/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-Lockstep.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-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 13:32:51,204 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 13:32:51,205 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 13:32:51,239 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 13:32:51,289 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-Lockstep.epf [2021-07-14 13:32:51,363 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 13:32:51,363 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 13:32:51,364 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 13:32:51,364 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 13:32:51,366 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 13:32:51,366 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 13:32:51,366 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 13:32:51,366 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 13:32:51,366 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 13:32:51,366 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 13:32:51,367 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 13:32:51,367 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 13:32:51,367 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 13:32:51,367 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 13:32:51,367 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 13:32:51,368 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 13:32:51,368 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 13:32:51,368 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 13:32:51,368 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 13:32:51,368 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 13:32:51,368 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 13:32:51,368 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 13:32:51,369 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 13:32:51,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 13:32:51,369 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 13:32:51,369 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 13:32:51,369 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 13:32:51,369 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 13:32:51,369 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-07-14 13:32:51,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 13:32:51,370 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 13:32:51,370 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 13:32:51,370 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 13:32:51,370 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES [2021-07-14 13:32:51,370 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 13:32:51,687 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 13:32:51,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 13:32:51,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 13:32:51,701 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 13:32:51,702 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 13:32:51,703 INFO L432 ainManager$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 [2021-07-14 13:32:51,714 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/nonblocking-cntr-alt.wvr.bpl' [2021-07-14 13:32:51,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 13:32:51,748 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 13:32:51,749 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 13:32:51,749 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 13:32:51,749 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 13:32:51,762 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 14.07 01:32:51" (1/1) ... [2021-07-14 13:32:51,767 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 14.07 01:32:51" (1/1) ... [2021-07-14 13:32:51,782 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 13:32:51,784 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 13:32:51,784 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 13:32:51,784 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 13:32:51,790 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 14.07 01:32:51" (1/1) ... [2021-07-14 13:32:51,790 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 14.07 01:32:51" (1/1) ... [2021-07-14 13:32:51,790 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 14.07 01:32:51" (1/1) ... [2021-07-14 13:32:51,790 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 14.07 01:32:51" (1/1) ... [2021-07-14 13:32:51,792 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 14.07 01:32:51" (1/1) ... [2021-07-14 13:32:51,794 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 14.07 01:32:51" (1/1) ... [2021-07-14 13:32:51,795 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 14.07 01:32:51" (1/1) ... [2021-07-14 13:32:51,797 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 13:32:51,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 13:32:51,798 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 13:32:51,799 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 13:32:51,799 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 01:32:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 13:32:51,848 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 13:32:51,849 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 13:32:51,849 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 13:32:51,849 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 13:32:51,849 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 13:32:51,849 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 13:32:51,851 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 13:32:51,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 13:32:51,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 13:32:51,851 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 13:32:51,992 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 13:32:51,993 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-14 13:32:51,994 INFO L202 PluginConnector]: Adding new model nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:32:51 BoogieIcfgContainer [2021-07-14 13:32:51,994 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 13:32:51,996 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 13:32:51,996 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 13:32:51,998 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 13:32:51,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 01:32:51" (1/2) ... [2021-07-14 13:32:51,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fd38985 and model type nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:32:51, skipping insertion in model container [2021-07-14 13:32:51,999 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 14.07 01:32:51" (2/2) ... [2021-07-14 13:32:52,000 INFO L111 eAbstractionObserver]: Analyzing ICFG nonblocking-cntr-alt.wvr.bpl [2021-07-14 13:32:52,005 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 13:32:52,005 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 13:32:52,005 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 13:32:52,006 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 13:32:52,026 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-07-14 13:32:52,041 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 [2021-07-14 13:32:52,238 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 13:32:52,238 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 13:32:52,238 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 13:32:52,238 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 13:32:52,238 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 13:32:52,238 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 13:32:52,238 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 13:32:52,239 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 13:32:52,315 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:32:52,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:32:52,318 INFO L82 PathProgramCache]: Analyzing trace with hash -1060894973, now seen corresponding path program 1 times [2021-07-14 13:32:52,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:32:52,324 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414807558] [2021-07-14 13:32:52,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:32:52,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:32:52,715 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:32:52,716 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:32:52,716 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414807558] [2021-07-14 13:32:52,717 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414807558] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:32:52,717 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542299985] [2021-07-14 13:32:52,717 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) [2021-07-14 13:32:52,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:32:52,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 15 conjunts are in the unsatisfiable core [2021-07-14 13:32:52,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:32:53,059 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:32:53,059 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542299985] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:32:53,060 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:32:53,060 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2021-07-14 13:32:53,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525933121] [2021-07-14 13:32:53,065 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-14 13:32:53,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:32:53,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-14 13:32:53,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2021-07-14 13:32:53,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:32:53,079 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:32:53,080 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) [2021-07-14 13:32:53,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:32:53,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:32:53,443 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-07-14 13:32:53,444 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:32:53,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:32:53,444 INFO L82 PathProgramCache]: Analyzing trace with hash 558452029, now seen corresponding path program 2 times [2021-07-14 13:32:53,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:32:53,445 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585312586] [2021-07-14 13:32:53,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:32:53,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:32:53,614 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:32:53,615 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:32:53,615 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585312586] [2021-07-14 13:32:53,615 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585312586] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:32:53,615 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360185657] [2021-07-14 13:32:53,615 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:32:53,639 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 13:32:53,640 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 13:32:53,640 WARN L261 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 28 conjunts are in the unsatisfiable core [2021-07-14 13:32:53,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:32:53,960 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:32:53,960 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1360185657] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:32:53,960 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:32:53,961 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-07-14 13:32:53,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104097329] [2021-07-14 13:32:53,961 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-14 13:32:53,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:32:53,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-14 13:32:53,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=506, Unknown=0, NotChecked=0, Total=600 [2021-07-14 13:32:53,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:32:53,962 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:32:53,963 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) [2021-07-14 13:32:53,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:32:53,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:32:54,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:32:54,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:32:54,478 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:32:54,478 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:32:54,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:32:54,479 INFO L82 PathProgramCache]: Analyzing trace with hash -1828953865, now seen corresponding path program 3 times [2021-07-14 13:32:54,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:32:54,479 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101825022] [2021-07-14 13:32:54,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:32:54,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:32:54,789 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:32:54,789 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:32:54,789 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101825022] [2021-07-14 13:32:54,789 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101825022] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:32:54,790 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663948298] [2021-07-14 13:32:54,790 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:32:54,889 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-07-14 13:32:54,889 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 13:32:54,890 WARN L261 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 41 conjunts are in the unsatisfiable core [2021-07-14 13:32:54,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:32:55,424 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:32:55,425 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663948298] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:32:55,425 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:32:55,425 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 29 [2021-07-14 13:32:55,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242701857] [2021-07-14 13:32:55,426 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-07-14 13:32:55,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:32:55,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-07-14 13:32:55,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=772, Unknown=0, NotChecked=0, Total=870 [2021-07-14 13:32:55,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:32:55,427 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:32:55,427 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) [2021-07-14 13:32:55,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:32:55,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:32:55,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:32:55,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:32:55,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:32:55,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:32:56,187 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:32:56,187 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:32:56,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:32:56,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1366505525, now seen corresponding path program 4 times [2021-07-14 13:32:56,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:32:56,188 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385369493] [2021-07-14 13:32:56,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:32:56,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:32:56,465 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 25 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:32:56,466 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:32:56,466 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385369493] [2021-07-14 13:32:56,466 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385369493] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:32:56,466 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258616210] [2021-07-14 13:32:56,466 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:32:56,497 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 13:32:56,497 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 13:32:56,498 WARN L261 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 45 conjunts are in the unsatisfiable core [2021-07-14 13:32:56,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:32:56,957 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:32:56,958 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1258616210] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:32:56,958 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:32:56,958 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2021-07-14 13:32:56,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984473212] [2021-07-14 13:32:56,958 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-07-14 13:32:56,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:32:56,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-07-14 13:32:56,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=902, Unknown=0, NotChecked=0, Total=1056 [2021-07-14 13:32:56,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:32:56,959 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:32:56,959 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) [2021-07-14 13:32:56,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:32:56,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:32:56,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:32:56,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:32:57,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:32:57,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:32:57,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:32:57,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:32:58,164 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:32:58,164 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:32:58,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:32:58,165 INFO L82 PathProgramCache]: Analyzing trace with hash 821722843, now seen corresponding path program 5 times [2021-07-14 13:32:58,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:32:58,165 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993321030] [2021-07-14 13:32:58,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:32:58,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:32:58,663 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 40 proven. 202 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:32:58,663 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:32:58,663 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993321030] [2021-07-14 13:32:58,663 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993321030] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:32:58,665 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [438443868] [2021-07-14 13:32:58,665 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:32:58,705 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-07-14 13:32:58,705 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 13:32:58,706 WARN L261 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 97 conjunts are in the unsatisfiable core [2021-07-14 13:32:58,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:32:59,752 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:32:59,752 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [438443868] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:32:59,752 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:32:59,753 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 30] total 54 [2021-07-14 13:32:59,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622105095] [2021-07-14 13:32:59,753 INFO L462 AbstractCegarLoop]: Interpolant automaton has 55 states [2021-07-14 13:32:59,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:32:59,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-07-14 13:32:59,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=342, Invalid=2628, Unknown=0, NotChecked=0, Total=2970 [2021-07-14 13:32:59,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:32:59,754 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:32:59,755 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) [2021-07-14 13:32:59,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:32:59,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:32:59,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:32:59,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:32:59,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:33:01,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:33:01,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:33:01,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:33:01,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:33:01,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:33:02,088 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:33:02,089 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:33:02,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:33:02,089 INFO L82 PathProgramCache]: Analyzing trace with hash 235835283, now seen corresponding path program 6 times [2021-07-14 13:33:02,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:33:02,089 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988664170] [2021-07-14 13:33:02,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:33:02,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:33:02,857 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 54 proven. 284 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:33:02,857 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:33:02,857 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988664170] [2021-07-14 13:33:02,857 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988664170] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:33:02,859 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861581711] [2021-07-14 13:33:02,859 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:33:02,928 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2021-07-14 13:33:02,928 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 13:33:02,929 WARN L261 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 108 conjunts are in the unsatisfiable core [2021-07-14 13:33:02,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:33:04,359 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 0 proven. 338 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:33:04,359 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861581711] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:33:04,359 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:33:04,359 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 34] total 61 [2021-07-14 13:33:04,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939173897] [2021-07-14 13:33:04,360 INFO L462 AbstractCegarLoop]: Interpolant automaton has 62 states [2021-07-14 13:33:04,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:33:04,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2021-07-14 13:33:04,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=408, Invalid=3374, Unknown=0, NotChecked=0, Total=3782 [2021-07-14 13:33:04,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:33:04,362 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:33:04,362 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) [2021-07-14 13:33:04,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:33:04,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:33:04,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:33:04,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:33:04,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:33:04,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:33:07,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:33:07,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:33:07,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:33:07,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:33:07,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:33:07,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-14 13:33:07,271 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:33:07,271 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:33:07,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:33:07,272 INFO L82 PathProgramCache]: Analyzing trace with hash 552892491, now seen corresponding path program 7 times [2021-07-14 13:33:07,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:33:07,272 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21079976] [2021-07-14 13:33:07,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:33:07,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:33:07,932 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 70 proven. 380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:33:07,932 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:33:07,932 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21079976] [2021-07-14 13:33:07,932 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21079976] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:33:07,932 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528798989] [2021-07-14 13:33:07,932 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:33:07,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:33:07,985 WARN L261 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 123 conjunts are in the unsatisfiable core [2021-07-14 13:33:07,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:33:09,680 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:33:09,680 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528798989] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:33:09,681 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:33:09,681 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 38] total 68 [2021-07-14 13:33:09,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477303528] [2021-07-14 13:33:09,681 INFO L462 AbstractCegarLoop]: Interpolant automaton has 69 states [2021-07-14 13:33:09,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:33:09,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2021-07-14 13:33:09,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=494, Invalid=4198, Unknown=0, NotChecked=0, Total=4692 [2021-07-14 13:33:09,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:33:09,683 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:33:09,683 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) [2021-07-14 13:33:09,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:33:09,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:33:09,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:33:09,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:33:09,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:33:09,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-07-14 13:33:09,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:33:12,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:33:12,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:33:12,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:33:12,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:33:12,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:33:12,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-14 13:33:12,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 13:33:13,100 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-07-14 13:33:13,101 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:33:13,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:33:13,101 INFO L82 PathProgramCache]: Analyzing trace with hash -1845479165, now seen corresponding path program 8 times [2021-07-14 13:33:13,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:33:13,101 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928764453] [2021-07-14 13:33:13,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:33:13,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:33:13,904 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 88 proven. 490 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:33:13,905 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:33:13,905 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928764453] [2021-07-14 13:33:13,905 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928764453] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:33:13,905 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948831436] [2021-07-14 13:33:13,905 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:33:13,951 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 13:33:13,951 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 13:33:13,953 WARN L261 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 145 conjunts are in the unsatisfiable core [2021-07-14 13:33:13,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:33:15,686 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 0 proven. 578 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:33:15,687 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948831436] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:33:15,687 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:33:15,687 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 42] total 75 [2021-07-14 13:33:15,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867222519] [2021-07-14 13:33:15,687 INFO L462 AbstractCegarLoop]: Interpolant automaton has 76 states [2021-07-14 13:33:15,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:33:15,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2021-07-14 13:33:15,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=620, Invalid=5080, Unknown=0, NotChecked=0, Total=5700 [2021-07-14 13:33:15,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:33:15,689 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:33:15,689 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) [2021-07-14 13:33:15,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:33:15,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:33:15,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:33:15,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:33:15,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:33:15,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-07-14 13:33:15,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 13:33:15,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:33:17,253 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-07-14 13:33:19,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:33:19,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:33:19,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:33:19,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:33:19,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:33:19,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-14 13:33:19,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 13:33:19,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 13:33:19,533 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:33:19,533 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:33:19,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:33:19,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1903832645, now seen corresponding path program 9 times [2021-07-14 13:33:19,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:33:19,534 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424105127] [2021-07-14 13:33:19,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:33:19,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:33:20,532 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 108 proven. 614 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:33:20,532 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:33:20,532 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424105127] [2021-07-14 13:33:20,532 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424105127] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:33:20,532 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359435469] [2021-07-14 13:33:20,532 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:33:20,629 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2021-07-14 13:33:20,629 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 13:33:20,631 WARN L261 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 161 conjunts are in the unsatisfiable core [2021-07-14 13:33:20,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:33:22,748 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 0 proven. 722 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:33:22,749 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359435469] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:33:22,749 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:33:22,749 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 46] total 82 [2021-07-14 13:33:22,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510643160] [2021-07-14 13:33:22,749 INFO L462 AbstractCegarLoop]: Interpolant automaton has 83 states [2021-07-14 13:33:22,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:33:22,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2021-07-14 13:33:22,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=730, Invalid=6076, Unknown=0, NotChecked=0, Total=6806 [2021-07-14 13:33:22,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:33:22,751 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:33:22,751 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) [2021-07-14 13:33:22,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:33:22,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:33:22,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:33:22,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:33:22,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:33:22,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-07-14 13:33:22,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 13:33:22,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-14 13:33:22,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:33:24,506 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-07-14 13:33:24,723 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-07-14 13:33:27,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:33:27,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:33:27,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:33:27,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:33:27,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:33:27,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-14 13:33:27,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 13:33:27,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 13:33:27,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-07-14 13:33:27,417 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:33:27,417 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:33:27,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:33:27,419 INFO L82 PathProgramCache]: Analyzing trace with hash 148456051, now seen corresponding path program 10 times [2021-07-14 13:33:27,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:33:27,419 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554344206] [2021-07-14 13:33:27,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:33:27,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:33:28,465 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 130 proven. 752 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:33:28,465 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:33:28,466 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554344206] [2021-07-14 13:33:28,467 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554344206] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:33:28,467 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908722369] [2021-07-14 13:33:28,467 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:33:28,515 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 13:33:28,515 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 13:33:28,519 WARN L261 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 168 conjunts are in the unsatisfiable core [2021-07-14 13:33:28,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:33:31,480 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 0 proven. 882 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:33:31,481 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [908722369] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:33:31,481 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:33:31,481 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 50] total 89 [2021-07-14 13:33:31,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621573137] [2021-07-14 13:33:31,482 INFO L462 AbstractCegarLoop]: Interpolant automaton has 90 states [2021-07-14 13:33:31,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:33:31,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2021-07-14 13:33:31,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=802, Invalid=7208, Unknown=0, NotChecked=0, Total=8010 [2021-07-14 13:33:31,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:33:31,484 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:33:31,484 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) [2021-07-14 13:33:31,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:33:31,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:33:31,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:33:31,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:33:31,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:33:31,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-07-14 13:33:31,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 13:33:31,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-14 13:33:31,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2021-07-14 13:33:31,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:33:33,437 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-07-14 13:33:33,719 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-07-14 13:33:36,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:33:36,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:33:36,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:33:36,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:33:36,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:33:36,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-14 13:33:36,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 13:33:36,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 13:33:36,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-07-14 13:33:36,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-07-14 13:33:37,161 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2021-07-14 13:33:37,161 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:33:37,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:33:37,161 INFO L82 PathProgramCache]: Analyzing trace with hash 2018413355, now seen corresponding path program 11 times [2021-07-14 13:33:37,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:33:37,162 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753337975] [2021-07-14 13:33:37,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:33:37,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:33:38,237 INFO L134 CoverageAnalysis]: Checked inductivity of 1058 backedges. 154 proven. 904 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:33:38,237 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:33:38,237 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753337975] [2021-07-14 13:33:38,238 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753337975] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:33:38,238 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080229401] [2021-07-14 13:33:38,238 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:33:38,366 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2021-07-14 13:33:38,367 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 13:33:38,369 WARN L261 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 193 conjunts are in the unsatisfiable core [2021-07-14 13:33:38,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:33:41,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1058 backedges. 0 proven. 1058 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:33:41,298 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2080229401] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:33:41,298 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:33:41,298 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 54] total 96 [2021-07-14 13:33:41,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623955771] [2021-07-14 13:33:41,298 INFO L462 AbstractCegarLoop]: Interpolant automaton has 97 states [2021-07-14 13:33:41,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:33:41,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2021-07-14 13:33:41,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=977, Invalid=8335, Unknown=0, NotChecked=0, Total=9312 [2021-07-14 13:33:41,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:33:41,300 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:33:41,301 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) [2021-07-14 13:33:41,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:33:41,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:33:41,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:33:41,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:33:41,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:33:41,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-07-14 13:33:41,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 13:33:41,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-14 13:33:41,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2021-07-14 13:33:41,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-07-14 13:33:41,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:33:43,444 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-07-14 13:33:43,699 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-07-14 13:33:43,918 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-07-14 13:33:46,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:33:46,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:33:46,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:33:46,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:33:46,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:33:46,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-14 13:33:46,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 13:33:46,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 13:33:46,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-07-14 13:33:46,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-07-14 13:33:46,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-07-14 13:33:47,187 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:33:47,187 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:33:47,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:33:47,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1724273693, now seen corresponding path program 12 times [2021-07-14 13:33:47,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:33:47,188 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534009468] [2021-07-14 13:33:47,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:33:47,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:33:48,286 INFO L134 CoverageAnalysis]: Checked inductivity of 1250 backedges. 180 proven. 1070 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:33:48,286 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:33:48,286 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534009468] [2021-07-14 13:33:48,287 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534009468] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:33:48,287 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701857662] [2021-07-14 13:33:48,287 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:33:48,392 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2021-07-14 13:33:48,392 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 13:33:48,395 WARN L261 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 206 conjunts are in the unsatisfiable core [2021-07-14 13:33:48,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:33:51,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1250 backedges. 0 proven. 1250 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:33:51,799 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701857662] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:33:51,799 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:33:51,799 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 58] total 103 [2021-07-14 13:33:51,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659676908] [2021-07-14 13:33:51,799 INFO L462 AbstractCegarLoop]: Interpolant automaton has 104 states [2021-07-14 13:33:51,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:33:51,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2021-07-14 13:33:51,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1104, Invalid=9608, Unknown=0, NotChecked=0, Total=10712 [2021-07-14 13:33:51,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:33:51,803 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:33:51,803 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) [2021-07-14 13:33:51,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:33:51,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:33:51,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:33:51,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:33:51,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:33:51,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-07-14 13:33:51,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 13:33:51,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-14 13:33:51,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2021-07-14 13:33:51,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-07-14 13:33:51,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2021-07-14 13:33:51,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:33:54,311 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2021-07-14 13:33:54,590 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2021-07-14 13:33:54,814 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2021-07-14 13:33:55,057 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2021-07-14 13:33:58,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:33:58,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:33:58,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:33:58,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:33:58,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:33:58,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-14 13:33:58,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 13:33:58,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 13:33:58,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-07-14 13:33:58,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-07-14 13:33:58,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-07-14 13:33:58,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-07-14 13:33:58,734 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2021-07-14 13:33:58,734 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:33:58,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:33:58,735 INFO L82 PathProgramCache]: Analyzing trace with hash 753837211, now seen corresponding path program 13 times [2021-07-14 13:33:58,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:33:58,735 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390607580] [2021-07-14 13:33:58,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:33:58,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:33:59,951 INFO L134 CoverageAnalysis]: Checked inductivity of 1458 backedges. 208 proven. 1250 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:33:59,952 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:33:59,952 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390607580] [2021-07-14 13:33:59,952 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390607580] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:33:59,952 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2067573500] [2021-07-14 13:33:59,952 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:34:00,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:34:00,014 WARN L261 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 213 conjunts are in the unsatisfiable core [2021-07-14 13:34:00,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:34:04,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1458 backedges. 0 proven. 1458 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:34:04,204 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2067573500] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:34:04,204 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:34:04,204 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 62] total 110 [2021-07-14 13:34:04,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418403723] [2021-07-14 13:34:04,204 INFO L462 AbstractCegarLoop]: Interpolant automaton has 111 states [2021-07-14 13:34:04,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:34:04,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2021-07-14 13:34:04,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1178, Invalid=11032, Unknown=0, NotChecked=0, Total=12210 [2021-07-14 13:34:04,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:34:04,206 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:34:04,207 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) [2021-07-14 13:34:04,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:34:04,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:34:04,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:34:04,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:34:04,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:34:04,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-07-14 13:34:04,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 13:34:04,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-14 13:34:04,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2021-07-14 13:34:04,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-07-14 13:34:04,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2021-07-14 13:34:04,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-07-14 13:34:04,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:34:07,067 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 104 [2021-07-14 13:34:07,390 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2021-07-14 13:34:07,683 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2021-07-14 13:34:07,910 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2021-07-14 13:34:12,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:34:12,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:34:12,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:34:12,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:34:12,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:34:12,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-14 13:34:12,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 13:34:12,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 13:34:12,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-07-14 13:34:12,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-07-14 13:34:12,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-07-14 13:34:12,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-07-14 13:34:12,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-07-14 13:34:12,346 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:34:12,346 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:34:12,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:34:12,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1178503853, now seen corresponding path program 14 times [2021-07-14 13:34:12,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:34:12,347 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22021827] [2021-07-14 13:34:12,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:34:12,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:34:14,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1682 backedges. 238 proven. 1444 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:34:14,070 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:34:14,070 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22021827] [2021-07-14 13:34:14,070 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22021827] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:34:14,070 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107380333] [2021-07-14 13:34:14,070 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 [2021-07-14 13:34:14,132 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 13:34:14,132 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 13:34:14,135 WARN L261 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 241 conjunts are in the unsatisfiable core [2021-07-14 13:34:14,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:34:18,040 INFO L134 CoverageAnalysis]: Checked inductivity of 1682 backedges. 0 proven. 1682 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:34:18,040 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2107380333] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:34:18,040 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:34:18,040 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 66] total 117 [2021-07-14 13:34:18,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547262366] [2021-07-14 13:34:18,041 INFO L462 AbstractCegarLoop]: Interpolant automaton has 118 states [2021-07-14 13:34:18,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:34:18,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 118 interpolants. [2021-07-14 13:34:18,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1415, Invalid=12391, Unknown=0, NotChecked=0, Total=13806 [2021-07-14 13:34:18,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:34:18,042 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:34:18,042 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) [2021-07-14 13:34:18,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:34:18,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:34:18,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:34:18,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:34:18,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:34:18,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-07-14 13:34:18,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 13:34:18,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-14 13:34:18,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2021-07-14 13:34:18,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-07-14 13:34:18,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2021-07-14 13:34:18,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-07-14 13:34:18,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-07-14 13:34:18,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:34:20,552 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2021-07-14 13:34:20,888 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 104 [2021-07-14 13:34:21,176 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2021-07-14 13:34:21,446 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-07-14 13:34:21,716 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-07-14 13:34:21,989 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-07-14 13:34:22,207 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-07-14 13:34:26,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:34:26,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:34:26,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:34:26,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:34:26,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:34:26,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-14 13:34:26,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 13:34:26,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 13:34:26,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-07-14 13:34:26,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-07-14 13:34:26,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-07-14 13:34:26,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-07-14 13:34:26,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-07-14 13:34:26,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-07-14 13:34:26,337 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable116 [2021-07-14 13:34:26,337 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:34:26,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:34:26,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1258692107, now seen corresponding path program 15 times [2021-07-14 13:34:26,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:34:26,338 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445389577] [2021-07-14 13:34:26,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:34:26,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:34:27,869 INFO L134 CoverageAnalysis]: Checked inductivity of 1922 backedges. 270 proven. 1652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:34:27,869 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:34:27,870 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445389577] [2021-07-14 13:34:27,870 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445389577] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:34:27,870 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804845711] [2021-07-14 13:34:27,870 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 [2021-07-14 13:34:27,968 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 18 check-sat command(s) [2021-07-14 13:34:27,968 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 13:34:27,972 WARN L261 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 227 conjunts are in the unsatisfiable core [2021-07-14 13:34:27,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:34:32,043 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2021-07-14 13:34:32,172 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 40 [2021-07-14 13:34:32,313 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 40 [2021-07-14 13:34:33,701 WARN L205 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2021-07-14 13:34:34,338 WARN L205 SmtUtils]: Spent 636.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2021-07-14 13:34:34,465 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2021-07-14 13:34:34,633 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-14 13:34:36,917 INFO L134 CoverageAnalysis]: Checked inductivity of 1922 backedges. 0 proven. 1922 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:34:36,917 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804845711] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:34:36,917 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:34:36,917 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 70] total 124 [2021-07-14 13:34:36,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049168003] [2021-07-14 13:34:36,918 INFO L462 AbstractCegarLoop]: Interpolant automaton has 125 states [2021-07-14 13:34:36,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:34:36,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 125 interpolants. [2021-07-14 13:34:36,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1171, Invalid=14329, Unknown=0, NotChecked=0, Total=15500 [2021-07-14 13:34:36,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:34:36,919 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:34:36,919 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) [2021-07-14 13:34:36,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:34:36,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:34:36,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:34:36,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:34:36,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:34:36,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-07-14 13:34:36,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 13:34:36,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-14 13:34:36,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2021-07-14 13:34:36,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-07-14 13:34:36,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2021-07-14 13:34:36,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-07-14 13:34:36,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-07-14 13:34:36,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2021-07-14 13:34:36,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:34:40,780 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 118 [2021-07-14 13:34:41,167 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2021-07-14 13:34:41,522 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 104 [2021-07-14 13:34:41,831 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2021-07-14 13:34:42,126 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-07-14 13:34:42,413 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-07-14 13:34:42,673 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-07-14 13:34:48,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:34:48,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:34:48,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:34:48,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:34:48,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:34:48,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-14 13:34:48,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 13:34:48,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 13:34:48,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-07-14 13:34:48,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-07-14 13:34:48,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-07-14 13:34:48,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-07-14 13:34:48,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-07-14 13:34:48,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-07-14 13:34:48,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2021-07-14 13:34:48,417 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:34:48,418 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:34:48,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:34:48,418 INFO L82 PathProgramCache]: Analyzing trace with hash 823172803, now seen corresponding path program 16 times [2021-07-14 13:34:48,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:34:48,418 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284968848] [2021-07-14 13:34:48,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:34:48,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:34:50,036 INFO L134 CoverageAnalysis]: Checked inductivity of 2178 backedges. 304 proven. 1874 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:34:50,036 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:34:50,036 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284968848] [2021-07-14 13:34:50,036 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284968848] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:34:50,036 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614770476] [2021-07-14 13:34:50,036 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 [2021-07-14 13:34:50,109 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 13:34:50,110 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 13:34:50,112 WARN L261 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 258 conjunts are in the unsatisfiable core [2021-07-14 13:34:50,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:34:55,734 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 42 [2021-07-14 13:34:56,119 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 42 [2021-07-14 13:34:56,387 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 42 [2021-07-14 13:34:56,726 WARN L205 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 42 [2021-07-14 13:34:57,203 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-07-14 13:34:57,680 WARN L205 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2021-07-14 13:34:57,788 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2021-07-14 13:34:58,953 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 55 DAG size of output: 55 [2021-07-14 13:34:59,868 WARN L205 SmtUtils]: Spent 914.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 55 [2021-07-14 13:35:00,122 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2021-07-14 13:35:01,146 WARN L205 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 55 DAG size of output: 55 [2021-07-14 13:35:01,460 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2021-07-14 13:35:02,511 INFO L134 CoverageAnalysis]: Checked inductivity of 2178 backedges. 0 proven. 2178 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:35:02,511 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1614770476] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:35:02,511 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:35:02,511 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 74] total 131 [2021-07-14 13:35:02,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800665930] [2021-07-14 13:35:02,511 INFO L462 AbstractCegarLoop]: Interpolant automaton has 132 states [2021-07-14 13:35:02,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:35:02,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 132 interpolants. [2021-07-14 13:35:02,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1630, Invalid=15662, Unknown=0, NotChecked=0, Total=17292 [2021-07-14 13:35:02,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:35:02,513 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:35:02,513 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) [2021-07-14 13:35:02,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:35:02,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:35:02,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:35:02,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:35:02,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:35:02,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-07-14 13:35:02,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 13:35:02,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-14 13:35:02,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2021-07-14 13:35:02,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-07-14 13:35:02,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2021-07-14 13:35:02,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-07-14 13:35:02,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-07-14 13:35:02,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2021-07-14 13:35:02,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 114 states. [2021-07-14 13:35:02,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:35:06,676 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 125 [2021-07-14 13:35:07,135 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 118 [2021-07-14 13:35:07,515 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2021-07-14 13:35:07,857 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 104 [2021-07-14 13:35:08,184 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2021-07-14 13:35:08,492 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-07-14 13:35:08,791 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-07-14 13:35:09,063 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-07-14 13:35:09,315 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-07-14 13:35:15,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:35:15,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:35:15,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:35:15,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:35:15,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:35:15,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-14 13:35:15,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 13:35:15,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 13:35:15,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-07-14 13:35:15,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-07-14 13:35:15,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-07-14 13:35:15,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-07-14 13:35:15,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-07-14 13:35:15,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-07-14 13:35:15,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2021-07-14 13:35:15,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2021-07-14 13:35:15,378 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable158 [2021-07-14 13:35:15,378 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:35:15,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:35:15,379 INFO L82 PathProgramCache]: Analyzing trace with hash -1053493381, now seen corresponding path program 17 times [2021-07-14 13:35:15,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:35:15,379 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284985292] [2021-07-14 13:35:15,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:35:15,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:35:17,249 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 340 proven. 2110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:35:17,250 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:35:17,250 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284985292] [2021-07-14 13:35:17,250 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284985292] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:35:17,250 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151411375] [2021-07-14 13:35:17,250 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 [2021-07-14 13:35:17,367 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 20 check-sat command(s) [2021-07-14 13:35:17,367 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 13:35:17,372 WARN L261 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 289 conjunts are in the unsatisfiable core [2021-07-14 13:35:17,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:35:22,961 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 0 proven. 2450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:35:22,961 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151411375] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:35:22,961 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:35:22,961 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 78] total 138 [2021-07-14 13:35:22,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588593350] [2021-07-14 13:35:22,962 INFO L462 AbstractCegarLoop]: Interpolant automaton has 139 states [2021-07-14 13:35:22,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:35:22,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 139 interpolants. [2021-07-14 13:35:22,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1934, Invalid=17248, Unknown=0, NotChecked=0, Total=19182 [2021-07-14 13:35:22,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:35:22,965 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:35:22,966 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) [2021-07-14 13:35:22,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:35:22,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:35:22,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:35:22,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:35:22,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:35:22,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-07-14 13:35:22,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 13:35:22,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-14 13:35:22,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2021-07-14 13:35:22,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-07-14 13:35:22,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2021-07-14 13:35:22,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-07-14 13:35:22,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-07-14 13:35:22,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2021-07-14 13:35:22,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 114 states. [2021-07-14 13:35:22,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 120 states. [2021-07-14 13:35:22,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:35:26,543 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 132 [2021-07-14 13:35:26,981 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 125 [2021-07-14 13:35:27,361 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 118 [2021-07-14 13:35:27,707 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2021-07-14 13:35:28,009 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 104 [2021-07-14 13:35:28,315 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2021-07-14 13:35:28,595 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-07-14 13:35:28,847 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-07-14 13:35:29,091 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-07-14 13:35:29,332 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-07-14 13:35:34,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:35:34,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:35:34,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:35:34,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:35:34,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:35:34,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-14 13:35:34,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 13:35:34,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 13:35:34,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-07-14 13:35:34,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-07-14 13:35:34,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-07-14 13:35:34,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-07-14 13:35:34,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-07-14 13:35:34,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-07-14 13:35:34,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2021-07-14 13:35:34,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2021-07-14 13:35:34,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2021-07-14 13:35:34,708 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable199 [2021-07-14 13:35:34,709 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:35:34,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:35:34,710 INFO L82 PathProgramCache]: Analyzing trace with hash 365373491, now seen corresponding path program 18 times [2021-07-14 13:35:34,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:35:34,710 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004507814] [2021-07-14 13:35:34,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:35:34,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:35:36,937 INFO L134 CoverageAnalysis]: Checked inductivity of 2738 backedges. 378 proven. 2360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:35:36,937 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:35:36,937 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004507814] [2021-07-14 13:35:36,937 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004507814] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:35:36,937 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1407036687] [2021-07-14 13:35:36,937 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 [2021-07-14 13:35:37,078 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s) [2021-07-14 13:35:37,078 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 13:35:37,082 WARN L261 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 305 conjunts are in the unsatisfiable core [2021-07-14 13:35:37,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:35:43,047 INFO L134 CoverageAnalysis]: Checked inductivity of 2738 backedges. 0 proven. 2738 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:35:43,047 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1407036687] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:35:43,047 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:35:43,047 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 82] total 145 [2021-07-14 13:35:43,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410275904] [2021-07-14 13:35:43,047 INFO L462 AbstractCegarLoop]: Interpolant automaton has 146 states [2021-07-14 13:35:43,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:35:43,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 146 interpolants. [2021-07-14 13:35:43,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2123, Invalid=19047, Unknown=0, NotChecked=0, Total=21170 [2021-07-14 13:35:43,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:35:43,049 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:35:43,049 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) [2021-07-14 13:35:43,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:35:43,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:35:43,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:35:43,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:35:43,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:35:43,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-07-14 13:35:43,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 13:35:43,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-14 13:35:43,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2021-07-14 13:35:43,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-07-14 13:35:43,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2021-07-14 13:35:43,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-07-14 13:35:43,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-07-14 13:35:43,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2021-07-14 13:35:43,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 114 states. [2021-07-14 13:35:43,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 120 states. [2021-07-14 13:35:43,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2021-07-14 13:35:43,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:35:47,526 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 139 [2021-07-14 13:35:48,002 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 132 [2021-07-14 13:35:48,424 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 125 [2021-07-14 13:35:48,817 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 118 [2021-07-14 13:35:49,212 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 111 [2021-07-14 13:35:49,558 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 104 [2021-07-14 13:35:49,885 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2021-07-14 13:35:50,192 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2021-07-14 13:35:50,480 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2021-07-14 13:35:50,775 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2021-07-14 13:35:56,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:35:56,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:35:56,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:35:56,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:35:56,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:35:56,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-14 13:35:56,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 13:35:56,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 13:35:56,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-07-14 13:35:56,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-07-14 13:35:56,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-07-14 13:35:56,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-07-14 13:35:56,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-07-14 13:35:56,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-07-14 13:35:56,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2021-07-14 13:35:56,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2021-07-14 13:35:56,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2021-07-14 13:35:56,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2021-07-14 13:35:56,840 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable200 [2021-07-14 13:35:56,840 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:35:56,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:35:56,840 INFO L82 PathProgramCache]: Analyzing trace with hash -837078805, now seen corresponding path program 19 times [2021-07-14 13:35:56,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:35:56,840 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154743733] [2021-07-14 13:35:56,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:35:56,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:35:58,925 INFO L134 CoverageAnalysis]: Checked inductivity of 3042 backedges. 418 proven. 2624 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:35:58,925 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:35:58,925 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154743733] [2021-07-14 13:35:58,925 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154743733] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:35:58,925 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071122714] [2021-07-14 13:35:58,925 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 [2021-07-14 13:35:59,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:35:59,006 WARN L261 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 303 conjunts are in the unsatisfiable core [2021-07-14 13:35:59,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:36:07,588 INFO L134 CoverageAnalysis]: Checked inductivity of 3042 backedges. 0 proven. 3042 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:36:07,588 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071122714] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:36:07,588 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:36:07,588 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [68, 86] total 152 [2021-07-14 13:36:07,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271653803] [2021-07-14 13:36:07,589 INFO L462 AbstractCegarLoop]: Interpolant automaton has 153 states [2021-07-14 13:36:07,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:36:07,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 153 interpolants. [2021-07-14 13:36:07,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2152, Invalid=21104, Unknown=0, NotChecked=0, Total=23256 [2021-07-14 13:36:07,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:36:07,591 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:36:07,592 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) [2021-07-14 13:36:07,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:36:07,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:36:07,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:36:07,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:36:07,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:36:07,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-07-14 13:36:07,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 13:36:07,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-14 13:36:07,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2021-07-14 13:36:07,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-07-14 13:36:07,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2021-07-14 13:36:07,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-07-14 13:36:07,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-07-14 13:36:07,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2021-07-14 13:36:07,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 114 states. [2021-07-14 13:36:07,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 120 states. [2021-07-14 13:36:07,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2021-07-14 13:36:07,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 131 states. [2021-07-14 13:36:07,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:36:12,207 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 146 [2021-07-14 13:36:12,717 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 139 [2021-07-14 13:36:13,215 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 132 [2021-07-14 13:36:13,583 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 125 [2021-07-14 13:36:13,951 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 118 [2021-07-14 13:36:14,295 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2021-07-14 13:36:14,629 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 104 [2021-07-14 13:36:14,941 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2021-07-14 13:36:15,241 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-07-14 13:36:15,515 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-07-14 13:36:15,775 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-07-14 13:36:23,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:36:23,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:36:23,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:36:23,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:36:23,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:36:23,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-14 13:36:23,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 13:36:23,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 13:36:23,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-07-14 13:36:23,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-07-14 13:36:23,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-07-14 13:36:23,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-07-14 13:36:23,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-07-14 13:36:23,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-07-14 13:36:23,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2021-07-14 13:36:23,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2021-07-14 13:36:23,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2021-07-14 13:36:23,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2021-07-14 13:36:23,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2021-07-14 13:36:23,520 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable201 [2021-07-14 13:36:23,520 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:36:23,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:36:23,521 INFO L82 PathProgramCache]: Analyzing trace with hash -830139997, now seen corresponding path program 20 times [2021-07-14 13:36:23,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:36:23,521 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687845580] [2021-07-14 13:36:23,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:36:23,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:36:25,797 INFO L134 CoverageAnalysis]: Checked inductivity of 3362 backedges. 460 proven. 2902 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:36:25,797 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:36:25,798 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687845580] [2021-07-14 13:36:25,798 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687845580] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:36:25,798 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026890075] [2021-07-14 13:36:25,798 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 [2021-07-14 13:36:25,882 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 13:36:25,882 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 13:36:25,886 WARN L261 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 337 conjunts are in the unsatisfiable core [2021-07-14 13:36:25,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:36:32,852 INFO L134 CoverageAnalysis]: Checked inductivity of 3362 backedges. 0 proven. 3362 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:36:32,853 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026890075] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:36:32,853 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:36:32,853 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 90] total 159 [2021-07-14 13:36:32,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959690610] [2021-07-14 13:36:32,853 INFO L462 AbstractCegarLoop]: Interpolant automaton has 160 states [2021-07-14 13:36:32,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:36:32,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 160 interpolants. [2021-07-14 13:36:32,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2532, Invalid=22908, Unknown=0, NotChecked=0, Total=25440 [2021-07-14 13:36:32,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:36:32,855 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:36:32,855 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) [2021-07-14 13:36:32,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:36:32,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:36:32,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:36:32,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:36:32,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:36:32,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-07-14 13:36:32,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 13:36:32,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-14 13:36:32,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2021-07-14 13:36:32,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-07-14 13:36:32,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2021-07-14 13:36:32,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-07-14 13:36:32,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-07-14 13:36:32,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2021-07-14 13:36:32,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 114 states. [2021-07-14 13:36:32,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 120 states. [2021-07-14 13:36:32,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2021-07-14 13:36:32,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 131 states. [2021-07-14 13:36:32,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 138 states. [2021-07-14 13:36:32,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:36:37,489 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 153 [2021-07-14 13:36:38,028 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 146 [2021-07-14 13:36:38,551 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 139 [2021-07-14 13:36:38,996 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 132 [2021-07-14 13:36:39,422 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 125 [2021-07-14 13:36:39,831 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 118 [2021-07-14 13:36:40,204 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 111 [2021-07-14 13:36:40,551 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 104 [2021-07-14 13:36:40,873 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2021-07-14 13:36:41,186 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2021-07-14 13:36:41,476 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2021-07-14 13:36:41,735 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2021-07-14 13:36:48,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:36:48,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:36:48,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:36:48,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:36:48,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:36:48,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-14 13:36:48,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 13:36:48,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 13:36:48,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-07-14 13:36:48,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-07-14 13:36:48,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-07-14 13:36:48,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-07-14 13:36:48,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-07-14 13:36:48,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-07-14 13:36:48,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2021-07-14 13:36:48,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2021-07-14 13:36:48,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2021-07-14 13:36:48,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2021-07-14 13:36:48,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2021-07-14 13:36:48,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2021-07-14 13:36:48,500 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable247 [2021-07-14 13:36:48,500 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:36:48,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:36:48,501 INFO L82 PathProgramCache]: Analyzing trace with hash 5818971, now seen corresponding path program 21 times [2021-07-14 13:36:48,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:36:48,501 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024793466] [2021-07-14 13:36:48,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:36:48,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:36:50,948 INFO L134 CoverageAnalysis]: Checked inductivity of 3698 backedges. 504 proven. 3194 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:36:50,949 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:36:50,949 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024793466] [2021-07-14 13:36:50,949 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024793466] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:36:50,949 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [900744936] [2021-07-14 13:36:50,949 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 [2021-07-14 13:36:51,108 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 24 check-sat command(s) [2021-07-14 13:36:51,108 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 13:36:51,113 WARN L261 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 353 conjunts are in the unsatisfiable core [2021-07-14 13:36:51,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:36:58,811 INFO L134 CoverageAnalysis]: Checked inductivity of 3698 backedges. 0 proven. 3698 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:36:58,811 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [900744936] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:36:58,811 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:36:58,811 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [74, 94] total 166 [2021-07-14 13:36:58,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854005904] [2021-07-14 13:36:58,812 INFO L462 AbstractCegarLoop]: Interpolant automaton has 167 states [2021-07-14 13:36:58,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:36:58,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 167 interpolants. [2021-07-14 13:36:58,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2752, Invalid=24970, Unknown=0, NotChecked=0, Total=27722 [2021-07-14 13:36:58,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:36:58,814 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:36:58,814 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) [2021-07-14 13:36:58,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:36:58,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:36:58,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:36:58,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:36:58,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:36:58,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-07-14 13:36:58,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 13:36:58,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-14 13:36:58,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2021-07-14 13:36:58,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-07-14 13:36:58,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2021-07-14 13:36:58,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-07-14 13:36:58,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-07-14 13:36:58,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2021-07-14 13:36:58,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 114 states. [2021-07-14 13:36:58,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 120 states. [2021-07-14 13:36:58,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2021-07-14 13:36:58,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 131 states. [2021-07-14 13:36:58,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 138 states. [2021-07-14 13:36:58,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2021-07-14 13:36:58,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:37:03,890 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 160 [2021-07-14 13:37:04,461 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 153 [2021-07-14 13:37:04,967 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 146 [2021-07-14 13:37:05,455 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 139 [2021-07-14 13:37:05,924 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 132 [2021-07-14 13:37:06,367 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 125 [2021-07-14 13:37:06,773 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 118 [2021-07-14 13:37:07,212 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2021-07-14 13:37:07,564 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 104 [2021-07-14 13:37:07,892 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2021-07-14 13:37:08,209 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-07-14 13:37:08,496 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-07-14 13:37:08,769 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-07-14 13:37:16,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:37:16,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:37:16,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:37:16,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:37:16,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:37:16,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-14 13:37:16,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 13:37:16,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 13:37:16,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-07-14 13:37:16,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-07-14 13:37:16,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-07-14 13:37:16,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-07-14 13:37:16,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-07-14 13:37:16,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-07-14 13:37:16,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2021-07-14 13:37:16,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2021-07-14 13:37:16,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2021-07-14 13:37:16,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2021-07-14 13:37:16,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2021-07-14 13:37:16,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2021-07-14 13:37:16,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 150 states. [2021-07-14 13:37:16,247 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:37:16,248 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:37:16,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:37:16,248 INFO L82 PathProgramCache]: Analyzing trace with hash 300571411, now seen corresponding path program 22 times [2021-07-14 13:37:16,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:37:16,248 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834609300] [2021-07-14 13:37:16,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:37:16,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:37:18,805 INFO L134 CoverageAnalysis]: Checked inductivity of 4050 backedges. 550 proven. 3500 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:37:18,806 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:37:18,806 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834609300] [2021-07-14 13:37:18,806 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834609300] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:37:18,806 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822805706] [2021-07-14 13:37:18,806 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 [2021-07-14 13:37:18,902 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 13:37:18,903 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 13:37:18,907 WARN L261 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 348 conjunts are in the unsatisfiable core [2021-07-14 13:37:18,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:37:29,380 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 56 [2021-07-14 13:37:29,793 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 56 [2021-07-14 13:37:29,974 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 56 [2021-07-14 13:37:30,110 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 56 [2021-07-14 13:37:30,794 WARN L205 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 68 [2021-07-14 13:37:31,285 WARN L205 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2021-07-14 13:37:32,217 WARN L205 SmtUtils]: Spent 859.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2021-07-14 13:37:33,027 WARN L205 SmtUtils]: Spent 810.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2021-07-14 13:37:33,655 WARN L205 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 58 [2021-07-14 13:37:34,067 WARN L205 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 58 [2021-07-14 13:37:34,727 WARN L205 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 60 [2021-07-14 13:37:34,840 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 60 [2021-07-14 13:37:34,970 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 60 [2021-07-14 13:37:35,416 WARN L205 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 60 [2021-07-14 13:37:35,969 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 72 [2021-07-14 13:37:36,088 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2021-07-14 13:37:36,577 INFO L134 CoverageAnalysis]: Checked inductivity of 4050 backedges. 0 proven. 4050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:37:36,577 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822805706] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:37:36,577 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:37:36,577 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [77, 98] total 173 [2021-07-14 13:37:36,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697040222] [2021-07-14 13:37:36,577 INFO L462 AbstractCegarLoop]: Interpolant automaton has 174 states [2021-07-14 13:37:36,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:37:36,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 174 interpolants. [2021-07-14 13:37:36,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2746, Invalid=27356, Unknown=0, NotChecked=0, Total=30102 [2021-07-14 13:37:36,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:37:36,579 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:37:36,579 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) [2021-07-14 13:37:36,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:37:36,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:37:36,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:37:36,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:37:36,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:37:36,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-07-14 13:37:36,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 13:37:36,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-14 13:37:36,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2021-07-14 13:37:36,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-07-14 13:37:36,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2021-07-14 13:37:36,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-07-14 13:37:36,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-07-14 13:37:36,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2021-07-14 13:37:36,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 114 states. [2021-07-14 13:37:36,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 120 states. [2021-07-14 13:37:36,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2021-07-14 13:37:36,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 131 states. [2021-07-14 13:37:36,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 138 states. [2021-07-14 13:37:36,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2021-07-14 13:37:36,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 150 states. [2021-07-14 13:37:36,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:37:41,937 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 167 [2021-07-14 13:37:42,533 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 160 [2021-07-14 13:37:43,040 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 153 [2021-07-14 13:37:43,539 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 146 [2021-07-14 13:37:44,039 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 139 [2021-07-14 13:37:44,519 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 132 [2021-07-14 13:37:44,996 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 125 [2021-07-14 13:37:45,430 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 118 [2021-07-14 13:37:45,849 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2021-07-14 13:37:46,231 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 104 [2021-07-14 13:37:46,593 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2021-07-14 13:37:46,936 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-07-14 13:37:47,257 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-07-14 13:37:47,563 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-07-14 13:37:57,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:37:57,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:37:57,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:37:57,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:37:57,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:37:57,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-14 13:37:57,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 13:37:57,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 13:37:57,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-07-14 13:37:57,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-07-14 13:37:57,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-07-14 13:37:57,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-07-14 13:37:57,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-07-14 13:37:57,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-07-14 13:37:57,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2021-07-14 13:37:57,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2021-07-14 13:37:57,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2021-07-14 13:37:57,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2021-07-14 13:37:57,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2021-07-14 13:37:57,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2021-07-14 13:37:57,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 150 states. [2021-07-14 13:37:57,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2021-07-14 13:37:57,423 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable249 [2021-07-14 13:37:57,423 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:37:57,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:37:57,424 INFO L82 PathProgramCache]: Analyzing trace with hash 915260363, now seen corresponding path program 23 times [2021-07-14 13:37:57,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:37:57,424 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985891070] [2021-07-14 13:37:57,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:37:57,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:38:00,079 INFO L134 CoverageAnalysis]: Checked inductivity of 4418 backedges. 598 proven. 3820 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:38:00,079 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:38:00,079 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985891070] [2021-07-14 13:38:00,079 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985891070] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:38:00,079 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244856626] [2021-07-14 13:38:00,079 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 [2021-07-14 13:38:00,225 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 26 check-sat command(s) [2021-07-14 13:38:00,225 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 13:38:00,229 WARN L261 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 385 conjunts are in the unsatisfiable core [2021-07-14 13:38:00,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:38:08,851 INFO L134 CoverageAnalysis]: Checked inductivity of 4418 backedges. 0 proven. 4418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:38:08,852 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1244856626] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:38:08,852 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:38:08,852 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [80, 102] total 180 [2021-07-14 13:38:08,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171996349] [2021-07-14 13:38:08,852 INFO L462 AbstractCegarLoop]: Interpolant automaton has 181 states [2021-07-14 13:38:08,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:38:08,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 181 interpolants. [2021-07-14 13:38:08,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3213, Invalid=29367, Unknown=0, NotChecked=0, Total=32580 [2021-07-14 13:38:08,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:38:08,855 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:38:08,855 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) [2021-07-14 13:38:08,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:38:08,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:38:08,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:38:08,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:38:08,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:38:08,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-07-14 13:38:08,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 13:38:08,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-14 13:38:08,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2021-07-14 13:38:08,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-07-14 13:38:08,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2021-07-14 13:38:08,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-07-14 13:38:08,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-07-14 13:38:08,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2021-07-14 13:38:08,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 114 states. [2021-07-14 13:38:08,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 120 states. [2021-07-14 13:38:08,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2021-07-14 13:38:08,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 131 states. [2021-07-14 13:38:08,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 138 states. [2021-07-14 13:38:08,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2021-07-14 13:38:08,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 150 states. [2021-07-14 13:38:08,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 156 states. [2021-07-14 13:38:08,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:38:14,070 WARN L205 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 174 [2021-07-14 13:38:14,694 WARN L205 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 167 [2021-07-14 13:38:15,227 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 160 [2021-07-14 13:38:15,728 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 153 [2021-07-14 13:38:16,216 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 146 [2021-07-14 13:38:16,705 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 139 [2021-07-14 13:38:17,132 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 132 [2021-07-14 13:38:17,532 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 125 [2021-07-14 13:38:17,917 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 118 [2021-07-14 13:38:18,274 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 111 [2021-07-14 13:38:18,631 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 104 [2021-07-14 13:38:18,966 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2021-07-14 13:38:19,277 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2021-07-14 13:38:19,574 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2021-07-14 13:38:19,831 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2021-07-14 13:38:27,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:38:27,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:38:27,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:38:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:38:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:38:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-14 13:38:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 13:38:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 13:38:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-07-14 13:38:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-07-14 13:38:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-07-14 13:38:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-07-14 13:38:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-07-14 13:38:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-07-14 13:38:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2021-07-14 13:38:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2021-07-14 13:38:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2021-07-14 13:38:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2021-07-14 13:38:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2021-07-14 13:38:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2021-07-14 13:38:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 150 states. [2021-07-14 13:38:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2021-07-14 13:38:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2021-07-14 13:38:28,136 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable309,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:38:28,136 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:38:28,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:38:28,136 INFO L82 PathProgramCache]: Analyzing trace with hash -426310525, now seen corresponding path program 24 times [2021-07-14 13:38:28,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:38:28,137 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509354518] [2021-07-14 13:38:28,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:38:28,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:38:31,126 INFO L134 CoverageAnalysis]: Checked inductivity of 4802 backedges. 648 proven. 4154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:38:31,126 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:38:31,126 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509354518] [2021-07-14 13:38:31,127 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509354518] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:38:31,127 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066650888] [2021-07-14 13:38:31,127 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 [2021-07-14 13:38:31,353 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 27 check-sat command(s) [2021-07-14 13:38:31,353 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 13:38:31,359 WARN L261 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 401 conjunts are in the unsatisfiable core [2021-07-14 13:38:31,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:38:40,588 INFO L134 CoverageAnalysis]: Checked inductivity of 4802 backedges. 0 proven. 4802 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:38:40,605 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066650888] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:38:40,605 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:38:40,605 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [83, 106] total 187 [2021-07-14 13:38:40,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545260273] [2021-07-14 13:38:40,605 INFO L462 AbstractCegarLoop]: Interpolant automaton has 188 states [2021-07-14 13:38:40,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:38:40,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 188 interpolants. [2021-07-14 13:38:40,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3460, Invalid=31696, Unknown=0, NotChecked=0, Total=35156 [2021-07-14 13:38:40,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:38:40,608 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:38:40,608 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) [2021-07-14 13:38:40,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:38:40,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:38:40,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:38:40,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:38:40,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:38:40,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-07-14 13:38:40,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 13:38:40,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-14 13:38:40,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2021-07-14 13:38:40,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-07-14 13:38:40,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2021-07-14 13:38:40,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-07-14 13:38:40,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-07-14 13:38:40,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2021-07-14 13:38:40,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 114 states. [2021-07-14 13:38:40,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 120 states. [2021-07-14 13:38:40,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2021-07-14 13:38:40,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 131 states. [2021-07-14 13:38:40,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 138 states. [2021-07-14 13:38:40,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2021-07-14 13:38:40,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 150 states. [2021-07-14 13:38:40,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 156 states. [2021-07-14 13:38:40,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 161 states. [2021-07-14 13:38:40,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:38:46,832 WARN L205 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 181 [2021-07-14 13:38:47,504 WARN L205 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 174 [2021-07-14 13:38:48,158 WARN L205 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 167 [2021-07-14 13:38:48,741 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 160 [2021-07-14 13:38:49,295 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 153 [2021-07-14 13:38:49,843 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 146 [2021-07-14 13:38:50,338 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 139 [2021-07-14 13:38:50,832 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 132 [2021-07-14 13:38:51,284 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 125 [2021-07-14 13:38:51,721 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 118 [2021-07-14 13:38:52,198 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2021-07-14 13:38:52,569 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 104 [2021-07-14 13:38:52,916 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2021-07-14 13:38:53,254 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-07-14 13:38:53,558 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-07-14 13:38:53,845 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-07-14 13:39:02,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:39:02,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:39:02,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 13:39:02,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-14 13:39:02,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-14 13:39:02,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-14 13:39:02,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 13:39:02,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 13:39:02,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-07-14 13:39:02,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-07-14 13:39:02,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-07-14 13:39:02,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-07-14 13:39:02,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-07-14 13:39:02,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-07-14 13:39:02,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2021-07-14 13:39:02,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2021-07-14 13:39:02,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2021-07-14 13:39:02,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2021-07-14 13:39:02,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2021-07-14 13:39:02,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2021-07-14 13:39:02,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 150 states. [2021-07-14 13:39:02,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2021-07-14 13:39:02,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2021-07-14 13:39:02,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 168 states. [2021-07-14 13:39:03,114 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable310 [2021-07-14 13:39:03,115 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:39:03,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:39:03,115 INFO L82 PathProgramCache]: Analyzing trace with hash -1621484229, now seen corresponding path program 25 times [2021-07-14 13:39:03,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:39:03,115 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943147444] [2021-07-14 13:39:03,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:39:03,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:39:06,436 INFO L134 CoverageAnalysis]: Checked inductivity of 5202 backedges. 700 proven. 4502 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:39:06,436 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:39:06,436 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943147444] [2021-07-14 13:39:06,436 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943147444] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:39:06,436 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373103208] [2021-07-14 13:39:06,437 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 [2021-07-14 13:39:06,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:39:06,545 WARN L261 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 393 conjunts are in the unsatisfiable core [2021-07-14 13:39:06,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:39:18,574 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2021-07-14 13:40:25,445 WARN L205 SmtUtils]: Spent 1.10 m on a formula simplification. DAG size of input: 72 DAG size of output: 72 [2021-07-14 13:46:15,492 WARN L205 SmtUtils]: Spent 5.83 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