/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistent-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/threaded-sum-3.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 13:40:18,686 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 13:40:18,688 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 13:40:18,713 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 13:40:18,809 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistent-NoLbe-Lockstep.epf [2021-07-14 13:40:18,846 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 13:40:18,847 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 13:40:18,847 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 13:40:18,847 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 13:40:18,849 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 13:40:18,850 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 13:40:18,850 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 13:40:18,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 13:40:18,850 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 13:40:18,850 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 13:40:18,851 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 13:40:18,851 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 13:40:18,851 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 13:40:18,851 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 13:40:18,851 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 13:40:18,851 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 13:40:18,852 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 13:40:18,852 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 13:40:18,852 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 13:40:18,852 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 13:40:18,852 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 13:40:18,852 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 13:40:18,852 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 13:40:18,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 13:40:18,853 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 13:40:18,853 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 13:40:18,853 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 13:40:18,853 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 13:40:18,853 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-07-14 13:40:18,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 13:40:18,853 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 13:40:18,853 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 13:40:18,854 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 13:40:18,854 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES [2021-07-14 13:40:18,854 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 13:40:19,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 13:40:19,214 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 13:40:19,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 13:40:19,217 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 13:40:19,222 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 13:40:19,222 INFO L432 ainManager$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 13:40:19,223 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 13:40:19,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 13:40:19,257 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 13:40:19,258 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 13:40:19,258 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 13:40:19,258 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 13:40:19,271 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 01:40:19" (1/1) ... [2021-07-14 13:40:19,278 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 01:40:19" (1/1) ... [2021-07-14 13:40:19,286 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 13:40:19,288 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 13:40:19,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 13:40:19,288 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 13:40:19,295 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 01:40:19" (1/1) ... [2021-07-14 13:40:19,295 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 01:40:19" (1/1) ... [2021-07-14 13:40:19,297 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 01:40:19" (1/1) ... [2021-07-14 13:40:19,297 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 01:40:19" (1/1) ... [2021-07-14 13:40:19,301 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 01:40:19" (1/1) ... [2021-07-14 13:40:19,305 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 01:40:19" (1/1) ... [2021-07-14 13:40:19,306 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 01:40:19" (1/1) ... [2021-07-14 13:40:19,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 13:40:19,314 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 13:40:19,314 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 13:40:19,315 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 13:40:19,316 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 01:40:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 13:40:19,380 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 13:40:19,380 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 13:40:19,380 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 13:40:19,380 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 13:40:19,380 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 13:40:19,380 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 13:40:19,380 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 13:40:19,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 13:40:19,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 13:40:19,381 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-14 13:40:19,381 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-14 13:40:19,381 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-14 13:40:19,382 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 13:40:19,563 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 13:40:19,564 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-14 13:40:19,566 INFO L202 PluginConnector]: Adding new model threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:40:19 BoogieIcfgContainer [2021-07-14 13:40:19,566 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 13:40:19,569 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 13:40:19,569 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 13:40:19,571 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 13:40:19,572 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 01:40:19" (1/2) ... [2021-07-14 13:40:19,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1780c313 and model type threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:40:19, skipping insertion in model container [2021-07-14 13:40:19,573 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 01:40:19" (2/2) ... [2021-07-14 13:40:19,574 INFO L111 eAbstractionObserver]: Analyzing ICFG threaded-sum-3.wvr.bpl [2021-07-14 13:40:19,580 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 13:40:19,580 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 13:40:19,580 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 13:40:19,581 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 13:40:19,611 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-07-14 13:40:19,631 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 13:40:19,777 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 13:40:19,778 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 13:40:19,778 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 13:40:19,778 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 13:40:19,778 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 13:40:19,778 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 13:40:19,778 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 13:40:19,778 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 13:40:20,043 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:40:20,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:40:20,051 INFO L82 PathProgramCache]: Analyzing trace with hash 519009280, now seen corresponding path program 1 times [2021-07-14 13:40:20,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:40:20,059 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937980970] [2021-07-14 13:40:20,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:40:20,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:40:20,210 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-07-14 13:40:20,210 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:40:20,211 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937980970] [2021-07-14 13:40:20,212 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937980970] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 13:40:20,212 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 13:40:20,212 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-14 13:40:20,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101570578] [2021-07-14 13:40:20,216 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-14 13:40:20,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:40:20,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-14 13:40:20,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 13:40:20,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:40:20,234 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:40:20,236 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 13:40:20,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:40:20,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:40:20,301 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 13:40:20,301 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:40:20,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:40:20,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1056974319, now seen corresponding path program 2 times [2021-07-14 13:40:20,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:40:20,304 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997727972] [2021-07-14 13:40:20,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:40:20,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:40:20,463 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 13:40:20,463 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:40:20,463 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997727972] [2021-07-14 13:40:20,463 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997727972] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:40:20,464 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985886374] [2021-07-14 13:40:20,464 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 13:40:20,524 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 13:40:20,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 13:40:20,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-14 13:40:20,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:40:20,707 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 13:40:20,707 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985886374] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:40:20,707 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:40:20,708 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-07-14 13:40:20,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497886316] [2021-07-14 13:40:20,709 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-14 13:40:20,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:40:20,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-14 13:40:20,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-07-14 13:40:20,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:40:20,710 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:40:20,710 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 13:40:20,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:40:20,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:40:20,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:40:20,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:40:21,120 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:40:21,121 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:40:21,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:40:21,121 INFO L82 PathProgramCache]: Analyzing trace with hash 651855283, now seen corresponding path program 3 times [2021-07-14 13:40:21,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:40:21,122 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983812409] [2021-07-14 13:40:21,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:40:21,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:40:21,598 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 13:40:21,598 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:40:21,599 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983812409] [2021-07-14 13:40:21,599 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983812409] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:40:21,599 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639815231] [2021-07-14 13:40:21,599 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 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:40:21,632 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-07-14 13:40:21,632 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 13:40:21,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 19 conjunts are in the unsatisfiable core [2021-07-14 13:40:21,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:40:22,609 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 13:40:22,609 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639815231] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:40:22,609 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:40:22,610 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2021-07-14 13:40:22,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892288724] [2021-07-14 13:40:22,611 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-07-14 13:40:22,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:40:22,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-07-14 13:40:22,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=990, Unknown=0, NotChecked=0, Total=1190 [2021-07-14 13:40:22,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:40:22,616 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:40:22,616 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.0) internal successors, (70), 34 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 13:40:22,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:40:22,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:40:22,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:40:23,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:40:23,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:40:23,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 13:40:23,298 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:40:23,298 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:40:23,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:40:23,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1588259703, now seen corresponding path program 4 times [2021-07-14 13:40:23,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:40:23,299 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465744207] [2021-07-14 13:40:23,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:40:23,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:40:23,876 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-14 13:40:23,876 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:40:23,876 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465744207] [2021-07-14 13:40:23,876 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465744207] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:40:23,876 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303526522] [2021-07-14 13:40:23,877 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:40:23,914 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 13:40:23,914 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 13:40:23,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 22 conjunts are in the unsatisfiable core [2021-07-14 13:40:23,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:40:25,212 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 13:40:25,213 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303526522] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:40:25,213 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:40:25,213 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 20] total 37 [2021-07-14 13:40:25,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274715200] [2021-07-14 13:40:25,214 INFO L462 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-07-14 13:40:25,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:40:25,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-07-14 13:40:25,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=1184, Unknown=0, NotChecked=0, Total=1406 [2021-07-14 13:40:25,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:40:25,215 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:40:25,215 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 38 states, 38 states have (on average 2.026315789473684) internal successors, (77), 37 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 13:40:25,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:40:25,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:40:25,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 13:40:25,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:40:25,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:40:25,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:40:25,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 13:40:25,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 13:40:25,945 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-07-14 13:40:25,945 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:40:25,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:40:25,945 INFO L82 PathProgramCache]: Analyzing trace with hash 344715323, now seen corresponding path program 5 times [2021-07-14 13:40:25,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:40:25,946 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114824237] [2021-07-14 13:40:25,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:40:25,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:40:26,583 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 13:40:26,583 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:40:26,583 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114824237] [2021-07-14 13:40:26,584 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114824237] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:40:26,584 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364891202] [2021-07-14 13:40:26,584 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 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:40:26,620 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-07-14 13:40:26,620 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 13:40:26,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 28 conjunts are in the unsatisfiable core [2021-07-14 13:40:26,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:40:28,049 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 13:40:28,049 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364891202] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:40:28,049 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:40:28,049 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 22] total 39 [2021-07-14 13:40:28,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501033887] [2021-07-14 13:40:28,050 INFO L462 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-07-14 13:40:28,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:40:28,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-07-14 13:40:28,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=236, Invalid=1324, Unknown=0, NotChecked=0, Total=1560 [2021-07-14 13:40:28,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:40:28,052 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:40:28,052 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 40 states, 40 states have (on average 2.025) internal successors, (81), 39 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 13:40:28,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:40:28,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:40:28,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 13:40:28,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 13:40:28,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:40:28,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:40:28,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:40:28,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 13:40:28,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 13:40:28,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 13:40:28,932 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-07-14 13:40:28,933 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:40:28,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:40:28,933 INFO L82 PathProgramCache]: Analyzing trace with hash -480283811, now seen corresponding path program 6 times [2021-07-14 13:40:28,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:40:28,934 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355810202] [2021-07-14 13:40:28,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:40:28,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:40:29,575 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2021-07-14 13:40:30,465 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 1 proven. 81 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-07-14 13:40:30,465 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:40:30,465 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355810202] [2021-07-14 13:40:30,465 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355810202] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:40:30,465 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347909193] [2021-07-14 13:40:30,466 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:40:30,525 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2021-07-14 13:40:30,525 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 13:40:30,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 30 conjunts are in the unsatisfiable core [2021-07-14 13:40:30,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:40:31,629 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-07-14 13:40:31,907 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2021-07-14 13:40:32,361 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 105 [2021-07-14 13:40:32,587 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-07-14 13:40:32,801 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-07-14 13:40:33,048 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-07-14 13:40:33,326 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2021-07-14 13:40:33,429 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:40:33,430 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347909193] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:40:33,430 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:40:33,430 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 26] total 43 [2021-07-14 13:40:33,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624601598] [2021-07-14 13:40:33,430 INFO L462 AbstractCegarLoop]: Interpolant automaton has 44 states [2021-07-14 13:40:33,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:40:33,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-07-14 13:40:33,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=1615, Unknown=0, NotChecked=0, Total=1892 [2021-07-14 13:40:33,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:40:33,432 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:40:33,432 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 44 states, 44 states have (on average 2.022727272727273) internal successors, (89), 43 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 13:40:33,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:40:33,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:40:33,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 13:40:33,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 13:40:33,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 13:40:33,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:40:34,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:40:34,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:40:34,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 13:40:34,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 13:40:34,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 13:40:34,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 13:40:34,424 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-07-14 13:40:34,425 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:40:34,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:40:34,425 INFO L82 PathProgramCache]: Analyzing trace with hash 2117432108, now seen corresponding path program 7 times [2021-07-14 13:40:34,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:40:34,425 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647341849] [2021-07-14 13:40:34,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:40:34,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:40:36,025 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 29 [2021-07-14 13:40:36,169 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 29 [2021-07-14 13:40:36,317 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 30 [2021-07-14 13:40:36,493 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 30 [2021-07-14 13:40:36,760 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 1 proven. 136 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-07-14 13:40:36,760 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:40:36,760 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647341849] [2021-07-14 13:40:36,760 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647341849] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:40:36,760 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081718241] [2021-07-14 13:40:36,760 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:40:36,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:40:36,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 38 conjunts are in the unsatisfiable core [2021-07-14 13:40:36,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:40:38,230 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2021-07-14 13:40:38,680 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2021-07-14 13:40:38,910 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-07-14 13:40:39,143 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-07-14 13:40:39,398 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-07-14 13:40:39,920 WARN L205 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 120 [2021-07-14 13:40:40,400 WARN L205 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 115 [2021-07-14 13:40:41,094 WARN L205 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 129 [2021-07-14 13:40:41,414 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-07-14 13:40:41,736 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-07-14 13:40:41,956 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-07-14 13:40:42,024 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:40:42,024 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2081718241] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:40:42,024 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:40:42,024 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 31] total 52 [2021-07-14 13:40:42,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392773033] [2021-07-14 13:40:42,025 INFO L462 AbstractCegarLoop]: Interpolant automaton has 53 states [2021-07-14 13:40:42,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:40:42,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-07-14 13:40:42,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=349, Invalid=2407, Unknown=0, NotChecked=0, Total=2756 [2021-07-14 13:40:42,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:40:42,026 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:40:42,027 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 53 states, 53 states have (on average 2.0377358490566038) internal successors, (108), 52 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 13:40:42,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:40:42,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:40:42,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 13:40:42,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 13:40:42,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 13:40:42,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 13:40:42,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:40:43,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:40:43,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:40:43,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 13:40:43,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 13:40:43,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 13:40:43,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 13:40:43,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-14 13:40:43,704 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:40:43,704 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:40:43,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:40:43,705 INFO L82 PathProgramCache]: Analyzing trace with hash -2133314388, now seen corresponding path program 8 times [2021-07-14 13:40:43,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:40:43,705 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432824402] [2021-07-14 13:40:43,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:40:43,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:40:44,571 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 30 [2021-07-14 13:40:45,283 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 173 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-07-14 13:40:45,283 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:40:45,283 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432824402] [2021-07-14 13:40:45,283 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432824402] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:40:45,283 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626310306] [2021-07-14 13:40:45,283 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:40:45,327 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 13:40:45,327 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 13:40:45,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 39 conjunts are in the unsatisfiable core [2021-07-14 13:40:45,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:40:46,690 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-07-14 13:40:46,899 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-07-14 13:40:47,359 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 119 [2021-07-14 13:40:47,611 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-07-14 13:40:47,882 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2021-07-14 13:40:48,131 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-07-14 13:40:48,648 WARN L205 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 118 [2021-07-14 13:40:48,927 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-07-14 13:40:49,264 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2021-07-14 13:40:49,757 WARN L205 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2021-07-14 13:40:50,194 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2021-07-14 13:40:50,716 WARN L205 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2021-07-14 13:40:51,245 WARN L205 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2021-07-14 13:40:51,385 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:40:51,385 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [626310306] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:40:51,385 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:40:51,385 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 33] total 55 [2021-07-14 13:40:51,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329808892] [2021-07-14 13:40:51,386 INFO L462 AbstractCegarLoop]: Interpolant automaton has 56 states [2021-07-14 13:40:51,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:40:51,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2021-07-14 13:40:51,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=309, Invalid=2771, Unknown=0, NotChecked=0, Total=3080 [2021-07-14 13:40:51,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:40:51,387 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:40:51,387 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 56 states, 56 states have (on average 2.017857142857143) internal successors, (113), 55 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 13:40:51,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:40:51,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:40:51,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 13:40:51,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 13:40:51,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 13:40:51,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 13:40:51,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-07-14 13:40:51,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:40:53,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:40:53,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:40:53,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 13:40:53,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 13:40:53,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 13:40:53,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 13:40:53,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-14 13:40:53,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-07-14 13:40:53,726 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable115 [2021-07-14 13:40:53,726 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:40:53,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:40:53,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1707579180, now seen corresponding path program 9 times [2021-07-14 13:40:53,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:40:53,727 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332988674] [2021-07-14 13:40:53,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:40:53,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:40:55,726 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 35 [2021-07-14 13:40:56,952 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 0 proven. 266 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:40:56,952 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:40:56,952 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332988674] [2021-07-14 13:40:56,952 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332988674] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:40:56,952 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2090450625] [2021-07-14 13:40:56,952 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 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:40:57,040 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2021-07-14 13:40:57,040 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 13:40:57,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 43 conjunts are in the unsatisfiable core [2021-07-14 13:40:57,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:40:58,982 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-07-14 13:40:59,256 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-07-14 13:40:59,819 WARN L205 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 127 [2021-07-14 13:41:00,123 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-07-14 13:41:00,430 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-07-14 13:41:00,738 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-07-14 13:41:01,424 WARN L205 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 136 [2021-07-14 13:41:02,157 WARN L205 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 137 [2021-07-14 13:41:02,910 WARN L205 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 141 [2021-07-14 13:41:03,435 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-07-14 13:41:04,694 WARN L205 SmtUtils]: Spent 814.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 194 [2021-07-14 13:41:05,304 WARN L205 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2021-07-14 13:41:05,906 WARN L205 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-07-14 13:41:06,540 WARN L205 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2021-07-14 13:41:07,246 WARN L205 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 120 [2021-07-14 13:41:07,396 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 0 proven. 266 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:41:07,396 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2090450625] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:41:07,396 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:41:07,396 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 36] total 67 [2021-07-14 13:41:07,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74265710] [2021-07-14 13:41:07,397 INFO L462 AbstractCegarLoop]: Interpolant automaton has 68 states [2021-07-14 13:41:07,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:41:07,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2021-07-14 13:41:07,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=283, Invalid=4273, Unknown=0, NotChecked=0, Total=4556 [2021-07-14 13:41:07,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:41:07,399 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:41:07,399 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 68 states, 68 states have (on average 1.9558823529411764) internal successors, (133), 67 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 13:41:07,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:41:07,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:41:07,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 13:41:07,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 13:41:07,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 13:41:07,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 13:41:07,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-07-14 13:41:07,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-07-14 13:41:07,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:41:09,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:41:09,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:41:09,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 13:41:09,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 13:41:09,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 13:41:09,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 13:41:09,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-14 13:41:09,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-07-14 13:41:09,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 13:41:09,341 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:41:09,342 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:41:09,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:41:09,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1129711128, now seen corresponding path program 10 times [2021-07-14 13:41:09,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:41:09,342 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760325549] [2021-07-14 13:41:09,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:41:09,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:41:10,360 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2021-07-14 13:41:10,511 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 21 [2021-07-14 13:41:10,915 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 56 [2021-07-14 13:41:11,044 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 35 [2021-07-14 13:41:11,430 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 37 [2021-07-14 13:41:11,975 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 1 proven. 243 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-07-14 13:41:11,976 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:41:11,976 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760325549] [2021-07-14 13:41:11,976 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760325549] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:41:11,976 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997052907] [2021-07-14 13:41:11,976 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:41:12,034 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 13:41:12,034 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 13:41:12,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 44 conjunts are in the unsatisfiable core [2021-07-14 13:41:12,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:41:13,507 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 82 [2021-07-14 13:41:14,128 WARN L205 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 140 [2021-07-14 13:41:14,865 WARN L205 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 165 [2021-07-14 13:41:16,461 WARN L205 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 234 DAG size of output: 197 [2021-07-14 13:41:17,029 WARN L205 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-07-14 13:41:17,572 WARN L205 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-07-14 13:41:18,580 WARN L205 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 185 [2021-07-14 13:41:19,761 WARN L205 SmtUtils]: Spent 801.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 186 [2021-07-14 13:41:21,219 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 206 DAG size of output: 164 [2021-07-14 13:41:21,709 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-07-14 13:41:22,560 WARN L205 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 173 [2021-07-14 13:41:23,285 WARN L205 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-07-14 13:41:23,836 WARN L205 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-07-14 13:41:24,408 WARN L205 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-07-14 13:41:25,443 WARN L205 SmtUtils]: Spent 730.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 156 [2021-07-14 13:41:25,669 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:41:25,670 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997052907] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:41:25,670 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:41:25,670 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 37] total 59 [2021-07-14 13:41:25,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257116936] [2021-07-14 13:41:25,670 INFO L462 AbstractCegarLoop]: Interpolant automaton has 60 states [2021-07-14 13:41:25,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:41:25,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2021-07-14 13:41:25,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=338, Invalid=3202, Unknown=0, NotChecked=0, Total=3540 [2021-07-14 13:41:25,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:41:25,672 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:41:25,672 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 60 states, 60 states have (on average 2.0166666666666666) internal successors, (121), 59 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 13:41:25,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:41:25,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:41:25,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 13:41:25,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 13:41:25,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 13:41:25,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 13:41:25,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-07-14 13:41:25,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-07-14 13:41:25,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-07-14 13:41:25,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:41:28,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:41:28,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:41:28,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 13:41:28,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 13:41:28,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 13:41:28,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 13:41:28,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-14 13:41:28,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-07-14 13:41:28,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 13:41:28,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-07-14 13:41:28,351 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:41:28,351 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:41:28,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:41:28,351 INFO L82 PathProgramCache]: Analyzing trace with hash -437892730, now seen corresponding path program 11 times [2021-07-14 13:41:28,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:41:28,351 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275322645] [2021-07-14 13:41:28,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:41:28,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:41:30,684 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 45 [2021-07-14 13:41:30,881 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 35 [2021-07-14 13:41:30,983 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 129 [2021-07-14 13:41:31,246 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 42 [2021-07-14 13:41:31,743 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 43 [2021-07-14 13:41:32,117 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 50 [2021-07-14 13:41:32,228 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 137 [2021-07-14 13:41:32,546 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 44 [2021-07-14 13:41:32,965 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 51 [2021-07-14 13:41:33,319 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 46 [2021-07-14 13:41:33,712 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 41 [2021-07-14 13:41:34,071 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 39 [2021-07-14 13:41:34,293 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 38 [2021-07-14 13:41:34,637 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 0 proven. 415 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:41:34,637 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:41:34,637 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275322645] [2021-07-14 13:41:34,637 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275322645] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:41:34,637 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656772692] [2021-07-14 13:41:34,638 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:41:34,713 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 19 check-sat command(s) [2021-07-14 13:41:34,713 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 13:41:34,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 47 conjunts are in the unsatisfiable core [2021-07-14 13:41:34,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:41:36,858 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 88 [2021-07-14 13:41:37,621 WARN L205 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 151 [2021-07-14 13:41:38,463 WARN L205 SmtUtils]: Spent 616.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 177 [2021-07-14 13:41:40,365 WARN L205 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 196 DAG size of output: 190 [2021-07-14 13:41:41,036 WARN L205 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-07-14 13:41:41,697 WARN L205 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-07-14 13:41:42,358 WARN L205 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-07-14 13:41:43,557 WARN L205 SmtUtils]: Spent 843.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 188 [2021-07-14 13:41:44,664 WARN L205 SmtUtils]: Spent 758.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 187 [2021-07-14 13:41:46,114 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 230 DAG size of output: 175 [2021-07-14 13:41:47,096 WARN L205 SmtUtils]: Spent 684.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 180 [2021-07-14 13:41:48,483 WARN L205 SmtUtils]: Spent 872.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 216 [2021-07-14 13:41:49,229 WARN L205 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-07-14 13:41:50,292 WARN L205 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2021-07-14 13:41:51,177 WARN L205 SmtUtils]: Spent 561.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2021-07-14 13:41:52,069 WARN L205 SmtUtils]: Spent 566.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-07-14 13:41:53,112 WARN L205 SmtUtils]: Spent 546.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-07-14 13:41:53,481 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 0 proven. 415 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:41:53,481 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1656772692] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:41:53,481 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:41:53,481 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40] total 76 [2021-07-14 13:41:53,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280632172] [2021-07-14 13:41:53,482 INFO L462 AbstractCegarLoop]: Interpolant automaton has 77 states [2021-07-14 13:41:53,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:41:53,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2021-07-14 13:41:53,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=321, Invalid=5531, Unknown=0, NotChecked=0, Total=5852 [2021-07-14 13:41:53,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:41:53,484 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:41:53,484 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 77 states, 77 states have (on average 1.9870129870129871) internal successors, (153), 76 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 13:41:53,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:41:53,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:41:53,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 13:41:53,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 13:41:53,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 13:41:53,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 13:41:53,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-07-14 13:41:53,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-07-14 13:41:53,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-07-14 13:41:53,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-07-14 13:41:53,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:41:55,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:41:55,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 13:41:55,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 13:41:55,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 13:41:55,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 13:41:55,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 13:41:55,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-14 13:41:55,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-07-14 13:41:55,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 13:41:55,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-07-14 13:41:55,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-14 13:41:55,556 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable297 [2021-07-14 13:41:55,557 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:41:55,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:41:55,562 INFO L82 PathProgramCache]: Analyzing trace with hash 1856598338, now seen corresponding path program 12 times [2021-07-14 13:41:55,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:41:55,562 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825894874] [2021-07-14 13:41:55,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:41:55,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:41:57,051 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 10 [2021-07-14 13:41:57,270 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 19 [2021-07-14 13:41:57,572 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 32 [2021-07-14 13:41:57,848 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 33 [2021-07-14 13:41:58,171 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 36 [2021-07-14 13:41:58,467 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 38 [2021-07-14 13:41:58,763 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 39 [2021-07-14 13:41:59,059 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 35 [2021-07-14 13:41:59,408 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 36 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown