/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/prod-cons-eq.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-13 22:48:13,863 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-13 22:48:13,865 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-13 22:48:13,894 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-13 22:48:13,940 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Lockstep.epf [2021-06-13 22:48:13,977 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-13 22:48:13,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-13 22:48:13,978 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-13 22:48:13,978 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-13 22:48:13,980 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-13 22:48:13,980 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-13 22:48:13,980 INFO L138 SettingsManager]: * Use SBE=true [2021-06-13 22:48:13,980 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-13 22:48:13,981 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-13 22:48:13,981 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-13 22:48:13,981 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-13 22:48:13,981 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-13 22:48:13,982 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-13 22:48:13,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-13 22:48:13,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-13 22:48:13,982 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-13 22:48:13,982 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-13 22:48:13,982 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-13 22:48:13,982 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-13 22:48:13,982 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-13 22:48:13,982 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-13 22:48:13,983 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-13 22:48:13,983 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-13 22:48:13,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 22:48:13,983 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-13 22:48:13,983 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-13 22:48:13,983 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-13 22:48:13,983 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-13 22:48:13,983 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-06-13 22:48:13,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-13 22:48:13,984 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-13 22:48:13,984 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-13 22:48:13,984 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-13 22:48:13,984 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-13 22:48:13,984 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-13 22:48:14,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-13 22:48:14,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-13 22:48:14,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-13 22:48:14,244 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-13 22:48:14,244 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-13 22:48:14,245 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/prod-cons-eq.wvr.bpl [2021-06-13 22:48:14,245 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/prod-cons-eq.wvr.bpl' [2021-06-13 22:48:14,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-13 22:48:14,271 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-13 22:48:14,272 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-13 22:48:14,272 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-13 22:48:14,272 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-13 22:48:14,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 10:48:14" (1/1) ... [2021-06-13 22:48:14,286 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 10:48:14" (1/1) ... [2021-06-13 22:48:14,291 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-13 22:48:14,292 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-13 22:48:14,292 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-13 22:48:14,292 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-13 22:48:14,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 10:48:14" (1/1) ... [2021-06-13 22:48:14,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 10:48:14" (1/1) ... [2021-06-13 22:48:14,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 10:48:14" (1/1) ... [2021-06-13 22:48:14,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 10:48:14" (1/1) ... [2021-06-13 22:48:14,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 10:48:14" (1/1) ... [2021-06-13 22:48:14,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 10:48:14" (1/1) ... [2021-06-13 22:48:14,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 10:48:14" (1/1) ... [2021-06-13 22:48:14,312 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-13 22:48:14,313 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-13 22:48:14,313 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-13 22:48:14,314 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-13 22:48:14,315 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 10:48:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 22:48:14,371 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-13 22:48:14,371 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-13 22:48:14,371 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-13 22:48:14,371 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-13 22:48:14,371 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-13 22:48:14,371 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-13 22:48:14,371 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-13 22:48:14,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-13 22:48:14,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-13 22:48:14,372 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-13 22:48:14,372 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-13 22:48:14,372 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-13 22:48:14,372 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-13 22:48:14,586 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-13 22:48:14,586 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-13 22:48:14,587 INFO L202 PluginConnector]: Adding new model prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 10:48:14 BoogieIcfgContainer [2021-06-13 22:48:14,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-13 22:48:14,589 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-13 22:48:14,589 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-13 22:48:14,591 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-13 22:48:14,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 10:48:14" (1/2) ... [2021-06-13 22:48:14,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6297685a and model type prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 10:48:14, skipping insertion in model container [2021-06-13 22:48:14,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 10:48:14" (2/2) ... [2021-06-13 22:48:14,592 INFO L111 eAbstractionObserver]: Analyzing ICFG prod-cons-eq.wvr.bpl [2021-06-13 22:48:14,596 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-13 22:48:14,596 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-13 22:48:14,596 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-13 22:48:14,596 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-13 22:48:14,621 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-13 22:48:14,634 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-13 22:48:14,665 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 22:48:14,665 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 22:48:14,665 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 22:48:14,665 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 22:48:14,665 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 22:48:14,665 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 22:48:14,665 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 22:48:14,666 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-13 22:48:14,818 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 22:48:14,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 22:48:14,827 INFO L82 PathProgramCache]: Analyzing trace with hash -986892680, now seen corresponding path program 1 times [2021-06-13 22:48:14,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 22:48:14,833 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805488920] [2021-06-13 22:48:14,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 22:48:14,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 22:48:14,964 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-06-13 22:48:14,964 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 22:48:14,964 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805488920] [2021-06-13 22:48:14,965 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805488920] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 22:48:14,965 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 22:48:14,965 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-13 22:48:14,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000487579] [2021-06-13 22:48:14,968 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-13 22:48:14,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 22:48:14,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-13 22:48:14,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-13 22:48:14,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 22:48:14,982 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 22:48:14,992 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 22:48:14,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 22:48:15,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 22:48:15,052 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-13 22:48:15,052 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 22:48:15,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 22:48:15,054 INFO L82 PathProgramCache]: Analyzing trace with hash -347771374, now seen corresponding path program 2 times [2021-06-13 22:48:15,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 22:48:15,055 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381652799] [2021-06-13 22:48:15,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 22:48:15,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 22:48:15,093 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-06-13 22:48:15,093 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 22:48:15,093 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381652799] [2021-06-13 22:48:15,093 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381652799] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 22:48:15,093 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 22:48:15,093 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-13 22:48:15,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867785373] [2021-06-13 22:48:15,096 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-13 22:48:15,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 22:48:15,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-13 22:48:15,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-13 22:48:15,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 22:48:15,099 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 22:48:15,100 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 22:48:15,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 22:48:15,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 22:48:15,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 22:48:15,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 22:48:15,125 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-13 22:48:15,125 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 22:48:15,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 22:48:15,125 INFO L82 PathProgramCache]: Analyzing trace with hash -2031316168, now seen corresponding path program 3 times [2021-06-13 22:48:15,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 22:48:15,125 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675381498] [2021-06-13 22:48:15,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 22:48:15,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 22:48:15,155 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-06-13 22:48:15,155 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 22:48:15,155 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675381498] [2021-06-13 22:48:15,155 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675381498] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 22:48:15,155 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 22:48:15,155 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-13 22:48:15,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752635728] [2021-06-13 22:48:15,156 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-13 22:48:15,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 22:48:15,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-13 22:48:15,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-13 22:48:15,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 22:48:15,157 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 22:48:15,157 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 22:48:15,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 22:48:15,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 22:48:15,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 22:48:15,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 22:48:15,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 22:48:15,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 22:48:15,207 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-13 22:48:15,207 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 22:48:15,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 22:48:15,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1833420004, now seen corresponding path program 4 times [2021-06-13 22:48:15,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 22:48:15,209 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258001401] [2021-06-13 22:48:15,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 22:48:15,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 22:48:15,279 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-06-13 22:48:15,279 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 22:48:15,279 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258001401] [2021-06-13 22:48:15,279 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258001401] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 22:48:15,280 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 22:48:15,280 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-13 22:48:15,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150993081] [2021-06-13 22:48:15,281 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-13 22:48:15,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 22:48:15,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-13 22:48:15,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-13 22:48:15,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 22:48:15,283 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 22:48:15,283 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 22:48:15,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 22:48:15,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 22:48:15,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 22:48:15,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 22:48:15,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 22:48:15,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 22:48:15,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 22:48:15,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 22:48:15,356 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-13 22:48:15,356 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 22:48:15,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 22:48:15,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1325888646, now seen corresponding path program 5 times [2021-06-13 22:48:15,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 22:48:15,361 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210883822] [2021-06-13 22:48:15,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 22:48:15,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 22:48:15,472 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 22:48:15,472 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 22:48:15,472 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210883822] [2021-06-13 22:48:15,472 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210883822] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 22:48:15,473 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860170253] [2021-06-13 22:48:15,473 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 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 22:48:15,515 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-06-13 22:48:15,516 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 22:48:15,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 13 conjunts are in the unsatisfiable core [2021-06-13 22:48:15,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 22:48:15,641 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 17 treesize of output 13 [2021-06-13 22:48:15,642 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-13 22:48:15,644 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 22:48:15,644 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-13 22:48:15,644 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:9 [2021-06-13 22:48:15,656 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 19 treesize of output 15 [2021-06-13 22:48:15,659 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-13 22:48:15,661 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 22:48:15,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-06-13 22:48:15,664 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-13 22:48:15,665 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 22:48:15,665 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-06-13 22:48:15,665 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:19, output treesize:3 [2021-06-13 22:48:15,679 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 22:48:15,679 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860170253] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 22:48:15,679 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 22:48:15,679 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 6 [2021-06-13 22:48:15,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440894765] [2021-06-13 22:48:15,680 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 22:48:15,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 22:48:15,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 22:48:15,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-13 22:48:15,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 22:48:15,680 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 22:48:15,680 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 22:48:15,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 22:48:15,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 22:48:15,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 22:48:15,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 22:48:15,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 22:48:15,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 22:48:15,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 22:48:15,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 22:48:15,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 22:48:15,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 22:48:15,963 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 22:48:15,964 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 22:48:15,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 22:48:15,964 INFO L82 PathProgramCache]: Analyzing trace with hash -48624362, now seen corresponding path program 6 times [2021-06-13 22:48:15,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 22:48:15,964 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850354836] [2021-06-13 22:48:15,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 22:48:15,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 22:48:16,019 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-13 22:48:16,019 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 22:48:16,020 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850354836] [2021-06-13 22:48:16,020 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850354836] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 22:48:16,020 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2022943280] [2021-06-13 22:48:16,020 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 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 22:48:16,054 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-06-13 22:48:16,054 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 22:48:16,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-13 22:48:16,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 22:48:16,141 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 12 treesize of output 8 [2021-06-13 22:48:16,142 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-13 22:48:16,143 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 22:48:16,144 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-13 22:48:16,144 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:4 [2021-06-13 22:48:16,176 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-13 22:48:16,177 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2022943280] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 22:48:16,177 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 22:48:16,177 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-06-13 22:48:16,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015604103] [2021-06-13 22:48:16,177 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-13 22:48:16,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 22:48:16,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-13 22:48:16,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-06-13 22:48:16,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 22:48:16,178 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 22:48:16,178 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 10 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 22:48:16,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 22:48:16,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 22:48:16,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 22:48:16,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 22:48:16,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-13 22:48:16,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 22:48:16,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 22:48:16,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 22:48:16,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 22:48:16,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 22:48:16,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 22:48:16,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-13 22:48:16,820 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 22:48:16,821 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 22:48:16,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 22:48:16,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1633441901, now seen corresponding path program 7 times [2021-06-13 22:48:16,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 22:48:16,822 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829222991] [2021-06-13 22:48:16,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 22:48:16,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 22:48:16,887 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-06-13 22:48:16,887 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 22:48:16,888 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829222991] [2021-06-13 22:48:16,888 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829222991] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 22:48:16,888 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710685629] [2021-06-13 22:48:16,888 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 22:48:16,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 22:48:16,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 14 conjunts are in the unsatisfiable core [2021-06-13 22:48:16,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 22:48:17,152 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 22:48:17,152 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 18 [2021-06-13 22:48:17,156 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-13 22:48:17,157 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 22:48:17,157 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-13 22:48:17,157 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2021-06-13 22:48:17,170 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 22:48:17,170 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1710685629] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 22:48:17,170 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 22:48:17,171 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 12 [2021-06-13 22:48:17,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559624051] [2021-06-13 22:48:17,171 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-13 22:48:17,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 22:48:17,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-13 22:48:17,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-06-13 22:48:17,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 22:48:17,172 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 22:48:17,172 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 12 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 22:48:17,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 22:48:17,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 22:48:17,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 22:48:17,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 22:48:17,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-13 22:48:17,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-13 22:48:17,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 22:48:17,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 22:48:17,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 22:48:17,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 22:48:17,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 22:48:17,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 22:48:17,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-13 22:48:17,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-13 22:48:17,712 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 22:48:17,713 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 22:48:17,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 22:48:17,713 INFO L82 PathProgramCache]: Analyzing trace with hash -924151216, now seen corresponding path program 8 times [2021-06-13 22:48:17,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 22:48:17,713 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289802132] [2021-06-13 22:48:17,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 22:48:17,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 22:48:17,896 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-13 22:48:17,896 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 22:48:17,896 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289802132] [2021-06-13 22:48:17,896 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289802132] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 22:48:17,896 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886355268] [2021-06-13 22:48:17,896 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 22:48:17,930 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 22:48:17,931 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 22:48:17,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 29 conjunts are in the unsatisfiable core [2021-06-13 22:48:17,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 22:48:18,042 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 [2021-06-13 22:48:18,043 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-13 22:48:18,050 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 22:48:18,061 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-06-13 22:48:18,061 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:41 [2021-06-13 22:48:18,179 INFO L354 Elim1Store]: treesize reduction 30, result has 9.1 percent of original size [2021-06-13 22:48:18,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 25 [2021-06-13 22:48:18,180 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-13 22:48:18,186 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 22:48:18,189 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-06-13 22:48:18,189 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:53, output treesize:25 [2021-06-13 22:48:18,588 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 22:48:18,588 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 31 treesize of output 31 [2021-06-13 22:48:18,603 INFO L550 ElimStorePlain]: Start of recursive call 2: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-06-13 22:48:18,609 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 22:48:18,622 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 22:48:18,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-06-13 22:48:18,626 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-13 22:48:18,630 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 22:48:18,631 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-06-13 22:48:18,631 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:31, output treesize:3 [2021-06-13 22:48:18,656 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 22:48:18,656 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886355268] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 22:48:18,657 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 22:48:18,657 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2021-06-13 22:48:18,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301573873] [2021-06-13 22:48:18,657 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-13 22:48:18,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 22:48:18,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-13 22:48:18,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=251, Unknown=1, NotChecked=0, Total=306 [2021-06-13 22:48:18,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 22:48:18,658 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 22:48:18,658 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 17 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) [2021-06-13 22:48:18,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 22:48:18,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 22:48:18,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 22:48:18,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 22:48:18,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-13 22:48:18,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-13 22:48:18,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-13 22:48:18,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 22:48:20,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 22:48:20,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 22:48:20,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 22:48:20,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 22:48:20,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 22:48:20,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-13 22:48:20,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-13 22:48:20,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-13 22:48:20,864 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 22:48:20,865 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 22:48:20,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 22:48:20,865 INFO L82 PathProgramCache]: Analyzing trace with hash 2035097924, now seen corresponding path program 9 times [2021-06-13 22:48:20,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 22:48:20,865 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550965449] [2021-06-13 22:48:20,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 22:48:20,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 22:48:21,068 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-06-13 22:48:21,068 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 22:48:21,068 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550965449] [2021-06-13 22:48:21,068 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550965449] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 22:48:21,068 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537630577] [2021-06-13 22:48:21,068 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 22:48:21,104 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-06-13 22:48:21,104 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 22:48:21,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 48 conjunts are in the unsatisfiable core [2021-06-13 22:48:21,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 22:48:21,481 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 22:48:21,482 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2021-06-13 22:48:21,491 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-13 22:48:21,506 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 22:48:21,539 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-06-13 22:48:21,539 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:78, output treesize:71 [2021-06-13 22:48:21,811 INFO L354 Elim1Store]: treesize reduction 112, result has 13.2 percent of original size [2021-06-13 22:48:21,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 57 treesize of output 47 [2021-06-13 22:48:21,817 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-13 22:48:21,846 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 22:48:21,870 INFO L354 Elim1Store]: treesize reduction 112, result has 13.2 percent of original size [2021-06-13 22:48:21,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 57 treesize of output 47 [2021-06-13 22:48:21,875 INFO L550 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-13 22:48:21,901 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 22:48:21,955 INFO L550 ElimStorePlain]: Start of recursive call 1: 10 dim-0 vars, 2 dim-1 vars, End of recursive call: 7 dim-0 vars, and 2 xjuncts. [2021-06-13 22:48:21,955 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 12 variables, input treesize:177, output treesize:105 [2021-06-13 22:48:24,325 WARN L205 SmtUtils]: Spent 1.91 s on a formula simplification that was a NOOP. DAG size: 37 [2021-06-13 22:48:24,339 INFO L446 ElimStorePlain]: Different costs {1=[v_prenex_8], 3=[produce]} [2021-06-13 22:48:24,346 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 22:48:24,346 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 43 treesize of output 39 [2021-06-13 22:48:24,353 INFO L550 ElimStorePlain]: Start of recursive call 2: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-06-13 22:48:24,365 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 22:48:24,375 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 22:48:24,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 47 [2021-06-13 22:48:24,406 INFO L550 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-06-13 22:48:24,422 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 22:48:24,438 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 22:48:24,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 31 treesize of output 45 [2021-06-13 22:48:24,447 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-13 22:48:24,461 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 22:48:24,478 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 22:48:24,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 31 treesize of output 49 [2021-06-13 22:48:24,492 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-13 22:48:24,512 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 22:48:24,515 INFO L550 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 2 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-06-13 22:48:24,515 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 11 variables, input treesize:91, output treesize:3 [2021-06-13 22:48:24,528 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 1 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 22:48:24,528 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537630577] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 22:48:24,529 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 22:48:24,529 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 16] total 22 [2021-06-13 22:48:24,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164303993] [2021-06-13 22:48:24,529 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-06-13 22:48:24,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 22:48:24,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-06-13 22:48:24,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=438, Unknown=0, NotChecked=0, Total=506 [2021-06-13 22:48:24,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 22:48:24,533 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 22:48:24,533 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.739130434782609) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 22:48:24,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 22:48:24,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 22:48:24,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 22:48:24,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 22:48:24,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-13 22:48:24,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-13 22:48:24,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-13 22:48:24,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-13 22:48:24,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 22:48:25,282 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 83 [2021-06-13 22:48:28,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 22:48:28,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 22:48:28,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 22:48:28,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 22:48:28,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 22:48:28,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-13 22:48:28,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-13 22:48:28,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-13 22:48:28,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-13 22:48:28,889 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 22:48:28,895 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-13 22:48:28,896 INFO L202 PluginConnector]: Adding new model prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.06 10:48:28 BasicIcfg [2021-06-13 22:48:28,896 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-13 22:48:28,897 INFO L168 Benchmark]: Toolchain (without parser) took 14625.70 ms. Allocated memory was 200.3 MB in the beginning and 305.1 MB in the end (delta: 104.9 MB). Free memory was 180.1 MB in the beginning and 240.4 MB in the end (delta: -60.3 MB). Peak memory consumption was 45.1 MB. Max. memory is 8.0 GB. [2021-06-13 22:48:28,897 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 200.3 MB. Free memory is still 181.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-13 22:48:28,897 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.67 ms. Allocated memory is still 200.3 MB. Free memory was 180.0 MB in the beginning and 178.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-13 22:48:28,897 INFO L168 Benchmark]: Boogie Preprocessor took 20.20 ms. Allocated memory is still 200.3 MB. Free memory was 178.6 MB in the beginning and 177.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-13 22:48:28,897 INFO L168 Benchmark]: RCFGBuilder took 274.33 ms. Allocated memory is still 200.3 MB. Free memory was 177.5 MB in the beginning and 163.6 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-06-13 22:48:28,897 INFO L168 Benchmark]: TraceAbstraction took 14307.87 ms. Allocated memory was 200.3 MB in the beginning and 305.1 MB in the end (delta: 104.9 MB). Free memory was 163.1 MB in the beginning and 240.4 MB in the end (delta: -77.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 8.0 GB. [2021-06-13 22:48:28,897 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 200.3 MB. Free memory is still 181.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 19.67 ms. Allocated memory is still 200.3 MB. Free memory was 180.0 MB in the beginning and 178.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 20.20 ms. Allocated memory is still 200.3 MB. Free memory was 178.6 MB in the beginning and 177.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 274.33 ms. Allocated memory is still 200.3 MB. Free memory was 177.5 MB in the beginning and 163.6 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 14307.87 ms. Allocated memory was 200.3 MB in the beginning and 305.1 MB in the end (delta: 104.9 MB). Free memory was 163.1 MB in the beginning and 240.4 MB in the end (delta: -77.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 14247, positive: 12892, positive conditional: 12892, positive unconditional: 0, negative: 1355, negative conditional: 1355, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 13074, positive: 12892, positive conditional: 12892, positive unconditional: 0, negative: 182, negative conditional: 182, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 13074, positive: 12261, positive conditional: 0, positive unconditional: 12261, negative: 813, negative conditional: 0, negative unconditional: 813, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 217, positive: 210, positive conditional: 0, positive unconditional: 210, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 217, positive: 207, positive conditional: 0, positive unconditional: 207, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 58, positive: 9, positive conditional: 6, positive unconditional: 3, negative: 49, negative conditional: 42, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 231, positive: 86, positive conditional: 20, positive unconditional: 66, negative: 145, negative conditional: 102, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 13074, positive: 12051, positive conditional: 0, positive unconditional: 12051, negative: 806, negative conditional: 0, negative unconditional: 806, unknown: 217, unknown conditional: 0, unknown unconditional: 217] , Statistics on independence cache: Total cache size (in pairs): 265, Positive cache size: 216, Positive conditional cache size: 6, Positive unconditional cache size: 210, Negative cache size: 49, Negative conditional cache size: 42, Negative unconditional cache size: 7, SemanticConditionEliminator.Independence Queries: [ total: 2429, positive: 631, positive conditional: 631, positive unconditional: 0, negative: 1798, negative conditional: 792, negative unconditional: 1006, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2429, positive: 631, positive conditional: 631, positive unconditional: 0, negative: 1798, negative conditional: 792, negative unconditional: 1006, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 58, positive: 9, positive conditional: 6, positive unconditional: 3, negative: 49, negative conditional: 42, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 231, positive: 86, positive conditional: 20, positive unconditional: 66, negative: 145, negative conditional: 102, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2429, positive: 625, positive conditional: 625, positive unconditional: 0, negative: 1756, negative conditional: 750, negative unconditional: 1006, unknown: 48, unknown conditional: 48, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 265, Positive cache size: 216, Positive conditional cache size: 6, Positive unconditional cache size: 210, Negative cache size: 49, Negative conditional cache size: 42, Negative unconditional cache size: 7, Eliminated conditions: 1006, SemanticConditionEliminator.Independence Queries: [ total: 2429, positive: 631, positive conditional: 631, positive unconditional: 0, negative: 1798, negative conditional: 792, negative unconditional: 1006, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2429, positive: 631, positive conditional: 631, positive unconditional: 0, negative: 1798, negative conditional: 792, negative unconditional: 1006, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 58, positive: 9, positive conditional: 6, positive unconditional: 3, negative: 49, negative conditional: 42, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 231, positive: 86, positive conditional: 20, positive unconditional: 66, negative: 145, negative conditional: 102, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2429, positive: 625, positive conditional: 625, positive unconditional: 0, negative: 1756, negative conditional: 750, negative unconditional: 1006, unknown: 48, unknown conditional: 48, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 265, Positive cache size: 216, Positive conditional cache size: 6, Positive unconditional cache size: 210, Negative cache size: 49, Negative conditional cache size: 42, Negative unconditional cache size: 7, Eliminated conditions: 1006, SemanticConditionEliminator.Independence Queries: [ total: 2429, positive: 631, positive conditional: 631, positive unconditional: 0, negative: 1798, negative conditional: 792, negative unconditional: 1006, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2429, positive: 631, positive conditional: 631, positive unconditional: 0, negative: 1798, negative conditional: 792, negative unconditional: 1006, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 58, positive: 9, positive conditional: 6, positive unconditional: 3, negative: 49, negative conditional: 42, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 231, positive: 86, positive conditional: 20, positive unconditional: 66, negative: 145, negative conditional: 102, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2429, positive: 625, positive conditional: 625, positive unconditional: 0, negative: 1756, negative conditional: 750, negative unconditional: 1006, unknown: 48, unknown conditional: 48, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 265, Positive cache size: 216, Positive conditional cache size: 6, Positive unconditional cache size: 210, Negative cache size: 49, Negative conditional cache size: 42, Negative unconditional cache size: 7, Eliminated conditions: 1006, SemanticConditionEliminator.Independence Queries: [ total: 2429, positive: 631, positive conditional: 631, positive unconditional: 0, negative: 1798, negative conditional: 792, negative unconditional: 1006, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2429, positive: 631, positive conditional: 631, positive unconditional: 0, negative: 1798, negative conditional: 792, negative unconditional: 1006, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 58, positive: 9, positive conditional: 6, positive unconditional: 3, negative: 49, negative conditional: 42, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 231, positive: 86, positive conditional: 20, positive unconditional: 66, negative: 145, negative conditional: 102, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2429, positive: 625, positive conditional: 625, positive unconditional: 0, negative: 1756, negative conditional: 750, negative unconditional: 1006, unknown: 48, unknown conditional: 48, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 265, Positive cache size: 216, Positive conditional cache size: 6, Positive unconditional cache size: 210, Negative cache size: 49, Negative conditional cache size: 42, Negative unconditional cache size: 7, Eliminated conditions: 1006, SemanticConditionEliminator.Independence Queries: [ total: 2429, positive: 631, positive conditional: 631, positive unconditional: 0, negative: 1798, negative conditional: 792, negative unconditional: 1006, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2429, positive: 631, positive conditional: 631, positive unconditional: 0, negative: 1798, negative conditional: 792, negative unconditional: 1006, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 58, positive: 9, positive conditional: 6, positive unconditional: 3, negative: 49, negative conditional: 42, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 231, positive: 86, positive conditional: 20, positive unconditional: 66, negative: 145, negative conditional: 102, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2429, positive: 625, positive conditional: 625, positive unconditional: 0, negative: 1756, negative conditional: 750, negative unconditional: 1006, unknown: 48, unknown conditional: 48, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 265, Positive cache size: 216, Positive conditional cache size: 6, Positive unconditional cache size: 210, Negative cache size: 49, Negative conditional cache size: 42, Negative unconditional cache size: 7, Eliminated conditions: 1006, SemanticConditionEliminator.Independence Queries: [ total: 2429, positive: 631, positive conditional: 631, positive unconditional: 0, negative: 1798, negative conditional: 792, negative unconditional: 1006, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2429, positive: 631, positive conditional: 631, positive unconditional: 0, negative: 1798, negative conditional: 792, negative unconditional: 1006, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 58, positive: 9, positive conditional: 6, positive unconditional: 3, negative: 49, negative conditional: 42, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 231, positive: 86, positive conditional: 20, positive unconditional: 66, negative: 145, negative conditional: 102, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2429, positive: 625, positive conditional: 625, positive unconditional: 0, negative: 1756, negative conditional: 750, negative unconditional: 1006, unknown: 48, unknown conditional: 48, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 265, Positive cache size: 216, Positive conditional cache size: 6, Positive unconditional cache size: 210, Negative cache size: 49, Negative conditional cache size: 42, Negative unconditional cache size: 7, Eliminated conditions: 1006, SemanticConditionEliminator.Independence Queries: [ total: 2429, positive: 631, positive conditional: 631, positive unconditional: 0, negative: 1798, negative conditional: 792, negative unconditional: 1006, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2429, positive: 631, positive conditional: 631, positive unconditional: 0, negative: 1798, negative conditional: 792, negative unconditional: 1006, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 58, positive: 9, positive conditional: 6, positive unconditional: 3, negative: 49, negative conditional: 42, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 231, positive: 86, positive conditional: 20, positive unconditional: 66, negative: 145, negative conditional: 102, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2429, positive: 625, positive conditional: 625, positive unconditional: 0, negative: 1756, negative conditional: 750, negative unconditional: 1006, unknown: 48, unknown conditional: 48, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 265, Positive cache size: 216, Positive conditional cache size: 6, Positive unconditional cache size: 210, Negative cache size: 49, Negative conditional cache size: 42, Negative unconditional cache size: 7, Eliminated conditions: 1006, SemanticConditionEliminator.Independence Queries: [ total: 2429, positive: 631, positive conditional: 631, positive unconditional: 0, negative: 1798, negative conditional: 792, negative unconditional: 1006, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2429, positive: 631, positive conditional: 631, positive unconditional: 0, negative: 1798, negative conditional: 792, negative unconditional: 1006, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 58, positive: 9, positive conditional: 6, positive unconditional: 3, negative: 49, negative conditional: 42, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 231, positive: 86, positive conditional: 20, positive unconditional: 66, negative: 145, negative conditional: 102, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2429, positive: 625, positive conditional: 625, positive unconditional: 0, negative: 1756, negative conditional: 750, negative unconditional: 1006, unknown: 48, unknown conditional: 48, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 265, Positive cache size: 216, Positive conditional cache size: 6, Positive unconditional cache size: 210, Negative cache size: 49, Negative conditional cache size: 42, Negative unconditional cache size: 7, Eliminated conditions: 1006, SemanticConditionEliminator.Independence Queries: [ total: 2429, positive: 631, positive conditional: 631, positive unconditional: 0, negative: 1798, negative conditional: 792, negative unconditional: 1006, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2429, positive: 631, positive conditional: 631, positive unconditional: 0, negative: 1798, negative conditional: 792, negative unconditional: 1006, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 58, positive: 9, positive conditional: 6, positive unconditional: 3, negative: 49, negative conditional: 42, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 231, positive: 86, positive conditional: 20, positive unconditional: 66, negative: 145, negative conditional: 102, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2429, positive: 625, positive conditional: 625, positive unconditional: 0, negative: 1756, negative conditional: 750, negative unconditional: 1006, unknown: 48, unknown conditional: 48, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 265, Positive cache size: 216, Positive conditional cache size: 6, Positive unconditional cache size: 210, Negative cache size: 49, Negative conditional cache size: 42, Negative unconditional cache size: 7, Eliminated conditions: 1006 ], Maximal queried relation: 9, Independence queries for same thread: 1173 - PositiveResult [Line: 70]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 47 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14249.9ms, OverallIterations: 9, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.5ms, PartialOrderReductionTime: 7307.1ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 109, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 43.0ms SsaConstructionTime, 163.6ms SatisfiabilityAnalysisTime, 5401.8ms InterpolantComputationTime, 528 NumberOfCodeBlocks, 525 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 514 ConstructedInterpolants, 41 QuantifiedInterpolants, 4574 SizeOfPredicates, 29 NumberOfNonLiveVariables, 442 ConjunctsInSsa, 114 ConjunctsInUnsatCore, 14 InterpolantComputations, 4 PerfectInterpolantSequences, 204/347 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...