/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-NewStatesSleepPersistentFixedOrder-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/min-max-2.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 15:51:52,762 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 15:51:52,764 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 15:51:52,795 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-14 15:51:52,795 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-14 15:51:52,798 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-14 15:51:52,799 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-14 15:51:52,804 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-14 15:51:52,805 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-14 15:51:52,808 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-14 15:51:52,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-14 15:51:52,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2021-07-14 15:51:52,838 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-14 15:51:52,838 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-14 15:51:52,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-14 15:51:52,840 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-NewStatesSleepPersistentFixedOrder-NoLbe.epf [2021-07-14 15:51:52,868 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 15:51:52,868 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 15:51:52,869 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 15:51:52,869 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 15:51:52,871 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 15:51:52,871 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 15:51:52,871 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 15:51:52,871 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 15:51:52,871 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 15:51:52,872 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 15:51:52,872 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 15:51:52,872 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 15:51:52,872 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 15:51:52,873 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 15:51:52,873 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 15:51:52,873 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 15:51:52,873 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 15:51:52,873 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 15:51:52,873 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 15:51:52,873 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 15:51:52,873 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 15:51:52,873 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 15:51:52,873 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 15:51:52,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 15:51:52,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 15:51:52,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 15:51:52,874 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 15:51:52,874 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 15:51:52,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 15:51:52,874 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 15:51:52,874 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 15:51:52,874 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 15:51:52,875 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-14 15:51:52,875 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 15:51:53,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 15:51:53,267 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 15:51:53,269 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 15:51:53,270 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 15:51:53,272 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 15:51:53,272 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/min-max-2.wvr.bpl [2021-07-14 15:51:53,272 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/min-max-2.wvr.bpl' [2021-07-14 15:51:53,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 15:51:53,304 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 15:51:53,305 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 15:51:53,305 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 15:51:53,305 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 15:51:53,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:51:53" (1/1) ... [2021-07-14 15:51:53,320 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:51:53" (1/1) ... [2021-07-14 15:51:53,326 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 15:51:53,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 15:51:53,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 15:51:53,329 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 15:51:53,334 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:51:53" (1/1) ... [2021-07-14 15:51:53,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:51:53" (1/1) ... [2021-07-14 15:51:53,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:51:53" (1/1) ... [2021-07-14 15:51:53,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:51:53" (1/1) ... [2021-07-14 15:51:53,346 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:51:53" (1/1) ... [2021-07-14 15:51:53,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:51:53" (1/1) ... [2021-07-14 15:51:53,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:51:53" (1/1) ... [2021-07-14 15:51:53,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 15:51:53,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 15:51:53,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 15:51:53,355 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 15:51:53,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:51:53" (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 15:51:53,431 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 15:51:53,431 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 15:51:53,431 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 15:51:53,431 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 15:51:53,431 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 15:51:53,431 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 15:51:53,431 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 15:51:53,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 15:51:53,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 15:51:53,432 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-14 15:51:53,432 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-14 15:51:53,432 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-14 15:51:53,432 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-07-14 15:51:53,432 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-07-14 15:51:53,432 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-07-14 15:51:53,432 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2021-07-14 15:51:53,432 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-07-14 15:51:53,432 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-07-14 15:51:53,433 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 15:51:53,570 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 15:51:53,570 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-14 15:51:53,572 INFO L202 PluginConnector]: Adding new model min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:51:53 BoogieIcfgContainer [2021-07-14 15:51:53,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 15:51:53,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 15:51:53,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 15:51:53,575 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 15:51:53,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:51:53" (1/2) ... [2021-07-14 15:51:53,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55af3cf5 and model type min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 03:51:53, skipping insertion in model container [2021-07-14 15:51:53,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:51:53" (2/2) ... [2021-07-14 15:51:53,577 INFO L111 eAbstractionObserver]: Analyzing ICFG min-max-2.wvr.bpl [2021-07-14 15:51:53,580 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 15:51:53,580 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 15:51:53,581 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 15:51:53,581 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 15:51:53,656 INFO L149 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2021-07-14 15:51:53,683 INFO L255 AbstractCegarLoop]: Starting to check reachability of 6 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 15:51:53,817 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 15:51:53,817 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 15:51:53,817 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 15:51:53,817 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 15:51:53,817 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 15:51:53,817 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 15:51:53,817 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 15:51:53,817 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 15:51:54,258 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-14 15:51:54,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:51:54,265 INFO L82 PathProgramCache]: Analyzing trace with hash -773404720, now seen corresponding path program 1 times [2021-07-14 15:51:54,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:51:54,271 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321250014] [2021-07-14 15:51:54,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:51:54,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:51:54,435 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 15:51:54,436 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:51:54,436 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321250014] [2021-07-14 15:51:54,436 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321250014] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:51:54,436 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [950327992] [2021-07-14 15:51:54,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 15:51:54,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:51:54,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 3 conjunts are in the unsatisfiable core [2021-07-14 15:51:54,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:51:54,600 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-14 15:51:54,600 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [950327992] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:51:54,600 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:51:54,601 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 5 [2021-07-14 15:51:54,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804019422] [2021-07-14 15:51:54,608 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-14 15:51:54,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:51:54,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-14 15:51:54,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-07-14 15:51:54,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:51:54,631 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:51:54,633 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 15:51:54,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:51:54,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:51:55,053 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-07-14 15:51:55,053 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-14 15:51:55,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:51:55,054 INFO L82 PathProgramCache]: Analyzing trace with hash 266251135, now seen corresponding path program 1 times [2021-07-14 15:51:55,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:51:55,054 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390596083] [2021-07-14 15:51:55,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:51:55,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:51:55,136 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 15:51:55,136 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:51:55,136 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390596083] [2021-07-14 15:51:55,136 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390596083] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:51:55,136 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329402630] [2021-07-14 15:51:55,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 15:51:55,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:51:55,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-14 15:51:55,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:51:55,251 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 15:51:55,251 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1329402630] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:51:55,251 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:51:55,251 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-07-14 15:51:55,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847634901] [2021-07-14 15:51:55,252 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 15:51:55,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:51:55,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 15:51:55,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-07-14 15:51:55,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:51:55,253 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:51:55,253 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 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 15:51:55,253 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:51:55,253 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:51:55,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:51:55,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:51:55,591 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 15:51:55,591 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-14 15:51:55,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:51:55,592 INFO L82 PathProgramCache]: Analyzing trace with hash 390536743, now seen corresponding path program 2 times [2021-07-14 15:51:55,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:51:55,592 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362439657] [2021-07-14 15:51:55,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:51:55,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:51:55,643 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-07-14 15:51:55,644 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:51:55,644 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362439657] [2021-07-14 15:51:55,644 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362439657] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:51:55,644 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797894920] [2021-07-14 15:51:55,644 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 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 15:51:55,696 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 15:51:55,697 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 15:51:55,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-14 15:51:55,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:51:55,774 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-07-14 15:51:55,775 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [797894920] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:51:55,775 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:51:55,775 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-07-14 15:51:55,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739418433] [2021-07-14 15:51:55,775 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 15:51:55,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:51:55,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 15:51:55,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-07-14 15:51:55,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:51:55,776 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:51:55,776 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 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 15:51:55,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:51:55,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:51:55,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:51:55,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:51:55,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:51:55,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:51:56,088 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 15:51:56,089 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-14 15:51:56,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:51:56,089 INFO L82 PathProgramCache]: Analyzing trace with hash 196026039, now seen corresponding path program 3 times [2021-07-14 15:51:56,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:51:56,089 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117991962] [2021-07-14 15:51:56,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:51:56,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:51:56,149 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-07-14 15:51:56,149 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:51:56,150 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117991962] [2021-07-14 15:51:56,150 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117991962] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:51:56,150 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168161973] [2021-07-14 15:51:56,150 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 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 15:51:56,191 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-07-14 15:51:56,191 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 15:51:56,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 6 conjunts are in the unsatisfiable core [2021-07-14 15:51:56,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:51:56,288 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-07-14 15:51:56,288 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168161973] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:51:56,289 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:51:56,289 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-07-14 15:51:56,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826130928] [2021-07-14 15:51:56,289 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-14 15:51:56,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:51:56,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-14 15:51:56,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-07-14 15:51:56,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:51:56,290 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:51:56,290 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 7 states have internal predecessors, (66), 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 15:51:56,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:51:56,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:51:56,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:51:56,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:51:56,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:51:56,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:51:56,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:51:56,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 15:51:56,655 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 15:51:56,655 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-14 15:51:56,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:51:56,656 INFO L82 PathProgramCache]: Analyzing trace with hash 637429448, now seen corresponding path program 4 times [2021-07-14 15:51:56,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:51:56,656 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549451397] [2021-07-14 15:51:56,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:51:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:51:56,706 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-07-14 15:51:56,706 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:51:56,706 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549451397] [2021-07-14 15:51:56,706 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549451397] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:51:56,706 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824312715] [2021-07-14 15:51:56,706 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 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 15:51:56,794 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 15:51:56,794 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 15:51:56,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-14 15:51:56,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:51:56,867 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-07-14 15:51:56,867 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1824312715] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:51:56,867 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:51:56,867 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-07-14 15:51:56,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799078481] [2021-07-14 15:51:56,868 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-14 15:51:56,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:51:56,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-14 15:51:56,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-07-14 15:51:56,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:51:56,868 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:51:56,869 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 15:51:56,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:51:56,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:51:56,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:51:56,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 15:51:56,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:51:57,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:51:57,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:51:57,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 15:51:57,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 15:51:57,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 15:51:57,480 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 15:51:57,481 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-14 15:51:57,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:51:57,481 INFO L82 PathProgramCache]: Analyzing trace with hash 665600148, now seen corresponding path program 5 times [2021-07-14 15:51:57,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:51:57,481 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63263930] [2021-07-14 15:51:57,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:51:57,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:51:57,609 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 5 proven. 39 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-07-14 15:51:57,610 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:51:57,610 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63263930] [2021-07-14 15:51:57,610 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63263930] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:51:57,610 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1409643348] [2021-07-14 15:51:57,610 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 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 15:51:57,696 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-07-14 15:51:57,697 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 15:51:57,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-14 15:51:57,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:51:57,880 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 37 proven. 12 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-07-14 15:51:57,880 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1409643348] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:51:57,880 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:51:57,880 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 16 [2021-07-14 15:51:57,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745636435] [2021-07-14 15:51:57,881 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-14 15:51:57,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:51:57,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-14 15:51:57,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2021-07-14 15:51:57,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:51:57,883 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:51:57,883 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 16 states have internal predecessors, (101), 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 15:51:57,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:51:57,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:51:57,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 15:51:57,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 15:51:57,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 15:51:57,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:51:58,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:51:58,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:51:58,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 15:51:58,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 15:51:58,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 15:51:58,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 15:51:58,485 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 15:51:58,486 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-14 15:51:58,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:51:58,486 INFO L82 PathProgramCache]: Analyzing trace with hash -684833609, now seen corresponding path program 6 times [2021-07-14 15:51:58,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:51:58,487 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373726041] [2021-07-14 15:51:58,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:51:58,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:51:58,543 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 12 proven. 15 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-07-14 15:51:58,543 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:51:58,543 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373726041] [2021-07-14 15:51:58,543 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373726041] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:51:58,543 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821702932] [2021-07-14 15:51:58,543 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 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 15:51:58,688 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-07-14 15:51:58,688 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 15:51:58,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 22 conjunts are in the unsatisfiable core [2021-07-14 15:51:58,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:51:58,981 INFO L354 Elim1Store]: treesize reduction 16, result has 60.0 percent of original size [2021-07-14 15:51:58,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 18 treesize of output 34 [2021-07-14 15:51:58,989 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-07-14 15:51:59,020 INFO L628 ElimStorePlain]: treesize reduction 12, result has 78.2 percent of original size [2021-07-14 15:51:59,027 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-14 15:51:59,027 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:32, output treesize:43 [2021-07-14 15:51:59,103 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 15:51:59,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2021-07-14 15:51:59,110 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-07-14 15:51:59,119 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 15:51:59,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2021-07-14 15:51:59,126 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-07-14 15:51:59,147 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 15:51:59,154 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-07-14 15:51:59,154 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:61, output treesize:103 [2021-07-14 15:51:59,499 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 14 proven. 14 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-07-14 15:51:59,499 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821702932] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:51:59,500 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:51:59,500 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 16] total 23 [2021-07-14 15:51:59,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299758657] [2021-07-14 15:51:59,500 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-07-14 15:51:59,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:51:59,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-07-14 15:51:59,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552 [2021-07-14 15:51:59,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:51:59,501 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:51:59,502 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 4.083333333333333) internal successors, (98), 23 states have internal predecessors, (98), 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 15:51:59,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:51:59,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:51:59,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 15:51:59,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 15:51:59,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 15:51:59,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 15:51:59,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:52:00,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:52:00,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:52:00,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 15:52:00,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 15:52:00,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 15:52:00,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 15:52:00,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 15:52:01,125 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-07-14 15:52:01,125 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-14 15:52:01,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:52:01,125 INFO L82 PathProgramCache]: Analyzing trace with hash -828651588, now seen corresponding path program 7 times [2021-07-14 15:52:01,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:52:01,126 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481670783] [2021-07-14 15:52:01,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:52:01,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:52:01,187 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 5 proven. 29 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-07-14 15:52:01,187 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:52:01,187 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481670783] [2021-07-14 15:52:01,188 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481670783] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:52:01,188 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [989833072] [2021-07-14 15:52:01,188 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 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 15:52:01,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:52:01,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-14 15:52:01,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:52:01,438 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 48 proven. 22 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-07-14 15:52:01,439 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [989833072] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:52:01,439 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:52:01,439 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 19 [2021-07-14 15:52:01,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391374855] [2021-07-14 15:52:01,439 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-14 15:52:01,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:52:01,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-14 15:52:01,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2021-07-14 15:52:01,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:52:01,440 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:52:01,440 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 5.0) internal successors, (100), 19 states have internal predecessors, (100), 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 15:52:01,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:52:01,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:52:01,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 15:52:01,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 15:52:01,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 15:52:01,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 15:52:01,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 15:52:01,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:52:03,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:52:03,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:52:03,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 15:52:03,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 15:52:03,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 15:52:03,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 15:52:03,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-14 15:52:03,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-14 15:52:03,945 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 15:52:03,945 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-14 15:52:03,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:52:03,946 INFO L82 PathProgramCache]: Analyzing trace with hash -177120405, now seen corresponding path program 8 times [2021-07-14 15:52:03,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:52:03,946 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624630921] [2021-07-14 15:52:03,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:52:03,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:52:04,039 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 22 proven. 70 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-07-14 15:52:04,039 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:52:04,039 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624630921] [2021-07-14 15:52:04,039 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624630921] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:52:04,039 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81487299] [2021-07-14 15:52:04,039 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 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 15:52:04,085 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 15:52:04,085 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 15:52:04,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-14 15:52:04,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:52:04,302 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 76 proven. 35 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-07-14 15:52:04,302 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81487299] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:52:04,302 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:52:04,302 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 23 [2021-07-14 15:52:04,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078482519] [2021-07-14 15:52:04,303 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-07-14 15:52:04,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:52:04,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-07-14 15:52:04,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=459, Unknown=0, NotChecked=0, Total=552 [2021-07-14 15:52:04,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:52:04,303 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:52:04,304 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 5.083333333333333) internal successors, (122), 23 states have internal predecessors, (122), 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 15:52:04,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:52:04,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:52:04,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 15:52:04,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 15:52:04,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 15:52:04,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 15:52:04,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-07-14 15:52:04,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-07-14 15:52:04,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:52:05,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:52:05,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:52:05,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 15:52:05,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 15:52:05,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 15:52:05,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 15:52:05,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-14 15:52:05,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-14 15:52:05,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 15:52:05,266 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 15:52:05,267 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-14 15:52:05,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:52:05,267 INFO L82 PathProgramCache]: Analyzing trace with hash 519826498, now seen corresponding path program 9 times [2021-07-14 15:52:05,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:52:05,268 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097841159] [2021-07-14 15:52:05,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:52:05,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:52:05,355 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 35 proven. 38 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2021-07-14 15:52:05,355 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:52:05,355 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097841159] [2021-07-14 15:52:05,355 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097841159] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:52:05,356 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866828449] [2021-07-14 15:52:05,356 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 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 15:52:05,420 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-07-14 15:52:05,420 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 15:52:05,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 15 conjunts are in the unsatisfiable core [2021-07-14 15:52:05,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:52:05,720 INFO L354 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2021-07-14 15:52:05,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 28 [2021-07-14 15:52:05,728 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-07-14 15:52:05,751 INFO L628 ElimStorePlain]: treesize reduction 10, result has 75.6 percent of original size [2021-07-14 15:52:05,757 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-14 15:52:05,758 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:24, output treesize:31 [2021-07-14 15:52:05,921 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 15:52:05,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2021-07-14 15:52:05,927 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-07-14 15:52:05,934 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 15:52:05,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2021-07-14 15:52:05,939 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-07-14 15:52:05,957 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 15:52:05,963 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-07-14 15:52:05,963 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:51, output treesize:97 [2021-07-14 15:52:06,172 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 42 proven. 25 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2021-07-14 15:52:06,173 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1866828449] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:52:06,173 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:52:06,173 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 24 [2021-07-14 15:52:06,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68034752] [2021-07-14 15:52:06,173 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-07-14 15:52:06,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:52:06,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-07-14 15:52:06,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=474, Unknown=0, NotChecked=0, Total=552 [2021-07-14 15:52:06,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:52:06,175 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:52:06,175 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 4.666666666666667) internal successors, (112), 24 states have internal predecessors, (112), 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 15:52:06,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:52:06,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:52:06,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 15:52:06,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 15:52:06,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 15:52:06,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 15:52:06,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-07-14 15:52:06,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-07-14 15:52:06,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 15:52:06,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:52:13,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:52:13,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:52:13,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 15:52:13,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 15:52:13,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 15:52:13,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-14 15:52:13,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-14 15:52:13,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-14 15:52:13,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-14 15:52:13,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2021-07-14 15:52:13,828 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-07-14 15:52:13,829 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-14 15:52:13,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:52:13,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1201400698, now seen corresponding path program 10 times [2021-07-14 15:52:13,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:52:13,829 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761394822] [2021-07-14 15:52:13,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:52:13,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:52:13,928 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 22 proven. 64 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2021-07-14 15:52:13,929 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:52:13,929 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761394822] [2021-07-14 15:52:13,929 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761394822] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:52:13,929 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492942700] [2021-07-14 15:52:13,929 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 15:52:14,046 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 15:52:14,047 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 15:52:14,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 15 conjunts are in the unsatisfiable core [2021-07-14 15:52:14,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:52:14,309 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 165 proven. 51 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2021-07-14 15:52:14,309 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1492942700] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:52:14,309 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:52:14,309 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 27 [2021-07-14 15:52:14,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659400758] [2021-07-14 15:52:14,310 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-14 15:52:14,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:52:14,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-14 15:52:14,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=636, Unknown=0, NotChecked=0, Total=756 [2021-07-14 15:52:14,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:52:14,310 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:52:14,311 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.607142857142857) internal successors, (129), 27 states have internal predecessors, (129), 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 15:52:14,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:52:14,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:52:14,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 15:52:14,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 15:52:14,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 15:52:14,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-14 15:52:14,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-07-14 15:52:14,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-07-14 15:52:14,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-07-14 15:52:14,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 161 states. [2021-07-14 15:52:14,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:52:22,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:52:22,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:52:22,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 15:52:22,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 15:52:22,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 15:52:22,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-14 15:52:22,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-14 15:52:22,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-14 15:52:22,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-14 15:52:22,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 244 states. [2021-07-14 15:52:22,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-07-14 15:52:22,250 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 15:52:22,250 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-14 15:52:22,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:52:22,250 INFO L82 PathProgramCache]: Analyzing trace with hash 974379412, now seen corresponding path program 11 times [2021-07-14 15:52:22,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:52:22,250 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483975938] [2021-07-14 15:52:22,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:52:22,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:52:22,414 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 51 proven. 98 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-07-14 15:52:22,415 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:52:22,415 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483975938] [2021-07-14 15:52:22,415 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483975938] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:52:22,415 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [888439360] [2021-07-14 15:52:22,415 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 15:52:22,619 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2021-07-14 15:52:22,619 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 15:52:22,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-14 15:52:22,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:52:22,943 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 123 proven. 70 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-07-14 15:52:22,943 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [888439360] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:52:22,944 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:52:22,944 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 17] total 30 [2021-07-14 15:52:22,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951627988] [2021-07-14 15:52:22,944 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-07-14 15:52:22,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:52:22,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-07-14 15:52:22,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=779, Unknown=0, NotChecked=0, Total=930 [2021-07-14 15:52:22,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:52:22,945 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:52:22,945 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 4.516129032258065) internal successors, (140), 30 states have internal predecessors, (140), 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 15:52:22,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:52:22,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:52:22,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 15:52:22,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 15:52:22,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 15:52:22,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-14 15:52:22,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-07-14 15:52:22,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-07-14 15:52:22,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-14 15:52:22,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 244 states. [2021-07-14 15:52:22,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-07-14 15:52:22,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:52:24,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:52:24,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:52:24,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 15:52:24,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 15:52:24,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 15:52:24,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-14 15:52:24,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-14 15:52:24,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-14 15:52:24,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-14 15:52:24,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 244 states. [2021-07-14 15:52:24,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-07-14 15:52:24,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-07-14 15:52:25,137 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2021-07-14 15:52:25,138 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-14 15:52:25,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:52:25,138 INFO L82 PathProgramCache]: Analyzing trace with hash -578971258, now seen corresponding path program 12 times [2021-07-14 15:52:25,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:52:25,138 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621293975] [2021-07-14 15:52:25,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:52:25,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:52:25,291 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 51 proven. 324 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-07-14 15:52:25,292 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:52:25,292 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621293975] [2021-07-14 15:52:25,292 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621293975] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:52:25,292 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316291313] [2021-07-14 15:52:25,292 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 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 15:52:25,370 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2021-07-14 15:52:25,370 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 15:52:25,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 19 conjunts are in the unsatisfiable core [2021-07-14 15:52:25,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:52:25,808 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 117 proven. 232 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2021-07-14 15:52:25,808 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [316291313] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:52:25,808 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:52:25,808 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18] total 34 [2021-07-14 15:52:25,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415233095] [2021-07-14 15:52:25,809 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-07-14 15:52:25,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:52:25,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-07-14 15:52:25,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=1008, Unknown=0, NotChecked=0, Total=1190 [2021-07-14 15:52:25,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:52:25,810 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:52:25,810 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 4.828571428571428) internal successors, (169), 34 states have internal predecessors, (169), 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 15:52:25,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:52:25,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:52:25,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 15:52:25,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 15:52:25,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 15:52:25,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-14 15:52:25,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-07-14 15:52:25,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-07-14 15:52:25,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-14 15:52:25,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 244 states. [2021-07-14 15:52:25,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-07-14 15:52:25,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-07-14 15:52:25,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:52:27,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:52:27,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:52:27,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 15:52:27,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 15:52:27,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 15:52:27,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-14 15:52:27,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-14 15:52:27,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-14 15:52:27,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-14 15:52:27,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 247 states. [2021-07-14 15:52:27,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-07-14 15:52:27,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-07-14 15:52:27,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-07-14 15:52:27,693 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 15:52:27,693 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-14 15:52:27,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:52:27,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1920177479, now seen corresponding path program 13 times [2021-07-14 15:52:27,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:52:27,694 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352054521] [2021-07-14 15:52:27,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:52:27,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:52:28,061 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 262 proven. 120 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2021-07-14 15:52:28,061 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:52:28,062 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352054521] [2021-07-14 15:52:28,062 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352054521] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:52:28,062 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701965312] [2021-07-14 15:52:28,062 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 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 15:52:28,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:52:28,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 19 conjunts are in the unsatisfiable core [2021-07-14 15:52:28,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:52:28,617 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 142 proven. 92 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2021-07-14 15:52:28,617 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701965312] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:52:28,618 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:52:28,618 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 19] total 48 [2021-07-14 15:52:28,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94693921] [2021-07-14 15:52:28,618 INFO L462 AbstractCegarLoop]: Interpolant automaton has 49 states [2021-07-14 15:52:28,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:52:28,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-07-14 15:52:28,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=2050, Unknown=0, NotChecked=0, Total=2352 [2021-07-14 15:52:28,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:52:28,620 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:52:28,620 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 49 states, 49 states have (on average 3.795918367346939) internal successors, (186), 48 states have internal predecessors, (186), 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 15:52:28,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:52:28,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:52:28,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 15:52:28,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 15:52:28,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 15:52:28,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-14 15:52:28,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-07-14 15:52:28,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-07-14 15:52:28,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-14 15:52:28,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 247 states. [2021-07-14 15:52:28,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-07-14 15:52:28,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-07-14 15:52:28,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-07-14 15:52:28,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:52:29,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:52:29,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:52:29,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 15:52:29,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 15:52:29,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 15:52:29,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-14 15:52:29,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-14 15:52:29,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-14 15:52:29,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-14 15:52:29,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 247 states. [2021-07-14 15:52:29,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-07-14 15:52:29,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-07-14 15:52:29,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-07-14 15:52:29,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-14 15:52:29,608 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-07-14 15:52:29,609 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-14 15:52:29,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:52:29,609 INFO L82 PathProgramCache]: Analyzing trace with hash -249269107, now seen corresponding path program 14 times [2021-07-14 15:52:29,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:52:29,610 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476837424] [2021-07-14 15:52:29,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:52:29,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:52:29,808 INFO L134 CoverageAnalysis]: Checked inductivity of 583 backedges. 117 proven. 226 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2021-07-14 15:52:29,808 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:52:29,809 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476837424] [2021-07-14 15:52:29,809 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476837424] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:52:29,809 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604486464] [2021-07-14 15:52:29,809 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 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 15:52:29,906 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 15:52:29,906 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 15:52:29,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 23 conjunts are in the unsatisfiable core [2021-07-14 15:52:29,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:52:30,352 INFO L134 CoverageAnalysis]: Checked inductivity of 583 backedges. 186 proven. 173 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2021-07-14 15:52:30,352 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604486464] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:52:30,352 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:52:30,352 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 14] total 35 [2021-07-14 15:52:30,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721332650] [2021-07-14 15:52:30,353 INFO L462 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-07-14 15:52:30,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:52:30,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-07-14 15:52:30,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=218, Invalid=1042, Unknown=0, NotChecked=0, Total=1260 [2021-07-14 15:52:30,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:52:30,370 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:52:30,370 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 5.0) internal successors, (180), 35 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 15:52:30,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:52:30,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:52:30,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 15:52:30,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 15:52:30,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 15:52:30,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-14 15:52:30,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-07-14 15:52:30,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-07-14 15:52:30,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-14 15:52:30,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 247 states. [2021-07-14 15:52:30,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-07-14 15:52:30,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-07-14 15:52:30,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-07-14 15:52:30,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-07-14 15:52:30,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:52:32,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:52:32,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:52:32,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 15:52:32,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 15:52:32,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 15:52:32,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-14 15:52:32,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-14 15:52:32,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-14 15:52:32,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-14 15:52:32,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 247 states. [2021-07-14 15:52:32,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-07-14 15:52:32,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-07-14 15:52:32,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-07-14 15:52:32,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-14 15:52:32,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-07-14 15:52:32,359 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 15:52:32,359 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-14 15:52:32,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:52:32,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1901801977, now seen corresponding path program 15 times [2021-07-14 15:52:32,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:52:32,360 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363594151] [2021-07-14 15:52:32,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:52:32,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:54:27,148 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 12 [2021-07-14 15:54:27,830 WARN L205 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 17 [2021-07-14 15:54:29,057 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 91 DAG size of output: 3 [2021-07-14 15:55:33,830 WARN L205 SmtUtils]: Spent 1.08 m on a formula simplification. DAG size of input: 138 DAG size of output: 10 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown