/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.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-06 05:44:11,212 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-06 05:44:11,214 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-06 05:44:11,252 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-06 05:44:11,269 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-06 05:44:11,271 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-06 05:44:11,272 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-06 05:44:11,273 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-06 05:44:11,275 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-06 05:44:11,276 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-06 05:44:11,278 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-06 05:44:11,283 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-06 05:44:11,284 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-06 05:44:11,285 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-06 05:44:11,286 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-06 05:44:11,288 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-06 05:44:11,297 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-06 05:44:11,303 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-06 05:44:11,304 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-06 05:44:11,304 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-06 05:44:11,308 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 05:44:11,341 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-06 05:44:11,342 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-06 05:44:11,342 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-06 05:44:11,342 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-06 05:44:11,344 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-06 05:44:11,345 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-06 05:44:11,345 INFO L138 SettingsManager]: * Use SBE=true [2021-06-06 05:44:11,345 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-06 05:44:11,345 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-06 05:44:11,345 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-06 05:44:11,346 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-06 05:44:11,346 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-06 05:44:11,346 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-06 05:44:11,347 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-06 05:44:11,347 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-06 05:44:11,347 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-06 05:44:11,347 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-06 05:44:11,347 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-06 05:44:11,347 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-06 05:44:11,347 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-06 05:44:11,348 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-06 05:44:11,348 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-06 05:44:11,348 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-06 05:44:11,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 05:44:11,348 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-06 05:44:11,348 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-06 05:44:11,348 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-06 05:44:11,349 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-06 05:44:11,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-06 05:44:11,349 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-06 05:44:11,349 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-06 05:44:11,349 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-06 05:44:11,349 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-06 05:44:11,350 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-06 05:44:11,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-06 05:44:11,646 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-06 05:44:11,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-06 05:44:11,648 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-06 05:44:11,649 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-06 05:44:11,650 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product.wvr.bpl [2021-06-06 05:44:11,650 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product.wvr.bpl' [2021-06-06 05:44:11,671 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-06 05:44:11,672 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-06 05:44:11,673 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-06 05:44:11,673 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-06 05:44:11,673 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-06 05:44:11,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:44:11" (1/1) ... [2021-06-06 05:44:11,694 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:44:11" (1/1) ... [2021-06-06 05:44:11,700 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-06 05:44:11,702 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-06 05:44:11,702 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-06 05:44:11,702 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-06 05:44:11,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:44:11" (1/1) ... [2021-06-06 05:44:11,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:44:11" (1/1) ... [2021-06-06 05:44:11,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:44:11" (1/1) ... [2021-06-06 05:44:11,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:44:11" (1/1) ... [2021-06-06 05:44:11,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:44:11" (1/1) ... [2021-06-06 05:44:11,718 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:44:11" (1/1) ... [2021-06-06 05:44:11,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:44:11" (1/1) ... [2021-06-06 05:44:11,723 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-06 05:44:11,725 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-06 05:44:11,725 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-06 05:44:11,725 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-06 05:44:11,726 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:44:11" (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 05:44:11,804 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-06 05:44:11,804 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-06 05:44:11,804 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-06 05:44:11,804 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-06 05:44:11,804 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-06 05:44:11,804 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-06 05:44:11,805 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-06 05:44:11,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-06 05:44:11,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-06 05:44:11,806 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-06 05:44:11,806 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-06 05:44:11,806 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-06 05:44:11,807 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 05:44:12,006 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-06 05:44:12,006 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-06 05:44:12,008 INFO L202 PluginConnector]: Adding new model dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 05:44:12 BoogieIcfgContainer [2021-06-06 05:44:12,008 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-06 05:44:12,009 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-06 05:44:12,010 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-06 05:44:12,012 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-06 05:44:12,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:44:11" (1/2) ... [2021-06-06 05:44:12,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5da5c125 and model type dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.06 05:44:12, skipping insertion in model container [2021-06-06 05:44:12,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 05:44:12" (2/2) ... [2021-06-06 05:44:12,014 INFO L111 eAbstractionObserver]: Analyzing ICFG dot-product.wvr.bpl [2021-06-06 05:44:12,018 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-06 05:44:12,018 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-06 05:44:12,019 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-06 05:44:12,019 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-06 05:44:12,059 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-06 05:44:12,093 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 05:44:12,209 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-06 05:44:12,210 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-06 05:44:12,210 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-06 05:44:12,210 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-06 05:44:12,210 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-06 05:44:12,210 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-06 05:44:12,210 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-06 05:44:12,210 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-06 05:44:12,319 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:44:12,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:44:12,329 INFO L82 PathProgramCache]: Analyzing trace with hash -1421528455, now seen corresponding path program 1 times [2021-06-06 05:44:12,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:44:12,338 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106144123] [2021-06-06 05:44:12,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:44:12,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:44:12,496 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 05:44:12,496 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:44:12,497 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106144123] [2021-06-06 05:44:12,498 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106144123] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 05:44:12,498 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 05:44:12,498 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-06 05:44:12,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853170551] [2021-06-06 05:44:12,502 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-06 05:44:12,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:44:12,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-06 05:44:12,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-06 05:44:12,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:44:12,522 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:44:12,526 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 05:44:12,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:44:12,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:44:12,558 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-06 05:44:12,558 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:44:12,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:44:12,561 INFO L82 PathProgramCache]: Analyzing trace with hash 690038743, now seen corresponding path program 1 times [2021-06-06 05:44:12,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:44:12,562 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909393942] [2021-06-06 05:44:12,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:44:12,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:44:12,628 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 05:44:12,628 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:44:12,628 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909393942] [2021-06-06 05:44:12,629 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909393942] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 05:44:12,629 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 05:44:12,629 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-06 05:44:12,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89350499] [2021-06-06 05:44:12,631 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-06 05:44:12,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:44:12,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-06 05:44:12,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-06 05:44:12,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:44:12,635 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:44:12,635 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 05:44:12,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:44:12,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:44:12,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:44:12,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:44:12,696 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-06 05:44:12,696 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:44:12,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:44:12,696 INFO L82 PathProgramCache]: Analyzing trace with hash 2139358133, now seen corresponding path program 1 times [2021-06-06 05:44:12,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:44:12,697 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505954692] [2021-06-06 05:44:12,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:44:12,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:44:12,968 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 05:44:12,969 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:44:12,969 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505954692] [2021-06-06 05:44:12,969 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505954692] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:44:12,969 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56333180] [2021-06-06 05:44:12,970 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 05:44:13,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:44:13,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2021-06-06 05:44:13,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:44:13,279 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:44:13,283 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 05:44:13,291 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 05:44:13,298 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:44:13,301 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:44:13,302 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 05:44:13,308 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 05:44:13,316 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:44:13,320 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 05:44:13,322 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-06 05:44:13,326 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:44:13,329 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 05:44:13,329 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:29, output treesize:3 [2021-06-06 05:44:13,379 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 05:44:13,379 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [56333180] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:44:13,379 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 05:44:13,379 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-06-06 05:44:13,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778743649] [2021-06-06 05:44:13,380 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-06 05:44:13,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:44:13,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-06 05:44:13,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-06-06 05:44:13,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:44:13,381 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:44:13,381 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 05:44:13,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:44:13,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:44:13,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:44:13,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:44:13,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:44:13,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 05:44:13,755 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:44:13,755 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:44:13,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:44:13,756 INFO L82 PathProgramCache]: Analyzing trace with hash 428481043, now seen corresponding path program 2 times [2021-06-06 05:44:13,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:44:13,757 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76725156] [2021-06-06 05:44:13,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:44:13,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:44:13,829 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 05:44:13,829 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:44:13,830 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76725156] [2021-06-06 05:44:13,830 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76725156] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:44:13,830 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77571160] [2021-06-06 05:44:13,830 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 05:44:13,862 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 05:44:13,862 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 05:44:13,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-06 05:44:13,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:44:14,003 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 05:44:14,003 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77571160] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:44:14,003 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 05:44:14,003 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-06-06 05:44:14,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603823886] [2021-06-06 05:44:14,005 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-06 05:44:14,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:44:14,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-06 05:44:14,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-06-06 05:44:14,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:44:14,007 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:44:14,007 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 05:44:14,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:44:14,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:44:14,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 05:44:14,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:44:14,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:44:14,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:44:14,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 05:44:14,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 05:44:14,412 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:44:14,413 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:44:14,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:44:14,413 INFO L82 PathProgramCache]: Analyzing trace with hash -59020201, now seen corresponding path program 1 times [2021-06-06 05:44:14,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:44:14,414 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603327480] [2021-06-06 05:44:14,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:44:14,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:44:14,485 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 05:44:14,485 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:44:14,485 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603327480] [2021-06-06 05:44:14,485 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603327480] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:44:14,485 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887081819] [2021-06-06 05:44:14,486 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 05:44:14,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:44:14,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-06 05:44:14,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:44:14,675 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 05:44:14,676 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887081819] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:44:14,676 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 05:44:14,676 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-06-06 05:44:14,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280655757] [2021-06-06 05:44:14,676 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-06 05:44:14,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:44:14,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-06 05:44:14,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-06-06 05:44:14,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:44:14,678 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:44:14,679 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 05:44:14,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:44:14,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:44:14,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 05:44:14,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 05:44:14,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:44:14,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:44:14,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:44:14,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 05:44:14,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 05:44:14,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:44:15,012 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:44:15,013 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:44:15,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:44:15,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1348287435, now seen corresponding path program 2 times [2021-06-06 05:44:15,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:44:15,014 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554587294] [2021-06-06 05:44:15,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:44:15,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:44:15,412 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 05:44:15,412 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:44:15,412 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554587294] [2021-06-06 05:44:15,412 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554587294] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:44:15,413 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1088574852] [2021-06-06 05:44:15,413 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 05:44:15,457 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 05:44:15,457 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 05:44:15,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 37 conjunts are in the unsatisfiable core [2021-06-06 05:44:15,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:44:15,997 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:44:15,998 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 05:44:16,240 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 05:44:16,265 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:44:16,286 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:44:16,287 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 05:44:16,504 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 05:44:16,548 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:44:16,591 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:44:16,591 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 05:44:16,856 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 3 xjuncts. [2021-06-06 05:44:17,292 WARN L205 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 103 [2021-06-06 05:44:17,294 INFO L628 ElimStorePlain]: treesize reduction 322, result has 68.1 percent of original size [2021-06-06 05:44:17,583 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 140 [2021-06-06 05:44:17,892 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 05:44:17,893 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:77, output treesize:228 [2021-06-06 05:44:17,981 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 05:44:17,981 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1088574852] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:44:17,981 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 05:44:17,981 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 16] total 25 [2021-06-06 05:44:17,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177743643] [2021-06-06 05:44:17,982 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-06 05:44:17,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:44:17,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-06 05:44:17,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=508, Unknown=0, NotChecked=0, Total=600 [2021-06-06 05:44:17,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:44:17,983 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:44:17,983 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 05:44:17,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:44:17,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:44:17,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 05:44:17,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 05:44:17,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:44:17,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:44:19,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:44:19,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:44:19,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 05:44:19,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 05:44:19,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:44:19,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 05:44:19,256 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-06-06 05:44:19,257 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:44:19,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:44:19,257 INFO L82 PathProgramCache]: Analyzing trace with hash 911449235, now seen corresponding path program 3 times [2021-06-06 05:44:19,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:44:19,258 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175644594] [2021-06-06 05:44:19,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:44:19,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:44:19,338 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 05:44:19,342 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:44:19,342 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175644594] [2021-06-06 05:44:19,342 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175644594] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:44:19,342 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810296596] [2021-06-06 05:44:19,342 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 05:44:19,392 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-06-06 05:44:19,392 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 05:44:19,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-06 05:44:19,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:44:19,560 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 05:44:19,560 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1810296596] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:44:19,560 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 05:44:19,561 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2021-06-06 05:44:19,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138240309] [2021-06-06 05:44:19,562 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-06 05:44:19,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:44:19,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-06 05:44:19,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-06-06 05:44:19,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:44:19,563 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:44:19,563 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 05:44:19,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:44:19,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:44:19,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 05:44:19,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 05:44:19,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:44:19,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 05:44:19,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:44:19,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:44:19,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:44:19,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 05:44:19,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 05:44:19,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:44:19,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 05:44:19,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-06 05:44:20,201 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:44:20,202 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:44:20,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:44:20,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1145065769, now seen corresponding path program 4 times [2021-06-06 05:44:20,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:44:20,202 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564628139] [2021-06-06 05:44:20,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:44:20,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:44:20,280 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 05:44:20,280 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:44:20,280 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564628139] [2021-06-06 05:44:20,280 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564628139] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:44:20,281 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773037361] [2021-06-06 05:44:20,281 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 05:44:20,323 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 05:44:20,323 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 05:44:20,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-06 05:44:20,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:44:20,444 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 05:44:20,445 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773037361] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:44:20,445 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 05:44:20,445 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2021-06-06 05:44:20,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360870671] [2021-06-06 05:44:20,445 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-06 05:44:20,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:44:20,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-06 05:44:20,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-06-06 05:44:20,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:44:20,446 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:44:20,446 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 05:44:20,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:44:20,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:44:20,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 05:44:20,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 05:44:20,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:44:20,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 05:44:20,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-06 05:44:20,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:44:20,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:44:20,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:44:20,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 05:44:20,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 05:44:20,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:44:20,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 05:44:20,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-06 05:44:20,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 05:44:20,812 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable166 [2021-06-06 05:44:20,813 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:44:20,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:44:20,813 INFO L82 PathProgramCache]: Analyzing trace with hash 754469045, now seen corresponding path program 5 times [2021-06-06 05:44:20,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:44:20,813 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871599237] [2021-06-06 05:44:20,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:44:20,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:44:21,360 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 05:44:21,361 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:44:21,361 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871599237] [2021-06-06 05:44:21,361 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871599237] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:44:21,361 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789672904] [2021-06-06 05:44:21,361 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 05:44:21,421 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-06-06 05:44:21,421 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 05:44:21,422 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 48 conjunts are in the unsatisfiable core [2021-06-06 05:44:21,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:44:30,827 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2021-06-06 05:44:31,353 WARN L205 SmtUtils]: Spent 475.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2021-06-06 05:44:32,104 WARN L205 SmtUtils]: Spent 710.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2021-06-06 05:44:32,144 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:44:32,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:44:32,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:44:32,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:44:32,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:44:32,148 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 05:44:32,151 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 05:44:32,163 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:44:32,165 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:44:32,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:44:32,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:44:32,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:44:32,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:44:32,169 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 05:44:32,172 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 05:44:32,183 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:44:32,245 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:44:32,245 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 05:44:32,460 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 125 [2021-06-06 05:44:33,097 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 197 [2021-06-06 05:44:33,490 WARN L205 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 240 [2021-06-06 05:44:34,583 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 307 DAG size of output: 287 [2021-06-06 05:44:35,591 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 307 DAG size of output: 287 [2021-06-06 05:44:36,646 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 315 DAG size of output: 295 [2021-06-06 05:44:37,009 WARN L205 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 242 [2021-06-06 05:44:37,495 WARN L205 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 231 [2021-06-06 05:44:37,889 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 184 [2021-06-06 05:44:38,039 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 198 [2021-06-06 05:44:38,236 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 198 [2021-06-06 05:44:39,156 WARN L205 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 242 [2021-06-06 05:44:39,542 WARN L205 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 240 [2021-06-06 05:44:39,926 WARN L205 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 240 [2021-06-06 05:44:40,382 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 87 [2021-06-06 05:44:40,520 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 136 [2021-06-06 05:44:40,737 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 157 [2021-06-06 05:44:41,804 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 285 DAG size of output: 287 [2021-06-06 05:44:42,870 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 313 DAG size of output: 293 [2021-06-06 05:44:43,896 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 283 DAG size of output: 285 [2021-06-06 05:44:45,059 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 287 DAG size of output: 289 [2021-06-06 05:44:46,171 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 286 DAG size of output: 288 [2021-06-06 05:44:47,140 WARN L205 SmtUtils]: Spent 952.00 ms on a formula simplification. DAG size of input: 285 DAG size of output: 287 [2021-06-06 05:44:47,865 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 97 [2021-06-06 05:44:48,100 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 147 [2021-06-06 05:44:48,535 WARN L205 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 242 [2021-06-06 05:44:49,016 WARN L205 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 231 [2021-06-06 05:44:49,356 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 184 [2021-06-06 05:44:49,488 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 198 [2021-06-06 05:44:49,619 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 198 [2021-06-06 05:44:50,401 WARN L205 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 242 [2021-06-06 05:44:50,784 WARN L205 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 240 [2021-06-06 05:44:51,159 WARN L205 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 240 [2021-06-06 05:44:52,190 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 285 DAG size of output: 287 [2021-06-06 05:44:53,210 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 283 DAG size of output: 285 [2021-06-06 05:44:54,225 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 283 DAG size of output: 285 [2021-06-06 05:44:55,386 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 287 DAG size of output: 289 [2021-06-06 05:44:55,390 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 05:44:57,657 WARN L205 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 290 DAG size of output: 248 [2021-06-06 05:44:57,658 INFO L628 ElimStorePlain]: treesize reduction 15036, result has 42.6 percent of original size [2021-06-06 05:44:58,070 WARN L205 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 249 [2021-06-06 05:44:58,382 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 234 DAG size of output: 236 [2021-06-06 05:44:58,493 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 188 [2021-06-06 05:44:59,281 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 188 [2021-06-06 05:44:59,760 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 05:44:59,761 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:106, output treesize:3 [2021-06-06 05:44:59,785 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 05:44:59,785 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789672904] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:44:59,785 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 05:44:59,785 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 30 [2021-06-06 05:44:59,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408763338] [2021-06-06 05:44:59,789 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-06-06 05:44:59,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:44:59,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-06-06 05:44:59,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=740, Unknown=5, NotChecked=0, Total=870 [2021-06-06 05:44:59,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:44:59,790 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:44:59,790 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 05:44:59,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:44:59,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:44:59,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 05:44:59,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 05:44:59,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:44:59,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 05:44:59,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-06 05:44:59,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 05:44:59,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:45:58,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:45:58,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:45:58,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 05:45:58,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 05:45:58,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:45:58,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 05:45:58,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-06 05:45:58,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 05:45:58,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-06 05:45:58,259 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable167 [2021-06-06 05:45:58,260 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:45:58,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:45:58,260 INFO L82 PathProgramCache]: Analyzing trace with hash -127394481, now seen corresponding path program 6 times [2021-06-06 05:45:58,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:45:58,260 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031951471] [2021-06-06 05:45:58,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:45:58,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:45:58,407 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 05:45:58,407 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:45:58,407 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031951471] [2021-06-06 05:45:58,407 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031951471] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:45:58,407 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [943933694] [2021-06-06 05:45:58,408 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 05:45:58,448 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-06-06 05:45:58,448 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 05:45:58,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 16 conjunts are in the unsatisfiable core [2021-06-06 05:45:58,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:45:58,700 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 05:45:58,700 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [943933694] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:45:58,700 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 05:45:58,700 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 29 [2021-06-06 05:45:58,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549470681] [2021-06-06 05:45:58,701 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-06-06 05:45:58,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:45:58,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-06-06 05:45:58,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=652, Unknown=0, NotChecked=0, Total=812 [2021-06-06 05:45:58,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:45:58,702 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:45:58,702 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 05:45:58,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:45:58,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:45:58,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 05:45:58,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 05:45:58,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:45:58,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 05:45:58,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-06 05:45:58,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 05:45:58,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-06 05:45:58,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:45:58,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:45:58,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:45:58,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 05:45:58,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 05:45:58,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:45:58,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 05:45:58,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-06 05:45:58,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 05:45:58,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-06 05:45:58,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 05:45:59,140 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable647,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:45:59,141 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:45:59,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:45:59,141 INFO L82 PathProgramCache]: Analyzing trace with hash 726661421, now seen corresponding path program 7 times [2021-06-06 05:45:59,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:45:59,141 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577819438] [2021-06-06 05:45:59,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:45:59,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:45:59,878 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 05:45:59,878 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:45:59,878 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577819438] [2021-06-06 05:45:59,878 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577819438] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:45:59,878 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132930528] [2021-06-06 05:45:59,878 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 05:45:59,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:45:59,925 WARN L261 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 64 conjunts are in the unsatisfiable core [2021-06-06 05:45:59,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:46:00,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:46:00,732 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:46:00,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:46:00,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:46:00,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:46:00,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:46:00,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:46:00,735 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:46:00,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:46:00,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:46:00,738 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:46:00,739 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 05:46:00,742 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 05:46:00,751 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:46:00,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:46:00,759 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:46:00,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:46:00,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:46:00,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:46:00,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:46:00,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:46:00,762 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:46:00,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:46:00,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:46:00,764 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:46:00,765 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 05:46:00,768 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 05:46:00,779 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:46:00,900 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-06-06 05:46:00,901 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:46:00,901 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 05:46:01,361 WARN L205 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 192 [2021-06-06 05:46:02,427 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 239 DAG size of output: 216 [2021-06-06 05:46:05,254 WARN L205 SmtUtils]: Spent 2.82 s on a formula simplification. DAG size of input: 270 DAG size of output: 240 [2021-06-06 05:46:07,989 WARN L205 SmtUtils]: Spent 2.73 s on a formula simplification. DAG size of input: 270 DAG size of output: 240 [2021-06-06 05:46:10,922 WARN L205 SmtUtils]: Spent 2.93 s on a formula simplification. DAG size of input: 292 DAG size of output: 262 [2021-06-06 05:46:20,785 WARN L205 SmtUtils]: Spent 9.86 s on a formula simplification. DAG size of input: 258 DAG size of output: 270 [2021-06-06 05:46:30,465 WARN L205 SmtUtils]: Spent 9.68 s on a formula simplification. DAG size of input: 253 DAG size of output: 274 [2021-06-06 05:46:40,162 WARN L205 SmtUtils]: Spent 9.69 s on a formula simplification. DAG size of input: 248 DAG size of output: 266 [2021-06-06 05:46:42,890 WARN L205 SmtUtils]: Spent 2.72 s on a formula simplification. DAG size of input: 240 DAG size of output: 240 [2021-06-06 05:46:43,185 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 145 [2021-06-06 05:46:44,256 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 219 DAG size of output: 219 [2021-06-06 05:46:44,686 WARN L205 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 197 [2021-06-06 05:46:44,968 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 155 [2021-06-06 05:46:45,391 WARN L205 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 167 [2021-06-06 05:46:46,008 WARN L205 SmtUtils]: Spent 615.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 161 [2021-06-06 05:46:46,257 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 163 [2021-06-06 05:46:47,310 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 326 DAG size of output: 308 [2021-06-06 05:46:50,448 WARN L205 SmtUtils]: Spent 3.14 s on a formula simplification. DAG size of input: 426 DAG size of output: 391 [2021-06-06 05:46:58,546 WARN L205 SmtUtils]: Spent 7.92 s on a formula simplification. DAG size of input: 513 DAG size of output: 465 [2021-06-06 05:47:17,964 WARN L205 SmtUtils]: Spent 19.42 s on a formula simplification. DAG size of input: 595 DAG size of output: 525 [2021-06-06 05:48:07,213 WARN L205 SmtUtils]: Spent 49.25 s on a formula simplification. DAG size of input: 694 DAG size of output: 619 [2021-06-06 05:50:05,866 WARN L205 SmtUtils]: Spent 1.98 m on a formula simplification. DAG size of input: 782 DAG size of output: 704 [2021-06-06 05:54:45,487 WARN L205 SmtUtils]: Spent 4.66 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