/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistent-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-inc-dec.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 10:52:47,714 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 10:52:47,716 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 10:52:47,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 10:52:47,790 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistent-NoLbe.epf [2021-07-14 10:52:47,815 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 10:52:47,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 10:52:47,816 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 10:52:47,816 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 10:52:47,818 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 10:52:47,818 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 10:52:47,818 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 10:52:47,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 10:52:47,818 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 10:52:47,818 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 10:52:47,819 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 10:52:47,819 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 10:52:47,819 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 10:52:47,819 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 10:52:47,819 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 10:52:47,819 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 10:52:47,820 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 10:52:47,820 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 10:52:47,820 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 10:52:47,820 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 10:52:47,820 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 10:52:47,820 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 10:52:47,820 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 10:52:47,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 10:52:47,820 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 10:52:47,820 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 10:52:47,821 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 10:52:47,840 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 10:52:47,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 10:52:47,841 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 10:52:47,841 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 10:52:47,841 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 10:52:47,841 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES [2021-07-14 10:52:47,841 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 10:52:48,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 10:52:48,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 10:52:48,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 10:52:48,072 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 10:52:48,072 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 10:52:48,073 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-inc-dec.wvr.bpl [2021-07-14 10:52:48,073 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-inc-dec.wvr.bpl' [2021-07-14 10:52:48,089 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 10:52:48,090 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 10:52:48,091 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 10:52:48,091 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 10:52:48,091 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 10:52:48,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:52:48" (1/1) ... [2021-07-14 10:52:48,104 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:52:48" (1/1) ... [2021-07-14 10:52:48,108 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 10:52:48,109 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 10:52:48,109 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 10:52:48,109 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 10:52:48,114 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:52:48" (1/1) ... [2021-07-14 10:52:48,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:52:48" (1/1) ... [2021-07-14 10:52:48,115 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:52:48" (1/1) ... [2021-07-14 10:52:48,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:52:48" (1/1) ... [2021-07-14 10:52:48,116 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:52:48" (1/1) ... [2021-07-14 10:52:48,119 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:52:48" (1/1) ... [2021-07-14 10:52:48,119 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:52:48" (1/1) ... [2021-07-14 10:52:48,120 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 10:52:48,120 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 10:52:48,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 10:52:48,121 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 10:52:48,121 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:52:48" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 10:52:48,179 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 10:52:48,179 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 10:52:48,179 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 10:52:48,179 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 10:52:48,179 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 10:52:48,180 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 10:52:48,180 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 10:52:48,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 10:52:48,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 10:52:48,180 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-14 10:52:48,180 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-14 10:52:48,180 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-14 10:52:48,180 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-07-14 10:52:48,180 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-07-14 10:52:48,180 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-07-14 10:52:48,180 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2021-07-14 10:52:48,181 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-07-14 10:52:48,181 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-07-14 10:52:48,181 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 10:52:48,325 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 10:52:48,325 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-14 10:52:48,326 INFO L202 PluginConnector]: Adding new model min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 10:52:48 BoogieIcfgContainer [2021-07-14 10:52:48,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 10:52:48,328 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 10:52:48,328 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 10:52:48,330 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 10:52:48,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:52:48" (1/2) ... [2021-07-14 10:52:48,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@378dc065 and model type min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 10:52:48, skipping insertion in model container [2021-07-14 10:52:48,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 10:52:48" (2/2) ... [2021-07-14 10:52:48,331 INFO L111 eAbstractionObserver]: Analyzing ICFG min-max-inc-dec.wvr.bpl [2021-07-14 10:52:48,335 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 10:52:48,335 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 10:52:48,335 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 10:52:48,335 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 10:52:48,414 INFO L149 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2021-07-14 10:52:48,432 INFO L255 AbstractCegarLoop]: Starting to check reachability of 6 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-14 10:52:48,476 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 10:52:48,477 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 10:52:48,477 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 10:52:48,477 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 10:52:48,477 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 10:52:48,477 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 10:52:48,477 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 10:52:48,477 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 10:52:48,678 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-14 10:52:48,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 10:52:48,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1644180160, now seen corresponding path program 1 times [2021-07-14 10:52:48,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 10:52:48,693 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720986323] [2021-07-14 10:52:48,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 10:52:48,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 10:52:48,902 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 10:52:48,902 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 10:52:48,902 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720986323] [2021-07-14 10:52:48,903 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720986323] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 10:52:48,903 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1095386012] [2021-07-14 10:52:48,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 10:52:48,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 10:52:48,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-14 10:52:48,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 10:52:49,131 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 10:52:49,132 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1095386012] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 10:52:49,132 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 10:52:49,132 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-07-14 10:52:49,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539100557] [2021-07-14 10:52:49,136 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-14 10:52:49,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 10:52:49,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-14 10:52:49,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-07-14 10:52:49,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 10:52:49,145 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 10:52:49,150 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 10:52:49,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 10:52:49,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 10:52:49,525 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-07-14 10:52:49,525 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-14 10:52:49,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 10:52:49,526 INFO L82 PathProgramCache]: Analyzing trace with hash -2131220802, now seen corresponding path program 2 times [2021-07-14 10:52:49,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 10:52:49,526 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897098072] [2021-07-14 10:52:49,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 10:52:49,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 10:52:49,577 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 10:52:49,577 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 10:52:49,578 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897098072] [2021-07-14 10:52:49,578 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897098072] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 10:52:49,578 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1790222305] [2021-07-14 10:52:49,578 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 [2021-07-14 10:52:49,624 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 10:52:49,625 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 10:52:49,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-14 10:52:49,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 10:52:49,731 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-14 10:52:49,731 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1790222305] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 10:52:49,732 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 10:52:49,732 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-07-14 10:52:49,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527551087] [2021-07-14 10:52:49,733 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-14 10:52:49,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 10:52:49,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-14 10:52:49,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-07-14 10:52:49,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 10:52:49,733 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 10:52:49,734 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 9 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 10:52:49,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 10:52:49,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 10:52:49,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 10:52:49,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 10:52:50,161 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 10:52:50,161 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-14 10:52:50,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 10:52:50,161 INFO L82 PathProgramCache]: Analyzing trace with hash -882205900, now seen corresponding path program 3 times [2021-07-14 10:52:50,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 10:52:50,162 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427282623] [2021-07-14 10:52:50,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 10:52:50,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 10:52:50,221 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-14 10:52:50,221 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 10:52:50,222 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427282623] [2021-07-14 10:52:50,222 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427282623] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 10:52:50,222 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840069246] [2021-07-14 10:52:50,222 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 10:52:50,264 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-07-14 10:52:50,264 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 10:52:50,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 6 conjunts are in the unsatisfiable core [2021-07-14 10:52:50,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 10:52:50,353 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-07-14 10:52:50,353 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1840069246] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 10:52:50,354 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 10:52:50,354 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-07-14 10:52:50,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161580914] [2021-07-14 10:52:50,354 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-14 10:52:50,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 10:52:50,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-14 10:52:50,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-07-14 10:52:50,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 10:52:50,355 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 10:52:50,355 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 10:52:50,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 10:52:50,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 10:52:50,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 10:52:50,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 10:52:50,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 10:52:50,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 10:52:50,744 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 10:52:50,745 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-14 10:52:50,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 10:52:50,745 INFO L82 PathProgramCache]: Analyzing trace with hash -113840842, now seen corresponding path program 4 times [2021-07-14 10:52:50,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 10:52:50,745 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877225064] [2021-07-14 10:52:50,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 10:52:50,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 10:52:50,884 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-07-14 10:52:50,885 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 10:52:50,885 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877225064] [2021-07-14 10:52:50,885 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877225064] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 10:52:50,885 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760161908] [2021-07-14 10:52:50,885 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 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 10:52:50,924 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 10:52:50,924 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 10:52:50,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 18 conjunts are in the unsatisfiable core [2021-07-14 10:52:50,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 10:52:51,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 7 [2021-07-14 10:52:51,094 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 10:52:51,095 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 10:52:51,095 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 10:52:51,095 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:3 [2021-07-14 10:52:51,132 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-07-14 10:52:51,132 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1760161908] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 10:52:51,132 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 10:52:51,132 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 13 [2021-07-14 10:52:51,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174663623] [2021-07-14 10:52:51,133 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-14 10:52:51,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 10:52:51,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-14 10:52:51,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-07-14 10:52:51,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 10:52:51,133 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 10:52:51,133 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 5.0) internal successors, (70), 13 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 10:52:51,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 10:52:51,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 10:52:51,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 10:52:51,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 10:52:52,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 10:52:52,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 10:52:52,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 10:52:52,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 10:52:52,478 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 10:52:52,478 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-14 10:52:52,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 10:52:52,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1292379552, now seen corresponding path program 5 times [2021-07-14 10:52:52,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 10:52:52,479 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369991613] [2021-07-14 10:52:52,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 10:52:52,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 10:52:52,542 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-14 10:52:52,542 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 10:52:52,542 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369991613] [2021-07-14 10:52:52,542 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369991613] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 10:52:52,542 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673795365] [2021-07-14 10:52:52,542 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 10:52:52,622 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-07-14 10:52:52,623 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 10:52:52,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 8 conjunts are in the unsatisfiable core [2021-07-14 10:52:52,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 10:52:52,727 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-07-14 10:52:52,727 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673795365] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 10:52:52,727 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 10:52:52,728 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-07-14 10:52:52,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350776727] [2021-07-14 10:52:52,728 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-14 10:52:52,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 10:52:52,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-14 10:52:52,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-07-14 10:52:52,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 10:52:52,729 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 10:52:52,731 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 10 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 10:52:52,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 10:52:52,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 10:52:52,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 10:52:52,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 10:52:52,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 10:52:53,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 10:52:53,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 10:52:53,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 10:52:53,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 10:52:53,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 10:52:53,376 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 10:52:53,377 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-14 10:52:53,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 10:52:53,377 INFO L82 PathProgramCache]: Analyzing trace with hash -850849072, now seen corresponding path program 6 times [2021-07-14 10:52:53,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 10:52:53,377 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938547738] [2021-07-14 10:52:53,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 10:52:53,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 10:52:53,481 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 46 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-07-14 10:52:53,482 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 10:52:53,482 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938547738] [2021-07-14 10:52:53,484 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938547738] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 10:52:53,484 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696659147] [2021-07-14 10:52:53,484 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 10:52:53,529 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-07-14 10:52:53,529 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 10:52:53,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 12 conjunts are in the unsatisfiable core [2021-07-14 10:52:53,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 10:52:53,731 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 30 proven. 20 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-07-14 10:52:53,731 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696659147] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 10:52:53,731 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 10:52:53,731 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 20 [2021-07-14 10:52:53,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824722071] [2021-07-14 10:52:53,732 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-14 10:52:53,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 10:52:53,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-14 10:52:53,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2021-07-14 10:52:53,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 10:52:53,732 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 10:52:53,733 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 4.476190476190476) internal successors, (94), 20 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 10:52:53,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 10:52:53,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 10:52:53,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 10:52:53,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 10:52:53,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 10:52:53,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 10:52:56,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 10:52:56,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 10:52:56,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 10:52:56,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 10:52:56,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-14 10:52:56,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-07-14 10:52:56,899 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 10:52:56,900 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-14 10:52:56,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 10:52:56,900 INFO L82 PathProgramCache]: Analyzing trace with hash -1824382964, now seen corresponding path program 7 times [2021-07-14 10:52:56,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 10:52:56,900 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624015664] [2021-07-14 10:52:56,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 10:52:56,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 10:52:57,182 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 57 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 10:52:57,183 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 10:52:57,183 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624015664] [2021-07-14 10:52:57,183 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624015664] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 10:52:57,183 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573876466] [2021-07-14 10:52:57,183 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 10:52:57,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 10:52:57,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 10 conjunts are in the unsatisfiable core [2021-07-14 10:52:57,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 10:52:57,507 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 22 proven. 18 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-07-14 10:52:57,507 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573876466] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 10:52:57,507 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 10:52:57,507 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 10] total 31 [2021-07-14 10:52:57,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372999782] [2021-07-14 10:52:57,508 INFO L462 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-07-14 10:52:57,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 10:52:57,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-07-14 10:52:57,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=871, Unknown=0, NotChecked=0, Total=992 [2021-07-14 10:52:57,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 10:52:57,509 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 10:52:57,509 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 3.21875) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 10:52:57,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 10:52:57,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 10:52:57,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 10:52:57,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 10:52:57,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-07-14 10:52:57,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2021-07-14 10:52:57,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 10:52:58,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 10:52:58,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 10:52:58,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 10:52:58,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 10:52:58,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-14 10:52:58,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-07-14 10:52:58,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-14 10:52:59,108 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-07-14 10:52:59,109 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-14 10:52:59,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 10:52:59,109 INFO L82 PathProgramCache]: Analyzing trace with hash 409134192, now seen corresponding path program 8 times [2021-07-14 10:52:59,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 10:52:59,110 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864546479] [2021-07-14 10:52:59,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 10:52:59,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 10:52:59,234 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 33 proven. 34 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-07-14 10:52:59,235 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 10:52:59,235 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864546479] [2021-07-14 10:52:59,235 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864546479] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 10:52:59,235 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033588663] [2021-07-14 10:52:59,235 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 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 10:52:59,280 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 10:52:59,280 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 10:52:59,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-14 10:52:59,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 10:52:59,473 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 37 proven. 30 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-07-14 10:52:59,473 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033588663] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 10:52:59,473 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 10:52:59,473 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 20 [2021-07-14 10:52:59,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383231337] [2021-07-14 10:52:59,475 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-14 10:52:59,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 10:52:59,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-14 10:52:59,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2021-07-14 10:52:59,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 10:52:59,476 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 10:52:59,476 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 3.7142857142857144) internal successors, (78), 20 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 10:52:59,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 10:52:59,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 10:52:59,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 10:52:59,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 10:52:59,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-07-14 10:52:59,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2021-07-14 10:52:59,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-07-14 10:52:59,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 10:53:08,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 10:53:08,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 10:53:08,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 10:53:08,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 10:53:08,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-14 10:53:08,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-07-14 10:53:08,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-07-14 10:53:08,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 10:53:08,341 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 10:53:08,341 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-14 10:53:08,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 10:53:08,341 INFO L82 PathProgramCache]: Analyzing trace with hash -1775740350, now seen corresponding path program 9 times [2021-07-14 10:53:08,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 10:53:08,342 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712747464] [2021-07-14 10:53:08,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 10:53:08,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 10:53:08,491 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 31 proven. 60 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-07-14 10:53:08,491 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 10:53:08,492 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712747464] [2021-07-14 10:53:08,492 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712747464] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 10:53:08,492 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835995536] [2021-07-14 10:53:08,492 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 10:53:08,550 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-07-14 10:53:08,551 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 10:53:08,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 19 conjunts are in the unsatisfiable core [2021-07-14 10:53:08,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 10:53:08,850 INFO L354 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2021-07-14 10:53:08,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 28 [2021-07-14 10:53:08,854 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-07-14 10:53:08,882 INFO L628 ElimStorePlain]: treesize reduction 10, result has 79.6 percent of original size [2021-07-14 10:53:08,895 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-14 10:53:08,895 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:32, output treesize:39 [2021-07-14 10:53:09,012 INFO L354 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2021-07-14 10:53:09,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 18 treesize of output 30 [2021-07-14 10:53:09,021 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-07-14 10:53:09,041 INFO L628 ElimStorePlain]: treesize reduction 15, result has 67.4 percent of original size [2021-07-14 10:53:09,056 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-14 10:53:09,056 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:31, output treesize:28 [2021-07-14 10:53:09,218 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 10:53:09,218 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2021-07-14 10:53:09,224 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-07-14 10:53:09,232 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 10:53:09,242 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-07-14 10:53:09,242 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:15 [2021-07-14 10:53:09,311 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 30 proven. 26 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2021-07-14 10:53:09,311 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [835995536] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 10:53:09,311 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 10:53:09,311 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 27 [2021-07-14 10:53:09,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251400302] [2021-07-14 10:53:09,312 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-07-14 10:53:09,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 10:53:09,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-07-14 10:53:09,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=606, Unknown=0, NotChecked=0, Total=702 [2021-07-14 10:53:09,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 10:53:09,314 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 10:53:09,314 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 10:53:09,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 10:53:09,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 10:53:09,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 10:53:09,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 10:53:09,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-07-14 10:53:09,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2021-07-14 10:53:09,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-07-14 10:53:09,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 10:53:09,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 10:53:13,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 10:53:13,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 10:53:13,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 10:53:13,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 10:53:13,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-14 10:53:13,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-07-14 10:53:13,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-07-14 10:53:13,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 10:53:13,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-07-14 10:53:13,419 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 10:53:13,420 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-14 10:53:13,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 10:53:13,420 INFO L82 PathProgramCache]: Analyzing trace with hash 654741224, now seen corresponding path program 10 times [2021-07-14 10:53:13,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 10:53:13,420 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529044734] [2021-07-14 10:53:13,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 10:53:13,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 10:53:13,546 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 55 proven. 68 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2021-07-14 10:53:13,546 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 10:53:13,546 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529044734] [2021-07-14 10:53:13,546 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529044734] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 10:53:13,546 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617560083] [2021-07-14 10:53:13,547 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 10:53:13,593 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 10:53:13,593 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 10:53:13,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-14 10:53:13,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 10:53:13,931 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 63 proven. 56 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-07-14 10:53:13,931 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617560083] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 10:53:13,931 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 10:53:13,931 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17] total 31 [2021-07-14 10:53:13,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774678848] [2021-07-14 10:53:13,932 INFO L462 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-07-14 10:53:13,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 10:53:13,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-07-14 10:53:13,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=839, Unknown=0, NotChecked=0, Total=992 [2021-07-14 10:53:13,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 10:53:13,933 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 10:53:13,934 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 3.375) internal successors, (108), 31 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 10:53:13,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 10:53:13,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 10:53:13,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 10:53:13,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 10:53:13,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-07-14 10:53:13,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2021-07-14 10:53:13,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-07-14 10:53:13,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 10:53:13,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-07-14 10:53:13,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 10:53:18,764 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2021-07-14 10:54:13,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 10:54:13,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 10:54:13,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 10:54:13,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 10:54:13,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-14 10:54:13,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-07-14 10:54:13,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-07-14 10:54:13,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 10:54:13,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-07-14 10:54:13,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-07-14 10:54:14,125 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-07-14 10:54:14,128 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-14 10:54:14,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 10:54:14,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1069837606, now seen corresponding path program 11 times [2021-07-14 10:54:14,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 10:54:14,129 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305564480] [2021-07-14 10:54:14,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 10:54:14,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 10:54:14,274 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 66 proven. 95 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-07-14 10:54:14,274 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 10:54:14,274 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305564480] [2021-07-14 10:54:14,274 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305564480] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 10:54:14,274 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905130934] [2021-07-14 10:54:14,275 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 10:54:14,402 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-07-14 10:54:14,402 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 10:54:14,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 18 conjunts are in the unsatisfiable core [2021-07-14 10:54:14,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 10:54:14,673 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 94 proven. 74 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2021-07-14 10:54:14,673 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1905130934] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 10:54:14,673 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 10:54:14,673 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 28 [2021-07-14 10:54:14,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459943729] [2021-07-14 10:54:14,674 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-07-14 10:54:14,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 10:54:14,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-07-14 10:54:14,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=662, Unknown=0, NotChecked=0, Total=812 [2021-07-14 10:54:14,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 10:54:14,675 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 10:54:14,675 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 3.689655172413793) internal successors, (107), 28 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 10:54:14,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 10:54:14,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 10:54:14,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 10:54:14,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 10:54:14,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-07-14 10:54:14,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2021-07-14 10:54:14,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-07-14 10:54:14,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 10:54:14,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2021-07-14 10:54:14,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2021-07-14 10:54:14,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 10:54:20,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 10:54:20,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 10:54:20,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 10:54:20,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 10:54:20,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-14 10:54:20,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-07-14 10:54:20,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-07-14 10:54:20,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 10:54:20,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-07-14 10:54:20,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-07-14 10:54:20,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2021-07-14 10:54:21,057 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 10:54:21,057 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-14 10:54:21,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 10:54:21,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1885450476, now seen corresponding path program 12 times [2021-07-14 10:54:21,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 10:54:21,058 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912387411] [2021-07-14 10:54:21,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 10:54:21,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 10:54:21,257 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 231 proven. 97 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2021-07-14 10:54:21,257 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 10:54:21,257 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912387411] [2021-07-14 10:54:21,257 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912387411] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 10:54:21,257 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729302825] [2021-07-14 10:54:21,257 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 10:54:21,429 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2021-07-14 10:54:21,429 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 10:54:21,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 22 conjunts are in the unsatisfiable core [2021-07-14 10:54:21,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 10:54:21,870 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 117 proven. 242 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2021-07-14 10:54:21,870 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729302825] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 10:54:21,871 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 10:54:21,871 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 37 [2021-07-14 10:54:21,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030227444] [2021-07-14 10:54:21,872 INFO L462 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-07-14 10:54:21,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 10:54:21,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-07-14 10:54:21,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=290, Invalid=1116, Unknown=0, NotChecked=0, Total=1406 [2021-07-14 10:54:21,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 10:54:21,873 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 10:54:21,873 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 38 states, 38 states have (on average 3.4210526315789473) internal successors, (130), 37 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 10:54:21,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 10:54:21,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 10:54:21,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 10:54:21,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 10:54:21,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-07-14 10:54:21,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2021-07-14 10:54:21,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-07-14 10:54:21,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 10:54:21,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2021-07-14 10:54:21,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2021-07-14 10:54:21,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 139 states. [2021-07-14 10:54:21,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 10:54:28,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 10:54:28,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 10:54:28,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 10:54:28,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 10:54:28,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-14 10:54:28,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-07-14 10:54:28,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-07-14 10:54:28,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 10:54:28,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-07-14 10:54:28,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-07-14 10:54:28,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2021-07-14 10:54:28,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-07-14 10:54:28,330 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-07-14 10:54:28,331 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-14 10:54:28,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 10:54:28,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1085982206, now seen corresponding path program 13 times [2021-07-14 10:54:28,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 10:54:28,331 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971185034] [2021-07-14 10:54:28,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 10:54:28,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 10:54:28,826 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 259 proven. 177 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-07-14 10:54:28,827 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 10:54:28,827 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971185034] [2021-07-14 10:54:28,827 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971185034] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 10:54:28,827 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339356128] [2021-07-14 10:54:28,827 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 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 10:54:28,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 10:54:28,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 21 conjunts are in the unsatisfiable core [2021-07-14 10:54:28,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 10:54:29,603 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 225 proven. 91 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2021-07-14 10:54:29,603 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1339356128] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 10:54:29,603 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 10:54:29,604 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 21] total 57 [2021-07-14 10:54:29,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871666115] [2021-07-14 10:54:29,605 INFO L462 AbstractCegarLoop]: Interpolant automaton has 58 states [2021-07-14 10:54:29,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 10:54:29,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-07-14 10:54:29,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=478, Invalid=2828, Unknown=0, NotChecked=0, Total=3306 [2021-07-14 10:54:29,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 10:54:29,607 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 10:54:29,608 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 58 states, 58 states have (on average 2.8275862068965516) internal successors, (164), 57 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 10:54:29,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 10:54:29,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 10:54:29,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 10:54:29,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 10:54:29,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-07-14 10:54:29,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2021-07-14 10:54:29,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-07-14 10:54:29,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 10:54:29,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2021-07-14 10:54:29,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2021-07-14 10:54:29,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 139 states. [2021-07-14 10:54:29,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-07-14 10:54:29,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.