/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/threaded-sum-3.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 04:11:36,843 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 04:11:36,845 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 04:11:36,883 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 04:11:36,937 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-14 04:11:36,938 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-14 04:11:36,939 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-14 04:11:36,943 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe.epf [2021-07-14 04:11:36,978 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 04:11:36,988 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 04:11:36,989 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 04:11:36,989 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 04:11:36,992 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 04:11:36,992 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 04:11:36,992 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 04:11:36,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 04:11:36,992 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 04:11:36,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 04:11:36,993 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 04:11:36,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 04:11:36,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 04:11:36,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 04:11:36,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 04:11:36,994 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 04:11:36,994 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 04:11:36,994 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 04:11:36,994 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 04:11:36,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 04:11:36,995 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 04:11:36,995 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 04:11:36,995 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 04:11:36,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 04:11:36,995 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 04:11:36,995 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 04:11:36,996 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 04:11:36,996 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 04:11:36,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 04:11:36,996 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 04:11:36,996 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 04:11:36,996 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 04:11:36,996 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-07-14 04:11:36,997 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 04:11:37,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 04:11:37,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 04:11:37,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 04:11:37,314 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 04:11:37,315 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 04:11:37,315 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/threaded-sum-3.wvr.bpl [2021-07-14 04:11:37,316 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/threaded-sum-3.wvr.bpl' [2021-07-14 04:11:37,341 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 04:11:37,342 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 04:11:37,343 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 04:11:37,344 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 04:11:37,344 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 04:11:37,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:11:37" (1/1) ... [2021-07-14 04:11:37,361 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:11:37" (1/1) ... [2021-07-14 04:11:37,368 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 04:11:37,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 04:11:37,371 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 04:11:37,371 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 04:11:37,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:11:37" (1/1) ... [2021-07-14 04:11:37,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:11:37" (1/1) ... [2021-07-14 04:11:37,379 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:11:37" (1/1) ... [2021-07-14 04:11:37,380 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:11:37" (1/1) ... [2021-07-14 04:11:37,383 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:11:37" (1/1) ... [2021-07-14 04:11:37,387 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:11:37" (1/1) ... [2021-07-14 04:11:37,388 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:11:37" (1/1) ... [2021-07-14 04:11:37,392 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 04:11:37,394 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 04:11:37,394 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 04:11:37,394 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 04:11:37,396 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:11:37" (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 04:11:37,458 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 04:11:37,459 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 04:11:37,459 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 04:11:37,459 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 04:11:37,459 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 04:11:37,459 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 04:11:37,459 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 04:11:37,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 04:11:37,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 04:11:37,459 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-14 04:11:37,459 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-14 04:11:37,460 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-14 04:11:37,460 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 04:11:37,685 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 04:11:37,685 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-14 04:11:37,687 INFO L202 PluginConnector]: Adding new model threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:11:37 BoogieIcfgContainer [2021-07-14 04:11:37,687 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 04:11:37,688 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 04:11:37,688 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 04:11:37,691 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 04:11:37,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:11:37" (1/2) ... [2021-07-14 04:11:37,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b82940c and model type threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 04:11:37, skipping insertion in model container [2021-07-14 04:11:37,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:11:37" (2/2) ... [2021-07-14 04:11:37,693 INFO L111 eAbstractionObserver]: Analyzing ICFG threaded-sum-3.wvr.bpl [2021-07-14 04:11:37,713 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 04:11:37,713 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 04:11:37,713 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 04:11:37,714 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 04:11:37,748 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-07-14 04:11:37,780 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-14 04:11:37,821 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 04:11:37,822 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 04:11:37,822 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 04:11:37,822 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 04:11:37,822 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 04:11:37,822 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 04:11:37,822 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 04:11:37,822 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 04:11:37,928 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 04:11:37,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 04:11:37,933 INFO L82 PathProgramCache]: Analyzing trace with hash -461446279, now seen corresponding path program 1 times [2021-07-14 04:11:37,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 04:11:37,941 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988199711] [2021-07-14 04:11:37,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 04:11:38,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 04:11:38,116 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 04:11:38,116 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 04:11:38,117 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988199711] [2021-07-14 04:11:38,118 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988199711] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 04:11:38,118 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 04:11:38,118 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-14 04:11:38,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449609626] [2021-07-14 04:11:38,131 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-14 04:11:38,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 04:11:38,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-14 04:11:38,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 04:11:38,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:11:38,148 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 04:11:38,149 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 04:11:38,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:11:38,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:11:38,235 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 04:11:38,235 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 04:11:38,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 04:11:38,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1113918995, now seen corresponding path program 2 times [2021-07-14 04:11:38,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 04:11:38,239 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124479826] [2021-07-14 04:11:38,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 04:11:38,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 04:11:38,403 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 04:11:38,404 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 04:11:38,404 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124479826] [2021-07-14 04:11:38,404 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124479826] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 04:11:38,404 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963692134] [2021-07-14 04:11:38,404 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 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 04:11:38,453 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 04:11:38,454 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 04:11:38,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-14 04:11:38,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 04:11:38,632 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 04:11:38,633 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [963692134] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 04:11:38,633 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 04:11:38,633 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-07-14 04:11:38,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967891086] [2021-07-14 04:11:38,637 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-14 04:11:38,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 04:11:38,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-14 04:11:38,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-07-14 04:11:38,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:11:38,641 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 04:11:38,641 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 04:11:38,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:11:38,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:11:38,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:11:38,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 04:11:38,980 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 04:11:38,981 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 04:11:38,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 04:11:38,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1487780981, now seen corresponding path program 3 times [2021-07-14 04:11:38,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 04:11:38,982 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129078839] [2021-07-14 04:11:38,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 04:11:38,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 04:11:39,022 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-14 04:11:39,022 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 04:11:39,022 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129078839] [2021-07-14 04:11:39,022 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129078839] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 04:11:39,024 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 04:11:39,024 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-14 04:11:39,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466962194] [2021-07-14 04:11:39,025 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-14 04:11:39,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 04:11:39,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-14 04:11:39,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-14 04:11:39,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:11:39,027 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 04:11:39,027 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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 04:11:39,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:11:39,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 04:11:39,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:11:39,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:11:39,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 04:11:39,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 04:11:39,101 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-14 04:11:39,102 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 04:11:39,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 04:11:39,102 INFO L82 PathProgramCache]: Analyzing trace with hash -3564747, now seen corresponding path program 4 times [2021-07-14 04:11:39,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 04:11:39,102 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116804998] [2021-07-14 04:11:39,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 04:11:39,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 04:11:39,162 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-14 04:11:39,162 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 04:11:39,162 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116804998] [2021-07-14 04:11:39,163 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116804998] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 04:11:39,163 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868072728] [2021-07-14 04:11:39,163 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 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 04:11:39,196 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 04:11:39,196 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 04:11:39,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 6 conjunts are in the unsatisfiable core [2021-07-14 04:11:39,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 04:11:39,295 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-14 04:11:39,296 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868072728] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 04:11:39,296 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 04:11:39,296 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-07-14 04:11:39,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557898507] [2021-07-14 04:11:39,297 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-14 04:11:39,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 04:11:39,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-14 04:11:39,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-07-14 04:11:39,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:11:39,302 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 04:11:39,303 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 04:11:39,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:11:39,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 04:11:39,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 04:11:39,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:11:39,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:11:39,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 04:11:39,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 04:11:39,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 04:11:39,580 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 04:11:39,581 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 04:11:39,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 04:11:39,581 INFO L82 PathProgramCache]: Analyzing trace with hash 6606155, now seen corresponding path program 5 times [2021-07-14 04:11:39,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 04:11:39,581 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318174645] [2021-07-14 04:11:39,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 04:11:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 04:11:39,598 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-07-14 04:11:39,598 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 04:11:39,598 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318174645] [2021-07-14 04:11:39,598 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318174645] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 04:11:39,599 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 04:11:39,599 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-14 04:11:39,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647384865] [2021-07-14 04:11:39,599 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-14 04:11:39,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 04:11:39,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-14 04:11:39,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 04:11:39,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:11:39,600 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 04:11:39,600 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 04:11:39,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:11:39,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 04:11:39,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 04:11:39,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 04:11:39,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:11:39,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:11:39,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 04:11:39,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 04:11:39,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 04:11:39,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:11:39,617 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-14 04:11:39,617 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 04:11:39,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 04:11:39,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1120933647, now seen corresponding path program 6 times [2021-07-14 04:11:39,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 04:11:39,618 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397716042] [2021-07-14 04:11:39,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 04:11:39,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 04:11:39,692 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 04:11:39,693 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 04:11:39,693 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397716042] [2021-07-14 04:11:39,693 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397716042] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 04:11:39,693 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199585640] [2021-07-14 04:11:39,693 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 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 04:11:39,732 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-07-14 04:11:39,732 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 04:11:39,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-07-14 04:11:39,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 04:11:39,822 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 04:11:39,822 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [199585640] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 04:11:39,823 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 04:11:39,823 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2021-07-14 04:11:39,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396389908] [2021-07-14 04:11:39,823 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-14 04:11:39,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 04:11:39,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-14 04:11:39,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-07-14 04:11:39,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:11:39,824 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 04:11:39,825 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 04:11:39,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:11:39,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 04:11:39,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 04:11:39,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 04:11:39,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:11:39,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:11:39,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:11:39,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 04:11:39,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 04:11:39,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 04:11:39,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:11:39,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 04:11:40,176 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 04:11:40,177 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 04:11:40,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 04:11:40,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1434180021, now seen corresponding path program 7 times [2021-07-14 04:11:40,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 04:11:40,178 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908198661] [2021-07-14 04:11:40,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 04:11:40,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 04:11:40,598 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 04:11:40,599 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 04:11:40,599 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908198661] [2021-07-14 04:11:40,599 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908198661] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 04:11:40,599 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333005156] [2021-07-14 04:11:40,599 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 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 04:11:40,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 04:11:40,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 19 conjunts are in the unsatisfiable core [2021-07-14 04:11:40,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 04:11:41,552 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 04:11:41,552 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333005156] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 04:11:41,553 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 04:11:41,553 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2021-07-14 04:11:41,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130903227] [2021-07-14 04:11:41,553 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-07-14 04:11:41,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 04:11:41,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-07-14 04:11:41,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=886, Unknown=0, NotChecked=0, Total=1056 [2021-07-14 04:11:41,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:11:41,555 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 04:11:41,556 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 2.121212121212121) internal successors, (70), 32 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 04:11:41,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:11:41,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 04:11:41,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 04:11:41,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 04:11:41,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:11:41,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 04:11:41,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:11:41,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:11:41,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 04:11:41,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 04:11:41,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 04:11:41,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:11:41,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 04:11:41,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 04:11:42,080 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-07-14 04:11:42,081 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 04:11:42,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 04:11:42,081 INFO L82 PathProgramCache]: Analyzing trace with hash -1078821511, now seen corresponding path program 8 times [2021-07-14 04:11:42,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 04:11:42,081 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061372345] [2021-07-14 04:11:42,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 04:11:42,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 04:11:42,695 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 1 proven. 32 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-14 04:11:42,696 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 04:11:42,696 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061372345] [2021-07-14 04:11:42,696 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061372345] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 04:11:42,696 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11347590] [2021-07-14 04:11:42,696 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 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 04:11:42,735 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 04:11:42,735 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 04:11:42,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 22 conjunts are in the unsatisfiable core [2021-07-14 04:11:42,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 04:11:43,515 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 39 [2021-07-14 04:11:44,238 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 04:11:44,238 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [11347590] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 04:11:44,238 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 04:11:44,238 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 20] total 36 [2021-07-14 04:11:44,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696306501] [2021-07-14 04:11:44,239 INFO L462 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-07-14 04:11:44,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 04:11:44,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-07-14 04:11:44,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=1138, Unknown=0, NotChecked=0, Total=1332 [2021-07-14 04:11:44,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:11:44,240 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 04:11:44,240 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 2.081081081081081) internal successors, (77), 36 states have internal predecessors, (77), 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 04:11:44,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:11:44,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 04:11:44,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 04:11:44,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 04:11:44,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:11:44,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 04:11:44,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 04:11:44,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:11:44,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:11:44,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 04:11:44,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 04:11:44,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 04:11:44,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:11:44,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 04:11:44,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 04:11:44,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 04:11:44,915 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 04:11:44,915 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 04:11:44,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 04:11:44,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1468923965, now seen corresponding path program 9 times [2021-07-14 04:11:44,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 04:11:44,916 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054729365] [2021-07-14 04:11:44,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 04:11:44,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 04:11:45,651 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-07-14 04:11:45,651 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 04:11:45,651 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054729365] [2021-07-14 04:11:45,651 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054729365] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 04:11:45,651 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [218770093] [2021-07-14 04:11:45,651 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 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 04:11:45,687 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-07-14 04:11:45,687 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 04:11:45,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 24 conjunts are in the unsatisfiable core [2021-07-14 04:11:45,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 04:11:46,393 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 45 [2021-07-14 04:11:46,922 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 50 [2021-07-14 04:11:47,462 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 04:11:47,462 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [218770093] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 04:11:47,462 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 04:11:47,463 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 21] total 37 [2021-07-14 04:11:47,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92904746] [2021-07-14 04:11:47,463 INFO L462 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-07-14 04:11:47,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 04:11:47,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-07-14 04:11:47,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1220, Unknown=0, NotChecked=0, Total=1406 [2021-07-14 04:11:47,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:11:47,464 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 04:11:47,465 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 38 states, 38 states have (on average 2.1315789473684212) internal successors, (81), 37 states have internal predecessors, (81), 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 04:11:47,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:11:47,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 04:11:47,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 04:11:47,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 04:11:47,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:11:47,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 04:11:47,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 04:11:47,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 04:11:47,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:11:47,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:11:47,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 04:11:47,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 04:11:47,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 04:11:47,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:11:47,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 04:11:47,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 04:11:47,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 04:11:47,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 04:11:48,193 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-07-14 04:11:48,193 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 04:11:48,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 04:11:48,193 INFO L82 PathProgramCache]: Analyzing trace with hash -802766591, now seen corresponding path program 10 times [2021-07-14 04:11:48,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 04:11:48,194 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831333093] [2021-07-14 04:11:48,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 04:11:48,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 04:11:48,961 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 1 proven. 72 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-07-14 04:11:48,962 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 04:11:48,962 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831333093] [2021-07-14 04:11:48,962 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831333093] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 04:11:48,962 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025985348] [2021-07-14 04:11:48,962 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 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 04:11:49,003 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 04:11:49,003 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 04:11:49,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 26 conjunts are in the unsatisfiable core [2021-07-14 04:11:49,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 04:11:49,735 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2021-07-14 04:11:49,908 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 51 [2021-07-14 04:11:50,505 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 65 [2021-07-14 04:11:50,813 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-07-14 04:11:50,984 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-07-14 04:11:51,166 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 04:11:51,167 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025985348] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 04:11:51,167 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 04:11:51,167 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 23] total 39 [2021-07-14 04:11:51,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448447114] [2021-07-14 04:11:51,167 INFO L462 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-07-14 04:11:51,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 04:11:51,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-07-14 04:11:51,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=1351, Unknown=0, NotChecked=0, Total=1560 [2021-07-14 04:11:51,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:11:51,168 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 04:11:51,169 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 40 states, 40 states have (on average 2.15) internal successors, (86), 39 states have internal predecessors, (86), 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 04:11:51,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:11:51,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 04:11:51,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 04:11:51,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 04:11:51,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:11:51,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 04:11:51,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 04:11:51,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 04:11:51,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 04:11:51,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:11:51,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:11:51,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 04:11:51,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 04:11:51,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 04:11:51,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:11:51,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 04:11:51,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 04:11:51,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 04:11:51,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 04:11:51,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 04:11:52,130 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2021-07-14 04:11:52,130 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 04:11:52,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 04:11:52,131 INFO L82 PathProgramCache]: Analyzing trace with hash 315080995, now seen corresponding path program 11 times [2021-07-14 04:11:52,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 04:11:52,131 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900701680] [2021-07-14 04:11:52,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 04:11:52,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 04:11:53,254 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-07-14 04:11:53,254 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 04:11:53,254 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900701680] [2021-07-14 04:11:53,254 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900701680] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 04:11:53,254 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367684854] [2021-07-14 04:11:53,254 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 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 04:11:53,305 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-07-14 04:11:53,306 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 04:11:53,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 33 conjunts are in the unsatisfiable core [2021-07-14 04:11:53,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 04:11:54,236 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-07-14 04:11:54,899 WARN L205 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 108 [2021-07-14 04:11:55,507 WARN L205 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 129 [2021-07-14 04:11:56,011 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-07-14 04:11:56,816 WARN L205 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 127 [2021-07-14 04:11:57,532 WARN L205 SmtUtils]: Spent 571.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 103 [2021-07-14 04:11:58,162 WARN L205 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 135 [2021-07-14 04:11:58,486 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2021-07-14 04:11:58,764 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-07-14 04:11:58,927 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 04:11:58,928 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367684854] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 04:11:58,928 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 04:11:58,928 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 26] total 42 [2021-07-14 04:11:58,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241847788] [2021-07-14 04:11:58,929 INFO L462 AbstractCegarLoop]: Interpolant automaton has 43 states [2021-07-14 04:11:58,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 04:11:58,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-07-14 04:11:58,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=1566, Unknown=0, NotChecked=0, Total=1806 [2021-07-14 04:11:58,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:11:58,931 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 04:11:58,931 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 43 states, 43 states have (on average 2.186046511627907) internal successors, (94), 42 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 04:11:58,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:11:58,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 04:11:58,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 04:11:58,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 04:11:58,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:11:58,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 04:11:58,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 04:11:58,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 04:11:58,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 04:11:58,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 04:11:58,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:12:00,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:12:00,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 04:12:00,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 04:12:00,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 04:12:00,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:12:00,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 04:12:00,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 04:12:00,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 04:12:00,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 04:12:00,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 04:12:00,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 04:12:00,238 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 04:12:00,239 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 04:12:00,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 04:12:00,239 INFO L82 PathProgramCache]: Analyzing trace with hash -798343227, now seen corresponding path program 12 times [2021-07-14 04:12:00,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 04:12:00,239 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286777908] [2021-07-14 04:12:00,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 04:12:00,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 04:12:02,109 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 1 proven. 154 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-07-14 04:12:02,110 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 04:12:02,110 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286777908] [2021-07-14 04:12:02,110 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286777908] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 04:12:02,110 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326448632] [2021-07-14 04:12:02,110 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 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 04:12:02,159 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2021-07-14 04:12:02,160 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 04:12:02,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 35 conjunts are in the unsatisfiable core [2021-07-14 04:12:02,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 04:12:03,644 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-07-14 04:12:03,905 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-07-14 04:12:04,484 WARN L205 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 127 [2021-07-14 04:12:04,813 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-07-14 04:12:05,589 WARN L205 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 129 [2021-07-14 04:12:06,392 WARN L205 SmtUtils]: Spent 609.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 131 [2021-07-14 04:12:07,207 WARN L205 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 145 [2021-07-14 04:12:08,253 WARN L205 SmtUtils]: Spent 757.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 174 [2021-07-14 04:12:08,785 WARN L205 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2021-07-14 04:12:09,488 WARN L205 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 112 [2021-07-14 04:12:09,695 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 195 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 04:12:09,696 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [326448632] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 04:12:09,696 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 04:12:09,696 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 29] total 46 [2021-07-14 04:12:09,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068786032] [2021-07-14 04:12:09,697 INFO L462 AbstractCegarLoop]: Interpolant automaton has 47 states [2021-07-14 04:12:09,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 04:12:09,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-07-14 04:12:09,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=1902, Unknown=0, NotChecked=0, Total=2162 [2021-07-14 04:12:09,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:12:09,698 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 04:12:09,698 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 47 states, 47 states have (on average 2.1702127659574466) internal successors, (102), 46 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 04:12:09,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:12:09,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 04:12:09,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 04:12:09,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 04:12:09,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:12:09,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 04:12:09,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 04:12:09,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 04:12:09,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 04:12:09,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 04:12:09,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 04:12:09,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:12:10,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:12:10,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 04:12:10,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 04:12:10,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 04:12:10,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:12:10,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 04:12:10,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 04:12:10,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 04:12:10,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 04:12:10,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 04:12:10,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 04:12:10,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 04:12:10,948 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 04:12:10,949 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 04:12:10,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 04:12:10,949 INFO L82 PathProgramCache]: Analyzing trace with hash -36521079, now seen corresponding path program 13 times [2021-07-14 04:12:10,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 04:12:10,949 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614282273] [2021-07-14 04:12:10,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 04:12:11,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 04:12:11,849 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 29 [2021-07-14 04:12:12,025 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 27 [2021-07-14 04:12:12,159 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 27 [2021-07-14 04:12:12,698 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 3 proven. 190 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-07-14 04:12:12,698 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 04:12:12,698 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614282273] [2021-07-14 04:12:12,698 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614282273] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 04:12:12,698 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406997533] [2021-07-14 04:12:12,698 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 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 04:12:12,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 04:12:12,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 36 conjunts are in the unsatisfiable core [2021-07-14 04:12:12,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 04:12:13,878 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2021-07-14 04:12:14,412 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-07-14 04:12:14,692 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-07-14 04:12:15,618 WARN L205 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 158 [2021-07-14 04:12:16,127 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-07-14 04:12:17,010 WARN L205 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 159 [2021-07-14 04:12:17,867 WARN L205 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 160 [2021-07-14 04:12:18,952 WARN L205 SmtUtils]: Spent 818.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 183 [2021-07-14 04:12:20,451 WARN L205 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 206 DAG size of output: 177 [2021-07-14 04:12:21,710 WARN L205 SmtUtils]: Spent 847.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 206 [2021-07-14 04:12:22,309 WARN L205 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-07-14 04:12:23,125 WARN L205 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 144 [2021-07-14 04:12:23,403 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 0 proven. 251 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 04:12:23,404 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406997533] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 04:12:23,404 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 04:12:23,404 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 31] total 48 [2021-07-14 04:12:23,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037416459] [2021-07-14 04:12:23,404 INFO L462 AbstractCegarLoop]: Interpolant automaton has 49 states [2021-07-14 04:12:23,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 04:12:23,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-07-14 04:12:23,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=262, Invalid=2090, Unknown=0, NotChecked=0, Total=2352 [2021-07-14 04:12:23,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:12:23,405 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 04:12:23,406 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 49 states, 49 states have (on average 2.163265306122449) internal successors, (106), 48 states have internal predecessors, (106), 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 04:12:23,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:12:23,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 04:12:23,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 04:12:23,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 04:12:23,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:12:23,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 04:12:23,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 04:12:23,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 04:12:23,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 04:12:23,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 04:12:23,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-14 04:12:23,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-14 04:12:23,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:12:24,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:12:24,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 04:12:24,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 04:12:24,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 04:12:24,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:12:24,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 04:12:24,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 04:12:24,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 04:12:24,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 04:12:24,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 04:12:24,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 04:12:24,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 04:12:24,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 04:12:24,783 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable208 [2021-07-14 04:12:24,783 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 04:12:24,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 04:12:24,784 INFO L82 PathProgramCache]: Analyzing trace with hash -933899605, now seen corresponding path program 14 times [2021-07-14 04:12:24,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 04:12:24,784 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472302452] [2021-07-14 04:12:24,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 04:12:24,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 04:12:25,826 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 33 [2021-07-14 04:12:27,616 WARN L205 SmtUtils]: Spent 735.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 159 [2021-07-14 04:12:28,012 WARN L205 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 46 [2021-07-14 04:12:29,521 WARN L205 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 169 DAG size of output: 147 [2021-07-14 04:12:29,935 WARN L205 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 29 [2021-07-14 04:12:31,342 WARN L205 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 169 DAG size of output: 127 [2021-07-14 04:12:31,736 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 36 [2021-07-14 04:12:33,209 WARN L205 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 168 DAG size of output: 121 [2021-07-14 04:12:33,559 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 39 [2021-07-14 04:12:36,086 WARN L205 SmtUtils]: Spent 2.53 s on a formula simplification. DAG size of input: 165 DAG size of output: 122 [2021-07-14 04:12:36,433 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 42 [2021-07-14 04:12:37,367 WARN L205 SmtUtils]: Spent 932.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 112 [2021-07-14 04:12:37,707 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 46 [2021-07-14 04:12:41,104 WARN L205 SmtUtils]: Spent 3.40 s on a formula simplification. DAG size of input: 157 DAG size of output: 116 [2021-07-14 04:12:41,400 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 41 [2021-07-14 04:12:42,189 WARN L205 SmtUtils]: Spent 787.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 99 [2021-07-14 04:12:43,529 WARN L205 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 102 DAG size of output: 85 [2021-07-14 04:12:43,760 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 39 [2021-07-14 04:12:44,140 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 1 proven. 324 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 04:12:44,140 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 04:12:44,140 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472302452] [2021-07-14 04:12:44,141 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472302452] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 04:12:44,141 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564740370] [2021-07-14 04:12:44,141 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 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 04:12:44,202 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 04:12:44,202 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 04:12:44,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 39 conjunts are in the unsatisfiable core [2021-07-14 04:12:44,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 04:12:45,817 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-07-14 04:12:46,450 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2021-07-14 04:12:46,964 WARN L205 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 122 [2021-07-14 04:12:47,722 WARN L205 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 146 [2021-07-14 04:12:48,238 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2021-07-14 04:12:48,996 WARN L205 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 142 [2021-07-14 04:12:49,682 WARN L205 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 139 [2021-07-14 04:12:50,159 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2021-07-14 04:12:50,653 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-07-14 04:12:51,329 WARN L205 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2021-07-14 04:12:51,993 WARN L205 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2021-07-14 04:12:52,960 WARN L205 SmtUtils]: Spent 493.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-07-14 04:12:53,663 WARN L205 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-07-14 04:12:54,805 WARN L205 SmtUtils]: Spent 842.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 170 [2021-07-14 04:12:55,131 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 0 proven. 326 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 04:12:55,131 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564740370] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 04:12:55,131 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 04:12:55,131 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 34] total 63 [2021-07-14 04:12:55,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010561270] [2021-07-14 04:12:55,132 INFO L462 AbstractCegarLoop]: Interpolant automaton has 64 states [2021-07-14 04:12:55,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 04:12:55,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-07-14 04:12:55,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=264, Invalid=3768, Unknown=0, NotChecked=0, Total=4032 [2021-07-14 04:12:55,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:12:55,133 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 04:12:55,134 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 64 states, 64 states have (on average 2.109375) internal successors, (135), 63 states have internal predecessors, (135), 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 04:12:55,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:12:55,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 04:12:55,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 04:12:55,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 04:12:55,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:12:55,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 04:12:55,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 04:12:55,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 04:12:55,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 04:12:55,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 04:12:55,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-14 04:12:55,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-14 04:12:55,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-14 04:12:55,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:12:56,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:12:56,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 04:12:56,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 04:12:56,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 04:12:56,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:12:56,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 04:12:56,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 04:12:56,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 04:12:56,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 04:12:56,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 04:12:56,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 04:12:56,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 04:12:56,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 04:12:56,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 04:12:56,754 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable301 [2021-07-14 04:12:56,754 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 04:12:56,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 04:12:56,755 INFO L82 PathProgramCache]: Analyzing trace with hash 743124497, now seen corresponding path program 15 times [2021-07-14 04:12:56,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 04:12:56,755 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857188442] [2021-07-14 04:12:56,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 04:12:56,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 04:12:58,032 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 54 [2021-07-14 04:12:59,890 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 84 [2021-07-14 04:13:00,614 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 29 [2021-07-14 04:13:00,765 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 110 [2021-07-14 04:13:00,989 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 28 [2021-07-14 04:13:01,375 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 34 [2021-07-14 04:13:02,014 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 2 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 04:13:02,014 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 04:13:02,015 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857188442] [2021-07-14 04:13:02,015 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857188442] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 04:13:02,015 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821076250] [2021-07-14 04:13:02,015 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 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 04:13:02,094 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 21 check-sat command(s) [2021-07-14 04:13:02,095 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 04:13:02,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 43 conjunts are in the unsatisfiable core [2021-07-14 04:13:02,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 04:13:04,436 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 94 [2021-07-14 04:13:05,517 WARN L205 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 174 [2021-07-14 04:13:06,553 WARN L205 SmtUtils]: Spent 789.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 201 [2021-07-14 04:13:09,160 WARN L205 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 276 DAG size of output: 244 [2021-07-14 04:13:10,177 WARN L205 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 228 [2021-07-14 04:13:11,184 WARN L205 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2021-07-14 04:13:12,694 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 282 DAG size of output: 203 [2021-07-14 04:13:14,369 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 284 DAG size of output: 219 [2021-07-14 04:13:15,916 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 225 DAG size of output: 195 [2021-07-14 04:13:18,534 WARN L205 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 266 DAG size of output: 224 [2021-07-14 04:13:19,648 WARN L205 SmtUtils]: Spent 668.00 ms on a formula simplification that was a NOOP. DAG size: 230 [2021-07-14 04:13:20,967 WARN L205 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2021-07-14 04:13:22,093 WARN L205 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2021-07-14 04:13:23,320 WARN L205 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-07-14 04:13:24,012 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 0 proven. 437 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 04:13:24,012 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821076250] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 04:13:24,012 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 04:13:24,012 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 37] total 69 [2021-07-14 04:13:24,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243993417] [2021-07-14 04:13:24,013 INFO L462 AbstractCegarLoop]: Interpolant automaton has 70 states [2021-07-14 04:13:24,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 04:13:24,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2021-07-14 04:13:24,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=384, Invalid=4446, Unknown=0, NotChecked=0, Total=4830 [2021-07-14 04:13:24,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:13:24,014 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 04:13:24,014 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 70 states, 70 states have (on average 2.1142857142857143) internal successors, (148), 69 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 04:13:24,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:13:24,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 04:13:24,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 04:13:24,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 04:13:24,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:13:24,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 04:13:24,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 04:13:24,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 04:13:24,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 04:13:24,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 04:13:24,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-14 04:13:24,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-14 04:13:24,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-14 04:13:24,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 04:13:24,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:13:25,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:13:25,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 04:13:25,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 04:13:25,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 04:13:25,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:13:25,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 04:13:25,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 04:13:25,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 04:13:25,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 04:13:25,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 04:13:25,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 04:13:25,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 04:13:25,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 04:13:25,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 04:13:25,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-14 04:13:26,070 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable368 [2021-07-14 04:13:26,070 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 04:13:26,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 04:13:26,071 INFO L82 PathProgramCache]: Analyzing trace with hash -1558497062, now seen corresponding path program 16 times [2021-07-14 04:13:26,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 04:13:26,071 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003803358] [2021-07-14 04:13:26,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 04:13:26,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 04:13:27,265 WARN L205 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 41 [2021-07-14 04:13:27,692 WARN L205 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 40 [2021-07-14 04:13:28,138 WARN L205 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 41 [2021-07-14 04:13:28,579 WARN L205 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 43 [2021-07-14 04:13:28,896 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 38 [2021-07-14 04:13:29,110 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 44 [2021-07-14 04:13:29,491 WARN L205 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 39 [2021-07-14 04:13:29,875 WARN L205 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 49 [2021-07-14 04:13:30,205 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 47 [2021-07-14 04:13:30,360 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 40 [2021-07-14 04:13:30,622 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 37 [2021-07-14 04:13:30,807 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 38 [2021-07-14 04:13:31,040 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 33 [2021-07-14 04:13:31,241 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 42 [2021-07-14 04:13:31,490 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 40 [2021-07-14 04:13:31,760 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 44 [2021-07-14 04:13:32,048 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 45 [2021-07-14 04:13:32,414 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 45 [2021-07-14 04:13:32,782 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 48 [2021-07-14 04:13:32,979 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 43 [2021-07-14 04:13:33,150 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 62 [2021-07-14 04:13:33,337 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 81 [2021-07-14 04:13:33,488 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 28 [2021-07-14 04:13:33,603 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2021-07-14 04:13:34,374 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 6 proven. 414 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2021-07-14 04:13:34,374 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 04:13:34,374 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003803358] [2021-07-14 04:13:34,374 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003803358] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 04:13:34,374 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725699736] [2021-07-14 04:13:34,374 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 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 04:13:34,460 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 04:13:34,460 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 04:13:34,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 51 conjunts are in the unsatisfiable core [2021-07-14 04:13:34,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 04:13:36,570 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-07-14 04:13:36,880 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 105 [2021-07-14 04:13:37,661 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2021-07-14 04:13:38,073 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-07-14 04:13:39,064 WARN L205 SmtUtils]: Spent 729.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 182 [2021-07-14 04:13:39,627 WARN L205 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2021-07-14 04:13:40,607 WARN L205 SmtUtils]: Spent 717.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 178 [2021-07-14 04:13:41,141 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2021-07-14 04:13:41,785 WARN L205 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2021-07-14 04:13:42,427 WARN L205 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2021-07-14 04:13:43,330 WARN L205 SmtUtils]: Spent 514.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-07-14 04:13:44,709 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 237 DAG size of output: 235 [2021-07-14 04:13:45,903 WARN L205 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2021-07-14 04:13:46,894 WARN L205 SmtUtils]: Spent 672.00 ms on a formula simplification that was a NOOP. DAG size: 259 [2021-07-14 04:13:47,849 WARN L205 SmtUtils]: Spent 677.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2021-07-14 04:13:48,881 WARN L205 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 259 [2021-07-14 04:13:50,826 WARN L205 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 319 DAG size of output: 260 [2021-07-14 04:13:52,619 WARN L205 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 280 DAG size of output: 259 [2021-07-14 04:13:56,332 WARN L205 SmtUtils]: Spent 3.04 s on a formula simplification. DAG size of input: 304 DAG size of output: 299 [2021-07-14 04:13:57,711 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 298 [2021-07-14 04:13:59,150 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 211 DAG size of output: 210 [2021-07-14 04:13:59,661 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 0 proven. 598 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 04:13:59,662 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725699736] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 04:13:59,662 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 04:13:59,662 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 44] total 66 [2021-07-14 04:13:59,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197099765] [2021-07-14 04:13:59,662 INFO L462 AbstractCegarLoop]: Interpolant automaton has 67 states [2021-07-14 04:13:59,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 04:13:59,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2021-07-14 04:13:59,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=355, Invalid=4067, Unknown=0, NotChecked=0, Total=4422 [2021-07-14 04:13:59,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:13:59,666 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 04:13:59,666 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 67 states, 67 states have (on average 2.1194029850746268) internal successors, (142), 66 states have internal predecessors, (142), 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 04:13:59,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:13:59,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 04:13:59,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 04:13:59,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 04:13:59,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:13:59,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 04:13:59,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 04:13:59,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 04:13:59,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 04:13:59,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 04:13:59,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-14 04:13:59,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-14 04:13:59,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-14 04:13:59,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 04:13:59,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-07-14 04:13:59,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:14:04,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:14:04,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 04:14:04,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 04:14:04,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 04:14:04,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:14:04,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 04:14:04,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 04:14:04,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 04:14:04,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 04:14:04,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 04:14:04,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 04:14:04,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 04:14:04,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 04:14:04,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 04:14:04,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-14 04:14:04,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-07-14 04:14:04,274 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable517,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 04:14:04,275 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 04:14:04,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 04:14:04,275 INFO L82 PathProgramCache]: Analyzing trace with hash -1398266022, now seen corresponding path program 17 times [2021-07-14 04:14:04,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 04:14:04,275 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676103434] [2021-07-14 04:14:04,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 04:14:04,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 04:14:07,650 WARN L205 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 79 DAG size of output: 53 [2021-07-14 04:14:12,185 WARN L205 SmtUtils]: Spent 4.45 s on a formula simplification. DAG size of input: 94 DAG size of output: 44 [2021-07-14 04:14:25,103 WARN L205 SmtUtils]: Spent 12.85 s on a formula simplification. DAG size of input: 113 DAG size of output: 48 [2021-07-14 04:14:33,053 WARN L205 SmtUtils]: Spent 7.87 s on a formula simplification. DAG size of input: 125 DAG size of output: 53 [2021-07-14 04:14:56,675 WARN L205 SmtUtils]: Spent 23.56 s on a formula simplification. DAG size of input: 137 DAG size of output: 61 [2021-07-14 04:15:34,189 WARN L205 SmtUtils]: Spent 37.49 s on a formula simplification. DAG size of input: 148 DAG size of output: 47 [2021-07-14 04:23:33,348 WARN L205 SmtUtils]: Spent 7.99 m on a formula simplification. DAG size of input: 165 DAG size of output: 44 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown