/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistent-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/nonblocking-cntr-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-10 06:13:38,628 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-10 06:13:38,630 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-10 06:13:38,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-10 06:13:38,691 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-10 06:13:38,692 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-10 06:13:38,692 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-10 06:13:38,693 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistent-NoLbe.epf [2021-07-10 06:13:38,719 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-10 06:13:38,720 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-10 06:13:38,720 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-10 06:13:38,720 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-10 06:13:38,722 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-10 06:13:38,722 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-10 06:13:38,722 INFO L138 SettingsManager]: * Use SBE=true [2021-07-10 06:13:38,722 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-10 06:13:38,722 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-10 06:13:38,731 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-10 06:13:38,732 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-10 06:13:38,732 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-10 06:13:38,732 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-10 06:13:38,732 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-10 06:13:38,732 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-10 06:13:38,732 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-10 06:13:38,732 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-10 06:13:38,732 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-10 06:13:38,733 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-10 06:13:38,733 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-10 06:13:38,733 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-10 06:13:38,733 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-10 06:13:38,733 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-10 06:13:38,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-10 06:13:38,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-10 06:13:38,733 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-10 06:13:38,733 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-10 06:13:38,733 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-10 06:13:38,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-10 06:13:38,734 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-10 06:13:38,734 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-10 06:13:38,734 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-10 06:13:38,734 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES [2021-07-10 06:13:38,734 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-10 06:13:38,972 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-10 06:13:38,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-10 06:13:38,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-10 06:13:38,986 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-10 06:13:38,987 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-10 06:13:38,987 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/nonblocking-cntr-alt.wvr.bpl [2021-07-10 06:13:38,987 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/nonblocking-cntr-alt.wvr.bpl' [2021-07-10 06:13:39,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-10 06:13:39,003 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-10 06:13:39,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-10 06:13:39,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-10 06:13:39,004 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-10 06:13:39,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 06:13:39" (1/1) ... [2021-07-10 06:13:39,016 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 06:13:39" (1/1) ... [2021-07-10 06:13:39,020 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-10 06:13:39,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-10 06:13:39,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-10 06:13:39,021 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-10 06:13:39,026 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 06:13:39" (1/1) ... [2021-07-10 06:13:39,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 06:13:39" (1/1) ... [2021-07-10 06:13:39,026 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 06:13:39" (1/1) ... [2021-07-10 06:13:39,026 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 06:13:39" (1/1) ... [2021-07-10 06:13:39,028 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 06:13:39" (1/1) ... [2021-07-10 06:13:39,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 06:13:39" (1/1) ... [2021-07-10 06:13:39,030 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 06:13:39" (1/1) ... [2021-07-10 06:13:39,030 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-10 06:13:39,031 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-10 06:13:39,031 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-10 06:13:39,031 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-10 06:13:39,032 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 06:13:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-10 06:13:39,077 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-10 06:13:39,077 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-10 06:13:39,077 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-10 06:13:39,077 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-10 06:13:39,077 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-10 06:13:39,077 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-10 06:13:39,077 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-10 06:13:39,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-10 06:13:39,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-10 06:13:39,078 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-10 06:13:39,187 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-10 06:13:39,187 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-10 06:13:39,188 INFO L202 PluginConnector]: Adding new model nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 06:13:39 BoogieIcfgContainer [2021-07-10 06:13:39,188 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-10 06:13:39,189 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-10 06:13:39,190 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-10 06:13:39,191 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-10 06:13:39,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 06:13:39" (1/2) ... [2021-07-10 06:13:39,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c1e639 and model type nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 06:13:39, skipping insertion in model container [2021-07-10 06:13:39,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 06:13:39" (2/2) ... [2021-07-10 06:13:39,193 INFO L111 eAbstractionObserver]: Analyzing ICFG nonblocking-cntr-alt.wvr.bpl [2021-07-10 06:13:39,196 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-10 06:13:39,196 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-10 06:13:39,196 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-10 06:13:39,197 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-10 06:13:39,215 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-07-10 06:13:39,229 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-10 06:13:39,263 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-10 06:13:39,263 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-10 06:13:39,264 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-10 06:13:39,264 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-10 06:13:39,264 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-10 06:13:39,264 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-10 06:13:39,264 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-10 06:13:39,264 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-10 06:13:39,358 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 06:13:39,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 06:13:39,361 INFO L82 PathProgramCache]: Analyzing trace with hash -1060894973, now seen corresponding path program 1 times [2021-07-10 06:13:39,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 06:13:39,367 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045745685] [2021-07-10 06:13:39,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 06:13:39,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:13:39,707 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:13:39,707 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 06:13:39,707 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045745685] [2021-07-10 06:13:39,708 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045745685] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:13:39,708 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078249054] [2021-07-10 06:13:39,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:13:39,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:13:39,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 15 conjunts are in the unsatisfiable core [2021-07-10 06:13:39,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 06:13:40,041 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:13:40,041 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1078249054] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:13:40,041 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 06:13:40,041 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2021-07-10 06:13:40,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102297162] [2021-07-10 06:13:40,045 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-10 06:13:40,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 06:13:40,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-10 06:13:40,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2021-07-10 06:13:40,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:13:40,054 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 06:13:40,056 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 17 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 06:13:40,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:13:40,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:13:40,417 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-07-10 06:13:40,417 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 06:13:40,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 06:13:40,418 INFO L82 PathProgramCache]: Analyzing trace with hash 558452029, now seen corresponding path program 2 times [2021-07-10 06:13:40,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 06:13:40,418 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3051692] [2021-07-10 06:13:40,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 06:13:40,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:13:40,586 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:13:40,587 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 06:13:40,587 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3051692] [2021-07-10 06:13:40,587 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3051692] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:13:40,587 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650948556] [2021-07-10 06:13:40,587 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:13:40,611 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 06:13:40,611 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 06:13:40,612 WARN L261 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 28 conjunts are in the unsatisfiable core [2021-07-10 06:13:40,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 06:13:41,000 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:13:41,000 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650948556] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:13:41,000 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 06:13:41,000 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-07-10 06:13:41,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973256826] [2021-07-10 06:13:41,001 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-10 06:13:41,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 06:13:41,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-10 06:13:41,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=506, Unknown=0, NotChecked=0, Total=600 [2021-07-10 06:13:41,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:13:41,002 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 06:13:41,002 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 1.92) internal successors, (48), 24 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 06:13:41,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:13:41,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:13:41,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:13:41,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:13:41,560 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:13:41,560 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 06:13:41,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 06:13:41,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1828953865, now seen corresponding path program 3 times [2021-07-10 06:13:41,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 06:13:41,561 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116642855] [2021-07-10 06:13:41,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 06:13:41,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:13:41,958 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:13:41,959 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 06:13:41,959 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116642855] [2021-07-10 06:13:41,959 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116642855] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:13:41,959 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637601045] [2021-07-10 06:13:41,959 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:13:41,993 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-07-10 06:13:41,994 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 06:13:41,994 WARN L261 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 41 conjunts are in the unsatisfiable core [2021-07-10 06:13:41,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 06:13:42,647 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:13:42,648 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1637601045] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:13:42,648 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 06:13:42,648 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 29 [2021-07-10 06:13:42,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498084919] [2021-07-10 06:13:42,649 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-07-10 06:13:42,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 06:13:42,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-07-10 06:13:42,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=772, Unknown=0, NotChecked=0, Total=870 [2021-07-10 06:13:42,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:13:42,651 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 06:13:42,651 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 1.9666666666666666) internal successors, (59), 29 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 06:13:42,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:13:42,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:13:42,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:13:43,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:13:43,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:13:43,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:13:43,413 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:13:43,413 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 06:13:43,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 06:13:43,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1366505525, now seen corresponding path program 4 times [2021-07-10 06:13:43,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 06:13:43,414 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477588803] [2021-07-10 06:13:43,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 06:13:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:13:43,677 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 25 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:13:43,677 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 06:13:43,677 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477588803] [2021-07-10 06:13:43,677 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477588803] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:13:43,677 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1060818773] [2021-07-10 06:13:43,677 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:13:43,706 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-10 06:13:43,707 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 06:13:43,716 WARN L261 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 45 conjunts are in the unsatisfiable core [2021-07-10 06:13:43,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 06:13:44,156 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:13:44,157 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1060818773] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:13:44,157 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 06:13:44,157 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2021-07-10 06:13:44,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786545656] [2021-07-10 06:13:44,157 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-07-10 06:13:44,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 06:13:44,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-07-10 06:13:44,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=902, Unknown=0, NotChecked=0, Total=1056 [2021-07-10 06:13:44,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:13:44,158 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 06:13:44,158 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 1.9393939393939394) internal successors, (64), 32 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 06:13:44,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:13:44,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:13:44,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:13:44,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:13:45,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:13:45,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:13:45,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:13:45,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:13:45,360 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:13:45,361 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 06:13:45,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 06:13:45,361 INFO L82 PathProgramCache]: Analyzing trace with hash 821722843, now seen corresponding path program 5 times [2021-07-10 06:13:45,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 06:13:45,361 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402927908] [2021-07-10 06:13:45,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 06:13:45,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:13:45,859 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 40 proven. 202 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:13:45,859 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 06:13:45,859 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402927908] [2021-07-10 06:13:45,860 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402927908] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:13:45,860 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75862887] [2021-07-10 06:13:45,860 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:13:45,899 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-07-10 06:13:45,899 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 06:13:45,900 WARN L261 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 97 conjunts are in the unsatisfiable core [2021-07-10 06:13:45,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 06:13:46,874 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:13:46,874 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [75862887] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:13:46,874 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 06:13:46,875 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 30] total 54 [2021-07-10 06:13:46,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880709120] [2021-07-10 06:13:46,876 INFO L462 AbstractCegarLoop]: Interpolant automaton has 55 states [2021-07-10 06:13:46,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 06:13:46,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-07-10 06:13:46,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=342, Invalid=2628, Unknown=0, NotChecked=0, Total=2970 [2021-07-10 06:13:46,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:13:46,878 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 06:13:46,879 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 55 states, 55 states have (on average 2.109090909090909) internal successors, (116), 54 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 06:13:46,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:13:46,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:13:46,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:13:46,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:13:46,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:13:48,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:13:48,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:13:48,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:13:48,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:13:48,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:13:49,139 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:13:49,140 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 06:13:49,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 06:13:49,140 INFO L82 PathProgramCache]: Analyzing trace with hash 235835283, now seen corresponding path program 6 times [2021-07-10 06:13:49,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 06:13:49,140 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030613168] [2021-07-10 06:13:49,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 06:13:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:13:49,674 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 54 proven. 284 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:13:49,674 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 06:13:49,674 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030613168] [2021-07-10 06:13:49,674 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030613168] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:13:49,674 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329412694] [2021-07-10 06:13:49,674 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:13:49,716 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2021-07-10 06:13:49,717 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 06:13:49,718 WARN L261 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 108 conjunts are in the unsatisfiable core [2021-07-10 06:13:49,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 06:13:51,055 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 0 proven. 338 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:13:51,055 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [329412694] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:13:51,055 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 06:13:51,055 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 34] total 61 [2021-07-10 06:13:51,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413823827] [2021-07-10 06:13:51,056 INFO L462 AbstractCegarLoop]: Interpolant automaton has 62 states [2021-07-10 06:13:51,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 06:13:51,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2021-07-10 06:13:51,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=408, Invalid=3374, Unknown=0, NotChecked=0, Total=3782 [2021-07-10 06:13:51,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:13:51,058 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 06:13:51,058 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 62 states, 62 states have (on average 2.129032258064516) internal successors, (132), 61 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 06:13:51,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:13:51,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:13:51,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:13:51,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:13:51,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:13:51,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:13:53,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:13:53,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:13:53,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:13:53,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:13:53,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:13:53,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-10 06:13:53,830 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:13:53,831 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 06:13:53,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 06:13:53,831 INFO L82 PathProgramCache]: Analyzing trace with hash 552892491, now seen corresponding path program 7 times [2021-07-10 06:13:53,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 06:13:53,831 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73122324] [2021-07-10 06:13:53,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 06:13:53,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:13:54,400 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 70 proven. 380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:13:54,400 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 06:13:54,401 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73122324] [2021-07-10 06:13:54,401 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73122324] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:13:54,401 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024107160] [2021-07-10 06:13:54,401 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:13:54,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:13:54,462 WARN L261 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 123 conjunts are in the unsatisfiable core [2021-07-10 06:13:54,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 06:13:56,137 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:13:56,137 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024107160] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:13:56,137 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 06:13:56,137 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 38] total 68 [2021-07-10 06:13:56,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7170121] [2021-07-10 06:13:56,138 INFO L462 AbstractCegarLoop]: Interpolant automaton has 69 states [2021-07-10 06:13:56,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 06:13:56,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2021-07-10 06:13:56,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=494, Invalid=4198, Unknown=0, NotChecked=0, Total=4692 [2021-07-10 06:13:56,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:13:56,139 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 06:13:56,139 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 69 states, 69 states have (on average 2.1449275362318843) internal successors, (148), 68 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 06:13:56,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:13:56,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:13:56,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:13:56,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:13:56,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:13:56,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-07-10 06:13:56,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:13:59,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:13:59,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:13:59,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:13:59,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:13:59,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:13:59,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-10 06:13:59,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 06:13:59,300 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-07-10 06:13:59,300 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 06:13:59,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 06:13:59,301 INFO L82 PathProgramCache]: Analyzing trace with hash -1845479165, now seen corresponding path program 8 times [2021-07-10 06:13:59,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 06:13:59,301 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048574591] [2021-07-10 06:13:59,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 06:13:59,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:14:00,021 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 88 proven. 490 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:14:00,021 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 06:14:00,021 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048574591] [2021-07-10 06:14:00,021 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048574591] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:14:00,021 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813701655] [2021-07-10 06:14:00,022 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:14:00,066 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 06:14:00,067 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 06:14:00,068 WARN L261 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 145 conjunts are in the unsatisfiable core [2021-07-10 06:14:00,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 06:14:01,665 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 0 proven. 578 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:14:01,665 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813701655] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:14:01,665 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 06:14:01,665 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 42] total 75 [2021-07-10 06:14:01,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586278981] [2021-07-10 06:14:01,666 INFO L462 AbstractCegarLoop]: Interpolant automaton has 76 states [2021-07-10 06:14:01,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 06:14:01,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2021-07-10 06:14:01,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=620, Invalid=5080, Unknown=0, NotChecked=0, Total=5700 [2021-07-10 06:14:01,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:14:01,667 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 06:14:01,667 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 76 states, 76 states have (on average 2.1578947368421053) internal successors, (164), 75 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 06:14:01,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:14:01,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:14:01,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:14:01,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:14:01,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:14:01,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-07-10 06:14:01,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-10 06:14:01,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:14:05,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:14:05,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:14:05,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:14:05,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:14:05,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:14:05,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-10 06:14:05,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 06:14:05,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-10 06:14:05,245 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:14:05,245 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 06:14:05,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 06:14:05,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1903832645, now seen corresponding path program 9 times [2021-07-10 06:14:05,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 06:14:05,246 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140326343] [2021-07-10 06:14:05,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 06:14:05,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:14:06,024 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 108 proven. 614 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:14:06,024 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 06:14:06,024 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140326343] [2021-07-10 06:14:06,024 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140326343] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:14:06,024 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992117207] [2021-07-10 06:14:06,025 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:14:06,081 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2021-07-10 06:14:06,082 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 06:14:06,084 WARN L261 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 161 conjunts are in the unsatisfiable core [2021-07-10 06:14:06,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 06:14:07,898 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 0 proven. 722 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:14:07,899 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [992117207] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:14:07,899 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 06:14:07,899 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 46] total 82 [2021-07-10 06:14:07,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341636404] [2021-07-10 06:14:07,899 INFO L462 AbstractCegarLoop]: Interpolant automaton has 83 states [2021-07-10 06:14:07,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 06:14:07,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2021-07-10 06:14:07,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=730, Invalid=6076, Unknown=0, NotChecked=0, Total=6806 [2021-07-10 06:14:07,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:14:07,901 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 06:14:07,901 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 83 states, 83 states have (on average 2.1686746987951806) internal successors, (180), 82 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 06:14:07,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:14:07,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:14:07,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:14:07,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:14:07,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:14:07,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-07-10 06:14:07,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-10 06:14:07,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-10 06:14:07,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:14:12,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:14:12,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:14:12,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:14:12,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:14:12,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:14:12,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-10 06:14:12,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 06:14:12,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-10 06:14:12,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-07-10 06:14:12,276 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:14:12,276 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 06:14:12,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 06:14:12,276 INFO L82 PathProgramCache]: Analyzing trace with hash 148456051, now seen corresponding path program 10 times [2021-07-10 06:14:12,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 06:14:12,276 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34954280] [2021-07-10 06:14:12,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 06:14:12,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:14:13,553 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 130 proven. 752 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:14:13,553 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 06:14:13,553 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34954280] [2021-07-10 06:14:13,553 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34954280] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:14:13,553 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952516843] [2021-07-10 06:14:13,553 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:14:13,607 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-10 06:14:13,608 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 06:14:13,609 WARN L261 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 168 conjunts are in the unsatisfiable core [2021-07-10 06:14:13,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 06:14:16,641 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 0 proven. 882 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:14:16,641 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952516843] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:14:16,641 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 06:14:16,641 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 50] total 89 [2021-07-10 06:14:16,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011269844] [2021-07-10 06:14:16,642 INFO L462 AbstractCegarLoop]: Interpolant automaton has 90 states [2021-07-10 06:14:16,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 06:14:16,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2021-07-10 06:14:16,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=802, Invalid=7208, Unknown=0, NotChecked=0, Total=8010 [2021-07-10 06:14:16,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:14:16,644 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 06:14:16,644 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 90 states, 90 states have (on average 2.1777777777777776) internal successors, (196), 89 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 06:14:16,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:14:16,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:14:16,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:14:16,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:14:16,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:14:16,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-07-10 06:14:16,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-10 06:14:16,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-10 06:14:16,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2021-07-10 06:14:16,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:14:18,798 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-07-10 06:14:19,028 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-07-10 06:14:21,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:14:21,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:14:21,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:14:21,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:14:21,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:14:21,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-10 06:14:21,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 06:14:21,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-10 06:14:21,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-07-10 06:14:21,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-07-10 06:14:22,176 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2021-07-10 06:14:22,177 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 06:14:22,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 06:14:22,177 INFO L82 PathProgramCache]: Analyzing trace with hash 2018413355, now seen corresponding path program 11 times [2021-07-10 06:14:22,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 06:14:22,177 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825186624] [2021-07-10 06:14:22,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 06:14:22,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:14:23,108 INFO L134 CoverageAnalysis]: Checked inductivity of 1058 backedges. 154 proven. 904 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:14:23,109 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 06:14:23,109 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825186624] [2021-07-10 06:14:23,109 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825186624] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:14:23,109 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630726952] [2021-07-10 06:14:23,109 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:14:23,177 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2021-07-10 06:14:23,178 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 06:14:23,180 WARN L261 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 193 conjunts are in the unsatisfiable core [2021-07-10 06:14:23,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 06:14:25,658 INFO L134 CoverageAnalysis]: Checked inductivity of 1058 backedges. 0 proven. 1058 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:14:25,659 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [630726952] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:14:25,659 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 06:14:25,659 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 54] total 96 [2021-07-10 06:14:25,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116120690] [2021-07-10 06:14:25,659 INFO L462 AbstractCegarLoop]: Interpolant automaton has 97 states [2021-07-10 06:14:25,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 06:14:25,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2021-07-10 06:14:25,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=977, Invalid=8335, Unknown=0, NotChecked=0, Total=9312 [2021-07-10 06:14:25,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:14:25,661 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 06:14:25,661 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 97 states, 97 states have (on average 2.185567010309278) internal successors, (212), 96 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 06:14:25,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:14:25,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:14:25,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:14:25,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:14:25,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:14:25,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-07-10 06:14:25,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-10 06:14:25,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-10 06:14:25,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2021-07-10 06:14:25,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-07-10 06:14:25,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:14:27,491 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-07-10 06:14:27,729 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-07-10 06:14:27,923 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-07-10 06:14:30,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:14:30,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:14:30,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:14:30,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:14:30,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:14:30,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-10 06:14:30,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 06:14:30,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-10 06:14:30,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-07-10 06:14:30,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-07-10 06:14:30,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-07-10 06:14:30,938 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:14:30,939 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 06:14:30,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 06:14:30,939 INFO L82 PathProgramCache]: Analyzing trace with hash -1724273693, now seen corresponding path program 12 times [2021-07-10 06:14:30,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 06:14:30,939 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138477909] [2021-07-10 06:14:30,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 06:14:30,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:14:31,954 INFO L134 CoverageAnalysis]: Checked inductivity of 1250 backedges. 180 proven. 1070 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:14:31,955 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 06:14:31,955 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138477909] [2021-07-10 06:14:31,955 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138477909] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:14:31,955 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925586730] [2021-07-10 06:14:31,955 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:14:32,026 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2021-07-10 06:14:32,026 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 06:14:32,029 WARN L261 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 206 conjunts are in the unsatisfiable core [2021-07-10 06:14:32,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 06:14:35,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1250 backedges. 0 proven. 1250 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:14:35,096 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925586730] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:14:35,096 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 06:14:35,096 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 58] total 103 [2021-07-10 06:14:35,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822705957] [2021-07-10 06:14:35,097 INFO L462 AbstractCegarLoop]: Interpolant automaton has 104 states [2021-07-10 06:14:35,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 06:14:35,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2021-07-10 06:14:35,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1104, Invalid=9608, Unknown=0, NotChecked=0, Total=10712 [2021-07-10 06:14:35,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:14:35,099 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 06:14:35,100 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 104 states, 104 states have (on average 2.1923076923076925) internal successors, (228), 103 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 06:14:35,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:14:35,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:14:35,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:14:35,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:14:35,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:14:35,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-07-10 06:14:35,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-10 06:14:35,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-10 06:14:35,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2021-07-10 06:14:35,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-07-10 06:14:35,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2021-07-10 06:14:35,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:14:37,833 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2021-07-10 06:14:38,123 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2021-07-10 06:14:38,352 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2021-07-10 06:14:38,568 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2021-07-10 06:14:41,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:14:41,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:14:41,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:14:41,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:14:41,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:14:41,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-10 06:14:41,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 06:14:41,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-10 06:14:41,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-07-10 06:14:41,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-07-10 06:14:41,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-07-10 06:14:41,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-07-10 06:14:42,139 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2021-07-10 06:14:42,139 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 06:14:42,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 06:14:42,140 INFO L82 PathProgramCache]: Analyzing trace with hash 753837211, now seen corresponding path program 13 times [2021-07-10 06:14:42,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 06:14:42,140 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268167889] [2021-07-10 06:14:42,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 06:14:42,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:14:43,515 INFO L134 CoverageAnalysis]: Checked inductivity of 1458 backedges. 208 proven. 1250 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:14:43,516 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 06:14:43,516 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268167889] [2021-07-10 06:14:43,516 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268167889] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:14:43,516 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569506753] [2021-07-10 06:14:43,516 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:14:43,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:14:43,589 WARN L261 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 213 conjunts are in the unsatisfiable core [2021-07-10 06:14:43,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 06:14:47,335 INFO L134 CoverageAnalysis]: Checked inductivity of 1458 backedges. 0 proven. 1458 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:14:47,335 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569506753] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:14:47,335 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 06:14:47,335 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 62] total 110 [2021-07-10 06:14:47,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043717706] [2021-07-10 06:14:47,336 INFO L462 AbstractCegarLoop]: Interpolant automaton has 111 states [2021-07-10 06:14:47,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 06:14:47,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2021-07-10 06:14:47,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1178, Invalid=11032, Unknown=0, NotChecked=0, Total=12210 [2021-07-10 06:14:47,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:14:47,338 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 06:14:47,338 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 111 states, 111 states have (on average 2.1981981981981984) internal successors, (244), 110 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 06:14:47,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:14:47,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:14:47,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:14:47,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:14:47,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:14:47,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-07-10 06:14:47,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-10 06:14:47,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-10 06:14:47,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2021-07-10 06:14:47,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-07-10 06:14:47,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2021-07-10 06:14:47,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-07-10 06:14:47,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:14:49,925 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 104 [2021-07-10 06:14:50,217 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2021-07-10 06:14:50,472 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2021-07-10 06:14:50,701 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2021-07-10 06:14:54,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:14:54,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:14:54,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:14:54,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:14:54,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:14:54,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-10 06:14:54,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 06:14:54,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-10 06:14:54,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-07-10 06:14:54,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-07-10 06:14:54,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-07-10 06:14:54,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-07-10 06:14:54,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-07-10 06:14:54,949 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:14:54,950 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 06:14:54,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 06:14:54,950 INFO L82 PathProgramCache]: Analyzing trace with hash -1178503853, now seen corresponding path program 14 times [2021-07-10 06:14:54,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 06:14:54,950 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642640316] [2021-07-10 06:14:54,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 06:14:54,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:14:56,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1682 backedges. 238 proven. 1444 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:14:56,218 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 06:14:56,218 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642640316] [2021-07-10 06:14:56,218 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642640316] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:14:56,218 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691687900] [2021-07-10 06:14:56,218 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 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:14:56,302 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 06:14:56,302 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 06:14:56,305 WARN L261 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 241 conjunts are in the unsatisfiable core [2021-07-10 06:14:56,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 06:14:59,777 INFO L134 CoverageAnalysis]: Checked inductivity of 1682 backedges. 0 proven. 1682 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:14:59,777 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691687900] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:14:59,777 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 06:14:59,777 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 66] total 117 [2021-07-10 06:14:59,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67804387] [2021-07-10 06:14:59,778 INFO L462 AbstractCegarLoop]: Interpolant automaton has 118 states [2021-07-10 06:14:59,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 06:14:59,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 118 interpolants. [2021-07-10 06:14:59,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1415, Invalid=12391, Unknown=0, NotChecked=0, Total=13806 [2021-07-10 06:14:59,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:14:59,780 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 06:14:59,781 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 118 states, 118 states have (on average 2.2033898305084745) internal successors, (260), 117 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 06:14:59,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:14:59,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:14:59,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:14:59,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:14:59,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:14:59,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-07-10 06:14:59,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-10 06:14:59,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-10 06:14:59,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2021-07-10 06:14:59,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-07-10 06:14:59,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2021-07-10 06:14:59,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-07-10 06:14:59,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-07-10 06:14:59,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:15:02,238 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2021-07-10 06:15:02,551 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 104 [2021-07-10 06:15:02,824 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2021-07-10 06:15:03,066 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-07-10 06:15:03,295 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-07-10 06:15:03,535 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-07-10 06:15:07,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:15:07,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:15:07,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:15:07,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:15:07,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:15:07,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-10 06:15:07,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 06:15:07,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-10 06:15:07,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-07-10 06:15:07,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-07-10 06:15:07,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-07-10 06:15:07,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-07-10 06:15:07,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-07-10 06:15:07,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-07-10 06:15:07,477 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable116 [2021-07-10 06:15:07,477 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 06:15:07,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 06:15:07,478 INFO L82 PathProgramCache]: Analyzing trace with hash 1258692107, now seen corresponding path program 15 times [2021-07-10 06:15:07,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 06:15:07,478 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16767990] [2021-07-10 06:15:07,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 06:15:07,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:15:08,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1922 backedges. 270 proven. 1652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:15:08,799 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 06:15:08,799 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16767990] [2021-07-10 06:15:08,799 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16767990] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:15:08,799 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030094624] [2021-07-10 06:15:08,799 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 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:15:08,884 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 18 check-sat command(s) [2021-07-10 06:15:08,884 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 06:15:08,887 WARN L261 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 227 conjunts are in the unsatisfiable core [2021-07-10 06:15:08,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 06:15:12,670 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2021-07-10 06:15:12,772 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 40 [2021-07-10 06:15:12,969 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2021-07-10 06:15:13,288 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 40 [2021-07-10 06:15:13,446 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2021-07-10 06:15:13,659 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-10 06:15:15,812 INFO L134 CoverageAnalysis]: Checked inductivity of 1922 backedges. 0 proven. 1922 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:15:15,813 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1030094624] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:15:15,813 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 06:15:15,813 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 70] total 124 [2021-07-10 06:15:15,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530726594] [2021-07-10 06:15:15,813 INFO L462 AbstractCegarLoop]: Interpolant automaton has 125 states [2021-07-10 06:15:15,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 06:15:15,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 125 interpolants. [2021-07-10 06:15:15,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1171, Invalid=14329, Unknown=0, NotChecked=0, Total=15500 [2021-07-10 06:15:15,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:15:15,815 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 06:15:15,815 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 125 states, 125 states have (on average 2.208) internal successors, (276), 124 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 06:15:15,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:15:15,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:15:15,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:15:15,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:15:15,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:15:15,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-07-10 06:15:15,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-10 06:15:15,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-10 06:15:15,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2021-07-10 06:15:15,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-07-10 06:15:15,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2021-07-10 06:15:15,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-07-10 06:15:15,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-07-10 06:15:15,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2021-07-10 06:15:15,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:15:19,226 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 118 [2021-07-10 06:15:19,582 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2021-07-10 06:15:19,887 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 104 [2021-07-10 06:15:20,177 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2021-07-10 06:15:20,450 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-07-10 06:15:20,714 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-07-10 06:15:26,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:15:26,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:15:26,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:15:26,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:15:26,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:15:26,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-10 06:15:26,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 06:15:26,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-10 06:15:26,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-07-10 06:15:26,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-07-10 06:15:26,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-07-10 06:15:26,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-07-10 06:15:26,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-07-10 06:15:26,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-07-10 06:15:26,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2021-07-10 06:15:26,338 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:15:26,339 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 06:15:26,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 06:15:26,339 INFO L82 PathProgramCache]: Analyzing trace with hash 823172803, now seen corresponding path program 16 times [2021-07-10 06:15:26,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 06:15:26,339 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45896741] [2021-07-10 06:15:26,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 06:15:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:15:27,792 INFO L134 CoverageAnalysis]: Checked inductivity of 2178 backedges. 304 proven. 1874 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:15:27,792 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 06:15:27,792 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45896741] [2021-07-10 06:15:27,792 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45896741] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:15:27,792 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577654135] [2021-07-10 06:15:27,792 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:15:27,857 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-10 06:15:27,857 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 06:15:27,860 WARN L261 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 258 conjunts are in the unsatisfiable core [2021-07-10 06:15:27,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 06:15:34,066 INFO L134 CoverageAnalysis]: Checked inductivity of 2178 backedges. 0 proven. 2178 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:15:34,066 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [577654135] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:15:34,066 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 06:15:34,066 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 74] total 131 [2021-07-10 06:15:34,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573765810] [2021-07-10 06:15:34,067 INFO L462 AbstractCegarLoop]: Interpolant automaton has 132 states [2021-07-10 06:15:34,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 06:15:34,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 132 interpolants. [2021-07-10 06:15:34,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1630, Invalid=15662, Unknown=0, NotChecked=0, Total=17292 [2021-07-10 06:15:34,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:15:34,068 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 06:15:34,068 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 132 states, 132 states have (on average 2.212121212121212) internal successors, (292), 131 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 06:15:34,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:15:34,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:15:34,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:15:34,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:15:34,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:15:34,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-07-10 06:15:34,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-10 06:15:34,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-10 06:15:34,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2021-07-10 06:15:34,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-07-10 06:15:34,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2021-07-10 06:15:34,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-07-10 06:15:34,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-07-10 06:15:34,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2021-07-10 06:15:34,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 114 states. [2021-07-10 06:15:34,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:15:37,557 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 125 [2021-07-10 06:15:37,937 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 118 [2021-07-10 06:15:38,264 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2021-07-10 06:15:38,580 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 104 [2021-07-10 06:15:38,881 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2021-07-10 06:15:39,155 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-07-10 06:15:39,406 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-07-10 06:15:44,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:15:44,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:15:44,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:15:44,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:15:44,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:15:44,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-10 06:15:44,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 06:15:44,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-10 06:15:44,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-07-10 06:15:44,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-07-10 06:15:44,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-07-10 06:15:44,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-07-10 06:15:44,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-07-10 06:15:44,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-07-10 06:15:44,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2021-07-10 06:15:44,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2021-07-10 06:15:45,065 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:15:45,065 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 06:15:45,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 06:15:45,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1053493381, now seen corresponding path program 17 times [2021-07-10 06:15:45,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 06:15:45,066 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629024020] [2021-07-10 06:15:45,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 06:15:45,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:15:46,701 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 340 proven. 2110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:15:46,701 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 06:15:46,701 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629024020] [2021-07-10 06:15:46,701 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629024020] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:15:46,701 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886884289] [2021-07-10 06:15:46,701 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 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:15:46,792 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 20 check-sat command(s) [2021-07-10 06:15:46,792 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 06:15:46,796 WARN L261 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 289 conjunts are in the unsatisfiable core [2021-07-10 06:15:46,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 06:15:51,563 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 0 proven. 2450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:15:51,564 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886884289] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:15:51,564 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 06:15:51,564 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 78] total 138 [2021-07-10 06:15:51,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630724738] [2021-07-10 06:15:51,564 INFO L462 AbstractCegarLoop]: Interpolant automaton has 139 states [2021-07-10 06:15:51,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 06:15:51,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 139 interpolants. [2021-07-10 06:15:51,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1934, Invalid=17248, Unknown=0, NotChecked=0, Total=19182 [2021-07-10 06:15:51,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:15:51,566 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 06:15:51,566 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 139 states, 139 states have (on average 2.2158273381294964) internal successors, (308), 138 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 06:15:51,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:15:51,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:15:51,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:15:51,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:15:51,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:15:51,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-07-10 06:15:51,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-10 06:15:51,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-10 06:15:51,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2021-07-10 06:15:51,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-07-10 06:15:51,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2021-07-10 06:15:51,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-07-10 06:15:51,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-07-10 06:15:51,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2021-07-10 06:15:51,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 114 states. [2021-07-10 06:15:51,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 120 states. [2021-07-10 06:15:51,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:15:54,768 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 132 [2021-07-10 06:15:55,161 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 125 [2021-07-10 06:15:55,513 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 118 [2021-07-10 06:15:55,833 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2021-07-10 06:15:56,131 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 104 [2021-07-10 06:15:56,407 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2021-07-10 06:15:56,666 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-07-10 06:15:56,917 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-07-10 06:16:01,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:16:01,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:16:01,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:16:01,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:16:01,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:16:01,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-10 06:16:01,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 06:16:01,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-10 06:16:01,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-07-10 06:16:01,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-07-10 06:16:01,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-07-10 06:16:01,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-07-10 06:16:01,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-07-10 06:16:01,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-07-10 06:16:01,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2021-07-10 06:16:01,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2021-07-10 06:16:01,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2021-07-10 06:16:02,145 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:16:02,145 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 06:16:02,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 06:16:02,146 INFO L82 PathProgramCache]: Analyzing trace with hash 365373491, now seen corresponding path program 18 times [2021-07-10 06:16:02,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 06:16:02,146 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320982686] [2021-07-10 06:16:02,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 06:16:02,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:16:03,900 INFO L134 CoverageAnalysis]: Checked inductivity of 2738 backedges. 378 proven. 2360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:16:03,901 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 06:16:03,901 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320982686] [2021-07-10 06:16:03,901 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320982686] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:16:03,901 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1414723904] [2021-07-10 06:16:03,901 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 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:16:04,020 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s) [2021-07-10 06:16:04,020 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 06:16:04,024 WARN L261 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 305 conjunts are in the unsatisfiable core [2021-07-10 06:16:04,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 06:16:09,261 INFO L134 CoverageAnalysis]: Checked inductivity of 2738 backedges. 0 proven. 2738 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:16:09,261 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1414723904] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:16:09,261 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 06:16:09,261 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 82] total 145 [2021-07-10 06:16:09,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701295252] [2021-07-10 06:16:09,262 INFO L462 AbstractCegarLoop]: Interpolant automaton has 146 states [2021-07-10 06:16:09,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 06:16:09,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 146 interpolants. [2021-07-10 06:16:09,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2123, Invalid=19047, Unknown=0, NotChecked=0, Total=21170 [2021-07-10 06:16:09,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:16:09,263 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 06:16:09,264 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 146 states, 146 states have (on average 2.219178082191781) internal successors, (324), 145 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 06:16:09,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:16:09,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:16:09,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:16:09,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:16:09,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:16:09,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-07-10 06:16:09,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-10 06:16:09,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-10 06:16:09,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2021-07-10 06:16:09,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-07-10 06:16:09,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2021-07-10 06:16:09,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-07-10 06:16:09,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-07-10 06:16:09,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2021-07-10 06:16:09,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 114 states. [2021-07-10 06:16:09,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 120 states. [2021-07-10 06:16:09,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2021-07-10 06:16:09,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:16:12,953 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 139 [2021-07-10 06:16:13,389 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 132 [2021-07-10 06:16:13,758 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 125 [2021-07-10 06:16:14,113 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 118 [2021-07-10 06:16:14,435 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 111 [2021-07-10 06:16:14,735 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 104 [2021-07-10 06:16:15,027 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2021-07-10 06:16:15,329 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2021-07-10 06:16:15,589 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2021-07-10 06:16:15,827 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2021-07-10 06:16:21,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:16:21,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:16:21,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:16:21,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:16:21,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:16:21,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-10 06:16:21,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 06:16:21,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-10 06:16:21,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-07-10 06:16:21,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-07-10 06:16:21,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-07-10 06:16:21,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-07-10 06:16:21,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-07-10 06:16:21,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-07-10 06:16:21,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2021-07-10 06:16:21,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2021-07-10 06:16:21,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2021-07-10 06:16:21,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2021-07-10 06:16:21,755 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:16:21,755 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 06:16:21,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 06:16:21,755 INFO L82 PathProgramCache]: Analyzing trace with hash -837078805, now seen corresponding path program 19 times [2021-07-10 06:16:21,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 06:16:21,755 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549260183] [2021-07-10 06:16:21,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 06:16:21,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:16:23,985 INFO L134 CoverageAnalysis]: Checked inductivity of 3042 backedges. 418 proven. 2624 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:16:23,985 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 06:16:23,985 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549260183] [2021-07-10 06:16:23,985 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549260183] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:16:23,985 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054155555] [2021-07-10 06:16:23,985 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 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:16:24,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:16:24,079 WARN L261 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 303 conjunts are in the unsatisfiable core [2021-07-10 06:16:24,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 06:16:31,193 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 53 [2021-07-10 06:16:32,002 INFO L134 CoverageAnalysis]: Checked inductivity of 3042 backedges. 0 proven. 3042 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:16:32,002 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054155555] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:16:32,002 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 06:16:32,002 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [68, 86] total 152 [2021-07-10 06:16:32,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619169525] [2021-07-10 06:16:32,002 INFO L462 AbstractCegarLoop]: Interpolant automaton has 153 states [2021-07-10 06:16:32,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 06:16:32,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 153 interpolants. [2021-07-10 06:16:32,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2152, Invalid=21104, Unknown=0, NotChecked=0, Total=23256 [2021-07-10 06:16:32,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:16:32,004 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 06:16:32,004 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 153 states, 153 states have (on average 2.2222222222222223) internal successors, (340), 152 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 06:16:32,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:16:32,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:16:32,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:16:32,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:16:32,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:16:32,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-07-10 06:16:32,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-10 06:16:32,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-10 06:16:32,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2021-07-10 06:16:32,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-07-10 06:16:32,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2021-07-10 06:16:32,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-07-10 06:16:32,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-07-10 06:16:32,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2021-07-10 06:16:32,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 114 states. [2021-07-10 06:16:32,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 120 states. [2021-07-10 06:16:32,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2021-07-10 06:16:32,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 131 states. [2021-07-10 06:16:32,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:16:36,398 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 146 [2021-07-10 06:16:36,876 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 139 [2021-07-10 06:16:37,292 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 132 [2021-07-10 06:16:37,689 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 125 [2021-07-10 06:16:38,071 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 118 [2021-07-10 06:16:38,421 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2021-07-10 06:16:38,752 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 104 [2021-07-10 06:16:39,064 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2021-07-10 06:16:39,356 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-07-10 06:16:39,634 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-07-10 06:16:39,903 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-07-10 06:16:46,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:16:46,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:16:46,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:16:46,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:16:46,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:16:46,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-10 06:16:46,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 06:16:46,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-10 06:16:46,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-07-10 06:16:46,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-07-10 06:16:46,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-07-10 06:16:46,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-07-10 06:16:46,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-07-10 06:16:46,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-07-10 06:16:46,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2021-07-10 06:16:46,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2021-07-10 06:16:46,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2021-07-10 06:16:46,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2021-07-10 06:16:46,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2021-07-10 06:16:46,821 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable199 [2021-07-10 06:16:46,821 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 06:16:46,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 06:16:46,822 INFO L82 PathProgramCache]: Analyzing trace with hash -830139997, now seen corresponding path program 20 times [2021-07-10 06:16:46,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 06:16:46,822 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210557348] [2021-07-10 06:16:46,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 06:16:46,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:16:48,819 INFO L134 CoverageAnalysis]: Checked inductivity of 3362 backedges. 460 proven. 2902 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:16:48,819 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 06:16:48,819 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210557348] [2021-07-10 06:16:48,819 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210557348] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:16:48,819 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383495370] [2021-07-10 06:16:48,819 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 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:16:48,896 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 06:16:48,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 06:16:48,900 WARN L261 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 337 conjunts are in the unsatisfiable core [2021-07-10 06:16:48,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 06:16:55,079 INFO L134 CoverageAnalysis]: Checked inductivity of 3362 backedges. 0 proven. 3362 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:16:55,079 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [383495370] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:16:55,079 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 06:16:55,080 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 90] total 159 [2021-07-10 06:16:55,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665848748] [2021-07-10 06:16:55,080 INFO L462 AbstractCegarLoop]: Interpolant automaton has 160 states [2021-07-10 06:16:55,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 06:16:55,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 160 interpolants. [2021-07-10 06:16:55,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2532, Invalid=22908, Unknown=0, NotChecked=0, Total=25440 [2021-07-10 06:16:55,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:16:55,082 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 06:16:55,082 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 160 states, 160 states have (on average 2.225) internal successors, (356), 159 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 06:16:55,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:16:55,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:16:55,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:16:55,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:16:55,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:16:55,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-07-10 06:16:55,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-10 06:16:55,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-10 06:16:55,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2021-07-10 06:16:55,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-07-10 06:16:55,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2021-07-10 06:16:55,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-07-10 06:16:55,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-07-10 06:16:55,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2021-07-10 06:16:55,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 114 states. [2021-07-10 06:16:55,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 120 states. [2021-07-10 06:16:55,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2021-07-10 06:16:55,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 131 states. [2021-07-10 06:16:55,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 138 states. [2021-07-10 06:16:55,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:16:59,033 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 153 [2021-07-10 06:16:59,519 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 146 [2021-07-10 06:16:59,962 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 139 [2021-07-10 06:17:00,373 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 132 [2021-07-10 06:17:00,760 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 125 [2021-07-10 06:17:01,123 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 118 [2021-07-10 06:17:01,463 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 111 [2021-07-10 06:17:01,793 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 104 [2021-07-10 06:17:02,100 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2021-07-10 06:17:02,373 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2021-07-10 06:17:02,627 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2021-07-10 06:17:08,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:17:08,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:17:08,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:17:08,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:17:08,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:17:08,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-10 06:17:08,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 06:17:08,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-10 06:17:08,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-07-10 06:17:08,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-07-10 06:17:08,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-07-10 06:17:08,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-07-10 06:17:08,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-07-10 06:17:08,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-07-10 06:17:08,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2021-07-10 06:17:08,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2021-07-10 06:17:08,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2021-07-10 06:17:08,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2021-07-10 06:17:08,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2021-07-10 06:17:08,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2021-07-10 06:17:09,093 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable244 [2021-07-10 06:17:09,093 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 06:17:09,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 06:17:09,094 INFO L82 PathProgramCache]: Analyzing trace with hash 5818971, now seen corresponding path program 21 times [2021-07-10 06:17:09,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 06:17:09,094 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812174422] [2021-07-10 06:17:09,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 06:17:09,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:17:11,296 INFO L134 CoverageAnalysis]: Checked inductivity of 3698 backedges. 504 proven. 3194 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:17:11,296 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 06:17:11,296 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812174422] [2021-07-10 06:17:11,297 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812174422] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:17:11,297 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985076044] [2021-07-10 06:17:11,297 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 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:17:11,450 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 24 check-sat command(s) [2021-07-10 06:17:11,450 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 06:17:11,455 WARN L261 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 353 conjunts are in the unsatisfiable core [2021-07-10 06:17:11,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 06:17:18,272 INFO L134 CoverageAnalysis]: Checked inductivity of 3698 backedges. 0 proven. 3698 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:17:18,273 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985076044] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:17:18,273 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 06:17:18,273 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [74, 94] total 166 [2021-07-10 06:17:18,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885234481] [2021-07-10 06:17:18,273 INFO L462 AbstractCegarLoop]: Interpolant automaton has 167 states [2021-07-10 06:17:18,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 06:17:18,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 167 interpolants. [2021-07-10 06:17:18,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2752, Invalid=24970, Unknown=0, NotChecked=0, Total=27722 [2021-07-10 06:17:18,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:17:18,275 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 06:17:18,276 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 167 states, 167 states have (on average 2.2275449101796405) internal successors, (372), 166 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 06:17:18,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:17:18,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:17:18,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:17:18,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:17:18,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:17:18,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-07-10 06:17:18,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-10 06:17:18,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-10 06:17:18,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2021-07-10 06:17:18,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-07-10 06:17:18,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2021-07-10 06:17:18,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-07-10 06:17:18,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-07-10 06:17:18,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2021-07-10 06:17:18,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 114 states. [2021-07-10 06:17:18,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 120 states. [2021-07-10 06:17:18,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2021-07-10 06:17:18,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 131 states. [2021-07-10 06:17:18,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 138 states. [2021-07-10 06:17:18,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2021-07-10 06:17:18,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:17:22,744 WARN L205 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 160 [2021-07-10 06:17:23,278 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 153 [2021-07-10 06:17:23,763 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 146 [2021-07-10 06:17:24,207 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 139 [2021-07-10 06:17:24,626 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 132 [2021-07-10 06:17:25,023 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 125 [2021-07-10 06:17:25,423 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 118 [2021-07-10 06:17:25,774 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2021-07-10 06:17:26,100 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 104 [2021-07-10 06:17:26,403 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2021-07-10 06:17:26,690 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-07-10 06:17:26,958 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-07-10 06:17:33,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:17:33,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:17:33,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:17:33,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:17:33,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:17:33,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-10 06:17:33,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 06:17:33,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-10 06:17:33,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-07-10 06:17:33,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-07-10 06:17:33,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-07-10 06:17:33,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-07-10 06:17:33,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-07-10 06:17:33,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-07-10 06:17:33,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2021-07-10 06:17:33,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2021-07-10 06:17:33,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2021-07-10 06:17:33,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2021-07-10 06:17:33,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2021-07-10 06:17:33,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2021-07-10 06:17:33,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 150 states. [2021-07-10 06:17:34,035 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:17:34,036 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 06:17:34,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 06:17:34,036 INFO L82 PathProgramCache]: Analyzing trace with hash 300571411, now seen corresponding path program 22 times [2021-07-10 06:17:34,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 06:17:34,036 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375822892] [2021-07-10 06:17:34,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 06:17:34,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:17:36,392 INFO L134 CoverageAnalysis]: Checked inductivity of 4050 backedges. 550 proven. 3500 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:17:36,392 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 06:17:36,392 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375822892] [2021-07-10 06:17:36,392 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375822892] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:17:36,392 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651511427] [2021-07-10 06:17:36,392 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:17:36,476 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-10 06:17:36,476 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 06:17:36,480 WARN L261 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 348 conjunts are in the unsatisfiable core [2021-07-10 06:17:36,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 06:17:43,741 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-07-10 06:17:45,823 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 54 [2021-07-10 06:17:46,585 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2021-07-10 06:17:47,691 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 70 DAG size of output: 70 [2021-07-10 06:17:47,919 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 63 [2021-07-10 06:17:48,280 WARN L205 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 70 [2021-07-10 06:17:50,519 WARN L205 SmtUtils]: Spent 2.24 s on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2021-07-10 06:17:50,980 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-07-10 06:17:51,690 WARN L205 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-07-10 06:17:52,236 INFO L134 CoverageAnalysis]: Checked inductivity of 4050 backedges. 0 proven. 4050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:17:52,236 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651511427] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:17:52,236 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 06:17:52,236 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [77, 98] total 173 [2021-07-10 06:17:52,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463837983] [2021-07-10 06:17:52,236 INFO L462 AbstractCegarLoop]: Interpolant automaton has 174 states [2021-07-10 06:17:52,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 06:17:52,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 174 interpolants. [2021-07-10 06:17:52,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2746, Invalid=27356, Unknown=0, NotChecked=0, Total=30102 [2021-07-10 06:17:52,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:17:52,238 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 06:17:52,238 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 174 states, 174 states have (on average 2.2298850574712645) internal successors, (388), 173 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 06:17:52,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:17:52,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:17:52,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:17:52,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:17:52,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:17:52,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-07-10 06:17:52,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-10 06:17:52,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-10 06:17:52,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2021-07-10 06:17:52,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-07-10 06:17:52,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2021-07-10 06:17:52,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-07-10 06:17:52,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-07-10 06:17:52,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2021-07-10 06:17:52,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 114 states. [2021-07-10 06:17:52,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 120 states. [2021-07-10 06:17:52,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2021-07-10 06:17:52,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 131 states. [2021-07-10 06:17:52,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 138 states. [2021-07-10 06:17:52,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2021-07-10 06:17:52,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 150 states. [2021-07-10 06:17:52,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:17:57,932 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 167 [2021-07-10 06:17:58,518 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 160 [2021-07-10 06:17:59,031 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 153 [2021-07-10 06:17:59,527 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 146 [2021-07-10 06:17:59,994 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 139 [2021-07-10 06:18:00,438 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 132 [2021-07-10 06:18:00,875 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 125 [2021-07-10 06:18:01,277 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 118 [2021-07-10 06:18:01,661 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2021-07-10 06:18:02,019 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 104 [2021-07-10 06:18:02,367 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2021-07-10 06:18:02,684 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-07-10 06:18:02,985 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-07-10 06:18:03,553 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-07-10 06:18:11,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:18:11,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:18:11,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:18:11,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:18:11,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:18:11,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-10 06:18:11,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 06:18:11,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-10 06:18:11,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-07-10 06:18:11,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-07-10 06:18:11,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-07-10 06:18:11,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-07-10 06:18:11,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-07-10 06:18:11,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-07-10 06:18:11,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2021-07-10 06:18:11,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2021-07-10 06:18:11,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2021-07-10 06:18:11,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2021-07-10 06:18:11,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2021-07-10 06:18:11,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2021-07-10 06:18:11,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 150 states. [2021-07-10 06:18:11,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2021-07-10 06:18:12,127 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable246 [2021-07-10 06:18:12,127 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 06:18:12,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 06:18:12,127 INFO L82 PathProgramCache]: Analyzing trace with hash 915260363, now seen corresponding path program 23 times [2021-07-10 06:18:12,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 06:18:12,127 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035067287] [2021-07-10 06:18:12,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 06:18:12,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:18:14,576 INFO L134 CoverageAnalysis]: Checked inductivity of 4418 backedges. 598 proven. 3820 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:18:14,577 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 06:18:14,577 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035067287] [2021-07-10 06:18:14,577 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035067287] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:18:14,577 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558100119] [2021-07-10 06:18:14,577 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 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:18:14,717 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 26 check-sat command(s) [2021-07-10 06:18:14,717 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 06:18:14,721 WARN L261 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 385 conjunts are in the unsatisfiable core [2021-07-10 06:18:14,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 06:18:22,592 INFO L134 CoverageAnalysis]: Checked inductivity of 4418 backedges. 0 proven. 4418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:18:22,592 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558100119] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:18:22,592 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 06:18:22,592 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [80, 102] total 180 [2021-07-10 06:18:22,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197943518] [2021-07-10 06:18:22,593 INFO L462 AbstractCegarLoop]: Interpolant automaton has 181 states [2021-07-10 06:18:22,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 06:18:22,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 181 interpolants. [2021-07-10 06:18:22,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3213, Invalid=29367, Unknown=0, NotChecked=0, Total=32580 [2021-07-10 06:18:22,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:18:22,594 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 06:18:22,595 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 181 states, 181 states have (on average 2.2320441988950277) internal successors, (404), 180 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 06:18:22,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:18:22,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:18:22,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:18:22,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:18:22,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:18:22,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-07-10 06:18:22,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-10 06:18:22,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-10 06:18:22,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2021-07-10 06:18:22,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-07-10 06:18:22,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2021-07-10 06:18:22,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-07-10 06:18:22,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-07-10 06:18:22,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2021-07-10 06:18:22,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 114 states. [2021-07-10 06:18:22,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 120 states. [2021-07-10 06:18:22,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2021-07-10 06:18:22,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 131 states. [2021-07-10 06:18:22,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 138 states. [2021-07-10 06:18:22,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2021-07-10 06:18:22,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 150 states. [2021-07-10 06:18:22,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 156 states. [2021-07-10 06:18:22,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:18:27,407 WARN L205 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 174 [2021-07-10 06:18:27,993 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 167 [2021-07-10 06:18:28,516 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 160 [2021-07-10 06:18:29,011 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 153 [2021-07-10 06:18:29,498 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 146 [2021-07-10 06:18:29,947 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 139 [2021-07-10 06:18:30,370 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 132 [2021-07-10 06:18:30,770 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 125 [2021-07-10 06:18:31,146 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 118 [2021-07-10 06:18:31,513 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 111 [2021-07-10 06:18:31,845 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 104 [2021-07-10 06:18:32,156 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2021-07-10 06:18:32,483 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2021-07-10 06:18:32,757 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2021-07-10 06:18:40,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:18:40,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:18:40,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:18:40,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:18:40,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:18:40,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-10 06:18:40,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 06:18:40,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-10 06:18:40,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-07-10 06:18:40,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-07-10 06:18:40,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-07-10 06:18:40,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-07-10 06:18:40,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-07-10 06:18:40,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-07-10 06:18:40,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2021-07-10 06:18:40,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2021-07-10 06:18:40,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2021-07-10 06:18:40,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2021-07-10 06:18:40,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2021-07-10 06:18:40,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2021-07-10 06:18:40,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 150 states. [2021-07-10 06:18:40,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2021-07-10 06:18:40,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2021-07-10 06:18:40,535 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable308,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:18:40,535 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 06:18:40,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 06:18:40,535 INFO L82 PathProgramCache]: Analyzing trace with hash -426310525, now seen corresponding path program 24 times [2021-07-10 06:18:40,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 06:18:40,536 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317599982] [2021-07-10 06:18:40,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 06:18:40,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:18:43,183 INFO L134 CoverageAnalysis]: Checked inductivity of 4802 backedges. 648 proven. 4154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:18:43,184 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 06:18:43,184 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317599982] [2021-07-10 06:18:43,184 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317599982] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:18:43,184 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038391468] [2021-07-10 06:18:43,184 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 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:18:43,381 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 27 check-sat command(s) [2021-07-10 06:18:43,381 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 06:18:43,386 WARN L261 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 401 conjunts are in the unsatisfiable core [2021-07-10 06:18:43,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 06:18:51,867 INFO L134 CoverageAnalysis]: Checked inductivity of 4802 backedges. 0 proven. 4802 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:18:51,867 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038391468] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:18:51,867 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 06:18:51,867 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [83, 106] total 187 [2021-07-10 06:18:51,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597290337] [2021-07-10 06:18:51,868 INFO L462 AbstractCegarLoop]: Interpolant automaton has 188 states [2021-07-10 06:18:51,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 06:18:51,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 188 interpolants. [2021-07-10 06:18:51,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3460, Invalid=31696, Unknown=0, NotChecked=0, Total=35156 [2021-07-10 06:18:51,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:18:51,869 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 06:18:51,870 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 188 states, 188 states have (on average 2.234042553191489) internal successors, (420), 187 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 06:18:51,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:18:51,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:18:51,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:18:51,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:18:51,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:18:51,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-07-10 06:18:51,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-10 06:18:51,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-10 06:18:51,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2021-07-10 06:18:51,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-07-10 06:18:51,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2021-07-10 06:18:51,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-07-10 06:18:51,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-07-10 06:18:51,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2021-07-10 06:18:51,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 114 states. [2021-07-10 06:18:51,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 120 states. [2021-07-10 06:18:51,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2021-07-10 06:18:51,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 131 states. [2021-07-10 06:18:51,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 138 states. [2021-07-10 06:18:51,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2021-07-10 06:18:51,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 150 states. [2021-07-10 06:18:51,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 156 states. [2021-07-10 06:18:51,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 161 states. [2021-07-10 06:18:51,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:18:57,244 WARN L205 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 181 [2021-07-10 06:18:57,874 WARN L205 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 174 [2021-07-10 06:18:58,433 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 167 [2021-07-10 06:18:58,982 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 160 [2021-07-10 06:18:59,489 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 153 [2021-07-10 06:18:59,969 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 146 [2021-07-10 06:19:00,427 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 139 [2021-07-10 06:19:00,878 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 132 [2021-07-10 06:19:01,286 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 125 [2021-07-10 06:19:01,670 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 118 [2021-07-10 06:19:02,032 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2021-07-10 06:19:02,372 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 104 [2021-07-10 06:19:02,710 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2021-07-10 06:19:03,010 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-07-10 06:19:03,288 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-07-10 06:19:03,572 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-07-10 06:19:11,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 06:19:11,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:19:11,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:19:11,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-10 06:19:11,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-10 06:19:11,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-10 06:19:11,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 06:19:11,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-10 06:19:11,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-07-10 06:19:11,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-07-10 06:19:11,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-07-10 06:19:11,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-07-10 06:19:11,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-07-10 06:19:11,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-07-10 06:19:11,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2021-07-10 06:19:11,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2021-07-10 06:19:11,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2021-07-10 06:19:11,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2021-07-10 06:19:11,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2021-07-10 06:19:11,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2021-07-10 06:19:11,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 150 states. [2021-07-10 06:19:11,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2021-07-10 06:19:11,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2021-07-10 06:19:11,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 168 states. [2021-07-10 06:19:11,827 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable309 [2021-07-10 06:19:11,827 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 06:19:11,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 06:19:11,827 INFO L82 PathProgramCache]: Analyzing trace with hash -1621484229, now seen corresponding path program 25 times [2021-07-10 06:19:11,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 06:19:11,828 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233877978] [2021-07-10 06:19:11,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 06:19:11,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:19:14,606 INFO L134 CoverageAnalysis]: Checked inductivity of 5202 backedges. 700 proven. 4502 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:19:14,606 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 06:19:14,606 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233877978] [2021-07-10 06:19:14,606 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233877978] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:19:14,606 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72231846] [2021-07-10 06:19:14,607 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 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:19:14,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:19:14,701 WARN L261 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 393 conjunts are in the unsatisfiable core [2021-07-10 06:19:14,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 06:19:23,277 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-10 06:19:25,170 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 67 [2021-07-10 06:19:25,516 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-10 06:19:26,238 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2021-07-10 06:20:34,511 WARN L205 SmtUtils]: Spent 1.12 m on a formula simplification. DAG size of input: 72 DAG size of output: 72 [2021-07-10 06:20:49,854 WARN L205 SmtUtils]: Spent 15.34 s on a formula simplification. DAG size of input: 66 DAG size of output: 66 [2021-07-10 06:24:49,748 WARN L205 SmtUtils]: Spent 4.00 m on a formula simplification. DAG size of input: 66 DAG size of output: 66 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown