/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sorted.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-17 00:59:46,217 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-17 00:59:46,220 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-17 00:59:46,259 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-17 00:59:46,323 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Random42.epf [2021-06-17 00:59:46,362 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-17 00:59:46,362 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-17 00:59:46,363 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-17 00:59:46,363 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-17 00:59:46,365 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-17 00:59:46,365 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-17 00:59:46,366 INFO L138 SettingsManager]: * Use SBE=true [2021-06-17 00:59:46,366 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-17 00:59:46,366 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-17 00:59:46,366 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-17 00:59:46,367 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-17 00:59:46,367 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-17 00:59:46,367 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-17 00:59:46,367 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-17 00:59:46,368 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-17 00:59:46,368 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-17 00:59:46,368 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-17 00:59:46,368 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-17 00:59:46,368 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-17 00:59:46,368 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-17 00:59:46,368 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-17 00:59:46,369 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-17 00:59:46,369 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-17 00:59:46,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-17 00:59:46,369 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-17 00:59:46,369 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-17 00:59:46,369 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-17 00:59:46,369 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-17 00:59:46,370 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-17 00:59:46,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-17 00:59:46,370 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-17 00:59:46,370 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-17 00:59:46,370 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-17 00:59:46,370 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-17 00:59:46,371 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-17 00:59:46,371 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-17 00:59:46,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-17 00:59:46,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-17 00:59:46,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-17 00:59:46,680 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-17 00:59:46,681 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-17 00:59:46,681 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sorted.wvr.bpl [2021-06-17 00:59:46,682 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sorted.wvr.bpl' [2021-06-17 00:59:46,705 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-17 00:59:46,707 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-17 00:59:46,711 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-17 00:59:46,711 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-17 00:59:46,712 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-17 00:59:46,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 12:59:46" (1/1) ... [2021-06-17 00:59:46,728 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 12:59:46" (1/1) ... [2021-06-17 00:59:46,737 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-17 00:59:46,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-17 00:59:46,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-17 00:59:46,739 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-17 00:59:46,745 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 12:59:46" (1/1) ... [2021-06-17 00:59:46,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 12:59:46" (1/1) ... [2021-06-17 00:59:46,746 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 12:59:46" (1/1) ... [2021-06-17 00:59:46,746 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 12:59:46" (1/1) ... [2021-06-17 00:59:46,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 12:59:46" (1/1) ... [2021-06-17 00:59:46,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 12:59:46" (1/1) ... [2021-06-17 00:59:46,753 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 12:59:46" (1/1) ... [2021-06-17 00:59:46,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-17 00:59:46,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-17 00:59:46,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-17 00:59:46,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-17 00:59:46,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 12:59:46" (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 [2021-06-17 00:59:46,835 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-17 00:59:46,835 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-17 00:59:46,835 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-17 00:59:46,835 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-17 00:59:46,836 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-17 00:59:46,836 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-17 00:59:46,836 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-17 00:59:46,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-17 00:59:46,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-17 00:59:46,837 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-17 00:59:46,837 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-17 00:59:46,837 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-17 00:59:46,838 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-17 00:59:47,046 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-17 00:59:47,046 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-17 00:59:47,048 INFO L202 PluginConnector]: Adding new model sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 12:59:47 BoogieIcfgContainer [2021-06-17 00:59:47,048 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-17 00:59:47,050 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-17 00:59:47,050 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-17 00:59:47,052 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-17 00:59:47,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 12:59:46" (1/2) ... [2021-06-17 00:59:47,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64005b2b and model type sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.06 12:59:47, skipping insertion in model container [2021-06-17 00:59:47,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 12:59:47" (2/2) ... [2021-06-17 00:59:47,054 INFO L111 eAbstractionObserver]: Analyzing ICFG sorted.wvr.bpl [2021-06-17 00:59:47,059 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-17 00:59:47,059 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-17 00:59:47,060 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-17 00:59:47,060 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-17 00:59:47,095 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-17 00:59:47,129 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-17 00:59:47,174 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-17 00:59:47,175 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-17 00:59:47,175 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-17 00:59:47,175 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-17 00:59:47,175 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-17 00:59:47,175 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-17 00:59:47,175 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-17 00:59:47,175 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-17 00:59:47,211 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 00:59:47,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 00:59:47,224 INFO L82 PathProgramCache]: Analyzing trace with hash -432198260, now seen corresponding path program 1 times [2021-06-17 00:59:47,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 00:59:47,232 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259665999] [2021-06-17 00:59:47,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 00:59:47,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 00:59:47,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 00:59:47,469 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 00:59:47,469 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259665999] [2021-06-17 00:59:47,470 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259665999] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-17 00:59:47,470 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-17 00:59:47,470 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-17 00:59:47,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029533257] [2021-06-17 00:59:47,478 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-17 00:59:47,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 00:59:47,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-17 00:59:47,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-17 00:59:47,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 00:59:47,501 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 00:59:47,503 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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) [2021-06-17 00:59:47,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 00:59:47,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 00:59:47,558 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-17 00:59:47,558 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 00:59:47,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 00:59:47,562 INFO L82 PathProgramCache]: Analyzing trace with hash 1868377002, now seen corresponding path program 1 times [2021-06-17 00:59:47,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 00:59:47,562 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828726188] [2021-06-17 00:59:47,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 00:59:47,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 00:59:47,678 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 00:59:47,679 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 00:59:47,679 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828726188] [2021-06-17 00:59:47,679 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828726188] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-17 00:59:47,679 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-17 00:59:47,680 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-17 00:59:47,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045180054] [2021-06-17 00:59:47,682 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-17 00:59:47,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 00:59:47,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-17 00:59:47,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-17 00:59:47,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 00:59:47,685 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 00:59:47,686 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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) [2021-06-17 00:59:47,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 00:59:47,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 00:59:47,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 00:59:47,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 00:59:47,763 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-17 00:59:47,763 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 00:59:47,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 00:59:47,763 INFO L82 PathProgramCache]: Analyzing trace with hash -632398738, now seen corresponding path program 1 times [2021-06-17 00:59:47,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 00:59:47,764 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781301496] [2021-06-17 00:59:47,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 00:59:47,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 00:59:47,855 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 00:59:47,856 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 00:59:47,856 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781301496] [2021-06-17 00:59:47,856 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781301496] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-17 00:59:47,856 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-17 00:59:47,856 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-17 00:59:47,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898439302] [2021-06-17 00:59:47,857 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-17 00:59:47,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 00:59:47,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-17 00:59:47,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-06-17 00:59:47,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 00:59:47,858 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 00:59:47,858 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 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) [2021-06-17 00:59:47,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 00:59:47,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 00:59:47,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 00:59:48,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 00:59:48,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 00:59:48,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 00:59:48,057 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-17 00:59:48,057 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 00:59:48,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 00:59:48,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1660274062, now seen corresponding path program 1 times [2021-06-17 00:59:48,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 00:59:48,059 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906001290] [2021-06-17 00:59:48,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 00:59:48,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 00:59:48,174 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 00:59:48,174 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 00:59:48,174 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906001290] [2021-06-17 00:59:48,174 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906001290] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 00:59:48,174 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2113478807] [2021-06-17 00:59:48,174 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 [2021-06-17 00:59:48,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 00:59:48,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 6 conjunts are in the unsatisfiable core [2021-06-17 00:59:48,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 00:59:48,344 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 00:59:48,345 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2113478807] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 00:59:48,345 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 00:59:48,345 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 10 [2021-06-17 00:59:48,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172760185] [2021-06-17 00:59:48,346 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-17 00:59:48,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 00:59:48,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-17 00:59:48,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-06-17 00:59:48,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 00:59:48,347 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 00:59:48,347 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 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) [2021-06-17 00:59:48,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 00:59:48,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 00:59:48,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 00:59:48,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 00:59:48,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 00:59:48,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 00:59:48,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 00:59:48,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 00:59:48,767 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 00:59:48,768 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 00:59:48,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 00:59:48,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1462778948, now seen corresponding path program 2 times [2021-06-17 00:59:48,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 00:59:48,768 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367237918] [2021-06-17 00:59:48,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 00:59:48,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 00:59:49,540 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 00:59:49,541 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 00:59:49,541 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367237918] [2021-06-17 00:59:49,541 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367237918] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 00:59:49,541 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103690064] [2021-06-17 00:59:49,541 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 00:59:49,596 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 00:59:49,596 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 00:59:49,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 23 conjunts are in the unsatisfiable core [2021-06-17 00:59:49,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 00:59:50,644 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 00:59:50,645 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2103690064] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 00:59:50,646 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 00:59:50,646 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 13] total 27 [2021-06-17 00:59:50,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135232513] [2021-06-17 00:59:50,646 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-17 00:59:50,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 00:59:50,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-17 00:59:50,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=582, Unknown=0, NotChecked=0, Total=702 [2021-06-17 00:59:50,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 00:59:50,649 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 00:59:50,649 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 1.8518518518518519) internal successors, (50), 27 states have internal predecessors, (50), 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) [2021-06-17 00:59:50,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 00:59:50,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 00:59:50,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 00:59:50,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 00:59:50,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 00:59:51,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 00:59:51,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 00:59:51,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 00:59:51,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 00:59:51,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 00:59:51,809 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 00:59:51,809 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 00:59:51,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 00:59:51,810 INFO L82 PathProgramCache]: Analyzing trace with hash -429157730, now seen corresponding path program 3 times [2021-06-17 00:59:51,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 00:59:51,810 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556261518] [2021-06-17 00:59:51,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 00:59:51,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 00:59:51,903 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 00:59:51,904 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 00:59:51,904 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556261518] [2021-06-17 00:59:51,904 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556261518] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 00:59:51,904 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028954497] [2021-06-17 00:59:51,904 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 00:59:51,945 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-06-17 00:59:51,945 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 00:59:51,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-17 00:59:51,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 00:59:52,068 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 00:59:52,068 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1028954497] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 00:59:52,069 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 00:59:52,070 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2021-06-17 00:59:52,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231508017] [2021-06-17 00:59:52,071 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-17 00:59:52,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 00:59:52,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-17 00:59:52,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-06-17 00:59:52,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 00:59:52,071 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 00:59:52,072 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 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) [2021-06-17 00:59:52,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 00:59:52,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 00:59:52,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 00:59:52,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 00:59:52,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 00:59:52,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 00:59:52,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 00:59:52,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 00:59:52,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 00:59:52,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 00:59:52,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 00:59:52,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-17 00:59:52,532 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 00:59:52,533 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 00:59:52,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 00:59:52,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1594469308, now seen corresponding path program 4 times [2021-06-17 00:59:52,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 00:59:52,534 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283687526] [2021-06-17 00:59:52,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 00:59:52,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 00:59:53,395 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 00:59:53,395 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 00:59:53,396 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283687526] [2021-06-17 00:59:53,396 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283687526] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 00:59:53,396 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175805969] [2021-06-17 00:59:53,396 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 00:59:53,427 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-17 00:59:53,427 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 00:59:53,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 26 conjunts are in the unsatisfiable core [2021-06-17 00:59:53,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 00:59:54,112 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2021-06-17 00:59:54,767 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 80 [2021-06-17 00:59:54,921 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 00:59:54,924 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [175805969] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 00:59:54,924 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 00:59:54,924 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15] total 31 [2021-06-17 00:59:54,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451303507] [2021-06-17 00:59:54,928 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-17 00:59:54,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 00:59:54,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-17 00:59:54,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=816, Unknown=0, NotChecked=0, Total=930 [2021-06-17 00:59:54,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 00:59:54,930 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 00:59:54,930 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 1.8709677419354838) internal successors, (58), 31 states have internal predecessors, (58), 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) [2021-06-17 00:59:54,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 00:59:54,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 00:59:54,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 00:59:54,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 00:59:54,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 00:59:54,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-17 00:59:54,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 00:59:55,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 00:59:55,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 00:59:55,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 00:59:55,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 00:59:55,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 00:59:55,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-17 00:59:55,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-17 00:59:56,092 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-06-17 00:59:56,093 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 00:59:56,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 00:59:56,094 INFO L82 PathProgramCache]: Analyzing trace with hash -1166067298, now seen corresponding path program 5 times [2021-06-17 00:59:56,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 00:59:56,094 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159909765] [2021-06-17 00:59:56,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 00:59:56,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 00:59:56,194 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 00:59:56,195 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 00:59:56,195 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159909765] [2021-06-17 00:59:56,195 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159909765] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 00:59:56,195 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [480009923] [2021-06-17 00:59:56,196 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 00:59:56,243 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-06-17 00:59:56,243 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 00:59:56,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-17 00:59:56,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 00:59:56,374 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 00:59:56,375 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [480009923] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 00:59:56,375 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 00:59:56,375 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2021-06-17 00:59:56,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312790660] [2021-06-17 00:59:56,376 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-17 00:59:56,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 00:59:56,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-17 00:59:56,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2021-06-17 00:59:56,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 00:59:56,376 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 00:59:56,377 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 15 states have internal predecessors, (49), 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) [2021-06-17 00:59:56,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 00:59:56,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 00:59:56,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 00:59:56,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 00:59:56,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 00:59:56,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-17 00:59:56,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-17 00:59:56,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 00:59:56,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 00:59:56,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 00:59:56,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 00:59:56,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 00:59:56,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 00:59:56,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-17 00:59:56,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-17 00:59:56,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-17 00:59:56,880 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 00:59:56,881 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 00:59:56,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 00:59:56,881 INFO L82 PathProgramCache]: Analyzing trace with hash 2093978300, now seen corresponding path program 6 times [2021-06-17 00:59:56,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 00:59:56,882 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011632015] [2021-06-17 00:59:56,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 00:59:56,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 00:59:57,833 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 00:59:57,834 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 00:59:57,836 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011632015] [2021-06-17 00:59:57,836 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011632015] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 00:59:57,836 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009372736] [2021-06-17 00:59:57,836 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 00:59:57,871 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-06-17 00:59:57,872 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 00:59:57,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 33 conjunts are in the unsatisfiable core [2021-06-17 00:59:57,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 01:00:22,863 WARN L205 SmtUtils]: Spent 24.34 s on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2021-06-17 01:00:47,413 WARN L205 SmtUtils]: Spent 23.98 s on a formula simplification. DAG size of input: 117 DAG size of output: 110 [2021-06-17 01:01:03,956 WARN L205 SmtUtils]: Spent 16.31 s on a formula simplification. DAG size of input: 119 DAG size of output: 105 [2021-06-17 01:01:04,234 INFO L446 ElimStorePlain]: Different costs {5=[v_prenex_70, v_prenex_64, v_prenex_69, v_prenex_68, v_prenex_67, v_prenex_66], 11=[A, v_prenex_65]} [2021-06-17 01:01:04,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:04,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:04,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:04,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:04,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:04,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-06-17 01:01:04,265 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 01:01:04,454 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2021-06-17 01:01:04,460 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 01:01:04,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:04,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:04,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:04,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:04,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:04,474 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-06-17 01:01:04,476 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 01:01:04,651 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2021-06-17 01:01:04,651 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 01:01:04,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:04,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:04,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:04,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:04,672 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 01:01:04,672 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 15 [2021-06-17 01:01:04,674 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-17 01:01:04,845 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-06-17 01:01:04,845 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 01:01:04,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:04,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:04,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:04,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:04,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:04,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-06-17 01:01:04,860 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-17 01:01:05,045 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-06-17 01:01:05,045 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 01:01:05,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,062 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 01:01:05,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 15 [2021-06-17 01:01:05,064 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-17 01:01:05,223 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-06-17 01:01:05,223 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 01:01:05,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-06-17 01:01:05,234 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-17 01:01:05,374 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-06-17 01:01:05,374 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 01:01:05,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,418 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 01:01:05,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 42 [2021-06-17 01:01:05,429 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-06-17 01:01:05,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,458 INFO L354 Elim1Store]: treesize reduction 12, result has 55.6 percent of original size [2021-06-17 01:01:05,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 30 [2021-06-17 01:01:05,460 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-06-17 01:01:05,688 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 73 [2021-06-17 01:01:05,689 INFO L628 ElimStorePlain]: treesize reduction 2, result has 99.2 percent of original size [2021-06-17 01:01:05,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,735 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 01:01:05,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 42 [2021-06-17 01:01:05,751 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-06-17 01:01:05,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:01:05,780 INFO L354 Elim1Store]: treesize reduction 14, result has 48.1 percent of original size [2021-06-17 01:01:05,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 28 [2021-06-17 01:01:05,783 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-06-17 01:01:05,983 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 60 [2021-06-17 01:01:05,984 INFO L628 ElimStorePlain]: treesize reduction 1, result has 99.4 percent of original size [2021-06-17 01:01:06,010 INFO L550 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 8 dim-1 vars, End of recursive call: and 6 xjuncts. [2021-06-17 01:01:06,010 INFO L247 ElimStorePlain]: Needed 11 recursive calls to eliminate 16 variables, input treesize:414, output treesize:73 [2021-06-17 01:01:06,143 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 01:01:06,144 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009372736] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:01:06,144 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 01:01:06,144 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 18] total 36 [2021-06-17 01:01:06,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529544315] [2021-06-17 01:01:06,145 INFO L462 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-06-17 01:01:06,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 01:01:06,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-06-17 01:01:06,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=1098, Unknown=0, NotChecked=0, Total=1260 [2021-06-17 01:01:06,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:01:06,147 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 01:01:06,147 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 1.8333333333333333) internal successors, (66), 36 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) [2021-06-17 01:01:06,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:01:06,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 01:01:06,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 01:01:06,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 01:01:06,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 01:01:06,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-17 01:01:06,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-17 01:01:06,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-17 01:01:06,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:01:06,633 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 54 [2021-06-17 01:01:06,876 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2021-06-17 01:01:07,483 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 57 [2021-06-17 01:01:08,097 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 57 [2021-06-17 01:01:08,780 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2021-06-17 01:01:09,152 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 54 [2021-06-17 01:01:09,303 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 57 [2021-06-17 01:01:09,502 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 57 [2021-06-17 01:01:09,743 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 96 [2021-06-17 01:01:09,924 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 77 [2021-06-17 01:01:10,083 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2021-06-17 01:01:10,391 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-06-17 01:01:10,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:01:10,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 01:01:10,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 01:01:10,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 01:01:10,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 01:01:10,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-17 01:01:10,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-17 01:01:10,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-17 01:01:10,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-17 01:01:10,721 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-06-17 01:01:10,721 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 01:01:10,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 01:01:10,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1120012258, now seen corresponding path program 7 times [2021-06-17 01:01:10,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 01:01:10,722 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433401426] [2021-06-17 01:01:10,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 01:01:10,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 01:01:10,834 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 16 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 01:01:10,834 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 01:01:10,834 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433401426] [2021-06-17 01:01:10,834 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433401426] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:01:10,834 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894270898] [2021-06-17 01:01:10,834 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 01:01:10,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 01:01:10,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 14 conjunts are in the unsatisfiable core [2021-06-17 01:01:10,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 01:01:11,083 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 25 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 01:01:11,084 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894270898] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:01:11,084 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 01:01:11,084 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 22 [2021-06-17 01:01:11,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551789292] [2021-06-17 01:01:11,084 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-06-17 01:01:11,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 01:01:11,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-06-17 01:01:11,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2021-06-17 01:01:11,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:01:11,085 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 01:01:11,085 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 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) [2021-06-17 01:01:11,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:01:11,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 01:01:11,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 01:01:11,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 01:01:11,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 01:01:11,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-17 01:01:11,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-17 01:01:11,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-17 01:01:11,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-06-17 01:01:11,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:01:11,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:01:11,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 01:01:11,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 01:01:11,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 01:01:11,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 01:01:11,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-17 01:01:11,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-17 01:01:11,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-17 01:01:11,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-17 01:01:11,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 01:01:11,668 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2021-06-17 01:01:11,669 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 01:01:11,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 01:01:11,669 INFO L82 PathProgramCache]: Analyzing trace with hash -6823936, now seen corresponding path program 8 times [2021-06-17 01:01:11,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 01:01:11,669 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465360553] [2021-06-17 01:01:11,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 01:01:11,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 01:01:11,817 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 16 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 01:01:11,817 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 01:01:11,817 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465360553] [2021-06-17 01:01:11,817 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465360553] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:01:11,817 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507767747] [2021-06-17 01:01:11,817 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 01:01:11,852 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 01:01:11,853 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 01:01:11,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-17 01:01:11,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 01:01:12,088 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 25 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 01:01:12,089 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507767747] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:01:12,089 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 01:01:12,089 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 23 [2021-06-17 01:01:12,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363725083] [2021-06-17 01:01:12,089 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-06-17 01:01:12,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 01:01:12,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-06-17 01:01:12,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=398, Unknown=0, NotChecked=0, Total=506 [2021-06-17 01:01:12,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:01:12,090 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 01:01:12,090 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.8260869565217392) internal successors, (65), 23 states have internal predecessors, (65), 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) [2021-06-17 01:01:12,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:01:12,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 01:01:12,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 01:01:12,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 01:01:12,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 01:01:12,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-17 01:01:12,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-17 01:01:12,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-17 01:01:12,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-06-17 01:01:12,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-17 01:01:12,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:01:12,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:01:12,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 01:01:12,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 01:01:12,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 01:01:12,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 01:01:12,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-17 01:01:12,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-17 01:01:12,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-17 01:01:12,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-17 01:01:12,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 01:01:12,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 01:01:12,708 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 01:01:12,709 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 01:01:12,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 01:01:12,709 INFO L82 PathProgramCache]: Analyzing trace with hash -564647778, now seen corresponding path program 9 times [2021-06-17 01:01:12,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 01:01:12,709 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880769289] [2021-06-17 01:01:12,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 01:01:12,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 01:01:12,856 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 16 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 01:01:12,856 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 01:01:12,857 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880769289] [2021-06-17 01:01:12,857 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880769289] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:01:12,857 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464981167] [2021-06-17 01:01:12,857 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 01:01:12,900 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-06-17 01:01:12,900 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 01:01:12,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 16 conjunts are in the unsatisfiable core [2021-06-17 01:01:12,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 01:01:13,101 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 25 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 01:01:13,102 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [464981167] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:01:13,102 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 01:01:13,102 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 24 [2021-06-17 01:01:13,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740028898] [2021-06-17 01:01:13,102 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-06-17 01:01:13,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 01:01:13,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-06-17 01:01:13,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=436, Unknown=0, NotChecked=0, Total=552 [2021-06-17 01:01:13,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:01:13,103 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 01:01:13,103 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 2.7916666666666665) internal successors, (67), 24 states have internal predecessors, (67), 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) [2021-06-17 01:01:13,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:01:13,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 01:01:13,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 01:01:13,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 01:01:13,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 01:01:13,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-17 01:01:13,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-17 01:01:13,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-17 01:01:13,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-06-17 01:01:13,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-17 01:01:13,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-17 01:01:13,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:01:13,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:01:13,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 01:01:13,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 01:01:13,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 01:01:13,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 01:01:13,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-17 01:01:13,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-17 01:01:13,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-17 01:01:13,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-17 01:01:13,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 01:01:13,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 01:01:13,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 01:01:13,867 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 01:01:13,867 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 01:01:13,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 01:01:13,868 INFO L82 PathProgramCache]: Analyzing trace with hash 237552060, now seen corresponding path program 10 times [2021-06-17 01:01:13,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 01:01:13,868 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622824506] [2021-06-17 01:01:13,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 01:01:13,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 01:01:14,974 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2021-06-17 01:01:15,767 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 9 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 01:01:15,767 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 01:01:15,768 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622824506] [2021-06-17 01:01:15,768 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622824506] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:01:15,768 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972756116] [2021-06-17 01:01:15,768 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 01:01:15,820 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-17 01:01:15,820 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 01:01:15,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 50 conjunts are in the unsatisfiable core [2021-06-17 01:01:15,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 01:01:17,581 WARN L205 SmtUtils]: Spent 586.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2021-06-17 01:01:19,065 WARN L205 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 302 DAG size of output: 181 [2021-06-17 01:01:20,168 WARN L205 SmtUtils]: Spent 695.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 185 [2021-06-17 01:01:21,214 WARN L205 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 189 [2021-06-17 01:01:22,492 WARN L205 SmtUtils]: Spent 731.00 ms on a formula simplification. DAG size of input: 334 DAG size of output: 193 [2021-06-17 01:01:23,437 WARN L205 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 176 [2021-06-17 01:01:23,623 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 01:01:23,623 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972756116] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:01:23,623 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 01:01:23,623 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 23] total 45 [2021-06-17 01:01:23,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718433251] [2021-06-17 01:01:23,624 INFO L462 AbstractCegarLoop]: Interpolant automaton has 45 states [2021-06-17 01:01:23,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 01:01:23,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-06-17 01:01:23,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=1783, Unknown=0, NotChecked=0, Total=1980 [2021-06-17 01:01:23,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:01:23,625 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 01:01:23,625 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 45 states, 45 states have (on average 2.0) internal successors, (90), 45 states have internal predecessors, (90), 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) [2021-06-17 01:01:23,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:01:23,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 01:01:23,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 01:01:23,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 01:01:23,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 01:01:23,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-17 01:01:23,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-17 01:01:23,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-17 01:01:23,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-06-17 01:01:23,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-17 01:01:23,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-17 01:01:23,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 01:01:23,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:01:24,715 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 82 [2021-06-17 01:01:25,102 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 82 [2021-06-17 01:01:25,308 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 89 [2021-06-17 01:01:25,518 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 77 [2021-06-17 01:01:25,955 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 89 [2021-06-17 01:01:26,269 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 98 [2021-06-17 01:01:26,512 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 108 [2021-06-17 01:01:26,811 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 107 [2021-06-17 01:01:27,311 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 102 [2021-06-17 01:01:27,949 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2021-06-17 01:01:29,017 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 115 [2021-06-17 01:01:29,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:01:29,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 01:01:29,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 01:01:29,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 01:01:29,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 01:01:29,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-17 01:01:29,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-17 01:01:29,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-17 01:01:29,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-17 01:01:29,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 01:01:29,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-17 01:01:29,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-17 01:01:29,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-17 01:01:29,607 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2021-06-17 01:01:29,607 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 01:01:29,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 01:01:29,607 INFO L82 PathProgramCache]: Analyzing trace with hash -2125691950, now seen corresponding path program 11 times [2021-06-17 01:01:29,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 01:01:29,607 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666029913] [2021-06-17 01:01:29,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 01:01:29,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 01:01:29,758 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 35 proven. 75 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-06-17 01:01:29,758 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 01:01:29,758 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666029913] [2021-06-17 01:01:29,759 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666029913] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:01:29,759 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587831723] [2021-06-17 01:01:29,759 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 01:01:29,798 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2021-06-17 01:01:29,798 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 01:01:29,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 21 conjunts are in the unsatisfiable core [2021-06-17 01:01:29,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 01:01:30,097 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 44 proven. 90 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-06-17 01:01:30,098 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587831723] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:01:30,098 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 01:01:30,098 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 21] total 30 [2021-06-17 01:01:30,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675782907] [2021-06-17 01:01:30,099 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-06-17 01:01:30,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 01:01:30,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-06-17 01:01:30,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=705, Unknown=0, NotChecked=0, Total=870 [2021-06-17 01:01:30,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:01:30,100 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 01:01:30,100 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 3.0) internal successors, (90), 30 states have internal predecessors, (90), 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) [2021-06-17 01:01:30,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:01:30,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 01:01:30,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 01:01:30,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 01:01:30,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 01:01:30,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-17 01:01:30,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-17 01:01:30,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-17 01:01:30,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-06-17 01:01:30,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 01:01:30,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-17 01:01:30,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-17 01:01:30,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-06-17 01:01:30,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:01:32,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:01:32,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 01:01:32,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 01:01:32,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 01:01:32,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 01:01:32,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-17 01:01:32,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-17 01:01:32,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-17 01:01:32,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-17 01:01:32,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 01:01:32,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-17 01:01:32,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-17 01:01:32,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-17 01:01:32,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2021-06-17 01:01:32,284 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 01:01:32,285 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 01:01:32,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 01:01:32,285 INFO L82 PathProgramCache]: Analyzing trace with hash -2109794486, now seen corresponding path program 12 times [2021-06-17 01:01:32,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 01:01:32,285 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007459060] [2021-06-17 01:01:32,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 01:01:32,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 01:01:32,659 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 60 proven. 158 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 01:01:32,659 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 01:01:32,659 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007459060] [2021-06-17 01:01:32,659 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007459060] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:01:32,659 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556339646] [2021-06-17 01:01:32,659 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 01:01:32,718 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2021-06-17 01:01:32,718 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 01:01:32,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 28 conjunts are in the unsatisfiable core [2021-06-17 01:01:32,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 01:01:33,077 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 71 proven. 147 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 01:01:33,077 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556339646] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:01:33,077 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 01:01:33,077 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 36 [2021-06-17 01:01:33,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136326697] [2021-06-17 01:01:33,078 INFO L462 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-06-17 01:01:33,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 01:01:33,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-06-17 01:01:33,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=1047, Unknown=0, NotChecked=0, Total=1260 [2021-06-17 01:01:33,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:01:33,079 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 01:01:33,079 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 2.5555555555555554) internal successors, (92), 36 states have internal predecessors, (92), 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) [2021-06-17 01:01:33,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:01:33,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 01:01:33,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 01:01:33,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 01:01:33,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 01:01:33,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-17 01:01:33,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-17 01:01:33,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-17 01:01:33,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-06-17 01:01:33,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 01:01:33,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-17 01:01:33,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-17 01:01:33,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-06-17 01:01:33,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2021-06-17 01:01:33,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:01:35,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:01:35,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 01:01:35,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 01:01:35,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 01:01:35,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 01:01:35,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-17 01:01:35,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-17 01:01:35,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-17 01:01:35,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-17 01:01:35,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 01:01:35,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-17 01:01:35,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-17 01:01:35,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-17 01:01:35,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2021-06-17 01:01:35,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2021-06-17 01:01:35,485 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable83 [2021-06-17 01:01:35,486 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 01:01:35,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 01:01:35,486 INFO L82 PathProgramCache]: Analyzing trace with hash 1410250088, now seen corresponding path program 13 times [2021-06-17 01:01:35,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 01:01:35,487 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635649289] [2021-06-17 01:01:35,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 01:01:35,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 01:01:35,817 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 60 proven. 181 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 01:01:35,818 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 01:01:35,818 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635649289] [2021-06-17 01:01:35,818 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635649289] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:01:35,818 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [723434042] [2021-06-17 01:01:35,818 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 01:01:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 01:01:35,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 29 conjunts are in the unsatisfiable core [2021-06-17 01:01:35,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 01:01:36,211 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 71 proven. 170 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 01:01:36,212 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [723434042] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:01:36,212 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 01:01:36,212 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 37 [2021-06-17 01:01:36,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317362811] [2021-06-17 01:01:36,212 INFO L462 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-06-17 01:01:36,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 01:01:36,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-06-17 01:01:36,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=226, Invalid=1106, Unknown=0, NotChecked=0, Total=1332 [2021-06-17 01:01:36,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:01:36,213 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 01:01:36,214 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 2.5405405405405403) internal successors, (94), 37 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 01:01:36,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:01:36,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 01:01:36,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 01:01:36,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 01:01:36,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 01:01:36,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-17 01:01:36,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-17 01:01:36,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-17 01:01:36,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-06-17 01:01:36,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 01:01:36,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-17 01:01:36,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-17 01:01:36,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-06-17 01:01:36,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2021-06-17 01:01:36,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2021-06-17 01:01:36,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:01:38,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:01:38,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 01:01:38,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 01:01:38,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 01:01:38,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 01:01:38,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-17 01:01:38,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-17 01:01:38,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-17 01:01:38,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-17 01:01:38,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 01:01:38,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-17 01:01:38,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-17 01:01:38,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-17 01:01:38,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2021-06-17 01:01:38,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2021-06-17 01:01:38,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2021-06-17 01:01:39,019 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 01:01:39,020 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 01:01:39,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 01:01:39,020 INFO L82 PathProgramCache]: Analyzing trace with hash -261143546, now seen corresponding path program 14 times [2021-06-17 01:01:39,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 01:01:39,020 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591019924] [2021-06-17 01:01:39,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 01:01:39,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 01:01:39,433 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 60 proven. 206 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 01:01:39,434 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 01:01:39,434 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591019924] [2021-06-17 01:01:39,434 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591019924] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:01:39,434 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608099155] [2021-06-17 01:01:39,434 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 01:01:39,483 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 01:01:39,483 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 01:01:39,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 30 conjunts are in the unsatisfiable core [2021-06-17 01:01:39,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 01:01:39,850 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 71 proven. 195 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 01:01:39,850 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608099155] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:01:39,850 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 01:01:39,850 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 38 [2021-06-17 01:01:39,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029880993] [2021-06-17 01:01:39,851 INFO L462 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-06-17 01:01:39,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 01:01:39,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-06-17 01:01:39,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=1166, Unknown=0, NotChecked=0, Total=1406 [2021-06-17 01:01:39,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:01:39,852 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 01:01:39,854 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 38 states, 38 states have (on average 2.526315789473684) internal successors, (96), 38 states have internal predecessors, (96), 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) [2021-06-17 01:01:39,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:01:39,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 01:01:39,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 01:01:39,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 01:01:39,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 01:01:39,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-17 01:01:39,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-17 01:01:39,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-17 01:01:39,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-06-17 01:01:39,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 01:01:39,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-17 01:01:39,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-17 01:01:39,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-06-17 01:01:39,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2021-06-17 01:01:39,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2021-06-17 01:01:39,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. [2021-06-17 01:01:39,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:01:42,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:01:42,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 01:01:42,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 01:01:42,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 01:01:42,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 01:01:42,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-17 01:01:42,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-17 01:01:42,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-17 01:01:42,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-17 01:01:42,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 01:01:42,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-17 01:01:42,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-17 01:01:42,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-17 01:01:42,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2021-06-17 01:01:42,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2021-06-17 01:01:42,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2021-06-17 01:01:42,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-06-17 01:01:42,899 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 01:01:42,899 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 01:01:42,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 01:01:42,899 INFO L82 PathProgramCache]: Analyzing trace with hash -152657116, now seen corresponding path program 15 times [2021-06-17 01:01:42,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 01:01:42,900 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128287162] [2021-06-17 01:01:42,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 01:01:42,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 01:01:44,483 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91 [2021-06-17 01:01:44,682 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 98 [2021-06-17 01:01:44,932 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2021-06-17 01:01:45,147 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2021-06-17 01:01:45,353 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2021-06-17 01:01:45,547 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2021-06-17 01:01:45,738 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2021-06-17 01:01:45,960 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2021-06-17 01:01:46,153 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2021-06-17 01:01:46,336 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2021-06-17 01:01:47,317 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 30 proven. 264 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 01:01:47,317 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 01:01:47,317 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128287162] [2021-06-17 01:01:47,318 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128287162] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:01:47,318 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057278588] [2021-06-17 01:01:47,318 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 01:01:47,387 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2021-06-17 01:01:47,387 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 01:01:47,389 WARN L261 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 99 conjunts are in the unsatisfiable core [2021-06-17 01:01:47,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 01:01:50,430 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 211 [2021-06-17 01:02:51,917 WARN L205 SmtUtils]: Spent 1.02 m on a formula simplification. DAG size of input: 211 DAG size of output: 171 [2021-06-17 01:03:22,815 WARN L205 SmtUtils]: Spent 29.02 s on a formula simplification that was a NOOP. DAG size: 1264 [2021-06-17 01:03:24,626 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 1309 DAG size of output: 1309 [2021-06-17 01:03:24,910 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 1811 DAG size of output: 1811 [2021-06-17 01:04:19,863 WARN L205 SmtUtils]: Spent 52.84 s on a formula simplification. DAG size of input: 2018 DAG size of output: 1263 [2021-06-17 01:04:21,119 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 1300 DAG size of output: 1300 [2021-06-17 01:04:21,281 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 1300 DAG size of output: 1300 [2021-06-17 01:04:21,424 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 1675 DAG size of output: 1675 [2021-06-17 01:04:21,615 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 1866 DAG size of output: 1866 [2021-06-17 01:05:18,482 WARN L205 SmtUtils]: Spent 54.76 s on a formula simplification. DAG size of input: 1866 DAG size of output: 1262 [2021-06-17 01:05:20,090 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 1945 DAG size of output: 1945 [2021-06-17 01:05:20,267 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 2168 DAG size of output: 2168 [2021-06-17 01:05:39,438 WARN L227 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2021-06-17 01:05:39,440 WARN L348 FreeRefinementEngine]: Global settings require throwing the following exception [2021-06-17 01:05:39,640 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 01:05:39,641 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:626) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:120) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:173) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:140) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:360) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:305) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:582) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:201) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:297) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:190) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:180) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:561) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:374) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:63) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:363) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:293) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:238) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:238) ... 53 more [2021-06-17 01:05:39,647 INFO L168 Benchmark]: Toolchain (without parser) took 352940.29 ms. Allocated memory was 182.5 MB in the beginning and 697.3 MB in the end (delta: 514.9 MB). Free memory was 162.3 MB in the beginning and 361.7 MB in the end (delta: -199.3 MB). Peak memory consumption was 451.0 MB. Max. memory is 8.0 GB. [2021-06-17 01:05:39,647 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 182.5 MB. Free memory is still 163.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-17 01:05:39,647 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.84 ms. Allocated memory is still 182.5 MB. Free memory was 162.3 MB in the beginning and 160.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-06-17 01:05:39,647 INFO L168 Benchmark]: Boogie Preprocessor took 19.83 ms. Allocated memory is still 182.5 MB. Free memory was 160.9 MB in the beginning and 159.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-17 01:05:39,647 INFO L168 Benchmark]: RCFGBuilder took 288.77 ms. Allocated memory is still 182.5 MB. Free memory was 159.7 MB in the beginning and 146.2 MB in the end (delta: 13.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-06-17 01:05:39,647 INFO L168 Benchmark]: TraceAbstraction took 352596.81 ms. Allocated memory was 182.5 MB in the beginning and 697.3 MB in the end (delta: 514.9 MB). Free memory was 145.7 MB in the beginning and 361.7 MB in the end (delta: -216.0 MB). Peak memory consumption was 434.3 MB. Max. memory is 8.0 GB. [2021-06-17 01:05:39,648 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 182.5 MB. Free memory is still 163.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 25.84 ms. Allocated memory is still 182.5 MB. Free memory was 162.3 MB in the beginning and 160.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Preprocessor took 19.83 ms. Allocated memory is still 182.5 MB. Free memory was 160.9 MB in the beginning and 159.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 288.77 ms. Allocated memory is still 182.5 MB. Free memory was 159.7 MB in the beginning and 146.2 MB in the end (delta: 13.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 352596.81 ms. Allocated memory was 182.5 MB in the beginning and 697.3 MB in the end (delta: 514.9 MB). Free memory was 145.7 MB in the beginning and 361.7 MB in the end (delta: -216.0 MB). Peak memory consumption was 434.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...