/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistent-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/counter-queue.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-10 09:10:31,038 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-10 09:10:31,039 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-10 09:10:31,057 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-10 09:10:31,057 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-10 09:10:31,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-10 09:10:31,064 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-10 09:10:31,067 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-10 09:10:31,068 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-10 09:10:31,068 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-10 09:10:31,069 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-10 09:10:31,069 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-10 09:10:31,070 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-10 09:10:31,070 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-10 09:10:31,071 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-10 09:10:31,074 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-10 09:10:31,075 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-10 09:10:31,080 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-10 09:10:31,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-10 09:10:31,084 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-10 09:10:31,085 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-10 09:10:31,086 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-10 09:10:31,087 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-10 09:10:31,087 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-10 09:10:31,089 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-10 09:10:31,089 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-10 09:10:31,089 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-10 09:10:31,090 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-10 09:10:31,090 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-10 09:10:31,090 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-10 09:10:31,091 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-10 09:10:31,091 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-10 09:10:31,092 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-10 09:10:31,092 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-10 09:10:31,093 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-10 09:10:31,093 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-10 09:10:31,093 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-10 09:10:31,093 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-10 09:10:31,094 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-10 09:10:31,094 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-10 09:10:31,095 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-10 09:10:31,100 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistent-NoLbe-Lockstep.epf [2021-07-10 09:10:31,123 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-10 09:10:31,124 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-10 09:10:31,124 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-10 09:10:31,124 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-10 09:10:31,126 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-10 09:10:31,126 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-10 09:10:31,126 INFO L138 SettingsManager]: * Use SBE=true [2021-07-10 09:10:31,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-10 09:10:31,126 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-10 09:10:31,126 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-10 09:10:31,127 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-10 09:10:31,127 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-10 09:10:31,127 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-10 09:10:31,127 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-10 09:10:31,128 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-10 09:10:31,128 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-10 09:10:31,128 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-10 09:10:31,128 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-10 09:10:31,128 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-10 09:10:31,128 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-10 09:10:31,128 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-10 09:10:31,128 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-10 09:10:31,128 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-10 09:10:31,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-10 09:10:31,129 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-10 09:10:31,129 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-10 09:10:31,129 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-10 09:10:31,129 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-10 09:10:31,129 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-07-10 09:10:31,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-10 09:10:31,129 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-10 09:10:31,129 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-10 09:10:31,130 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-10 09:10:31,130 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES [2021-07-10 09:10:31,130 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-10 09:10:31,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-10 09:10:31,362 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-10 09:10:31,364 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-10 09:10:31,364 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-10 09:10:31,365 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-10 09:10:31,365 INFO L432 ainManager$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 [2021-07-10 09:10:31,366 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/counter-queue.wvr.bpl' [2021-07-10 09:10:31,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-10 09:10:31,384 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-10 09:10:31,385 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-10 09:10:31,385 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-10 09:10:31,385 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-10 09:10:31,394 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 10.07 09:10:31" (1/1) ... [2021-07-10 09:10:31,403 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 10.07 09:10:31" (1/1) ... [2021-07-10 09:10:31,407 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-10 09:10:31,411 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-10 09:10:31,411 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-10 09:10:31,411 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-10 09:10:31,416 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:10:31" (1/1) ... [2021-07-10 09:10:31,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:10:31" (1/1) ... [2021-07-10 09:10:31,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:10:31" (1/1) ... [2021-07-10 09:10:31,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:10:31" (1/1) ... [2021-07-10 09:10:31,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:10:31" (1/1) ... [2021-07-10 09:10:31,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:10:31" (1/1) ... [2021-07-10 09:10:31,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:10:31" (1/1) ... [2021-07-10 09:10:31,422 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-10 09:10:31,423 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-10 09:10:31,423 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-10 09:10:31,423 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-10 09:10:31,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:10:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-10 09:10:31,487 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-10 09:10:31,487 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-10 09:10:31,487 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-10 09:10:31,487 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-10 09:10:31,487 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-10 09:10:31,487 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-10 09:10:31,487 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-10 09:10:31,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-10 09:10:31,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-10 09:10:31,488 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-10 09:10:31,651 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-10 09:10:31,651 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-10 09:10:31,652 INFO L202 PluginConnector]: Adding new model counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 09:10:31 BoogieIcfgContainer [2021-07-10 09:10:31,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-10 09:10:31,653 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-10 09:10:31,654 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-10 09:10:31,655 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-10 09:10:31,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:10:31" (1/2) ... [2021-07-10 09:10:31,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea154de and model type counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 09:10:31, skipping insertion in model container [2021-07-10 09:10:31,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 09:10:31" (2/2) ... [2021-07-10 09:10:31,657 INFO L111 eAbstractionObserver]: Analyzing ICFG counter-queue.wvr.bpl [2021-07-10 09:10:31,661 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-10 09:10:31,661 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-10 09:10:31,661 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-10 09:10:31,661 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-10 09:10:31,682 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-07-10 09:10:31,696 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 [2021-07-10 09:10:31,805 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-10 09:10:31,806 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-10 09:10:31,806 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-10 09:10:31,806 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-10 09:10:31,806 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-10 09:10:31,806 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-10 09:10:31,806 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-10 09:10:31,806 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-10 09:10:31,880 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 09:10:31,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 09:10:31,886 INFO L82 PathProgramCache]: Analyzing trace with hash 466925783, now seen corresponding path program 1 times [2021-07-10 09:10:31,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 09:10:31,893 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885096226] [2021-07-10 09:10:31,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 09:10:31,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:10:32,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:10:32,016 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 09:10:32,017 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885096226] [2021-07-10 09:10:32,017 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885096226] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 09:10:32,017 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 09:10:32,017 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-10 09:10:32,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589511204] [2021-07-10 09:10:32,021 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-10 09:10:32,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 09:10:32,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-10 09:10:32,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-10 09:10:32,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:10:32,034 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 09:10:32,035 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) [2021-07-10 09:10:32,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:10:32,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 09:10:32,057 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-10 09:10:32,057 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 09:10:32,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 09:10:32,060 INFO L82 PathProgramCache]: Analyzing trace with hash 2140139737, now seen corresponding path program 1 times [2021-07-10 09:10:32,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 09:10:32,061 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216404159] [2021-07-10 09:10:32,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 09:10:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:10:32,164 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:10:32,164 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 09:10:32,164 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216404159] [2021-07-10 09:10:32,165 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216404159] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:10:32,165 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778829082] [2021-07-10 09:10:32,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 09:10:32,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:10:32,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-10 09:10:32,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 09:10:32,333 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:10:32,334 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1778829082] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:10:32,334 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 09:10:32,334 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2021-07-10 09:10:32,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092821380] [2021-07-10 09:10:32,335 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-10 09:10:32,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 09:10:32,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-10 09:10:32,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-07-10 09:10:32,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:10:32,336 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 09:10:32,336 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 09:10:32,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 09:10:32,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:10:32,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 09:10:32,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 09:10:32,650 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 09:10:32,650 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 09:10:32,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 09:10:32,651 INFO L82 PathProgramCache]: Analyzing trace with hash 93675479, now seen corresponding path program 1 times [2021-07-10 09:10:32,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 09:10:32,651 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101794863] [2021-07-10 09:10:32,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 09:10:32,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:10:32,794 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:10:32,795 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 09:10:32,795 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101794863] [2021-07-10 09:10:32,795 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101794863] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:10:32,795 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [950442296] [2021-07-10 09:10:32,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 09:10:32,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:10:32,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-10 09:10:32,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 09:10:32,950 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 09:10:32,953 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 [2021-07-10 09:10:32,955 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 09:10:32,960 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 09:10:32,962 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-10 09:10:32,963 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:7 [2021-07-10 09:10:32,984 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:10:32,985 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [950442296] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:10:32,985 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 09:10:32,985 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-07-10 09:10:32,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332998832] [2021-07-10 09:10:32,985 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-10 09:10:32,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 09:10:32,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-10 09:10:32,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-07-10 09:10:32,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:10:32,986 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 09:10:32,986 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 09:10:32,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 09:10:32,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 09:10:32,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:10:33,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 09:10:33,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 09:10:33,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 09:10:33,240 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 09:10:33,241 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 09:10:33,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 09:10:33,241 INFO L82 PathProgramCache]: Analyzing trace with hash 688965337, now seen corresponding path program 2 times [2021-07-10 09:10:33,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 09:10:33,241 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125183573] [2021-07-10 09:10:33,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 09:10:33,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:10:33,297 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:10:33,297 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 09:10:33,297 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125183573] [2021-07-10 09:10:33,297 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125183573] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:10:33,297 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326700993] [2021-07-10 09:10:33,297 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 09:10:33,354 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 09:10:33,354 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 09:10:33,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-10 09:10:33,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 09:10:33,495 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:10:33,495 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [326700993] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:10:33,495 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 09:10:33,495 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2021-07-10 09:10:33,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937238719] [2021-07-10 09:10:33,496 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-10 09:10:33,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 09:10:33,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-10 09:10:33,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-07-10 09:10:33,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:10:33,498 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 09:10:33,499 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 09:10:33,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 09:10:33,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 09:10:33,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 09:10:33,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:10:33,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 09:10:33,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 09:10:33,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 09:10:33,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:10:33,845 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 09:10:33,845 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 09:10:33,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 09:10:33,845 INFO L82 PathProgramCache]: Analyzing trace with hash 1379448279, now seen corresponding path program 3 times [2021-07-10 09:10:33,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 09:10:33,845 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887090228] [2021-07-10 09:10:33,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 09:10:33,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:10:33,965 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:10:33,965 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 09:10:33,965 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887090228] [2021-07-10 09:10:33,965 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887090228] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:10:33,965 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164781724] [2021-07-10 09:10:33,966 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 09:10:33,988 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-07-10 09:10:33,988 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 09:10:33,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 22 conjunts are in the unsatisfiable core [2021-07-10 09:10:33,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 09:10:34,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:34,209 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 09:10:34,218 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 09:10:34,219 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 [2021-07-10 09:10:34,231 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-07-10 09:10:34,245 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 09:10:34,269 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-07-10 09:10:34,269 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:54, output treesize:27 [2021-07-10 09:10:34,329 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:10:34,329 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1164781724] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:10:34,329 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 09:10:34,329 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11] total 15 [2021-07-10 09:10:34,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227073258] [2021-07-10 09:10:34,330 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-07-10 09:10:34,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 09:10:34,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-07-10 09:10:34,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2021-07-10 09:10:34,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:10:34,341 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 09:10:34,341 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.25) internal successors, (36), 15 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 09:10:34,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 09:10:34,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 09:10:34,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 09:10:34,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:10:34,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:10:34,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 09:10:34,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 09:10:34,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 09:10:34,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:10:34,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 09:10:34,701 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 09:10:34,702 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 09:10:34,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 09:10:34,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1386441051, now seen corresponding path program 4 times [2021-07-10 09:10:34,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 09:10:34,702 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31421874] [2021-07-10 09:10:34,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 09:10:34,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:10:34,785 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:10:34,785 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 09:10:34,785 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31421874] [2021-07-10 09:10:34,785 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31421874] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:10:34,786 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232537014] [2021-07-10 09:10:34,786 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 09:10:34,818 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-10 09:10:34,818 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 09:10:34,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 10 conjunts are in the unsatisfiable core [2021-07-10 09:10:34,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 09:10:34,956 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:10:34,956 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232537014] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:10:34,956 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 09:10:34,956 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 19 [2021-07-10 09:10:34,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595374099] [2021-07-10 09:10:34,957 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-10 09:10:34,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 09:10:34,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-10 09:10:34,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2021-07-10 09:10:34,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:10:34,958 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 09:10:34,958 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.2) internal successors, (44), 19 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 09:10:34,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 09:10:34,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 09:10:34,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 09:10:34,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:10:34,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 09:10:34,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:10:35,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 09:10:35,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 09:10:35,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 09:10:35,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:10:35,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 09:10:35,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 09:10:35,412 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 09:10:35,413 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 09:10:35,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 09:10:35,413 INFO L82 PathProgramCache]: Analyzing trace with hash -742756649, now seen corresponding path program 5 times [2021-07-10 09:10:35,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 09:10:35,413 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719984432] [2021-07-10 09:10:35,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 09:10:35,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:10:35,788 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:10:35,788 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 09:10:35,788 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719984432] [2021-07-10 09:10:35,788 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719984432] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:10:35,788 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183747240] [2021-07-10 09:10:35,788 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 09:10:35,814 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-07-10 09:10:35,815 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 09:10:35,815 WARN L261 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 35 conjunts are in the unsatisfiable core [2021-07-10 09:10:35,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 09:10:36,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:36,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:36,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:36,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:36,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:36,133 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 09:10:36,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:36,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:36,135 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 09:10:36,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:36,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:36,137 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 09:10:36,137 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 09:10:36,138 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 [2021-07-10 09:10:36,139 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 09:10:36,143 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 09:10:36,145 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-10 09:10:36,145 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:75, output treesize:7 [2021-07-10 09:10:36,166 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:10:36,166 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1183747240] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:10:36,166 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 09:10:36,166 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12] total 24 [2021-07-10 09:10:36,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482296419] [2021-07-10 09:10:36,166 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-10 09:10:36,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 09:10:36,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-10 09:10:36,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=517, Unknown=0, NotChecked=0, Total=600 [2021-07-10 09:10:36,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:10:36,167 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 09:10:36,167 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.08) internal successors, (52), 24 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 09:10:36,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 09:10:36,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 09:10:36,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 09:10:36,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:10:36,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 09:10:36,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 09:10:36,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:10:37,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 09:10:37,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 09:10:37,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 09:10:37,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:10:37,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 09:10:37,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 09:10:37,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 09:10:37,429 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 09:10:37,429 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 09:10:37,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 09:10:37,429 INFO L82 PathProgramCache]: Analyzing trace with hash -456502825, now seen corresponding path program 6 times [2021-07-10 09:10:37,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 09:10:37,430 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907340123] [2021-07-10 09:10:37,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 09:10:37,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:10:37,837 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 4 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:10:37,837 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 09:10:37,837 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907340123] [2021-07-10 09:10:37,837 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907340123] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:10:37,837 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383074592] [2021-07-10 09:10:37,837 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 09:10:37,870 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-07-10 09:10:37,871 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 09:10:37,871 WARN L261 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 47 conjunts are in the unsatisfiable core [2021-07-10 09:10:37,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 09:10:38,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:38,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:38,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:38,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:38,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:38,745 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 09:10:38,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:38,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:38,748 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 09:10:38,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:38,749 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 09:10:38,751 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 09:10:38,784 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 09:10:38,784 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 [2021-07-10 09:10:38,857 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2021-07-10 09:10:38,900 INFO L628 ElimStorePlain]: treesize reduction 280, result has 11.1 percent of original size [2021-07-10 09:10:38,908 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-07-10 09:10:38,908 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:103, output treesize:22 [2021-07-10 09:10:38,969 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:10:38,970 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383074592] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:10:38,970 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 09:10:38,970 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 33 [2021-07-10 09:10:38,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222780506] [2021-07-10 09:10:38,970 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-07-10 09:10:38,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 09:10:38,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-07-10 09:10:38,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=990, Unknown=0, NotChecked=0, Total=1122 [2021-07-10 09:10:38,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:10:38,971 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 09:10:38,972 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 1.7647058823529411) internal successors, (60), 33 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 09:10:38,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 09:10:38,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 09:10:38,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 09:10:38,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:10:38,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 09:10:38,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 09:10:38,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 09:10:38,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:10:40,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 09:10:40,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 09:10:40,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 09:10:40,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:10:40,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 09:10:40,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 09:10:40,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 09:10:40,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 09:10:41,016 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-07-10 09:10:41,017 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 09:10:41,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 09:10:41,017 INFO L82 PathProgramCache]: Analyzing trace with hash -1994398761, now seen corresponding path program 7 times [2021-07-10 09:10:41,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 09:10:41,017 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890349130] [2021-07-10 09:10:41,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 09:10:41,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:10:41,502 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:10:41,502 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 09:10:41,502 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890349130] [2021-07-10 09:10:41,502 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890349130] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:10:41,502 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519659658] [2021-07-10 09:10:41,502 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 09:10:41,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:10:41,529 WARN L261 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 51 conjunts are in the unsatisfiable core [2021-07-10 09:10:41,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 09:10:42,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:42,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:42,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:42,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:42,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:42,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:42,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:42,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:42,101 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 09:10:42,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:42,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:42,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:42,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:42,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:42,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:42,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:42,106 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 09:10:42,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:42,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:42,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:42,111 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 09:10:42,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:42,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:42,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:42,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:42,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:42,115 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 09:10:42,115 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 09:10:42,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:42,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:42,117 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 09:10:42,119 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 [2021-07-10 09:10:42,120 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 09:10:42,127 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 09:10:42,128 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-10 09:10:42,128 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:107, output treesize:7 [2021-07-10 09:10:42,155 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:10:42,155 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519659658] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:10:42,155 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 09:10:42,156 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 16] total 32 [2021-07-10 09:10:42,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625579515] [2021-07-10 09:10:42,156 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-07-10 09:10:42,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 09:10:42,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-07-10 09:10:42,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=934, Unknown=0, NotChecked=0, Total=1056 [2021-07-10 09:10:42,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:10:42,157 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 09:10:42,157 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 2.0606060606060606) internal successors, (68), 32 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 09:10:42,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 09:10:42,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 09:10:42,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 09:10:42,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:10:42,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 09:10:42,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 09:10:42,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 09:10:42,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 09:10:42,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:10:43,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 09:10:43,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 09:10:43,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 09:10:43,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:10:43,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 09:10:43,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 09:10:43,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 09:10:43,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 09:10:43,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 09:10:44,065 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 09:10:44,066 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 09:10:44,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 09:10:44,066 INFO L82 PathProgramCache]: Analyzing trace with hash -113515305, now seen corresponding path program 8 times [2021-07-10 09:10:44,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 09:10:44,066 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004723587] [2021-07-10 09:10:44,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 09:10:44,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:10:44,588 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 16 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:10:44,588 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 09:10:44,588 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004723587] [2021-07-10 09:10:44,589 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004723587] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:10:44,589 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [632024637] [2021-07-10 09:10:44,589 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 09:10:44,626 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 09:10:44,627 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 09:10:44,627 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 59 conjunts are in the unsatisfiable core [2021-07-10 09:10:44,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 09:10:45,309 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 09:10:45,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:45,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:45,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:45,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:45,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:45,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:45,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:45,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:45,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:45,316 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 09:10:45,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:45,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:45,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:45,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:45,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:45,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:45,320 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 09:10:45,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:45,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:45,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:45,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:45,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:45,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:45,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:45,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:45,325 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 09:10:45,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:45,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:45,327 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 09:10:45,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:45,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:45,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:45,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:45,330 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 09:10:45,330 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 09:10:45,331 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 [2021-07-10 09:10:45,332 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 09:10:45,337 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 09:10:45,338 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-10 09:10:45,338 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:123, output treesize:7 [2021-07-10 09:10:45,362 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:10:45,362 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [632024637] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:10:45,362 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 09:10:45,362 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 18] total 36 [2021-07-10 09:10:45,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539681947] [2021-07-10 09:10:45,363 INFO L462 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-07-10 09:10:45,363 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 09:10:45,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-07-10 09:10:45,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=1192, Unknown=0, NotChecked=0, Total=1332 [2021-07-10 09:10:45,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:10:45,363 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 09:10:45,364 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 2.054054054054054) internal successors, (76), 36 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 09:10:45,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 09:10:45,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 09:10:45,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 09:10:45,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:10:45,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 09:10:45,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 09:10:45,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 09:10:45,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 09:10:45,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 09:10:45,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:10:47,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 09:10:47,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 09:10:47,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 09:10:47,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:10:47,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 09:10:47,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 09:10:47,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 09:10:47,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 09:10:47,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 09:10:47,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-10 09:10:47,699 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 09:10:47,699 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 09:10:47,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 09:10:47,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1143936215, now seen corresponding path program 9 times [2021-07-10 09:10:47,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 09:10:47,700 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199734038] [2021-07-10 09:10:47,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 09:10:47,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:10:48,345 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 25 proven. 103 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:10:48,346 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 09:10:48,346 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199734038] [2021-07-10 09:10:48,346 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199734038] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:10:48,346 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286746816] [2021-07-10 09:10:48,346 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 09:10:48,392 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-07-10 09:10:48,393 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 09:10:48,394 WARN L261 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 71 conjunts are in the unsatisfiable core [2021-07-10 09:10:48,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 09:10:52,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:52,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:52,659 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 09:10:52,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:52,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:52,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:52,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:52,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:52,670 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 09:10:52,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:52,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:52,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:52,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:52,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:52,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:52,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:52,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:52,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:52,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:52,689 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 09:10:52,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:52,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:52,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:52,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:52,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:52,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:52,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:52,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:52,705 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 09:10:52,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:52,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:10:52,975 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2021-07-10 09:10:52,975 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 09:10:52,976 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 [2021-07-10 09:10:53,822 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 242 [2021-07-10 09:10:54,100 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 262 [2021-07-10 09:10:54,353 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 297 DAG size of output: 308 [2021-07-10 09:10:54,815 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 221 [2021-07-10 09:10:55,111 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 271 [2021-07-10 09:10:55,690 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 221 [2021-07-10 09:10:55,864 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 242 [2021-07-10 09:10:56,549 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 211 [2021-07-10 09:10:56,930 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 276 [2021-07-10 09:10:57,649 WARN L205 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 345 DAG size of output: 342 [2021-07-10 09:10:58,434 WARN L205 SmtUtils]: Spent 775.00 ms on a formula simplification. DAG size of input: 396 DAG size of output: 412 [2021-07-10 09:10:59,633 WARN L205 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 503 DAG size of output: 520 [2021-07-10 09:11:01,414 WARN L205 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 641 DAG size of output: 665 [2021-07-10 09:11:03,534 WARN L205 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 673 DAG size of output: 697 [2021-07-10 09:11:04,251 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 298 [2021-07-10 09:11:04,482 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 335 DAG size of output: 333 [2021-07-10 09:11:04,764 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 371 DAG size of output: 370 [2021-07-10 09:11:05,313 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 331 DAG size of output: 334 [2021-07-10 09:11:05,890 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 468 DAG size of output: 477 [2021-07-10 09:11:06,837 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 307 [2021-07-10 09:11:07,495 WARN L205 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 622 DAG size of output: 634 [2021-07-10 09:11:08,293 WARN L205 SmtUtils]: Spent 795.00 ms on a formula simplification. DAG size of input: 666 DAG size of output: 678 [2021-07-10 09:11:09,661 WARN L205 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 823 DAG size of output: 833 [2021-07-10 09:11:10,386 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 207 [2021-07-10 09:11:10,540 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 222 [2021-07-10 09:11:10,903 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 270 [2021-07-10 09:11:11,285 WARN L205 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 350 DAG size of output: 347 [2021-07-10 09:11:12,101 WARN L205 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 413 DAG size of output: 411 [2021-07-10 09:11:14,473 WARN L205 SmtUtils]: Spent 2.37 s on a formula simplification. DAG size of input: 1066 DAG size of output: 1073 [2021-07-10 09:11:19,838 WARN L205 SmtUtils]: Spent 5.36 s on a formula simplification. DAG size of input: 1491 DAG size of output: 1519 [2021-07-10 09:11:25,223 WARN L205 SmtUtils]: Spent 5.38 s on a formula simplification. DAG size of input: 1491 DAG size of output: 1519 [2021-07-10 09:11:30,689 WARN L205 SmtUtils]: Spent 5.46 s on a formula simplification. DAG size of input: 1502 DAG size of output: 1530 [2021-07-10 09:11:33,137 WARN L205 SmtUtils]: Spent 2.44 s on a formula simplification. DAG size of input: 741 DAG size of output: 950 [2021-07-10 09:11:35,798 WARN L205 SmtUtils]: Spent 2.65 s on a formula simplification. DAG size of input: 736 DAG size of output: 1124 [2021-07-10 09:11:37,592 WARN L205 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 692 DAG size of output: 835 [2021-07-10 09:11:38,296 WARN L205 SmtUtils]: Spent 698.00 ms on a formula simplification. DAG size of input: 631 DAG size of output: 695 [2021-07-10 09:11:40,069 WARN L205 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 617 DAG size of output: 791 [2021-07-10 09:11:40,613 WARN L205 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 581 DAG size of output: 595 [2021-07-10 09:11:41,648 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 578 DAG size of output: 808 [2021-07-10 09:11:42,300 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 467 DAG size of output: 446 [2021-07-10 09:11:43,017 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 578 DAG size of output: 558 [2021-07-10 09:11:43,184 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 222 [2021-07-10 09:11:43,568 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 315 [2021-07-10 09:11:44,682 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 431 DAG size of output: 412 [2021-07-10 09:11:48,183 WARN L205 SmtUtils]: Spent 3.50 s on a formula simplification. DAG size of input: 1917 DAG size of output: 1769 [2021-07-10 09:11:53,320 WARN L205 SmtUtils]: Spent 5.13 s on a formula simplification. DAG size of input: 2194 DAG size of output: 2044 [2021-07-10 09:12:00,527 WARN L205 SmtUtils]: Spent 7.20 s on a formula simplification. DAG size of input: 2459 DAG size of output: 2323 [2021-07-10 09:12:01,091 WARN L205 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 587 [2021-07-10 09:12:01,301 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 536 DAG size of output: 541 [2021-07-10 09:12:01,788 WARN L205 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 358 DAG size of output: 446 [2021-07-10 09:12:01,976 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 223 [2021-07-10 09:12:02,337 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 305 DAG size of output: 257 [2021-07-10 09:12:02,555 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 393 DAG size of output: 351 [2021-07-10 09:12:03,180 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 411 DAG size of output: 387 [2021-07-10 09:12:03,812 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 557 DAG size of output: 531 [2021-07-10 09:12:04,454 WARN L205 SmtUtils]: Spent 639.00 ms on a formula simplification. DAG size of input: 771 DAG size of output: 708 [2021-07-10 09:12:04,947 WARN L205 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 350 [2021-07-10 09:12:05,189 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 354 [2021-07-10 09:12:05,978 WARN L205 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 471 DAG size of output: 443 [2021-07-10 09:12:06,603 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 336 DAG size of output: 311 [2021-07-10 09:12:07,357 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 366 DAG size of output: 344 [2021-07-10 09:12:08,541 WARN L205 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 734 DAG size of output: 696 [2021-07-10 09:12:10,855 WARN L205 SmtUtils]: Spent 2.31 s on a formula simplification. DAG size of input: 1237 DAG size of output: 1148 [2021-07-10 09:12:11,017 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 306 [2021-07-10 09:12:11,472 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 353 DAG size of output: 348 [2021-07-10 09:12:12,127 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 485 DAG size of output: 473 [2021-07-10 09:12:12,491 WARN L205 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 705 DAG size of output: 690 [2021-07-10 09:12:13,067 WARN L205 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 795 DAG size of output: 784 [2021-07-10 09:12:13,854 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 354 DAG size of output: 357 [2021-07-10 09:12:14,371 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 287 DAG size of output: 288 [2021-07-10 09:12:14,578 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 379 DAG size of output: 381 [2021-07-10 09:12:15,052 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 313 DAG size of output: 311 [2021-07-10 09:12:15,502 WARN L205 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 551 DAG size of output: 550 [2021-07-10 09:12:16,278 WARN L205 SmtUtils]: Spent 773.00 ms on a formula simplification. DAG size of input: 790 DAG size of output: 792 [2021-07-10 09:12:20,927 WARN L205 SmtUtils]: Spent 4.64 s on a formula simplification. DAG size of input: 2269 DAG size of output: 2166 [2021-07-10 09:12:28,072 WARN L205 SmtUtils]: Spent 7.06 s on a formula simplification. DAG size of input: 2617 DAG size of output: 2468 [2021-07-10 09:12:37,518 WARN L205 SmtUtils]: Spent 9.43 s on a formula simplification. DAG size of input: 2856 DAG size of output: 2716 [2021-07-10 09:12:56,891 WARN L205 SmtUtils]: Spent 19.36 s on a formula simplification. DAG size of input: 4301 DAG size of output: 4043 [2021-07-10 09:12:57,456 WARN L205 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 637 DAG size of output: 651 [2021-07-10 09:12:58,701 WARN L205 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 634 DAG size of output: 902 [2021-07-10 09:12:59,803 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 478 DAG size of output: 700 [2021-07-10 09:13:00,938 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 340 DAG size of output: 324 [2021-07-10 09:13:01,306 WARN L205 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 416 DAG size of output: 387 [2021-07-10 09:13:01,467 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 280 [2021-07-10 09:13:01,938 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 442 DAG size of output: 427 [2021-07-10 09:13:03,805 WARN L205 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 1172 DAG size of output: 1090 [2021-07-10 09:13:04,478 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 393 DAG size of output: 381 [2021-07-10 09:13:04,787 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 514 DAG size of output: 501 [2021-07-10 09:13:05,367 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 285 [2021-07-10 09:13:05,918 WARN L205 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 678 DAG size of output: 662 [2021-07-10 09:13:08,921 WARN L205 SmtUtils]: Spent 3.00 s on a formula simplification. DAG size of input: 1655 DAG size of output: 1556 [2021-07-10 09:13:13,385 WARN L205 SmtUtils]: Spent 4.46 s on a formula simplification. DAG size of input: 1952 DAG size of output: 1867 [2021-07-10 09:13:19,828 WARN L205 SmtUtils]: Spent 6.43 s on a formula simplification. DAG size of input: 2252 DAG size of output: 2166 [2021-07-10 09:13:30,371 WARN L205 SmtUtils]: Spent 10.36 s on a formula simplification. DAG size of input: 3203 DAG size of output: 2955 [2021-07-10 09:14:05,089 WARN L205 SmtUtils]: Spent 34.70 s on a formula simplification. DAG size of input: 6325 DAG size of output: 5851 [2021-07-10 09:14:05,232 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 701 [2021-07-10 09:14:07,609 WARN L205 SmtUtils]: Spent 2.37 s on a formula simplification. DAG size of input: 671 DAG size of output: 978 [2021-07-10 09:14:09,913 WARN L205 SmtUtils]: Spent 2.30 s on a formula simplification. DAG size of input: 668 DAG size of output: 961 [2021-07-10 09:14:12,839 WARN L205 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 665 DAG size of output: 974 [2021-07-10 09:14:13,221 WARN L205 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 285 [2021-07-10 09:14:13,385 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 193 [2021-07-10 09:14:13,719 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 341 DAG size of output: 337 [2021-07-10 09:14:14,122 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 428 DAG size of output: 416 [2021-07-10 09:14:14,493 WARN L205 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 506 DAG size of output: 453 [2021-07-10 09:14:15,117 WARN L205 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 615 DAG size of output: 563 [2021-07-10 09:14:15,235 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 200 [2021-07-10 09:14:15,514 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 262 [2021-07-10 09:14:16,358 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 316 [2021-07-10 09:14:17,130 WARN L205 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 583 DAG size of output: 563 [2021-07-10 09:14:17,572 WARN L205 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 303 DAG size of output: 394 [2021-07-10 09:14:18,872 WARN L205 SmtUtils]: Spent 607.00 ms on a formula simplification. DAG size of input: 658 DAG size of output: 639 [2021-07-10 09:14:24,429 WARN L205 SmtUtils]: Spent 5.55 s on a formula simplification. DAG size of input: 2009 DAG size of output: 1914 [2021-07-10 09:14:33,031 WARN L205 SmtUtils]: Spent 8.59 s on a formula simplification. DAG size of input: 2013 DAG size of output: 1916 [2021-07-10 09:14:44,928 WARN L205 SmtUtils]: Spent 11.89 s on a formula simplification. DAG size of input: 2325 DAG size of output: 2231 [2021-07-10 09:15:04,214 WARN L205 SmtUtils]: Spent 19.06 s on a formula simplification. DAG size of input: 3594 DAG size of output: 3167 [2021-07-10 09:16:06,295 WARN L205 SmtUtils]: Spent 1.03 m on a formula simplification. DAG size of input: 9326 DAG size of output: 8368 [2021-07-10 09:17:19,206 WARN L205 SmtUtils]: Spent 1.21 m on a formula simplification. DAG size of input: 9585 DAG size of output: 8636 [2021-07-10 09:17:22,466 WARN L205 SmtUtils]: Spent 3.22 s on a formula simplification. DAG size of input: 1088 DAG size of output: 1536 [2021-07-10 09:17:25,576 WARN L205 SmtUtils]: Spent 3.10 s on a formula simplification. DAG size of input: 1085 DAG size of output: 1490 [2021-07-10 09:17:25,735 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2021-07-10 09:17:25,909 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 263 [2021-07-10 09:17:26,045 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 260 [2021-07-10 09:17:26,493 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 280 DAG size of output: 281 [2021-07-10 09:17:26,706 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 285 DAG size of output: 284 [2021-07-10 09:17:27,007 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 336 [2021-07-10 09:17:27,462 WARN L205 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 423 DAG size of output: 401 [2021-07-10 09:17:28,067 WARN L205 SmtUtils]: Spent 602.00 ms on a formula simplification. DAG size of input: 427 DAG size of output: 403 [2021-07-10 09:17:28,443 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 367 [2021-07-10 09:17:28,783 WARN L205 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 359 [2021-07-10 09:17:29,282 WARN L205 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 275 DAG size of output: 364 [2021-07-10 09:17:30,469 WARN L205 SmtUtils]: Spent 664.00 ms on a formula simplification. DAG size of input: 628 DAG size of output: 589 [2021-07-10 09:17:31,420 WARN L205 SmtUtils]: Spent 947.00 ms on a formula simplification. DAG size of input: 633 DAG size of output: 592 [2021-07-10 09:17:32,812 WARN L205 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 757 DAG size of output: 712 [2021-07-10 09:17:32,924 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 244 [2021-07-10 09:17:33,037 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 243 [2021-07-10 09:17:33,143 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 233 [2021-07-10 09:17:33,655 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 332 DAG size of output: 322 [2021-07-10 09:17:33,875 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 380 DAG size of output: 368 [2021-07-10 09:17:34,224 WARN L205 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 435 DAG size of output: 422 [2021-07-10 09:17:34,748 WARN L205 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 493 DAG size of output: 469 [2021-07-10 09:17:37,070 WARN L205 SmtUtils]: Spent 2.32 s on a formula simplification. DAG size of input: 1092 DAG size of output: 1023 [2021-07-10 09:17:40,612 WARN L205 SmtUtils]: Spent 3.54 s on a formula simplification. DAG size of input: 1294 DAG size of output: 1202 [2021-07-10 09:17:41,146 WARN L205 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 343 DAG size of output: 412 [2021-07-10 09:17:41,666 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 236 [2021-07-10 09:17:41,938 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 295 DAG size of output: 297 [2021-07-10 09:17:42,307 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 350 DAG size of output: 352 [2021-07-10 09:17:42,798 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 326 [2021-07-10 09:17:43,075 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 350 [2021-07-10 09:17:43,663 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 534 DAG size of output: 493 [2021-07-10 09:17:44,154 WARN L205 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 641 DAG size of output: 602 [2021-07-10 09:17:44,888 WARN L205 SmtUtils]: Spent 731.00 ms on a formula simplification. DAG size of input: 779 DAG size of output: 741 [2021-07-10 09:17:46,141 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 987 DAG size of output: 950 [2021-07-10 09:17:47,938 WARN L205 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 1124 DAG size of output: 1088 [2021-07-10 09:17:50,834 WARN L205 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 1499 DAG size of output: 1406 [2021-07-10 09:17:51,366 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 340 [2021-07-10 09:17:51,556 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 353 [2021-07-10 09:17:52,249 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 587 DAG size of output: 571 [2021-07-10 09:17:52,591 WARN L205 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 727 DAG size of output: 707 [2021-07-10 09:17:53,113 WARN L205 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 816 DAG size of output: 802 [2021-07-10 09:17:53,620 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 339 DAG size of output: 333 [2021-07-10 09:17:54,455 WARN L205 SmtUtils]: Spent 832.00 ms on a formula simplification. DAG size of input: 1027 DAG size of output: 1003 [2021-07-10 09:17:54,701 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 298 DAG size of output: 366 [2021-07-10 09:17:54,838 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 322 [2021-07-10 09:17:54,956 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 306 [2021-07-10 09:17:55,418 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 609 DAG size of output: 586 [2021-07-10 09:17:55,786 WARN L205 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 693 DAG size of output: 674 [2021-07-10 09:17:56,393 WARN L205 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 818 DAG size of output: 794 [2021-07-10 09:17:56,547 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 312 [2021-07-10 09:17:57,185 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 555 DAG size of output: 532 [2021-07-10 09:17:57,599 WARN L205 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 699 DAG size of output: 676 [2021-07-10 09:17:58,581 WARN L205 SmtUtils]: Spent 655.00 ms on a formula simplification. DAG size of input: 845 DAG size of output: 815 [2021-07-10 09:17:59,060 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 293 DAG size of output: 301 [2021-07-10 09:17:59,707 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 535 DAG size of output: 499 [2021-07-10 09:17:59,956 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 664 DAG size of output: 632 [2021-07-10 09:18:00,142 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 293 DAG size of output: 335 [2021-07-10 09:18:00,246 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 297 [2021-07-10 09:18:00,350 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 299 [2021-07-10 09:18:01,221 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 567 DAG size of output: 517 [2021-07-10 09:18:01,544 WARN L205 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 684 DAG size of output: 639 [2021-07-10 09:18:02,026 WARN L205 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 804 DAG size of output: 760 [2021-07-10 09:18:02,749 WARN L205 SmtUtils]: Spent 718.00 ms on a formula simplification. DAG size of input: 917 DAG size of output: 878 [2021-07-10 09:18:03,833 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 1213 DAG size of output: 1168 [2021-07-10 09:18:06,236 WARN L205 SmtUtils]: Spent 2.40 s on a formula simplification. DAG size of input: 1965 DAG size of output: 1905 [2021-07-10 09:18:11,031 WARN L205 SmtUtils]: Spent 4.79 s on a formula simplification. DAG size of input: 2878 DAG size of output: 2788 [2021-07-10 09:18:19,172 WARN L205 SmtUtils]: Spent 8.13 s on a formula simplification. DAG size of input: 4237 DAG size of output: 3592 [2021-07-10 09:18:32,197 WARN L205 SmtUtils]: Spent 13.01 s on a formula simplification. DAG size of input: 5311 DAG size of output: 4573 [2021-07-10 09:18:51,713 WARN L205 SmtUtils]: Spent 19.49 s on a formula simplification. DAG size of input: 6289 DAG size of output: 5463 [2021-07-10 09:19:16,968 WARN L205 SmtUtils]: Spent 25.22 s on a formula simplification. DAG size of input: 6859 DAG size of output: 6051 [2021-07-10 09:19:48,597 WARN L205 SmtUtils]: Spent 31.60 s on a formula simplification. DAG size of input: 6979 DAG size of output: 6178 [2021-07-10 09:21:48,614 WARN L205 SmtUtils]: Spent 2.00 m on a formula simplification. DAG size of input: 15531 DAG size of output: 13741 [2021-07-10 09:23:48,379 WARN L205 SmtUtils]: Spent 1.99 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