/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-NewStatesSleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/threaded-sum-3.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-13 16:59:49,056 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-13 16:59:49,059 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-13 16:59:49,098 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-13 16:59:49,098 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-13 16:59:49,103 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-13 16:59:49,105 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-13 16:59:49,111 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-13 16:59:49,113 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-13 16:59:49,119 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-13 16:59:49,120 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-13 16:59:49,121 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-13 16:59:49,122 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-13 16:59:49,123 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-13 16:59:49,133 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-13 16:59:49,135 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-13 16:59:49,138 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-13 16:59:49,139 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-13 16:59:49,141 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-13 16:59:49,146 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-13 16:59:49,147 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-13 16:59:49,148 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-13 16:59:49,149 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-13 16:59:49,150 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-13 16:59:49,151 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-13 16:59:49,151 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-13 16:59:49,151 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-13 16:59:49,152 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-13 16:59:49,152 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-13 16:59:49,153 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-13 16:59:49,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-13 16:59:49,154 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-13 16:59:49,154 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-13 16:59:49,155 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-13 16:59:49,156 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-13 16:59:49,156 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-13 16:59:49,156 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-13 16:59:49,157 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-13 16:59:49,157 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-13 16:59:49,158 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-13 16:59:49,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-13 16:59:49,159 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-NewStatesSleep-NoLbe.epf [2021-06-13 16:59:49,178 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-13 16:59:49,179 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-13 16:59:49,179 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-13 16:59:49,179 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-13 16:59:49,180 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-13 16:59:49,180 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-13 16:59:49,181 INFO L138 SettingsManager]: * Use SBE=true [2021-06-13 16:59:49,181 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-13 16:59:49,181 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-13 16:59:49,181 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-13 16:59:49,181 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-13 16:59:49,181 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-13 16:59:49,182 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-13 16:59:49,182 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-13 16:59:49,182 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-13 16:59:49,182 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-13 16:59:49,182 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-13 16:59:49,182 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-13 16:59:49,182 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-13 16:59:49,183 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-13 16:59:49,183 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-13 16:59:49,183 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-13 16:59:49,183 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-13 16:59:49,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 16:59:49,183 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-13 16:59:49,183 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-13 16:59:49,184 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-13 16:59:49,184 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-13 16:59:49,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-13 16:59:49,184 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-13 16:59:49,184 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-13 16:59:49,184 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-13 16:59:49,185 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-13 16:59:49,185 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-13 16:59:49,471 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-13 16:59:49,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-13 16:59:49,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-13 16:59:49,492 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-13 16:59:49,493 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-13 16:59:49,494 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/threaded-sum-3.wvr.bpl [2021-06-13 16:59:49,494 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/threaded-sum-3.wvr.bpl' [2021-06-13 16:59:49,515 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-13 16:59:49,516 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-13 16:59:49,518 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-13 16:59:49,518 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-13 16:59:49,518 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-13 16:59:49,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 04:59:49" (1/1) ... [2021-06-13 16:59:49,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 04:59:49" (1/1) ... [2021-06-13 16:59:49,544 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-13 16:59:49,547 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-13 16:59:49,547 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-13 16:59:49,547 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-13 16:59:49,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 04:59:49" (1/1) ... [2021-06-13 16:59:49,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 04:59:49" (1/1) ... [2021-06-13 16:59:49,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 04:59:49" (1/1) ... [2021-06-13 16:59:49,556 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 04:59:49" (1/1) ... [2021-06-13 16:59:49,560 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 04:59:49" (1/1) ... [2021-06-13 16:59:49,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 04:59:49" (1/1) ... [2021-06-13 16:59:49,565 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 04:59:49" (1/1) ... [2021-06-13 16:59:49,568 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-13 16:59:49,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-13 16:59:49,569 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-13 16:59:49,569 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-13 16:59:49,571 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 04:59:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 16:59:49,635 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-13 16:59:49,636 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-13 16:59:49,636 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-13 16:59:49,636 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-13 16:59:49,636 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-13 16:59:49,636 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-13 16:59:49,637 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-13 16:59:49,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-13 16:59:49,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-13 16:59:49,638 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-13 16:59:49,639 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-13 16:59:49,639 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-13 16:59:49,640 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-13 16:59:49,861 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-13 16:59:49,862 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-13 16:59:49,863 INFO L202 PluginConnector]: Adding new model threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 04:59:49 BoogieIcfgContainer [2021-06-13 16:59:49,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-13 16:59:49,865 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-13 16:59:49,865 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-13 16:59:49,867 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-13 16:59:49,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 04:59:49" (1/2) ... [2021-06-13 16:59:49,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31fda714 and model type threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 04:59:49, skipping insertion in model container [2021-06-13 16:59:49,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 04:59:49" (2/2) ... [2021-06-13 16:59:49,870 INFO L111 eAbstractionObserver]: Analyzing ICFG threaded-sum-3.wvr.bpl [2021-06-13 16:59:49,874 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-13 16:59:49,874 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-13 16:59:49,875 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-13 16:59:49,875 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-13 16:59:49,908 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-13 16:59:49,928 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-13 16:59:49,967 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 16:59:49,967 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 16:59:49,967 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 16:59:49,967 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 16:59:49,967 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 16:59:49,967 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 16:59:49,967 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 16:59:49,968 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-13 16:59:50,068 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 16:59:50,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 16:59:50,073 INFO L82 PathProgramCache]: Analyzing trace with hash -1056072297, now seen corresponding path program 1 times [2021-06-13 16:59:50,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 16:59:50,084 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875780227] [2021-06-13 16:59:50,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 16:59:50,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 16:59:50,286 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-13 16:59:50,287 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 16:59:50,287 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875780227] [2021-06-13 16:59:50,287 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875780227] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 16:59:50,288 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 16:59:50,288 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-13 16:59:50,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039322802] [2021-06-13 16:59:50,292 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-13 16:59:50,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 16:59:50,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-13 16:59:50,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-13 16:59:50,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 16:59:50,308 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 16:59:50,309 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 16:59:50,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 16:59:50,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 16:59:50,439 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-13 16:59:50,439 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 16:59:50,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 16:59:50,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1518795247, now seen corresponding path program 2 times [2021-06-13 16:59:50,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 16:59:50,444 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670925182] [2021-06-13 16:59:50,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 16:59:50,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 16:59:50,567 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 16:59:50,568 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 16:59:50,568 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670925182] [2021-06-13 16:59:50,568 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670925182] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 16:59:50,568 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062000781] [2021-06-13 16:59:50,568 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 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 16:59:50,622 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 16:59:50,623 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 16:59:50,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-13 16:59:50,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 16:59:50,884 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 16:59:50,884 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062000781] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 16:59:50,885 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 16:59:50,885 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 10 [2021-06-13 16:59:50,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782966940] [2021-06-13 16:59:50,886 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-13 16:59:50,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 16:59:50,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-13 16:59:50,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-06-13 16:59:50,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 16:59:50,887 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 16:59:50,888 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 3.4) internal successors, (34), 10 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 16:59:50,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 16:59:50,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 16:59:50,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 16:59:50,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-13 16:59:51,192 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 16:59:51,193 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 16:59:51,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 16:59:51,193 INFO L82 PathProgramCache]: Analyzing trace with hash 256478609, now seen corresponding path program 3 times [2021-06-13 16:59:51,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 16:59:51,194 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497600503] [2021-06-13 16:59:51,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 16:59:51,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 16:59:51,265 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-13 16:59:51,265 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 16:59:51,265 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497600503] [2021-06-13 16:59:51,265 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497600503] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 16:59:51,265 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138160549] [2021-06-13 16:59:51,266 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 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 16:59:51,314 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-13 16:59:51,314 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 16:59:51,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 6 conjunts are in the unsatisfiable core [2021-06-13 16:59:51,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 16:59:51,407 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-13 16:59:51,407 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138160549] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 16:59:51,407 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 16:59:51,407 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-13 16:59:51,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663424767] [2021-06-13 16:59:51,408 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-13 16:59:51,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 16:59:51,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-13 16:59:51,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-13 16:59:51,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 16:59:51,409 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 16:59:51,409 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 16:59:51,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 16:59:51,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-13 16:59:51,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 16:59:51,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 16:59:51,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-13 16:59:51,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-13 16:59:51,691 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 16:59:51,691 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 16:59:51,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 16:59:51,693 INFO L82 PathProgramCache]: Analyzing trace with hash 1881810703, now seen corresponding path program 4 times [2021-06-13 16:59:51,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 16:59:51,694 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605043807] [2021-06-13 16:59:51,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 16:59:51,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 16:59:51,770 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-06-13 16:59:51,771 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 16:59:51,771 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605043807] [2021-06-13 16:59:51,771 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605043807] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 16:59:51,771 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 16:59:51,771 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-13 16:59:51,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316303215] [2021-06-13 16:59:51,772 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-13 16:59:51,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 16:59:51,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-13 16:59:51,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-13 16:59:51,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 16:59:51,773 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 16:59:51,773 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 16:59:51,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 16:59:51,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-13 16:59:51,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-13 16:59:51,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 16:59:51,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 16:59:51,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-13 16:59:51,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-13 16:59:51,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 16:59:51,792 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-13 16:59:51,792 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 16:59:51,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 16:59:51,792 INFO L82 PathProgramCache]: Analyzing trace with hash 691881653, now seen corresponding path program 5 times [2021-06-13 16:59:51,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 16:59:51,793 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765742730] [2021-06-13 16:59:51,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 16:59:51,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 16:59:51,875 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-13 16:59:51,875 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 16:59:51,875 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765742730] [2021-06-13 16:59:51,875 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765742730] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 16:59:51,876 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054239876] [2021-06-13 16:59:51,876 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 16:59:51,914 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-06-13 16:59:51,914 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 16:59:51,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-13 16:59:51,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 16:59:51,991 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-13 16:59:51,991 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2054239876] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 16:59:51,991 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 16:59:51,991 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2021-06-13 16:59:51,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902949586] [2021-06-13 16:59:51,993 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-13 16:59:51,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 16:59:51,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-13 16:59:51,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-06-13 16:59:51,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 16:59:51,996 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 16:59:51,996 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 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) [2021-06-13 16:59:51,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 16:59:51,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-13 16:59:51,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-13 16:59:51,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 16:59:51,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 16:59:52,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 16:59:52,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-13 16:59:52,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-13 16:59:52,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 16:59:52,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-13 16:59:52,364 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 16:59:52,365 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 16:59:52,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 16:59:52,365 INFO L82 PathProgramCache]: Analyzing trace with hash 486004813, now seen corresponding path program 6 times [2021-06-13 16:59:52,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 16:59:52,366 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242415090] [2021-06-13 16:59:52,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 16:59:52,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 16:59:52,783 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 16:59:52,783 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 16:59:52,784 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242415090] [2021-06-13 16:59:52,784 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242415090] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 16:59:52,784 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259680321] [2021-06-13 16:59:52,785 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 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 16:59:52,832 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-06-13 16:59:52,832 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 16:59:52,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 19 conjunts are in the unsatisfiable core [2021-06-13 16:59:52,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 16:59:53,663 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 16:59:53,664 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259680321] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 16:59:53,664 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 16:59:53,664 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2021-06-13 16:59:53,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050106344] [2021-06-13 16:59:53,665 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-06-13 16:59:53,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 16:59:53,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-06-13 16:59:53,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=900, Unknown=0, NotChecked=0, Total=1056 [2021-06-13 16:59:53,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 16:59:53,667 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 16:59:53,667 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 2.121212121212121) internal successors, (70), 32 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 16:59:53,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 16:59:53,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-13 16:59:53,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-13 16:59:53,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 16:59:53,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-13 16:59:53,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 16:59:53,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 16:59:53,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-13 16:59:53,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-13 16:59:53,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 16:59:53,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-13 16:59:53,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-13 16:59:54,057 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 16:59:54,057 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 16:59:54,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 16:59:54,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1472166929, now seen corresponding path program 7 times [2021-06-13 16:59:54,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 16:59:54,058 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515882941] [2021-06-13 16:59:54,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 16:59:54,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 16:59:54,567 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-13 16:59:54,567 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 16:59:54,567 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515882941] [2021-06-13 16:59:54,567 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515882941] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 16:59:54,568 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793039997] [2021-06-13 16:59:54,568 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 16:59:54,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 16:59:54,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 22 conjunts are in the unsatisfiable core [2021-06-13 16:59:54,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 16:59:55,317 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 38 [2021-06-13 16:59:55,987 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 16:59:55,987 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [793039997] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 16:59:55,987 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 16:59:55,987 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 35 [2021-06-13 16:59:55,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22619721] [2021-06-13 16:59:55,989 INFO L462 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-06-13 16:59:55,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 16:59:55,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-06-13 16:59:55,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=1073, Unknown=0, NotChecked=0, Total=1260 [2021-06-13 16:59:55,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 16:59:55,990 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 16:59:55,990 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 2.138888888888889) internal successors, (77), 35 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 16:59:55,990 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 16:59:55,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-13 16:59:55,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-13 16:59:55,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 16:59:55,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-13 16:59:55,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-13 16:59:55,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 16:59:56,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 16:59:56,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-13 16:59:56,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-13 16:59:56,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 16:59:56,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-13 16:59:56,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-13 16:59:56,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-13 16:59:56,660 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 16:59:56,661 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 16:59:56,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 16:59:56,661 INFO L82 PathProgramCache]: Analyzing trace with hash 629939601, now seen corresponding path program 8 times [2021-06-13 16:59:56,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 16:59:56,661 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637506844] [2021-06-13 16:59:56,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 16:59:56,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 16:59:57,251 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-06-13 16:59:57,252 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 16:59:57,252 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637506844] [2021-06-13 16:59:57,252 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637506844] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 16:59:57,252 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382821566] [2021-06-13 16:59:57,252 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 16:59:57,303 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 16:59:57,303 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 16:59:57,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 24 conjunts are in the unsatisfiable core [2021-06-13 16:59:57,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 16:59:58,964 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 16:59:58,965 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1382821566] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 16:59:58,965 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 16:59:58,965 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 21] total 37 [2021-06-13 16:59:58,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839378166] [2021-06-13 16:59:58,965 INFO L462 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-06-13 16:59:58,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 16:59:58,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-06-13 16:59:58,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=1214, Unknown=0, NotChecked=0, Total=1406 [2021-06-13 16:59:58,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 16:59:58,967 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 16:59:58,967 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 38 states, 38 states have (on average 2.1315789473684212) internal successors, (81), 37 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 16:59:58,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 16:59:58,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-13 16:59:58,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-13 16:59:58,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 16:59:58,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-13 16:59:58,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-13 16:59:58,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-13 16:59:58,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 16:59:59,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 16:59:59,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-13 16:59:59,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-13 16:59:59,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 16:59:59,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-13 16:59:59,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-13 16:59:59,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-13 16:59:59,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-13 16:59:59,632 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 16:59:59,633 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 16:59:59,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 16:59:59,633 INFO L82 PathProgramCache]: Analyzing trace with hash 909239347, now seen corresponding path program 9 times [2021-06-13 16:59:59,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 16:59:59,633 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060061588] [2021-06-13 16:59:59,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 16:59:59,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 17:00:01,061 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 1 proven. 97 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 17:00:01,062 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 17:00:01,062 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060061588] [2021-06-13 17:00:01,062 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060061588] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 17:00:01,062 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290063387] [2021-06-13 17:00:01,062 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 17:00:01,103 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-06-13 17:00:01,104 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 17:00:01,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 30 conjunts are in the unsatisfiable core [2021-06-13 17:00:01,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 17:00:02,362 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2021-06-13 17:00:02,781 WARN L205 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 105 [2021-06-13 17:00:03,158 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-06-13 17:00:03,666 WARN L205 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 103 [2021-06-13 17:00:04,152 WARN L205 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 86 [2021-06-13 17:00:04,637 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 108 [2021-06-13 17:00:04,851 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-06-13 17:00:05,179 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 76 [2021-06-13 17:00:05,273 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 17:00:05,274 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290063387] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 17:00:05,274 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 17:00:05,274 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 44 [2021-06-13 17:00:05,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972169438] [2021-06-13 17:00:05,274 INFO L462 AbstractCegarLoop]: Interpolant automaton has 45 states [2021-06-13 17:00:05,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 17:00:05,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-06-13 17:00:05,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=1793, Unknown=0, NotChecked=0, Total=1980 [2021-06-13 17:00:05,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 17:00:05,276 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 17:00:05,276 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 45 states, 45 states have (on average 2.1333333333333333) internal successors, (96), 44 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 17:00:05,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 17:00:05,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-13 17:00:05,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-13 17:00:05,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 17:00:05,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-13 17:00:05,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-13 17:00:05,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-13 17:00:05,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-13 17:00:05,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 17:00:05,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 17:00:05,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-13 17:00:05,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-13 17:00:05,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 17:00:05,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-13 17:00:05,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-13 17:00:05,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-13 17:00:05,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-13 17:00:05,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-13 17:00:06,093 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2021-06-13 17:00:06,093 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 17:00:06,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 17:00:06,094 INFO L82 PathProgramCache]: Analyzing trace with hash 2062020249, now seen corresponding path program 10 times [2021-06-13 17:00:06,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 17:00:06,094 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291387395] [2021-06-13 17:00:06,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 17:00:06,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 17:00:07,170 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 1 proven. 111 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-06-13 17:00:07,171 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 17:00:07,171 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291387395] [2021-06-13 17:00:07,171 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291387395] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 17:00:07,171 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359900255] [2021-06-13 17:00:07,171 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 17:00:07,214 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-13 17:00:07,214 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 17:00:07,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 32 conjunts are in the unsatisfiable core [2021-06-13 17:00:07,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 17:00:08,716 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-06-13 17:00:08,946 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-06-13 17:00:09,188 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-06-13 17:00:09,722 WARN L205 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 103 [2021-06-13 17:00:09,935 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-06-13 17:00:10,253 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-06-13 17:00:10,502 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-06-13 17:00:10,881 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2021-06-13 17:00:11,000 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 17:00:11,001 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359900255] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 17:00:11,001 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 17:00:11,001 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 27] total 43 [2021-06-13 17:00:11,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907982161] [2021-06-13 17:00:11,002 INFO L462 AbstractCegarLoop]: Interpolant automaton has 44 states [2021-06-13 17:00:11,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 17:00:11,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-06-13 17:00:11,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=1655, Unknown=0, NotChecked=0, Total=1892 [2021-06-13 17:00:11,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 17:00:11,004 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 17:00:11,004 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 44 states, 44 states have (on average 2.159090909090909) internal successors, (95), 43 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 17:00:11,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 17:00:11,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-13 17:00:11,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-13 17:00:11,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 17:00:11,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-13 17:00:11,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-13 17:00:11,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-13 17:00:11,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-13 17:00:11,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-13 17:00:11,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 17:00:12,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 17:00:12,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-13 17:00:12,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-13 17:00:12,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 17:00:12,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-13 17:00:12,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-13 17:00:12,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-13 17:00:12,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-13 17:00:12,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-13 17:00:12,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-13 17:00:12,264 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 17:00:12,265 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 17:00:12,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 17:00:12,266 INFO L82 PathProgramCache]: Analyzing trace with hash 1210673791, now seen corresponding path program 11 times [2021-06-13 17:00:12,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 17:00:12,266 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241369139] [2021-06-13 17:00:12,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 17:00:12,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 17:00:13,175 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 32 [2021-06-13 17:00:13,758 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 28 [2021-06-13 17:00:13,956 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 1 proven. 156 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-06-13 17:00:13,956 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 17:00:13,956 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241369139] [2021-06-13 17:00:13,956 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241369139] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 17:00:13,956 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547637807] [2021-06-13 17:00:13,956 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 17:00:14,006 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 15 check-sat command(s) [2021-06-13 17:00:14,006 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 17:00:14,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 37 conjunts are in the unsatisfiable core [2021-06-13 17:00:14,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 17:00:15,168 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-06-13 17:00:15,826 WARN L205 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 130 [2021-06-13 17:00:16,488 WARN L205 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2021-06-13 17:00:17,904 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 217 DAG size of output: 183 [2021-06-13 17:00:18,963 WARN L205 SmtUtils]: Spent 641.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 170 [2021-06-13 17:00:20,086 WARN L205 SmtUtils]: Spent 811.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 146 [2021-06-13 17:00:21,278 WARN L205 SmtUtils]: Spent 952.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 136 [2021-06-13 17:00:22,198 WARN L205 SmtUtils]: Spent 614.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 145 [2021-06-13 17:00:23,470 WARN L205 SmtUtils]: Spent 953.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 178 [2021-06-13 17:00:24,071 WARN L205 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2021-06-13 17:00:24,879 WARN L205 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 119 [2021-06-13 17:00:25,138 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 17:00:25,138 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547637807] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 17:00:25,138 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 17:00:25,138 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 30] total 47 [2021-06-13 17:00:25,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465236968] [2021-06-13 17:00:25,139 INFO L462 AbstractCegarLoop]: Interpolant automaton has 48 states [2021-06-13 17:00:25,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 17:00:25,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-06-13 17:00:25,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=1980, Unknown=0, NotChecked=0, Total=2256 [2021-06-13 17:00:25,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 17:00:25,140 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 17:00:25,140 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 48 states, 48 states have (on average 2.1666666666666665) internal successors, (104), 47 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 17:00:25,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 17:00:25,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-13 17:00:25,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-13 17:00:25,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 17:00:25,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-13 17:00:25,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-13 17:00:25,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-13 17:00:25,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-13 17:00:25,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-13 17:00:25,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-13 17:00:25,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 17:00:26,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 17:00:26,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-13 17:00:26,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-13 17:00:26,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 17:00:26,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-13 17:00:26,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-13 17:00:26,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-13 17:00:26,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-13 17:00:26,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-13 17:00:26,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-13 17:00:26,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-13 17:00:26,512 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 17:00:26,512 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 17:00:26,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 17:00:26,513 INFO L82 PathProgramCache]: Analyzing trace with hash 779501379, now seen corresponding path program 12 times [2021-06-13 17:00:26,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 17:00:26,513 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101316393] [2021-06-13 17:00:26,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 17:00:26,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 17:00:27,655 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 97 [2021-06-13 17:00:27,828 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 27 [2021-06-13 17:00:28,084 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 113 [2021-06-13 17:00:28,472 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 29 [2021-06-13 17:00:28,642 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 29 [2021-06-13 17:00:28,932 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 2 proven. 192 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2021-06-13 17:00:28,933 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 17:00:28,933 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101316393] [2021-06-13 17:00:28,933 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101316393] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 17:00:28,933 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156459113] [2021-06-13 17:00:28,933 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 17:00:28,988 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 17 check-sat command(s) [2021-06-13 17:00:28,988 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 17:00:28,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 38 conjunts are in the unsatisfiable core [2021-06-13 17:00:28,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 17:00:30,302 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 82 [2021-06-13 17:00:30,901 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 141 [2021-06-13 17:00:31,608 WARN L205 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 165 [2021-06-13 17:00:32,774 WARN L205 SmtUtils]: Spent 827.00 ms on a formula simplification. DAG size of input: 234 DAG size of output: 197 [2021-06-13 17:00:33,833 WARN L205 SmtUtils]: Spent 721.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 183 [2021-06-13 17:00:34,910 WARN L205 SmtUtils]: Spent 775.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 181 [2021-06-13 17:00:36,034 WARN L205 SmtUtils]: Spent 839.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 162 [2021-06-13 17:00:36,550 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-06-13 17:00:37,369 WARN L205 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 174 [2021-06-13 17:00:37,994 WARN L205 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2021-06-13 17:00:38,507 WARN L205 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2021-06-13 17:00:39,620 WARN L205 SmtUtils]: Spent 802.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 155 [2021-06-13 17:00:39,924 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 282 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 17:00:39,924 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156459113] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 17:00:39,924 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 17:00:39,924 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 32] total 48 [2021-06-13 17:00:39,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253700393] [2021-06-13 17:00:39,925 INFO L462 AbstractCegarLoop]: Interpolant automaton has 49 states [2021-06-13 17:00:39,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 17:00:39,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-06-13 17:00:39,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=2073, Unknown=0, NotChecked=0, Total=2352 [2021-06-13 17:00:39,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 17:00:39,926 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 17:00:39,926 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 49 states, 49 states have (on average 2.183673469387755) internal successors, (107), 48 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 17:00:39,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 17:00:39,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-13 17:00:39,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-13 17:00:39,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 17:00:39,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-13 17:00:39,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-13 17:00:39,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-13 17:00:39,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-13 17:00:39,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-13 17:00:39,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-06-13 17:00:39,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-13 17:00:39,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 17:00:41,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 17:00:41,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-13 17:00:41,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-13 17:00:41,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 17:00:41,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-13 17:00:41,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-13 17:00:41,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-13 17:00:41,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-13 17:00:41,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-13 17:00:41,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-13 17:00:41,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-13 17:00:41,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-13 17:00:41,331 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable200 [2021-06-13 17:00:41,332 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 17:00:41,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 17:00:41,332 INFO L82 PathProgramCache]: Analyzing trace with hash 487287013, now seen corresponding path program 13 times [2021-06-13 17:00:41,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 17:00:41,332 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639826304] [2021-06-13 17:00:41,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 17:00:41,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 17:00:42,898 WARN L205 SmtUtils]: Spent 799.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 37 [2021-06-13 17:00:44,237 WARN L205 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 96 DAG size of output: 30 [2021-06-13 17:00:46,254 WARN L205 SmtUtils]: Spent 2.01 s on a formula simplification. DAG size of input: 118 DAG size of output: 54 [2021-06-13 17:00:51,151 WARN L205 SmtUtils]: Spent 4.88 s on a formula simplification. DAG size of input: 120 DAG size of output: 77 [2021-06-13 17:00:56,465 WARN L205 SmtUtils]: Spent 5.29 s on a formula simplification. DAG size of input: 125 DAG size of output: 59 [2021-06-13 17:01:02,867 WARN L205 SmtUtils]: Spent 6.38 s on a formula simplification. DAG size of input: 127 DAG size of output: 47 [2021-06-13 17:01:08,243 WARN L205 SmtUtils]: Spent 5.36 s on a formula simplification. DAG size of input: 114 DAG size of output: 47 [2021-06-13 17:01:13,425 WARN L205 SmtUtils]: Spent 5.17 s on a formula simplification. DAG size of input: 112 DAG size of output: 47 [2021-06-13 17:01:18,418 WARN L205 SmtUtils]: Spent 4.98 s on a formula simplification. DAG size of input: 117 DAG size of output: 49 [2021-06-13 17:01:23,602 WARN L205 SmtUtils]: Spent 5.17 s on a formula simplification. DAG size of input: 116 DAG size of output: 48 [2021-06-13 17:01:31,050 WARN L205 SmtUtils]: Spent 7.39 s on a formula simplification. DAG size of input: 119 DAG size of output: 39 [2021-06-13 17:01:37,313 WARN L205 SmtUtils]: Spent 6.20 s on a formula simplification. DAG size of input: 128 DAG size of output: 46 [2021-06-13 17:01:47,275 WARN L205 SmtUtils]: Spent 9.94 s on a formula simplification. DAG size of input: 186 DAG size of output: 96 [2021-06-13 17:01:47,431 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 29 [2021-06-13 17:01:52,980 WARN L205 SmtUtils]: Spent 5.55 s on a formula simplification. DAG size of input: 155 DAG size of output: 112 [2021-06-13 17:02:23,237 WARN L205 SmtUtils]: Spent 30.22 s on a formula simplification. DAG size of input: 171 DAG size of output: 105 [2021-06-13 17:02:57,452 WARN L205 SmtUtils]: Spent 34.18 s on a formula simplification. DAG size of input: 171 DAG size of output: 101 [2021-06-13 17:02:57,594 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 25 [2021-06-13 17:03:22,301 WARN L205 SmtUtils]: Spent 24.70 s on a formula simplification. DAG size of input: 169 DAG size of output: 99 [2021-06-13 17:03:22,466 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 28 [2021-06-13 17:03:22,979 WARN L205 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 77 [2021-06-13 17:03:23,910 WARN L205 SmtUtils]: Spent 814.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 88 [2021-06-13 17:03:24,083 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 31 [2021-06-13 17:03:24,258 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 83 [2021-06-13 17:03:24,397 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 31 [2021-06-13 17:03:24,739 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 4 proven. 252 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-06-13 17:03:24,739 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 17:03:24,739 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639826304] [2021-06-13 17:03:24,740 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639826304] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 17:03:24,740 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550587661] [2021-06-13 17:03:24,740 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 17:03:24,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 17:03:24,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 40 conjunts are in the unsatisfiable core [2021-06-13 17:03:24,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 17:03:26,415 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 88 [2021-06-13 17:03:27,110 WARN L205 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 152 [2021-06-13 17:03:27,868 WARN L205 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 177 [2021-06-13 17:03:29,593 WARN L205 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 251 DAG size of output: 211 [2021-06-13 17:03:30,647 WARN L205 SmtUtils]: Spent 726.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 196 [2021-06-13 17:03:31,814 WARN L205 SmtUtils]: Spent 871.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 196 [2021-06-13 17:03:33,224 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 218 DAG size of output: 173 [2021-06-13 17:03:33,720 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2021-06-13 17:03:34,559 WARN L205 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 181 [2021-06-13 17:03:35,272 WARN L205 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-06-13 17:03:35,938 WARN L205 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-06-13 17:03:36,958 WARN L205 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 273 [2021-06-13 17:03:37,787 WARN L205 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2021-06-13 17:03:39,281 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 192 DAG size of output: 192 [2021-06-13 17:03:39,814 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 361 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 17:03:39,814 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [550587661] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 17:03:39,814 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 17:03:39,814 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 35] total 53 [2021-06-13 17:03:39,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504327414] [2021-06-13 17:03:39,815 INFO L462 AbstractCegarLoop]: Interpolant automaton has 54 states [2021-06-13 17:03:39,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 17:03:39,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2021-06-13 17:03:39,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=296, Invalid=2566, Unknown=0, NotChecked=0, Total=2862 [2021-06-13 17:03:39,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 17:03:39,816 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 17:03:39,816 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 54 states, 54 states have (on average 2.1666666666666665) internal successors, (117), 53 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 17:03:39,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 17:03:39,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-13 17:03:39,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-13 17:03:39,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 17:03:39,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-13 17:03:39,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-13 17:03:39,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-13 17:03:39,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-13 17:03:39,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-13 17:03:39,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-06-13 17:03:39,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-13 17:03:39,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-13 17:03:39,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 17:03:41,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 17:03:41,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-13 17:03:41,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-13 17:03:41,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 17:03:41,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-13 17:03:41,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-13 17:03:41,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-13 17:03:41,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-13 17:03:41,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-13 17:03:41,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-13 17:03:41,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-13 17:03:41,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-13 17:03:41,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-13 17:03:41,253 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 17:03:41,253 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 17:03:41,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 17:03:41,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1152434968, now seen corresponding path program 14 times [2021-06-13 17:03:41,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 17:03:41,253 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550305808] [2021-06-13 17:03:41,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 17:03:41,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 17:03:42,807 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 47 [2021-06-13 17:03:42,995 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 45 [2021-06-13 17:03:43,110 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 44 [2021-06-13 17:03:43,324 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 44 [2021-06-13 17:03:43,794 WARN L205 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 49 [2021-06-13 17:03:44,197 WARN L205 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 48 [2021-06-13 17:03:44,803 WARN L205 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 52 [2021-06-13 17:03:46,759 WARN L205 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 191 DAG size of output: 55 [2021-06-13 17:03:47,782 WARN L205 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 235 DAG size of output: 76 [2021-06-13 17:03:47,902 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 23 [2021-06-13 17:03:49,097 WARN L205 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 203 DAG size of output: 58 [2021-06-13 17:03:53,870 WARN L205 SmtUtils]: Spent 4.75 s on a formula simplification. DAG size of input: 196 DAG size of output: 61 [2021-06-13 17:03:58,097 WARN L205 SmtUtils]: Spent 4.21 s on a formula simplification. DAG size of input: 196 DAG size of output: 63 [2021-06-13 17:04:01,109 WARN L205 SmtUtils]: Spent 2.93 s on a formula simplification. DAG size of input: 180 DAG size of output: 61 [2021-06-13 17:04:06,328 WARN L205 SmtUtils]: Spent 5.13 s on a formula simplification. DAG size of input: 161 DAG size of output: 67 [2021-06-13 17:04:09,323 WARN L205 SmtUtils]: Spent 2.90 s on a formula simplification. DAG size of input: 138 DAG size of output: 63 [2021-06-13 17:04:10,543 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 134 DAG size of output: 56 [2021-06-13 17:04:11,010 WARN L205 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 53 [2021-06-13 17:04:11,513 WARN L205 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 29 [2021-06-13 17:04:11,832 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 37 [2021-06-13 17:04:12,162 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 36 [2021-06-13 17:04:12,504 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 37 [2021-06-13 17:04:12,861 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 37 [2021-06-13 17:04:13,061 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 4 proven. 339 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2021-06-13 17:04:13,061 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 17:04:13,061 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550305808] [2021-06-13 17:04:13,061 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550305808] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 17:04:13,062 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1904057091] [2021-06-13 17:04:13,062 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 17:04:13,127 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 17:04:13,127 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 17:04:13,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 49 conjunts are in the unsatisfiable core [2021-06-13 17:04:13,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 17:04:14,873 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2021-06-13 17:04:15,308 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-06-13 17:04:15,603 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2021-06-13 17:04:16,328 WARN L205 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 158 [2021-06-13 17:04:16,776 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2021-06-13 17:04:17,533 WARN L205 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 175 [2021-06-13 17:04:18,303 WARN L205 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 163 [2021-06-13 17:04:19,157 WARN L205 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 162 [2021-06-13 17:04:19,670 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2021-06-13 17:04:20,816 WARN L205 SmtUtils]: Spent 795.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 199 [2021-06-13 17:04:21,490 WARN L205 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-06-13 17:04:22,386 WARN L205 SmtUtils]: Spent 490.00 ms on a formula simplification that was a NOOP. DAG size: 228 [2021-06-13 17:04:23,164 WARN L205 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2021-06-13 17:04:23,911 WARN L205 SmtUtils]: Spent 493.00 ms on a formula simplification that was a NOOP. DAG size: 230 [2021-06-13 17:04:24,672 WARN L205 SmtUtils]: Spent 475.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2021-06-13 17:04:26,082 WARN L205 SmtUtils]: Spent 972.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 225 [2021-06-13 17:04:26,898 WARN L205 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-06-13 17:04:27,946 WARN L205 SmtUtils]: Spent 547.00 ms on a formula simplification that was a NOOP. DAG size: 236 [2021-06-13 17:04:28,755 WARN L205 SmtUtils]: Spent 550.00 ms on a formula simplification that was a NOOP. DAG size: 236 [2021-06-13 17:04:29,937 WARN L205 SmtUtils]: Spent 878.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 179 [2021-06-13 17:04:30,382 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 0 proven. 469 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 17:04:30,382 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1904057091] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 17:04:30,382 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 17:04:30,382 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 41] total 63 [2021-06-13 17:04:30,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847969587] [2021-06-13 17:04:30,382 INFO L462 AbstractCegarLoop]: Interpolant automaton has 64 states [2021-06-13 17:04:30,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 17:04:30,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-06-13 17:04:30,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=348, Invalid=3684, Unknown=0, NotChecked=0, Total=4032 [2021-06-13 17:04:30,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 17:04:30,384 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 17:04:30,384 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 64 states, 64 states have (on average 2.125) internal successors, (136), 63 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 17:04:30,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 17:04:30,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-13 17:04:30,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-13 17:04:30,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 17:04:30,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-13 17:04:30,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-13 17:04:30,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-13 17:04:30,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-13 17:04:30,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-13 17:04:30,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-06-13 17:04:30,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-13 17:04:30,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-13 17:04:30,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-13 17:04:30,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 17:04:33,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 17:04:33,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-13 17:04:33,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-13 17:04:33,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 17:04:33,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-13 17:04:33,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-13 17:04:33,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-13 17:04:33,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-13 17:04:33,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-13 17:04:33,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-13 17:04:33,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-13 17:04:33,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-13 17:04:33,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-13 17:04:33,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-13 17:04:33,376 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable367 [2021-06-13 17:04:33,376 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 17:04:33,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 17:04:33,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1860071016, now seen corresponding path program 15 times [2021-06-13 17:04:33,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 17:04:33,377 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560418731] [2021-06-13 17:04:33,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 17:04:33,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 17:04:34,442 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 40 [2021-06-13 17:04:34,745 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 62 [2021-06-13 17:04:34,971 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 66 [2021-06-13 17:04:35,205 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 62 [2021-06-13 17:04:35,672 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 54 [2021-06-13 17:04:35,956 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 53 [2021-06-13 17:04:36,438 WARN L205 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 55 [2021-06-13 17:04:36,972 WARN L205 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 49 [2021-06-13 17:04:37,225 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 45 [2021-06-13 17:04:37,518 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 46 [2021-06-13 17:04:39,287 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 37 [2021-06-13 17:04:39,437 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 68 [2021-06-13 17:04:39,755 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 78 [2021-06-13 17:04:40,310 WARN L205 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 91 [2021-06-13 17:04:40,486 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 32 [2021-06-13 17:04:41,009 WARN L205 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 88 [2021-06-13 17:04:41,181 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 32 [2021-06-13 17:04:41,628 WARN L205 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 85 [2021-06-13 17:04:41,814 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 26 [2021-06-13 17:04:42,295 WARN L205 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 89 [2021-06-13 17:04:42,471 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 32 [2021-06-13 17:04:42,928 WARN L205 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 94 [2021-06-13 17:04:43,123 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 30 [2021-06-13 17:04:43,514 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 1 proven. 549 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-13 17:04:43,515 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 17:04:43,515 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560418731] [2021-06-13 17:04:43,515 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560418731] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 17:04:43,515 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489601681] [2021-06-13 17:04:43,515 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 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 17:04:43,608 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2021-06-13 17:04:43,609 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 17:04:43,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 52 conjunts are in the unsatisfiable core [2021-06-13 17:04:43,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 17:04:45,959 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 99 [2021-06-13 17:04:46,796 WARN L205 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 172 [2021-06-13 17:04:47,750 WARN L205 SmtUtils]: Spent 698.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 200 [2021-06-13 17:04:49,285 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 284 DAG size of output: 238 [2021-06-13 17:04:50,729 WARN L205 SmtUtils]: Spent 900.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 221 [2021-06-13 17:04:52,207 WARN L205 SmtUtils]: Spent 991.00 ms on a formula simplification. DAG size of input: 304 DAG size of output: 220 [2021-06-13 17:04:53,651 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 244 DAG size of output: 194 [2021-06-13 17:04:54,331 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2021-06-13 17:04:55,393 WARN L205 SmtUtils]: Spent 704.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 200 [2021-06-13 17:04:56,252 WARN L205 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-06-13 17:04:57,094 WARN L205 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 237 [2021-06-13 17:04:58,198 WARN L205 SmtUtils]: Spent 547.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2021-06-13 17:04:59,143 WARN L205 SmtUtils]: Spent 549.00 ms on a formula simplification that was a NOOP. DAG size: 263 [2021-06-13 17:05:00,023 WARN L205 SmtUtils]: Spent 548.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2021-06-13 17:05:00,980 WARN L205 SmtUtils]: Spent 542.00 ms on a formula simplification that was a NOOP. DAG size: 263 [2021-06-13 17:05:02,035 WARN L205 SmtUtils]: Spent 546.00 ms on a formula simplification that was a NOOP. DAG size: 259 [2021-06-13 17:05:03,118 WARN L205 SmtUtils]: Spent 556.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2021-06-13 17:05:04,434 WARN L205 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2021-06-13 17:05:05,933 WARN L205 SmtUtils]: Spent 712.00 ms on a formula simplification that was a NOOP. DAG size: 285 [2021-06-13 17:05:07,066 WARN L205 SmtUtils]: Spent 710.00 ms on a formula simplification that was a NOOP. DAG size: 285 [2021-06-13 17:05:09,521 WARN L205 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 245 DAG size of output: 245 [2021-06-13 17:05:10,522 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 553 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 17:05:10,523 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489601681] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 17:05:10,523 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 17:05:10,523 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 43] total 80 [2021-06-13 17:05:10,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608179822] [2021-06-13 17:05:10,523 INFO L462 AbstractCegarLoop]: Interpolant automaton has 81 states [2021-06-13 17:05:10,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 17:05:10,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2021-06-13 17:05:10,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=349, Invalid=6131, Unknown=0, NotChecked=0, Total=6480 [2021-06-13 17:05:10,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 17:05:10,525 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 17:05:10,525 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 81 states, 81 states have (on average 2.0617283950617282) internal successors, (167), 80 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 17:05:10,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 17:05:10,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-13 17:05:10,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-13 17:05:10,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 17:05:10,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-13 17:05:10,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-13 17:05:10,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-13 17:05:10,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-13 17:05:10,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-13 17:05:10,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-06-13 17:05:10,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-13 17:05:10,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-13 17:05:10,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-13 17:05:10,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-06-13 17:05:10,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 17:05:12,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 17:05:12,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-13 17:05:12,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-13 17:05:12,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 17:05:12,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-13 17:05:12,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-13 17:05:12,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-13 17:05:12,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-13 17:05:12,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-13 17:05:12,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-13 17:05:12,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-13 17:05:12,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-13 17:05:12,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-13 17:05:12,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-13 17:05:12,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-13 17:05:12,453 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable417,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 17:05:12,453 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 17:05:12,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 17:05:12,453 INFO L82 PathProgramCache]: Analyzing trace with hash -120054748, now seen corresponding path program 16 times [2021-06-13 17:05:12,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 17:05:12,454 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715162076] [2021-06-13 17:05:12,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 17:05:12,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 17:05:25,877 WARN L205 SmtUtils]: Spent 11.85 s on a formula simplification. DAG size of input: 107 DAG size of output: 43 [2021-06-13 17:05:30,372 WARN L205 SmtUtils]: Spent 4.44 s on a formula simplification. DAG size of input: 134 DAG size of output: 81 [2021-06-13 17:05:38,350 WARN L205 SmtUtils]: Spent 7.88 s on a formula simplification. DAG size of input: 155 DAG size of output: 99 [2021-06-13 17:05:38,513 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 36 [2021-06-13 17:05:42,923 WARN L205 SmtUtils]: Spent 4.41 s on a formula simplification. DAG size of input: 165 DAG size of output: 68 [2021-06-13 17:05:48,720 WARN L205 SmtUtils]: Spent 5.68 s on a formula simplification. DAG size of input: 177 DAG size of output: 82 [2021-06-13 17:05:48,865 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 34 [2021-06-13 17:06:00,164 WARN L205 SmtUtils]: Spent 11.30 s on a formula simplification. DAG size of input: 183 DAG size of output: 95 [2021-06-13 17:06:00,360 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 34 [2021-06-13 17:06:27,878 WARN L205 SmtUtils]: Spent 27.52 s on a formula simplification. DAG size of input: 197 DAG size of output: 127 [2021-06-13 17:06:28,155 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 34 [2021-06-13 17:06:58,646 WARN L205 SmtUtils]: Spent 30.49 s on a formula simplification. DAG size of input: 204 DAG size of output: 140 [2021-06-13 17:06:58,860 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 34 [2021-06-13 17:07:24,478 WARN L205 SmtUtils]: Spent 25.62 s on a formula simplification. DAG size of input: 230 DAG size of output: 79 [2021-06-13 17:07:47,527 WARN L205 SmtUtils]: Spent 22.91 s on a formula simplification. DAG size of input: 222 DAG size of output: 57 [2021-06-13 17:08:10,576 WARN L205 SmtUtils]: Spent 22.95 s on a formula simplification. DAG size of input: 223 DAG size of output: 63 [2021-06-13 17:08:35,610 WARN L205 SmtUtils]: Spent 24.93 s on a formula simplification. DAG size of input: 227 DAG size of output: 64 [2021-06-13 17:09:08,897 WARN L205 SmtUtils]: Spent 33.18 s on a formula simplification. DAG size of input: 236 DAG size of output: 80 [2021-06-13 17:09:41,460 WARN L205 SmtUtils]: Spent 32.43 s on a formula simplification. DAG size of input: 232 DAG size of output: 79 [2021-06-13 17:09:46,923 WARN L205 SmtUtils]: Spent 5.33 s on a formula simplification. DAG size of input: 186 DAG size of output: 41 [2021-06-13 17:09:52,527 WARN L205 SmtUtils]: Spent 5.52 s on a formula simplification. DAG size of input: 206 DAG size of output: 37 [2021-06-13 17:10:44,771 WARN L205 SmtUtils]: Spent 52.17 s on a formula simplification. DAG size of input: 268 DAG size of output: 65 [2021-06-13 17:11:52,501 WARN L205 SmtUtils]: Spent 1.13 m on a formula simplification. DAG size of input: 232 DAG size of output: 125 [2021-06-13 17:11:52,772 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 32 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown