/usr/bin/java -Xmx16000000000 -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-DelaySleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-dec.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-06 10:36:37,321 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-06 10:36:37,323 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-06 10:36:37,364 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-06 10:36:37,417 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-06 10:36:37,417 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-06 10:36:37,418 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-06 10:36:37,421 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-DelaySleep-NoLbe.epf [2021-06-06 10:36:37,460 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-06 10:36:37,461 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-06 10:36:37,461 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-06 10:36:37,461 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-06 10:36:37,463 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-06 10:36:37,464 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-06 10:36:37,464 INFO L138 SettingsManager]: * Use SBE=true [2021-06-06 10:36:37,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-06 10:36:37,464 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-06 10:36:37,464 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-06 10:36:37,465 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-06 10:36:37,465 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-06 10:36:37,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-06 10:36:37,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-06 10:36:37,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-06 10:36:37,466 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-06 10:36:37,466 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-06 10:36:37,466 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-06 10:36:37,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-06 10:36:37,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-06 10:36:37,466 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-06 10:36:37,466 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-06 10:36:37,466 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-06 10:36:37,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 10:36:37,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-06 10:36:37,467 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-06 10:36:37,467 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-06 10:36:37,467 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-06 10:36:37,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-06 10:36:37,467 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-06 10:36:37,467 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-06 10:36:37,467 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-06 10:36:37,468 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-06 10:36:37,468 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-06 10:36:37,761 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-06 10:36:37,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-06 10:36:37,785 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-06 10:36:37,786 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-06 10:36:37,787 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-06 10:36:37,788 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-dec.wvr.bpl [2021-06-06 10:36:37,788 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-dec.wvr.bpl' [2021-06-06 10:36:37,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-06 10:36:37,813 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-06 10:36:37,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-06 10:36:37,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-06 10:36:37,815 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-06 10:36:37,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:36:37" (1/1) ... [2021-06-06 10:36:37,837 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:36:37" (1/1) ... [2021-06-06 10:36:37,844 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-06 10:36:37,845 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-06 10:36:37,846 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-06 10:36:37,846 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-06 10:36:37,852 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:36:37" (1/1) ... [2021-06-06 10:36:37,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:36:37" (1/1) ... [2021-06-06 10:36:37,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:36:37" (1/1) ... [2021-06-06 10:36:37,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:36:37" (1/1) ... [2021-06-06 10:36:37,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:36:37" (1/1) ... [2021-06-06 10:36:37,863 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:36:37" (1/1) ... [2021-06-06 10:36:37,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:36:37" (1/1) ... [2021-06-06 10:36:37,864 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-06 10:36:37,865 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-06 10:36:37,865 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-06 10:36:37,865 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-06 10:36:37,869 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:36:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 10:36:37,946 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-06 10:36:37,946 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-06 10:36:37,946 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-06 10:36:37,947 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-06 10:36:37,947 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-06 10:36:37,947 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-06 10:36:37,947 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-06 10:36:37,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-06 10:36:37,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-06 10:36:37,947 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-06 10:36:37,948 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-06 10:36:37,948 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-06 10:36:37,948 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-06-06 10:36:37,948 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-06-06 10:36:37,948 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-06-06 10:36:37,949 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-06 10:36:38,138 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-06 10:36:38,139 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-06 10:36:38,140 INFO L202 PluginConnector]: Adding new model min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 10:36:38 BoogieIcfgContainer [2021-06-06 10:36:38,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-06 10:36:38,142 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-06 10:36:38,142 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-06 10:36:38,165 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-06 10:36:38,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:36:37" (1/2) ... [2021-06-06 10:36:38,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b2d20b6 and model type min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.06 10:36:38, skipping insertion in model container [2021-06-06 10:36:38,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 10:36:38" (2/2) ... [2021-06-06 10:36:38,167 INFO L111 eAbstractionObserver]: Analyzing ICFG min-max-dec.wvr.bpl [2021-06-06 10:36:38,172 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-06 10:36:38,172 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-06 10:36:38,172 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-06 10:36:38,173 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-06 10:36:38,248 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-06 10:36:38,276 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 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 [2021-06-06 10:36:38,333 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-06 10:36:38,333 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-06 10:36:38,333 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-06 10:36:38,334 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-06 10:36:38,334 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-06 10:36:38,334 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-06 10:36:38,334 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-06 10:36:38,334 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-06 10:36:38,464 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 10:36:38,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 10:36:38,468 INFO L82 PathProgramCache]: Analyzing trace with hash 2011364670, now seen corresponding path program 1 times [2021-06-06 10:36:38,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 10:36:38,478 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200616622] [2021-06-06 10:36:38,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 10:36:38,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 10:36:38,696 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 10:36:38,696 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 10:36:38,697 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200616622] [2021-06-06 10:36:38,697 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200616622] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 10:36:38,698 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054272175] [2021-06-06 10:36:38,698 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 [2021-06-06 10:36:38,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 10:36:38,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-06 10:36:38,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 10:36:38,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-06-06 10:36:38,881 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 10:36:38,883 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 10:36:38,884 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 10:36:38,884 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:3 [2021-06-06 10:36:38,981 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 10:36:38,982 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2054272175] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 10:36:38,982 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 10:36:38,982 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-06-06 10:36:38,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332701681] [2021-06-06 10:36:38,988 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-06 10:36:38,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 10:36:39,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-06 10:36:39,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-06-06 10:36:39,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 10:36:39,005 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 10:36:39,007 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 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) [2021-06-06 10:36:39,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 10:36:39,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 10:36:39,425 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-06-06 10:36:39,425 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 10:36:39,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 10:36:39,426 INFO L82 PathProgramCache]: Analyzing trace with hash -1427928730, now seen corresponding path program 2 times [2021-06-06 10:36:39,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 10:36:39,426 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119383904] [2021-06-06 10:36:39,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 10:36:39,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 10:36:39,558 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 10:36:39,558 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 10:36:39,559 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119383904] [2021-06-06 10:36:39,559 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119383904] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 10:36:39,559 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288792261] [2021-06-06 10:36:39,559 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 [2021-06-06 10:36:39,613 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 10:36:39,613 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 10:36:39,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-06 10:36:39,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 10:36:39,710 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 10:36:39,711 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288792261] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 10:36:39,711 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 10:36:39,711 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-06-06 10:36:39,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820285195] [2021-06-06 10:36:39,712 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-06 10:36:39,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 10:36:39,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-06 10:36:39,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-06-06 10:36:39,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 10:36:39,714 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 10:36:39,714 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 6 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) [2021-06-06 10:36:39,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 10:36:39,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 10:36:39,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 10:36:39,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 10:36:40,072 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 10:36:40,073 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 10:36:40,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 10:36:40,073 INFO L82 PathProgramCache]: Analyzing trace with hash 2041830362, now seen corresponding path program 3 times [2021-06-06 10:36:40,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 10:36:40,074 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793803712] [2021-06-06 10:36:40,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 10:36:40,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 10:36:40,131 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 10:36:40,132 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 10:36:40,132 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793803712] [2021-06-06 10:36:40,132 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793803712] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 10:36:40,132 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463790972] [2021-06-06 10:36:40,132 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 [2021-06-06 10:36:40,179 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-06-06 10:36:40,179 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 10:36:40,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-06 10:36:40,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 10:36:40,259 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 10:36:40,259 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463790972] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 10:36:40,259 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 10:36:40,259 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-06-06 10:36:40,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181247766] [2021-06-06 10:36:40,260 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-06 10:36:40,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 10:36:40,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-06 10:36:40,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-06-06 10:36:40,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 10:36:40,261 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 10:36:40,262 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 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) [2021-06-06 10:36:40,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 10:36:40,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 10:36:40,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 10:36:40,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 10:36:40,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 10:36:40,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 10:36:40,692 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 10:36:40,693 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 10:36:40,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 10:36:40,693 INFO L82 PathProgramCache]: Analyzing trace with hash -67871266, now seen corresponding path program 4 times [2021-06-06 10:36:40,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 10:36:40,694 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238935075] [2021-06-06 10:36:40,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 10:36:40,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 10:36:40,781 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-06-06 10:36:40,781 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 10:36:40,781 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238935075] [2021-06-06 10:36:40,782 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238935075] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 10:36:40,782 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151158958] [2021-06-06 10:36:40,782 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 [2021-06-06 10:36:40,831 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 10:36:40,832 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 10:36:40,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-06 10:36:40,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 10:36:41,052 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 12 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 10:36:41,053 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151158958] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 10:36:41,053 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 10:36:41,053 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 16 [2021-06-06 10:36:41,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729182678] [2021-06-06 10:36:41,053 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-06 10:36:41,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 10:36:41,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-06 10:36:41,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2021-06-06 10:36:41,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 10:36:41,055 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 10:36:41,055 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 4.117647058823529) internal successors, (70), 16 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 10:36:41,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 10:36:41,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 10:36:41,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 10:36:41,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 10:36:41,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 10:36:41,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 10:36:41,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 10:36:41,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 10:36:42,028 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 10:36:42,029 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 10:36:42,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 10:36:42,030 INFO L82 PathProgramCache]: Analyzing trace with hash 728795636, now seen corresponding path program 5 times [2021-06-06 10:36:42,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 10:36:42,030 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277776618] [2021-06-06 10:36:42,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 10:36:42,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 10:36:42,134 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 4 proven. 30 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-06-06 10:36:42,135 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 10:36:42,135 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277776618] [2021-06-06 10:36:42,135 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277776618] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 10:36:42,135 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209944456] [2021-06-06 10:36:42,135 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 [2021-06-06 10:36:42,192 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-06-06 10:36:42,192 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 10:36:42,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-06 10:36:42,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 10:36:42,358 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 9 proven. 25 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-06-06 10:36:42,358 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [209944456] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 10:36:42,358 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 10:36:42,358 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 13 [2021-06-06 10:36:42,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072713093] [2021-06-06 10:36:42,359 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-06 10:36:42,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 10:36:42,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-06 10:36:42,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-06-06 10:36:42,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 10:36:42,360 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 10:36:42,360 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 13 states have internal predecessors, (61), 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) [2021-06-06 10:36:42,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 10:36:42,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 10:36:42,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 10:36:42,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 10:36:42,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 10:36:43,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 10:36:43,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 10:36:43,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 10:36:43,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 10:36:43,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-06 10:36:43,213 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 10:36:43,214 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 10:36:43,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 10:36:43,214 INFO L82 PathProgramCache]: Analyzing trace with hash -874648426, now seen corresponding path program 6 times [2021-06-06 10:36:43,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 10:36:43,214 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183808384] [2021-06-06 10:36:43,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 10:36:43,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 10:36:43,329 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 36 proven. 16 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-06-06 10:36:43,329 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 10:36:43,329 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183808384] [2021-06-06 10:36:43,329 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183808384] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 10:36:43,330 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021570470] [2021-06-06 10:36:43,330 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 [2021-06-06 10:36:43,403 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-06-06 10:36:43,403 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 10:36:43,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 35 conjunts are in the unsatisfiable core [2021-06-06 10:36:43,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 10:36:43,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 10:36:43,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 10:36:43,800 INFO L354 Elim1Store]: treesize reduction 32, result has 60.5 percent of original size [2021-06-06 10:36:43,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 64 [2021-06-06 10:36:43,810 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 10:36:43,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 10:36:43,860 INFO L354 Elim1Store]: treesize reduction 32, result has 60.5 percent of original size [2021-06-06 10:36:43,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 29 treesize of output 64 [2021-06-06 10:36:43,879 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-06-06 10:36:44,018 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 49 [2021-06-06 10:36:44,019 INFO L628 ElimStorePlain]: treesize reduction 69, result has 65.8 percent of original size [2021-06-06 10:36:44,052 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2021-06-06 10:36:44,052 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:79, output treesize:133 [2021-06-06 10:36:44,884 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-06-06 10:36:44,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 10:36:44,950 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 10:36:44,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 36 [2021-06-06 10:36:44,968 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2021-06-06 10:36:44,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 10:36:44,991 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 10:36:44,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 32 [2021-06-06 10:36:45,037 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-06-06 10:36:45,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 10:36:45,060 INFO L354 Elim1Store]: treesize reduction 13, result has 48.0 percent of original size [2021-06-06 10:36:45,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 25 [2021-06-06 10:36:45,063 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-06 10:36:45,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 10:36:45,089 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 10:36:45,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 34 [2021-06-06 10:36:45,107 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 3 xjuncts. [2021-06-06 10:36:45,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 10:36:45,136 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 10:36:45,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 32 [2021-06-06 10:36:45,150 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 3 xjuncts. [2021-06-06 10:36:45,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 10:36:45,166 INFO L354 Elim1Store]: treesize reduction 20, result has 13.0 percent of original size [2021-06-06 10:36:45,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 15 [2021-06-06 10:36:45,171 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-06 10:36:45,355 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2021-06-06 10:36:45,356 INFO L628 ElimStorePlain]: treesize reduction 21, result has 90.3 percent of original size [2021-06-06 10:36:45,378 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 6 xjuncts. [2021-06-06 10:36:45,378 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:245, output treesize:195 [2021-06-06 10:36:45,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-06-06 10:36:45,658 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 10:36:45,710 INFO L628 ElimStorePlain]: treesize reduction 29, result has 67.8 percent of original size [2021-06-06 10:36:45,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-06-06 10:36:45,715 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-06 10:36:45,745 INFO L628 ElimStorePlain]: treesize reduction 24, result has 57.1 percent of original size [2021-06-06 10:36:45,745 INFO L518 ElimStorePlain]: Eliminatee v_prenex_3 vanished before elimination [2021-06-06 10:36:45,747 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-06 10:36:45,747 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:95, output treesize:20 [2021-06-06 10:36:45,952 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 15 proven. 45 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-06-06 10:36:45,952 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021570470] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 10:36:45,952 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 10:36:45,952 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 17] total 27 [2021-06-06 10:36:45,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961866840] [2021-06-06 10:36:45,954 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-06 10:36:45,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 10:36:45,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-06 10:36:45,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=670, Unknown=0, NotChecked=0, Total=756 [2021-06-06 10:36:45,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 10:36:45,955 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 10:36:45,955 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 3.1785714285714284) internal successors, (89), 27 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 10:36:45,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 10:36:45,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 10:36:45,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 10:36:45,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 10:36:45,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-06-06 10:36:45,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 10:36:46,873 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2021-06-06 10:36:47,042 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2021-06-06 10:36:48,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 10:36:48,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 10:36:48,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 10:36:48,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-06 10:36:48,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-06 10:36:48,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-06 10:36:48,880 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 10:36:48,881 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 10:36:48,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 10:36:48,881 INFO L82 PathProgramCache]: Analyzing trace with hash 14845586, now seen corresponding path program 7 times [2021-06-06 10:36:48,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 10:36:48,881 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388196098] [2021-06-06 10:36:48,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 10:36:48,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 10:36:49,123 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 64 proven. 98 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-06 10:36:49,123 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 10:36:49,123 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388196098] [2021-06-06 10:36:49,124 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388196098] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 10:36:49,124 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732151584] [2021-06-06 10:36:49,124 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 [2021-06-06 10:36:49,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 10:36:49,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-06 10:36:49,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 10:36:49,395 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 92 proven. 46 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-06-06 10:36:49,396 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732151584] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 10:36:49,396 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 10:36:49,396 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 10] total 28 [2021-06-06 10:36:49,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815504366] [2021-06-06 10:36:49,397 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-06-06 10:36:49,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 10:36:49,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-06-06 10:36:49,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=676, Unknown=0, NotChecked=0, Total=812 [2021-06-06 10:36:49,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 10:36:49,398 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 10:36:49,398 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 3.7586206896551726) internal successors, (109), 28 states have internal predecessors, (109), 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) [2021-06-06 10:36:49,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 10:36:49,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 10:36:49,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 10:36:49,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-06 10:36:49,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-06-06 10:36:49,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-06 10:36:49,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 10:36:50,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 10:36:50,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 10:36:50,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 10:36:50,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-06 10:36:50,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-06 10:36:50,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-06 10:36:50,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 10:36:50,321 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 10:36:50,321 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 10:36:50,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 10:36:50,321 INFO L82 PathProgramCache]: Analyzing trace with hash 361022192, now seen corresponding path program 8 times [2021-06-06 10:36:50,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 10:36:50,321 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743490682] [2021-06-06 10:36:50,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 10:36:50,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 10:36:50,462 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 42 proven. 105 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-06-06 10:36:50,462 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 10:36:50,462 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743490682] [2021-06-06 10:36:50,462 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743490682] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 10:36:50,462 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530493697] [2021-06-06 10:36:50,462 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 [2021-06-06 10:36:50,516 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 10:36:50,516 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 10:36:50,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 17 conjunts are in the unsatisfiable core [2021-06-06 10:36:50,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 10:36:50,780 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 85 proven. 68 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-06-06 10:36:50,780 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [530493697] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 10:36:50,780 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 10:36:50,780 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2021-06-06 10:36:50,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103200892] [2021-06-06 10:36:50,781 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-06-06 10:36:50,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 10:36:50,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-06-06 10:36:50,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=453, Unknown=0, NotChecked=0, Total=552 [2021-06-06 10:36:50,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 10:36:50,782 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 10:36:50,782 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 4.25) internal successors, (102), 23 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 10:36:50,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 10:36:50,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 10:36:50,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 10:36:50,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-06 10:36:50,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-06-06 10:36:50,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-06 10:36:50,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 10:36:50,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 10:36:51,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 10:36:51,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 10:36:51,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 10:36:51,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-06 10:36:51,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-06 10:36:51,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-06 10:36:51,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 10:36:51,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-06 10:36:51,662 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 10:36:51,662 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 10:36:51,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 10:36:51,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1970708530, now seen corresponding path program 9 times [2021-06-06 10:36:51,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 10:36:51,662 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844968285] [2021-06-06 10:36:51,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 10:36:51,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 10:36:54,462 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2021-06-06 10:36:54,463 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 10:36:54,463 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844968285] [2021-06-06 10:36:54,463 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844968285] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 10:36:54,463 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118315097] [2021-06-06 10:36:54,463 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 [2021-06-06 10:36:54,511 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-06 10:36:54,511 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 10:36:54,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-06 10:36:54,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 10:36:54,709 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 10:36:54,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2021-06-06 10:36:54,716 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-06-06 10:36:54,727 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 10:36:54,733 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-06 10:36:54,733 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:27, output treesize:19 [2021-06-06 10:36:54,793 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 18 proven. 75 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-06-06 10:36:54,793 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118315097] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 10:36:54,793 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 10:36:54,793 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2021-06-06 10:36:54,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492891414] [2021-06-06 10:36:54,794 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-06 10:36:54,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 10:36:54,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-06 10:36:54,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-06-06 10:36:54,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 10:36:54,795 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 10:36:54,795 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 4.4) internal successors, (66), 15 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) [2021-06-06 10:36:54,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 10:36:54,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 10:36:54,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 10:36:54,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-06 10:36:54,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-06-06 10:36:54,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-06 10:36:54,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 10:36:54,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-06 10:36:54,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 10:37:00,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 10:37:00,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 10:37:00,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 10:37:00,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-06 10:37:00,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-06 10:37:00,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-06 10:37:00,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 10:37:00,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-06 10:37:00,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-06-06 10:37:01,088 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 10:37:01,088 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 10:37:01,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 10:37:01,089 INFO L82 PathProgramCache]: Analyzing trace with hash -543186390, now seen corresponding path program 10 times [2021-06-06 10:37:01,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 10:37:01,089 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861698173] [2021-06-06 10:37:01,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 10:37:01,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 10:37:01,174 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 17 proven. 85 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-06-06 10:37:01,174 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 10:37:01,174 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861698173] [2021-06-06 10:37:01,174 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861698173] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 10:37:01,174 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918581978] [2021-06-06 10:37:01,175 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 [2021-06-06 10:37:01,235 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 10:37:01,235 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 10:37:01,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-06 10:37:01,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 10:37:01,493 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 100 proven. 29 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-06-06 10:37:01,493 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918581978] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 10:37:01,493 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 10:37:01,494 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 15] total 24 [2021-06-06 10:37:01,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151629062] [2021-06-06 10:37:01,494 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-06 10:37:01,494 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 10:37:01,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-06 10:37:01,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=493, Unknown=0, NotChecked=0, Total=600 [2021-06-06 10:37:01,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 10:37:01,495 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 10:37:01,495 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 24 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) [2021-06-06 10:37:01,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 10:37:01,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 10:37:01,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 10:37:01,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-06 10:37:01,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-06-06 10:37:01,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-06 10:37:01,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 10:37:01,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-06 10:37:01,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-06-06 10:37:01,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 10:37:02,168 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-06-06 10:37:05,163 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2021-06-06 10:37:06,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 10:37:06,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 10:37:06,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 10:37:06,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-06 10:37:06,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-06 10:37:06,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-06-06 10:37:06,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 10:37:06,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-06 10:37:06,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-06-06 10:37:06,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-06-06 10:37:07,092 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2021-06-06 10:37:07,093 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 10:37:07,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 10:37:07,093 INFO L82 PathProgramCache]: Analyzing trace with hash -1715818942, now seen corresponding path program 11 times [2021-06-06 10:37:07,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 10:37:07,094 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816114083] [2021-06-06 10:37:07,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 10:37:07,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 10:37:07,223 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 36 proven. 61 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-06-06 10:37:07,223 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 10:37:07,224 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816114083] [2021-06-06 10:37:07,224 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816114083] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 10:37:07,224 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832216974] [2021-06-06 10:37:07,224 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 [2021-06-06 10:37:07,383 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-06-06 10:37:07,383 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 10:37:07,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 19 conjunts are in the unsatisfiable core [2021-06-06 10:37:07,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 10:37:07,768 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 90 proven. 64 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-06-06 10:37:07,768 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832216974] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 10:37:07,769 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 10:37:07,769 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 19] total 32 [2021-06-06 10:37:07,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558668756] [2021-06-06 10:37:07,769 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-06-06 10:37:07,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 10:37:07,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-06-06 10:37:07,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=890, Unknown=0, NotChecked=0, Total=1056 [2021-06-06 10:37:07,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 10:37:07,770 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 10:37:07,770 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 3.0606060606060606) internal successors, (101), 32 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 10:37:07,770 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 10:37:07,770 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 10:37:07,770 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 10:37:07,770 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-06 10:37:07,770 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-06-06 10:37:07,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-06-06 10:37:07,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 10:37:07,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-06 10:37:07,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2021-06-06 10:37:07,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2021-06-06 10:37:07,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 10:37:13,878 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2021-06-06 10:37:18,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 10:37:18,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 10:37:18,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 10:37:18,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-06 10:37:18,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 10:37:18,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-06-06 10:37:18,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 10:37:18,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-06 10:37:18,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-06-06 10:37:18,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2021-06-06 10:37:18,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-06 10:37:18,715 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2021-06-06 10:37:18,715 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 10:37:18,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 10:37:18,716 INFO L82 PathProgramCache]: Analyzing trace with hash -493879122, now seen corresponding path program 12 times [2021-06-06 10:37:18,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 10:37:18,716 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436055931] [2021-06-06 10:37:18,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 10:37:18,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 10:37:18,881 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 64 proven. 136 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-06-06 10:37:18,881 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 10:37:18,881 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436055931] [2021-06-06 10:37:18,881 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436055931] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 10:37:18,881 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605136576] [2021-06-06 10:37:18,882 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 [2021-06-06 10:37:18,958 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 18 check-sat command(s) [2021-06-06 10:37:18,959 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 10:37:18,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 22 conjunts are in the unsatisfiable core [2021-06-06 10:37:18,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 10:37:19,277 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 117 proven. 131 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-06-06 10:37:19,278 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605136576] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 10:37:19,278 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 10:37:19,278 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 13] total 30 [2021-06-06 10:37:19,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718981872] [2021-06-06 10:37:19,278 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-06 10:37:19,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 10:37:19,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-06 10:37:19,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=764, Unknown=0, NotChecked=0, Total=930 [2021-06-06 10:37:19,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 10:37:19,279 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 10:37:19,280 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 4.032258064516129) internal successors, (125), 30 states have internal predecessors, (125), 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) [2021-06-06 10:37:19,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 10:37:19,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 10:37:19,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 10:37:19,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-06 10:37:19,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 10:37:19,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-06-06 10:37:19,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 10:37:19,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-06 10:37:19,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2021-06-06 10:37:19,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 155 states. [2021-06-06 10:37:19,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-06-06 10:37:19,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 10:37:43,910 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2021-06-06 10:37:49,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 10:37:49,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 10:37:49,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 10:37:49,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-06 10:37:49,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 10:37:49,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-06-06 10:37:49,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 10:37:49,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-06 10:37:49,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-06-06 10:37:49,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2021-06-06 10:37:49,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-06 10:37:49,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 686 states. [2021-06-06 10:37:49,808 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2021-06-06 10:37:49,809 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 10:37:49,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 10:37:49,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1053144234, now seen corresponding path program 13 times [2021-06-06 10:37:49,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 10:37:49,809 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120909032] [2021-06-06 10:37:49,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 10:37:49,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 10:37:49,950 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 85 proven. 281 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-06-06 10:37:49,950 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 10:37:49,950 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120909032] [2021-06-06 10:37:49,950 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120909032] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 10:37:49,950 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769466036] [2021-06-06 10:37:49,950 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 [2021-06-06 10:37:50,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 10:37:50,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 25 conjunts are in the unsatisfiable core [2021-06-06 10:37:50,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 10:37:50,552 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 205 proven. 183 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-06-06 10:37:50,552 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769466036] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 10:37:50,552 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 10:37:50,552 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14] total 29 [2021-06-06 10:37:50,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144960146] [2021-06-06 10:37:50,553 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-06-06 10:37:50,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 10:37:50,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-06-06 10:37:50,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=688, Unknown=0, NotChecked=0, Total=870 [2021-06-06 10:37:50,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 10:37:50,554 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 10:37:50,554 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 4.733333333333333) internal successors, (142), 29 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 10:37:50,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 10:37:50,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 10:37:50,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 10:37:50,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-06 10:37:50,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 10:37:50,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-06-06 10:37:50,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 10:37:50,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-06 10:37:50,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-06-06 10:37:50,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 155 states. [2021-06-06 10:37:50,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-06-06 10:37:50,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 686 states. [2021-06-06 10:37:50,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 10:40:23,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 10:40:23,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 10:40:23,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 10:40:23,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-06 10:40:23,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 10:40:23,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-06-06 10:40:23,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 10:40:23,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-06 10:40:23,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-06-06 10:40:23,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2021-06-06 10:40:23,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-06 10:40:23,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 686 states. [2021-06-06 10:40:23,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 541 states. [2021-06-06 10:40:24,078 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 10:40:24,078 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 10:40:24,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 10:40:24,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1717295308, now seen corresponding path program 14 times [2021-06-06 10:40:24,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 10:40:24,079 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844921055] [2021-06-06 10:40:24,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 10:40:24,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 10:40:24,211 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 155 proven. 264 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-06-06 10:40:24,212 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 10:40:24,212 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844921055] [2021-06-06 10:40:24,212 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844921055] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 10:40:24,212 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637013575] [2021-06-06 10:40:24,212 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 [2021-06-06 10:40:24,261 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 10:40:24,261 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 10:40:24,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-06 10:40:24,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 10:40:24,423 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 172 proven. 246 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-06-06 10:40:24,423 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1637013575] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 10:40:24,423 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 10:40:24,423 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 16 [2021-06-06 10:40:24,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344305449] [2021-06-06 10:40:24,424 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-06 10:40:24,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 10:40:24,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-06 10:40:24,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=171, Unknown=0, NotChecked=0, Total=272 [2021-06-06 10:40:24,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 10:40:24,424 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 10:40:24,425 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 5.117647058823529) internal successors, (87), 16 states have internal predecessors, (87), 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) [2021-06-06 10:40:24,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 10:40:24,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 10:40:24,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 10:40:24,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-06 10:40:24,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 10:40:24,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-06-06 10:40:24,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 10:40:24,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-06 10:40:24,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-06-06 10:40:24,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 155 states. [2021-06-06 10:40:24,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-06-06 10:40:24,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 686 states. [2021-06-06 10:40:24,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 541 states. [2021-06-06 10:40:24,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.