/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product-array.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-06 05:43:58,446 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-06 05:43:58,448 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-06 05:43:58,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-06 05:43:58,474 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-06 05:43:58,475 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-06 05:43:58,476 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-06 05:43:58,486 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-06 05:43:58,488 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-06 05:43:58,493 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-06 05:43:58,493 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-06 05:43:58,494 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-06 05:43:58,494 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-06 05:43:58,496 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-06 05:43:58,497 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-06 05:43:58,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-06 05:43:58,499 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-06 05:43:58,500 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-06 05:43:58,501 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-06 05:43:58,501 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-06 05:43:58,502 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-06 05:43:58,504 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-06 05:43:58,505 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-06 05:43:58,506 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-06 05:43:58,512 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-06 05:43:58,512 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-06 05:43:58,512 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-06 05:43:58,512 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-06 05:43:58,513 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-06 05:43:58,513 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-06 05:43:58,513 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-06 05:43:58,514 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-06 05:43:58,514 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-06 05:43:58,514 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-06 05:43:58,515 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-06 05:43:58,515 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-06 05:43:58,516 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-06 05:43:58,516 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-06 05:43:58,516 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-06 05:43:58,516 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-06 05:43:58,517 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-06 05:43:58,523 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe.epf [2021-06-06 05:43:58,541 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-06 05:43:58,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-06 05:43:58,541 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-06 05:43:58,541 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-06 05:43:58,542 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-06 05:43:58,542 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-06 05:43:58,542 INFO L138 SettingsManager]: * Use SBE=true [2021-06-06 05:43:58,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-06 05:43:58,542 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-06 05:43:58,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-06 05:43:58,543 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-06 05:43:58,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-06 05:43:58,543 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-06 05:43:58,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-06 05:43:58,543 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-06 05:43:58,543 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-06 05:43:58,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-06 05:43:58,543 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-06 05:43:58,543 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-06 05:43:58,543 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-06 05:43:58,543 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-06 05:43:58,544 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-06 05:43:58,544 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-06 05:43:58,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 05:43:58,544 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-06 05:43:58,544 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-06 05:43:58,544 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-06 05:43:58,544 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-06 05:43:58,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-06 05:43:58,544 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-06 05:43:58,544 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-06 05:43:58,544 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-06 05:43:58,545 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-06 05:43:58,545 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-06 05:43:58,775 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-06 05:43:58,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-06 05:43:58,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-06 05:43:58,795 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-06 05:43:58,796 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-06 05:43:58,796 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product-array.wvr.bpl [2021-06-06 05:43:58,796 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product-array.wvr.bpl' [2021-06-06 05:43:58,820 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-06 05:43:58,821 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-06 05:43:58,822 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-06 05:43:58,822 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-06 05:43:58,822 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-06 05:43:58,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:43:58" (1/1) ... [2021-06-06 05:43:58,836 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:43:58" (1/1) ... [2021-06-06 05:43:58,841 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-06 05:43:58,843 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-06 05:43:58,843 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-06 05:43:58,843 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-06 05:43:58,848 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:43:58" (1/1) ... [2021-06-06 05:43:58,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:43:58" (1/1) ... [2021-06-06 05:43:58,850 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:43:58" (1/1) ... [2021-06-06 05:43:58,850 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:43:58" (1/1) ... [2021-06-06 05:43:58,854 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:43:58" (1/1) ... [2021-06-06 05:43:58,856 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:43:58" (1/1) ... [2021-06-06 05:43:58,857 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:43:58" (1/1) ... [2021-06-06 05:43:58,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-06 05:43:58,863 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-06 05:43:58,863 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-06 05:43:58,863 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-06 05:43:58,864 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:43:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 05:43:58,931 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-06 05:43:58,931 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-06 05:43:58,931 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-06 05:43:58,932 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-06 05:43:58,932 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-06 05:43:58,932 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-06 05:43:58,932 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-06 05:43:58,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-06 05:43:58,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-06 05:43:58,932 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-06 05:43:58,933 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-06 05:43:58,933 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-06 05:43:58,933 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-06 05:43:59,124 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-06 05:43:59,124 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-06 05:43:59,125 INFO L202 PluginConnector]: Adding new model dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 05:43:59 BoogieIcfgContainer [2021-06-06 05:43:59,125 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-06 05:43:59,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-06 05:43:59,126 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-06 05:43:59,128 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-06 05:43:59,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:43:58" (1/2) ... [2021-06-06 05:43:59,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@90923bd and model type dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.06 05:43:59, skipping insertion in model container [2021-06-06 05:43:59,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 05:43:59" (2/2) ... [2021-06-06 05:43:59,130 INFO L111 eAbstractionObserver]: Analyzing ICFG dot-product-array.wvr.bpl [2021-06-06 05:43:59,134 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-06 05:43:59,134 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-06 05:43:59,134 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-06 05:43:59,135 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-06 05:43:59,192 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-06 05:43:59,206 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 [2021-06-06 05:43:59,242 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-06 05:43:59,242 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-06 05:43:59,242 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-06 05:43:59,242 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-06 05:43:59,242 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-06 05:43:59,242 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-06 05:43:59,242 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-06 05:43:59,243 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-06 05:43:59,350 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:43:59,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:43:59,353 INFO L82 PathProgramCache]: Analyzing trace with hash -1421528455, now seen corresponding path program 1 times [2021-06-06 05:43:59,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:43:59,361 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240540780] [2021-06-06 05:43:59,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:43:59,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:43:59,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:43:59,473 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:43:59,473 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240540780] [2021-06-06 05:43:59,473 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240540780] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 05:43:59,473 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 05:43:59,474 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-06 05:43:59,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026091649] [2021-06-06 05:43:59,477 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-06 05:43:59,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:43:59,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-06 05:43:59,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-06 05:43:59,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:43:59,486 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:43:59,488 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 05:43:59,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:43:59,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:43:59,502 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-06 05:43:59,502 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:43:59,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:43:59,503 INFO L82 PathProgramCache]: Analyzing trace with hash 690038743, now seen corresponding path program 1 times [2021-06-06 05:43:59,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:43:59,503 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911517808] [2021-06-06 05:43:59,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:43:59,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:43:59,533 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 05:43:59,534 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:43:59,534 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911517808] [2021-06-06 05:43:59,534 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911517808] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 05:43:59,534 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 05:43:59,534 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-06 05:43:59,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419735616] [2021-06-06 05:43:59,535 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-06 05:43:59,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:43:59,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-06 05:43:59,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-06 05:43:59,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:43:59,536 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:43:59,536 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 05:43:59,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:43:59,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:43:59,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:43:59,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:43:59,565 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-06 05:43:59,566 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:43:59,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:43:59,566 INFO L82 PathProgramCache]: Analyzing trace with hash 2139358133, now seen corresponding path program 1 times [2021-06-06 05:43:59,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:43:59,566 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98818362] [2021-06-06 05:43:59,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:43:59,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:43:59,834 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:43:59,835 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:43:59,835 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98818362] [2021-06-06 05:43:59,835 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98818362] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:43:59,836 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868375510] [2021-06-06 05:43:59,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:43:59,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:43:59,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2021-06-06 05:43:59,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:44:00,082 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:44:00,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2021-06-06 05:44:00,093 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-06 05:44:00,098 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:44:00,100 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:44:00,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-06-06 05:44:00,106 INFO L550 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-06 05:44:00,111 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:44:00,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-06-06 05:44:00,116 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-06 05:44:00,120 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:44:00,124 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-06-06 05:44:00,124 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:29, output treesize:3 [2021-06-06 05:44:00,157 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:44:00,157 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868375510] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:44:00,158 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 05:44:00,158 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-06-06 05:44:00,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735946329] [2021-06-06 05:44:00,159 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-06 05:44:00,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:44:00,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-06 05:44:00,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-06-06 05:44:00,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:44:00,163 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:44:00,164 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 11 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) [2021-06-06 05:44:00,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:44:00,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:44:00,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:44:00,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:44:00,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:44:00,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 05:44:00,546 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:44:00,547 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:44:00,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:44:00,548 INFO L82 PathProgramCache]: Analyzing trace with hash 428481043, now seen corresponding path program 2 times [2021-06-06 05:44:00,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:44:00,549 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182468921] [2021-06-06 05:44:00,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:44:00,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:44:00,593 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:44:00,593 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:44:00,593 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182468921] [2021-06-06 05:44:00,593 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182468921] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:44:00,593 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018811286] [2021-06-06 05:44:00,594 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:44:00,631 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 05:44:00,631 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 05:44:00,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-06 05:44:00,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:44:00,726 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:44:00,726 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018811286] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:44:00,726 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 05:44:00,726 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-06-06 05:44:00,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91280710] [2021-06-06 05:44:00,727 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-06 05:44:00,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:44:00,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-06 05:44:00,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-06-06 05:44:00,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:44:00,728 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:44:00,728 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 05:44:00,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:44:00,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:44:00,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 05:44:00,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:44:00,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:44:00,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:44:00,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 05:44:00,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 05:44:01,060 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:44:01,061 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:44:01,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:44:01,061 INFO L82 PathProgramCache]: Analyzing trace with hash -59020201, now seen corresponding path program 1 times [2021-06-06 05:44:01,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:44:01,062 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012474160] [2021-06-06 05:44:01,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:44:01,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:44:01,134 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 05:44:01,134 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:44:01,134 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012474160] [2021-06-06 05:44:01,134 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012474160] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:44:01,134 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227655272] [2021-06-06 05:44:01,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:44:01,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:44:01,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-06 05:44:01,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:44:01,256 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 05:44:01,257 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227655272] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:44:01,257 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 05:44:01,257 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-06-06 05:44:01,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636408913] [2021-06-06 05:44:01,257 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-06 05:44:01,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:44:01,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-06 05:44:01,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-06-06 05:44:01,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:44:01,258 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:44:01,258 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 05:44:01,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:44:01,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:44:01,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 05:44:01,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 05:44:01,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:44:01,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:44:01,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:44:01,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 05:44:01,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 05:44:01,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:44:01,547 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:44:01,548 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:44:01,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:44:01,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1348287435, now seen corresponding path program 2 times [2021-06-06 05:44:01,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:44:01,548 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622262066] [2021-06-06 05:44:01,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:44:01,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:44:01,864 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:44:01,864 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:44:01,865 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622262066] [2021-06-06 05:44:01,865 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622262066] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:44:01,867 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985031379] [2021-06-06 05:44:01,867 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 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:44:01,903 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 05:44:01,903 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 05:44:01,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 37 conjunts are in the unsatisfiable core [2021-06-06 05:44:01,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:44:02,355 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:44:02,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 73 [2021-06-06 05:44:02,545 INFO L550 ElimStorePlain]: Start of recursive call 2: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-06-06 05:44:02,565 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:44:02,600 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:44:02,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 61 [2021-06-06 05:44:02,772 INFO L550 ElimStorePlain]: Start of recursive call 3: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-06-06 05:44:02,804 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:44:02,839 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:44:02,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 85 [2021-06-06 05:44:03,015 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 3 xjuncts. [2021-06-06 05:44:03,354 WARN L205 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 103 [2021-06-06 05:44:03,355 INFO L628 ElimStorePlain]: treesize reduction 322, result has 68.1 percent of original size [2021-06-06 05:44:03,768 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-06-06 05:44:03,768 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:77, output treesize:228 [2021-06-06 05:44:03,839 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:44:03,839 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1985031379] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:44:03,839 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 05:44:03,839 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 16] total 25 [2021-06-06 05:44:03,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353739756] [2021-06-06 05:44:03,839 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-06 05:44:03,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:44:03,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-06 05:44:03,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=508, Unknown=0, NotChecked=0, Total=600 [2021-06-06 05:44:03,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:44:03,840 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:44:03,840 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.08) internal successors, (52), 25 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 05:44:03,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:44:03,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:44:03,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 05:44:03,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 05:44:03,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:44:03,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:44:04,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:44:04,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:44:04,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 05:44:04,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 05:44:04,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:44:04,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 05:44:04,940 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-06-06 05:44:04,940 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:44:04,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:44:04,941 INFO L82 PathProgramCache]: Analyzing trace with hash 911449235, now seen corresponding path program 3 times [2021-06-06 05:44:04,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:44:04,941 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989199860] [2021-06-06 05:44:04,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:44:04,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:44:05,009 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:44:05,010 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:44:05,010 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989199860] [2021-06-06 05:44:05,010 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989199860] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:44:05,010 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [701783039] [2021-06-06 05:44:05,010 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 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 [2021-06-06 05:44:05,039 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-06-06 05:44:05,040 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 05:44:05,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-06 05:44:05,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:44:05,172 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:44:05,173 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [701783039] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:44:05,173 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 05:44:05,173 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2021-06-06 05:44:05,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548048304] [2021-06-06 05:44:05,174 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-06 05:44:05,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:44:05,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-06 05:44:05,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-06-06 05:44:05,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:44:05,175 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:44:05,175 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.55) internal successors, (51), 20 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 05:44:05,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:44:05,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:44:05,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 05:44:05,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 05:44:05,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:44:05,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 05:44:05,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:44:05,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:44:05,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:44:05,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 05:44:05,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 05:44:05,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:44:05,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 05:44:05,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-06 05:44:05,748 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:44:05,749 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:44:05,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:44:05,749 INFO L82 PathProgramCache]: Analyzing trace with hash -1145065769, now seen corresponding path program 4 times [2021-06-06 05:44:05,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:44:05,749 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579039598] [2021-06-06 05:44:05,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:44:05,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:44:05,809 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 05:44:05,810 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:44:05,810 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579039598] [2021-06-06 05:44:05,810 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579039598] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:44:05,810 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126740755] [2021-06-06 05:44:05,810 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:44:05,865 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 05:44:05,865 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 05:44:05,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-06 05:44:05,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:44:05,959 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 05:44:05,960 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2126740755] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:44:05,960 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 05:44:05,960 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2021-06-06 05:44:05,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423518859] [2021-06-06 05:44:05,960 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-06 05:44:05,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:44:05,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-06 05:44:05,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-06-06 05:44:05,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:44:05,961 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:44:05,961 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 05:44:05,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:44:05,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:44:05,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 05:44:05,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 05:44:05,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:44:05,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 05:44:05,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-06 05:44:05,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:44:06,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:44:06,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:44:06,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 05:44:06,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 05:44:06,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:44:06,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 05:44:06,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-06 05:44:06,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 05:44:06,292 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable166 [2021-06-06 05:44:06,293 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:44:06,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:44:06,293 INFO L82 PathProgramCache]: Analyzing trace with hash 754469045, now seen corresponding path program 5 times [2021-06-06 05:44:06,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:44:06,293 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656028583] [2021-06-06 05:44:06,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:44:06,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:44:06,722 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:44:06,722 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:44:06,722 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656028583] [2021-06-06 05:44:06,722 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656028583] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:44:06,722 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491843089] [2021-06-06 05:44:06,723 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:44:06,764 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-06-06 05:44:06,765 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 05:44:06,765 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 48 conjunts are in the unsatisfiable core [2021-06-06 05:44:06,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:44:16,114 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2021-06-06 05:44:16,603 WARN L205 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2021-06-06 05:44:17,356 WARN L205 SmtUtils]: Spent 712.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2021-06-06 05:44:17,391 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:44:17,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:44:17,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:44:17,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:44:17,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:44:17,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 77 [2021-06-06 05:44:17,399 INFO L550 ElimStorePlain]: Start of recursive call 2: 5 dim-0 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-06-06 05:44:17,409 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:44:17,411 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:44:17,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:44:17,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:44:17,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:44:17,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:44:17,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 57 [2021-06-06 05:44:17,418 INFO L550 ElimStorePlain]: Start of recursive call 3: 5 dim-0 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-06-06 05:44:17,429 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:44:17,497 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:44:17,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 57 treesize of output 137 [2021-06-06 05:44:18,138 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 197 [2021-06-06 05:44:18,505 WARN L205 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 240 [2021-06-06 05:44:19,529 WARN L205 SmtUtils]: Spent 975.00 ms on a formula simplification. DAG size of input: 307 DAG size of output: 287 [2021-06-06 05:44:20,502 WARN L205 SmtUtils]: Spent 971.00 ms on a formula simplification. DAG size of input: 307 DAG size of output: 287 [2021-06-06 05:44:21,467 WARN L205 SmtUtils]: Spent 960.00 ms on a formula simplification. DAG size of input: 315 DAG size of output: 295 [2021-06-06 05:44:21,807 WARN L205 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 242 [2021-06-06 05:44:22,285 WARN L205 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 231 [2021-06-06 05:44:22,615 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 184 [2021-06-06 05:44:22,752 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 198 [2021-06-06 05:44:22,880 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 198 [2021-06-06 05:44:23,582 WARN L205 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 242 [2021-06-06 05:44:23,952 WARN L205 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 240 [2021-06-06 05:44:24,325 WARN L205 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 240 [2021-06-06 05:44:24,955 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 157 [2021-06-06 05:44:25,986 WARN L205 SmtUtils]: Spent 990.00 ms on a formula simplification. DAG size of input: 285 DAG size of output: 287 [2021-06-06 05:44:27,024 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 313 DAG size of output: 293 [2021-06-06 05:44:28,056 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 283 DAG size of output: 285 [2021-06-06 05:44:29,193 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 287 DAG size of output: 289 [2021-06-06 05:44:30,251 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 286 DAG size of output: 288 [2021-06-06 05:44:31,233 WARN L205 SmtUtils]: Spent 974.00 ms on a formula simplification. DAG size of input: 285 DAG size of output: 287 [2021-06-06 05:44:31,813 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 97 [2021-06-06 05:44:32,041 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 147 [2021-06-06 05:44:32,428 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 242 [2021-06-06 05:44:32,892 WARN L205 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 231 [2021-06-06 05:44:33,168 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 184 [2021-06-06 05:44:33,297 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 198 [2021-06-06 05:44:33,428 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 198 [2021-06-06 05:44:34,088 WARN L205 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 242 [2021-06-06 05:44:34,457 WARN L205 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 240 [2021-06-06 05:44:34,829 WARN L205 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 240 [2021-06-06 05:44:35,827 WARN L205 SmtUtils]: Spent 996.00 ms on a formula simplification. DAG size of input: 285 DAG size of output: 287 [2021-06-06 05:44:36,823 WARN L205 SmtUtils]: Spent 993.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 285 [2021-06-06 05:44:37,812 WARN L205 SmtUtils]: Spent 987.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 285 [2021-06-06 05:44:38,953 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 287 DAG size of output: 289 [2021-06-06 05:44:38,956 INFO L550 ElimStorePlain]: Start of recursive call 4: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-06-06 05:44:41,273 WARN L205 SmtUtils]: Spent 2.32 s on a formula simplification. DAG size of input: 290 DAG size of output: 248 [2021-06-06 05:44:41,274 INFO L628 ElimStorePlain]: treesize reduction 15036, result has 42.6 percent of original size [2021-06-06 05:44:41,676 WARN L205 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 249 [2021-06-06 05:44:41,969 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 234 DAG size of output: 236 [2021-06-06 05:44:43,244 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-06-06 05:44:43,244 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:106, output treesize:3 [2021-06-06 05:44:43,265 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:44:43,265 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491843089] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:44:43,265 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 05:44:43,265 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 30 [2021-06-06 05:44:43,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59398815] [2021-06-06 05:44:43,268 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-06-06 05:44:43,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:44:43,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-06-06 05:44:43,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=740, Unknown=5, NotChecked=0, Total=870 [2021-06-06 05:44:43,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:44:43,270 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:44:43,270 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.2333333333333334) internal successors, (67), 30 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 05:44:43,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:44:43,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:44:43,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 05:44:43,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 05:44:43,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:44:43,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 05:44:43,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-06 05:44:43,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 05:44:43,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:45:42,475 WARN L205 SmtUtils]: Spent 1.50 s on a formula simplification that was a NOOP. DAG size: 56 [2021-06-06 05:45:42,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:45:42,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:45:42,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 05:45:42,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 05:45:42,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:45:42,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 05:45:42,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-06 05:45:42,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 05:45:42,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-06 05:45:43,026 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable167 [2021-06-06 05:45:43,026 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:45:43,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:45:43,027 INFO L82 PathProgramCache]: Analyzing trace with hash -127394481, now seen corresponding path program 6 times [2021-06-06 05:45:43,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:45:43,027 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519229918] [2021-06-06 05:45:43,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:45:43,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:45:43,149 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 18 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:45:43,149 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:45:43,149 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519229918] [2021-06-06 05:45:43,149 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519229918] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:45:43,149 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212174072] [2021-06-06 05:45:43,149 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 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:45:43,190 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-06-06 05:45:43,191 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 05:45:43,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 16 conjunts are in the unsatisfiable core [2021-06-06 05:45:43,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:45:43,404 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 18 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:45:43,404 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [212174072] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:45:43,404 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 05:45:43,404 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 29 [2021-06-06 05:45:43,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857303879] [2021-06-06 05:45:43,405 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-06-06 05:45:43,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:45:43,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-06-06 05:45:43,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=652, Unknown=0, NotChecked=0, Total=812 [2021-06-06 05:45:43,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:45:43,406 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:45:43,406 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.3793103448275863) internal successors, (69), 29 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 05:45:43,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:45:43,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:45:43,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 05:45:43,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 05:45:43,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:45:43,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 05:45:43,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-06 05:45:43,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 05:45:43,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-06 05:45:43,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:45:43,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:45:43,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:45:43,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 05:45:43,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 05:45:43,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:45:43,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 05:45:43,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-06 05:45:43,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 05:45:43,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-06 05:45:43,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 05:45:43,816 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable647,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:45:43,819 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:45:43,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:45:43,819 INFO L82 PathProgramCache]: Analyzing trace with hash 726661421, now seen corresponding path program 7 times [2021-06-06 05:45:43,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:45:43,819 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819340741] [2021-06-06 05:45:43,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:45:43,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:45:44,455 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 1 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:45:44,456 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:45:44,456 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819340741] [2021-06-06 05:45:44,456 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819340741] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:45:44,456 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [285108391] [2021-06-06 05:45:44,456 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:45:44,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:45:44,491 WARN L261 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 64 conjunts are in the unsatisfiable core [2021-06-06 05:45:44,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:45:45,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:45:45,283 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:45:45,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:45:45,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:45:45,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:45:45,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:45:45,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:45:45,286 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:45:45,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:45:45,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:45:45,288 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:45:45,289 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 21 disjoint index pairs (out of 45 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 109 [2021-06-06 05:45:45,292 INFO L550 ElimStorePlain]: Start of recursive call 2: 7 dim-0 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2021-06-06 05:45:45,301 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:45:45,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:45:45,303 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:45:45,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:45:45,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:45:45,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:45:45,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:45:45,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:45:45,307 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:45:45,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:45:45,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:45:45,309 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:45:45,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 21 disjoint index pairs (out of 45 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 77 [2021-06-06 05:45:45,312 INFO L550 ElimStorePlain]: Start of recursive call 3: 7 dim-0 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2021-06-06 05:45:45,320 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:45:45,449 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-06-06 05:45:45,449 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:45:45,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 77 treesize of output 273 [2021-06-06 05:45:45,892 WARN L205 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 192 [2021-06-06 05:45:46,929 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 239 DAG size of output: 216 [2021-06-06 05:45:49,532 WARN L205 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 270 DAG size of output: 240 [2021-06-06 05:45:52,179 WARN L205 SmtUtils]: Spent 2.65 s on a formula simplification. DAG size of input: 270 DAG size of output: 240 [2021-06-06 05:45:54,981 WARN L205 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 292 DAG size of output: 262 [2021-06-06 05:46:04,491 WARN L205 SmtUtils]: Spent 9.50 s on a formula simplification. DAG size of input: 258 DAG size of output: 270 [2021-06-06 05:46:13,890 WARN L205 SmtUtils]: Spent 9.40 s on a formula simplification. DAG size of input: 253 DAG size of output: 274 [2021-06-06 05:46:23,379 WARN L205 SmtUtils]: Spent 9.49 s on a formula simplification. DAG size of input: 248 DAG size of output: 266 [2021-06-06 05:46:25,980 WARN L205 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 240 DAG size of output: 240 [2021-06-06 05:46:26,251 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 145 [2021-06-06 05:46:27,294 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 219 DAG size of output: 219 [2021-06-06 05:46:27,704 WARN L205 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 197 [2021-06-06 05:46:27,970 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 155 [2021-06-06 05:46:28,379 WARN L205 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 167 [2021-06-06 05:46:28,984 WARN L205 SmtUtils]: Spent 602.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 161 [2021-06-06 05:46:30,140 WARN L205 SmtUtils]: Spent 1000.00 ms on a formula simplification. DAG size of input: 326 DAG size of output: 308 [2021-06-06 05:46:33,167 WARN L205 SmtUtils]: Spent 3.03 s on a formula simplification. DAG size of input: 426 DAG size of output: 391 [2021-06-06 05:46:40,988 WARN L205 SmtUtils]: Spent 7.68 s on a formula simplification. DAG size of input: 513 DAG size of output: 465 [2021-06-06 05:46:59,706 WARN L205 SmtUtils]: Spent 18.72 s on a formula simplification. DAG size of input: 595 DAG size of output: 525 [2021-06-06 05:47:47,644 WARN L205 SmtUtils]: Spent 47.93 s on a formula simplification. DAG size of input: 694 DAG size of output: 619 [2021-06-06 05:49:42,495 WARN L205 SmtUtils]: Spent 1.91 m on a formula simplification. DAG size of input: 782 DAG size of output: 704 [2021-06-06 05:54:13,167 WARN L205 SmtUtils]: Spent 4.51 m on a formula simplification. DAG size of input: 867 DAG size of output: 788 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown