 335 [2021-06-06 05:25:23,314 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 297 [2021-06-06 05:25:24,287 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 567 DAG size of output: 517 [2021-06-06 05:25:24,619 WARN L205 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 684 DAG size of output: 639 [2021-06-06 05:25:25,111 WARN L205 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 804 DAG size of output: 760 [2021-06-06 05:25:25,845 WARN L205 SmtUtils]: Spent 729.00 ms on a formula simplification. DAG size of input: 917 DAG size of output: 878 [2021-06-06 05:25:26,937 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 1213 DAG size of output: 1168 [2021-06-06 05:25:29,375 WARN L205 SmtUtils]: Spent 2.43 s on a formula simplification. DAG size of input: 1965 DAG size of output: 1905 [2021-06-06 05:25:34,277 WARN L205 SmtUtils]: Spent 4.89 s on a formula simplification. DAG size of input: 2878 DAG size of output: 2788 [2021-06-06 05:25:42,725 WARN L205 SmtUtils]: Spent 8.43 s on a formula simplification. DAG size of input: 4237 DAG size of output: 3592 [2021-06-06 05:25:56,312 WARN L205 SmtUtils]: Spent 13.57 s on a formula simplification. DAG size of input: 5311 DAG size of output: 4573 [2021-06-06 05:26:16,649 WARN L205 SmtUtils]: Spent 20.31 s on a formula simplification. DAG size of input: 6289 DAG size of output: 5463 [2021-06-06 05:26:42,951 WARN L205 SmtUtils]: Spent 26.27 s on a formula simplification. DAG size of input: 6859 DAG size of output: 6051 [2021-06-06 05:27:15,888 WARN L205 SmtUtils]: Spent 32.90 s on a formula simplification. DAG size of input: 6979 DAG size of output: 6178 [2021-06-06 05:29:20,238 WARN L205 SmtUtils]: Spent 2.07 m on a formula simplification. DAG size of input: 15531 DAG size of output: 13741 [2021-06-06 05:31:25,332 WARN L205 SmtUtils]: Spent 2.08 m on a formula simplification. DAG size of input: 15531 DAG size of output: 13741 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown