/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-Persistent-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dec-subseq-array.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d47b94137d5c7dd60722882962a90fb345e61909-d47b941 [2021-05-04 01:52:22,010 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-04 01:52:22,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-04 01:52:22,044 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-04 01:52:22,045 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-04 01:52:22,047 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-04 01:52:22,049 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-04 01:52:22,053 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-04 01:52:22,055 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-04 01:52:22,058 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-04 01:52:22,059 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-04 01:52:22,059 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-04 01:52:22,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-04 01:52:22,061 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-04 01:52:22,062 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-04 01:52:22,063 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-04 01:52:22,065 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-04 01:52:22,066 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-04 01:52:22,067 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-04 01:52:22,073 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-04 01:52:22,074 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-04 01:52:22,075 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-04 01:52:22,076 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-04 01:52:22,077 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-04 01:52:22,082 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-05-04 01:52:22,083 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-05-04 01:52:22,083 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-05-04 01:52:22,084 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-05-04 01:52:22,084 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-05-04 01:52:22,085 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-05-04 01:52:22,085 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-05-04 01:52:22,086 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-05-04 01:52:22,087 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-05-04 01:52:22,087 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-05-04 01:52:22,088 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-05-04 01:52:22,088 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-05-04 01:52:22,088 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-05-04 01:52:22,088 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-05-04 01:52:22,088 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-04 01:52:22,089 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-04 01:52:22,089 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-04 01:52:22,090 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-Persistent-NoLbe.epf [2021-05-04 01:52:22,117 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-04 01:52:22,117 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-04 01:52:22,118 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-04 01:52:22,118 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-04 01:52:22,120 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-04 01:52:22,120 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-04 01:52:22,120 INFO L138 SettingsManager]: * Use SBE=true [2021-05-04 01:52:22,120 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-04 01:52:22,120 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-04 01:52:22,120 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-04 01:52:22,121 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-04 01:52:22,121 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-04 01:52:22,121 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-04 01:52:22,121 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-04 01:52:22,121 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-04 01:52:22,121 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-04 01:52:22,122 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-04 01:52:22,122 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-04 01:52:22,122 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-04 01:52:22,122 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-04 01:52:22,122 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-04 01:52:22,122 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-04 01:52:22,122 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-04 01:52:22,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-04 01:52:22,122 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-04 01:52:22,123 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-04 01:52:22,123 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-04 01:52:22,123 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-04 01:52:22,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-04 01:52:22,123 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-04 01:52:22,123 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-05-04 01:52:22,123 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-04 01:52:22,123 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SETS [2021-05-04 01:52:22,123 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-04 01:52:22,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-04 01:52:22,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-04 01:52:22,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-04 01:52:22,412 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-05-04 01:52:22,413 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-05-04 01:52:22,413 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dec-subseq-array.wvr.bpl [2021-05-04 01:52:22,413 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dec-subseq-array.wvr.bpl' [2021-05-04 01:52:22,454 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-04 01:52:22,456 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-04 01:52:22,458 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-04 01:52:22,465 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-04 01:52:22,465 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-04 01:52:22,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 01:52:22" (1/1) ... [2021-05-04 01:52:22,489 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 01:52:22" (1/1) ... [2021-05-04 01:52:22,514 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-04 01:52:22,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-04 01:52:22,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-04 01:52:22,517 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-04 01:52:22,522 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 01:52:22" (1/1) ... [2021-05-04 01:52:22,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 01:52:22" (1/1) ... [2021-05-04 01:52:22,524 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 01:52:22" (1/1) ... [2021-05-04 01:52:22,524 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 01:52:22" (1/1) ... [2021-05-04 01:52:22,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 01:52:22" (1/1) ... [2021-05-04 01:52:22,529 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 01:52:22" (1/1) ... [2021-05-04 01:52:22,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 01:52:22" (1/1) ... [2021-05-04 01:52:22,530 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-04 01:52:22,531 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-04 01:52:22,531 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-04 01:52:22,531 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-04 01:52:22,541 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 01:52:22" (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 [2021-05-04 01:52:22,587 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-05-04 01:52:22,588 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-05-04 01:52:22,588 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-05-04 01:52:22,588 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-05-04 01:52:22,588 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-05-04 01:52:22,588 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-05-04 01:52:22,588 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-05-04 01:52:22,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-04 01:52:22,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-04 01:52:22,589 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-04 01:52:22,707 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-04 01:52:22,708 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-05-04 01:52:22,709 INFO L202 PluginConnector]: Adding new model dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 01:52:22 BoogieIcfgContainer [2021-05-04 01:52:22,709 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-04 01:52:22,710 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-04 01:52:22,710 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-04 01:52:22,712 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-04 01:52:22,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 01:52:22" (1/2) ... [2021-05-04 01:52:22,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b1de601 and model type dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 01:52:22, skipping insertion in model container [2021-05-04 01:52:22,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 01:52:22" (2/2) ... [2021-05-04 01:52:22,714 INFO L111 eAbstractionObserver]: Analyzing ICFG dec-subseq-array.wvr.bpl [2021-05-04 01:52:22,717 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-04 01:52:22,717 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-04 01:52:22,720 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-04 01:52:22,720 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-04 01:52:22,741 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-05-04 01:52:22,753 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 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 [2021-05-04 01:52:22,819 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-04 01:52:22,819 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-04 01:52:22,819 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-04 01:52:22,819 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-04 01:52:22,819 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-04 01:52:22,819 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-04 01:52:22,820 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-04 01:52:22,820 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-04 01:52:22,950 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 01:52:22,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 01:52:22,954 INFO L82 PathProgramCache]: Analyzing trace with hash 625365194, now seen corresponding path program 1 times [2021-05-04 01:52:22,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 01:52:22,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452661814] [2021-05-04 01:52:22,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 01:52:23,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 01:52:23,125 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:52:23,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452661814] [2021-05-04 01:52:23,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-04 01:52:23,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-04 01:52:23,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565805854] [2021-05-04 01:52:23,131 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-04 01:52:23,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 01:52:23,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-04 01:52:23,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-05-04 01:52:23,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:52:23,140 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 01:52:23,142 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-05-04 01:52:23,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:52:23,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:52:23,173 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-04 01:52:23,173 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 01:52:23,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 01:52:23,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1695635148, now seen corresponding path program 1 times [2021-05-04 01:52:23,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 01:52:23,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109983534] [2021-05-04 01:52:23,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 01:52:23,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 01:52:23,290 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:52:23,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109983534] [2021-05-04 01:52:23,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739654805] [2021-05-04 01:52:23,291 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 [2021-05-04 01:52:23,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 01:52:23,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 11 conjunts are in the unsatisfiable core [2021-05-04 01:52:23,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-04 01:52:23,468 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 13 treesize of output 9 [2021-05-04 01:52:23,473 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-04 01:52:23,480 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 01:52:23,482 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-04 01:52:23,482 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:7 [2021-05-04 01:52:23,521 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 [2021-05-04 01:52:23,524 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-04 01:52:23,527 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 01:52:23,529 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-04 01:52:23,529 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2021-05-04 01:52:23,550 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:52:23,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-04 01:52:23,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 11 [2021-05-04 01:52:23,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969916430] [2021-05-04 01:52:23,553 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-05-04 01:52:23,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 01:52:23,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-05-04 01:52:23,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-05-04 01:52:23,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:52:23,561 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 01:52:23,561 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-04 01:52:23,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:52:23,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:52:23,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:52:23,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-04 01:52:23,868 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-04 01:52:23,869 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 01:52:23,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 01:52:23,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1793580655, now seen corresponding path program 2 times [2021-05-04 01:52:23,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 01:52:23,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163246193] [2021-05-04 01:52:23,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 01:52:23,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 01:52:23,925 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:52:23,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163246193] [2021-05-04 01:52:23,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926423321] [2021-05-04 01:52:23,926 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 [2021-05-04 01:52:23,948 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-04 01:52:23,948 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-04 01:52:23,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2021-05-04 01:52:23,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-04 01:52:24,072 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:52:24,072 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-04 01:52:24,072 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3] total 6 [2021-05-04 01:52:24,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638675480] [2021-05-04 01:52:24,073 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-04 01:52:24,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 01:52:24,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-04 01:52:24,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-05-04 01:52:24,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:52:24,074 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 01:52:24,074 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 6 states have internal predecessors, (45), 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) [2021-05-04 01:52:24,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:52:24,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-04 01:52:24,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:52:24,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:52:24,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-04 01:52:24,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-04 01:52:24,328 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-04 01:52:24,329 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 01:52:24,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 01:52:24,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1639686247, now seen corresponding path program 3 times [2021-05-04 01:52:24,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 01:52:24,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088466875] [2021-05-04 01:52:24,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 01:52:24,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 01:52:24,579 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:52:24,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088466875] [2021-05-04 01:52:24,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [412332816] [2021-05-04 01:52:24,582 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 [2021-05-04 01:52:24,616 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-05-04 01:52:24,616 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-04 01:52:24,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 22 conjunts are in the unsatisfiable core [2021-05-04 01:52:24,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-04 01:52:24,799 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 01:52:24,800 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 29 treesize of output 27 [2021-05-04 01:52:24,810 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-04 01:52:24,814 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 01:52:24,815 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-04 01:52:24,815 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:30, output treesize:16 [2021-05-04 01:52:24,998 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 01:52:24,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 38 [2021-05-04 01:52:25,050 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-05-04 01:52:25,059 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 01:52:25,105 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-04 01:52:25,106 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:21 [2021-05-04 01:52:25,172 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:52:25,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-04 01:52:25,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 27 [2021-05-04 01:52:25,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162752743] [2021-05-04 01:52:25,173 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-04 01:52:25,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 01:52:25,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-04 01:52:25,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=624, Unknown=0, NotChecked=0, Total=756 [2021-05-04 01:52:25,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:52:25,174 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 01:52:25,175 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 2.107142857142857) internal successors, (59), 27 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-04 01:52:25,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:52:25,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-04 01:52:25,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-04 01:52:25,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:52:25,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:52:25,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-04 01:52:25,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-04 01:52:25,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-04 01:52:26,034 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-04 01:52:26,034 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 01:52:26,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 01:52:26,035 INFO L82 PathProgramCache]: Analyzing trace with hash -1319090364, now seen corresponding path program 4 times [2021-05-04 01:52:26,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 01:52:26,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363133774] [2021-05-04 01:52:26,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 01:52:26,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 01:52:26,092 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:52:26,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363133774] [2021-05-04 01:52:26,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118202345] [2021-05-04 01:52:26,093 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 [2021-05-04 01:52:26,118 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-04 01:52:26,118 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-04 01:52:26,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjunts are in the unsatisfiable core [2021-05-04 01:52:26,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-04 01:52:26,173 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:52:26,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-04 01:52:26,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 8 [2021-05-04 01:52:26,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209963220] [2021-05-04 01:52:26,173 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-04 01:52:26,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 01:52:26,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-04 01:52:26,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-05-04 01:52:26,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:52:26,174 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 01:52:26,174 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-04 01:52:26,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:52:26,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-04 01:52:26,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-04 01:52:26,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-05-04 01:52:26,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:52:26,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:52:26,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-04 01:52:26,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-04 01:52:26,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-04 01:52:26,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-04 01:52:26,412 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-05-04 01:52:26,413 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 01:52:26,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 01:52:26,413 INFO L82 PathProgramCache]: Analyzing trace with hash -953214674, now seen corresponding path program 5 times [2021-05-04 01:52:26,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 01:52:26,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108836598] [2021-05-04 01:52:26,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 01:52:26,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 01:52:26,864 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:52:26,864 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108836598] [2021-05-04 01:52:26,864 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1070102310] [2021-05-04 01:52:26,864 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 [2021-05-04 01:52:26,895 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-05-04 01:52:26,895 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-04 01:52:26,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 34 conjunts are in the unsatisfiable core [2021-05-04 01:52:26,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-04 01:52:27,383 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 01:52:27,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 53 [2021-05-04 01:52:27,390 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-04 01:52:27,427 INFO L628 ElimStorePlain]: treesize reduction 43, result has 62.3 percent of original size [2021-05-04 01:52:27,434 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-04 01:52:27,435 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:56, output treesize:39 [2021-05-04 01:52:28,264 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-05-04 01:52:28,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:28,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:28,537 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-04 01:52:28,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:28,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:28,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:28,539 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-04 01:52:28,542 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-04 01:52:28,544 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-04 01:52:28,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2021-05-04 01:52:28,546 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-04 01:52:28,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:28,551 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-04 01:52:28,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:28,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:28,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:28,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:28,555 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-04 01:52:28,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:28,556 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-04 01:52:28,559 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-04 01:52:28,562 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-04 01:52:28,564 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-04 01:52:28,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 1 [2021-05-04 01:52:28,565 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-04 01:52:28,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:28,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:28,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:28,569 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-04 01:52:28,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:28,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:28,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:28,572 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-04 01:52:28,573 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-04 01:52:28,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 16 [2021-05-04 01:52:28,576 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-04 01:52:28,580 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 01:52:28,583 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-04 01:52:28,583 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:147, output treesize:5 [2021-05-04 01:52:28,593 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:52:28,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-04 01:52:28,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 20] total 40 [2021-05-04 01:52:28,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287355073] [2021-05-04 01:52:28,598 INFO L460 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-05-04 01:52:28,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 01:52:28,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-05-04 01:52:28,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=1470, Unknown=0, NotChecked=0, Total=1640 [2021-05-04 01:52:28,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:52:28,599 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 01:52:28,600 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 41 states, 41 states have (on average 1.829268292682927) internal successors, (75), 40 states have internal predecessors, (75), 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) [2021-05-04 01:52:28,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:52:28,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-04 01:52:28,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-04 01:52:28,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-05-04 01:52:28,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-05-04 01:52:28,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:52:29,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:52:29,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-04 01:52:29,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-04 01:52:29,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-04 01:52:29,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-04 01:52:29,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-05-04 01:52:29,955 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-04 01:52:29,955 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 01:52:29,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 01:52:29,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1648772639, now seen corresponding path program 6 times [2021-05-04 01:52:29,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 01:52:29,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779877398] [2021-05-04 01:52:29,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 01:52:29,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 01:52:30,547 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:52:30,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779877398] [2021-05-04 01:52:30,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64552433] [2021-05-04 01:52:30,548 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 [2021-05-04 01:52:30,577 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-05-04 01:52:30,578 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-04 01:52:30,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 48 conjunts are in the unsatisfiable core [2021-05-04 01:52:30,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-04 01:52:31,152 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 01:52:31,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 87 [2021-05-04 01:52:31,163 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-04 01:52:31,248 INFO L628 ElimStorePlain]: treesize reduction 75, result has 63.9 percent of original size [2021-05-04 01:52:31,257 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-04 01:52:31,257 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:72, output treesize:68 [2021-05-04 01:52:32,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:32,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:32,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:32,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:32,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:32,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:32,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:32,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:32,257 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 01:52:32,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 44 treesize of output 88 [2021-05-04 01:52:32,348 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2021-05-04 01:52:32,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:32,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:32,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:32,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:32,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:32,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:32,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:32,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:32,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:32,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:32,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:32,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:32,427 INFO L354 Elim1Store]: treesize reduction 52, result has 45.3 percent of original size [2021-05-04 01:52:32,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 53 treesize of output 61 [2021-05-04 01:52:32,457 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-04 01:52:32,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:32,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:32,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:32,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:32,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:32,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:32,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:32,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:32,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:32,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:32,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:32,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:32,511 INFO L354 Elim1Store]: treesize reduction 50, result has 47.4 percent of original size [2021-05-04 01:52:32,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 55 treesize of output 63 [2021-05-04 01:52:32,524 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-04 01:52:32,620 INFO L628 ElimStorePlain]: treesize reduction 71, result has 64.0 percent of original size [2021-05-04 01:52:32,637 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-05-04 01:52:32,637 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:208, output treesize:55 [2021-05-04 01:52:32,729 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:52:32,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-04 01:52:32,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 27] total 52 [2021-05-04 01:52:32,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044481140] [2021-05-04 01:52:32,730 INFO L460 AbstractCegarLoop]: Interpolant automaton has 53 states [2021-05-04 01:52:32,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 01:52:32,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-05-04 01:52:32,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=299, Invalid=2457, Unknown=0, NotChecked=0, Total=2756 [2021-05-04 01:52:32,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:52:32,731 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 01:52:32,731 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 53 states, 53 states have (on average 1.7735849056603774) internal successors, (94), 52 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) [2021-05-04 01:52:32,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:52:32,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-04 01:52:32,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-04 01:52:32,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-05-04 01:52:32,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-05-04 01:52:32,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-05-04 01:52:32,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:52:34,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:52:34,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-04 01:52:34,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-04 01:52:34,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-04 01:52:34,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-04 01:52:34,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-05-04 01:52:34,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-04 01:52:34,828 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-04 01:52:34,828 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 01:52:34,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 01:52:34,837 INFO L82 PathProgramCache]: Analyzing trace with hash -1153761496, now seen corresponding path program 7 times [2021-05-04 01:52:34,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 01:52:34,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99988480] [2021-05-04 01:52:34,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 01:52:34,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 01:52:35,811 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:52:35,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99988480] [2021-05-04 01:52:35,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198868634] [2021-05-04 01:52:35,811 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 [2021-05-04 01:52:35,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 01:52:35,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 59 conjunts are in the unsatisfiable core [2021-05-04 01:52:35,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-04 01:52:36,683 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 01:52:36,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 77 treesize of output 129 [2021-05-04 01:52:36,697 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-04 01:52:36,824 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 71 [2021-05-04 01:52:36,824 INFO L628 ElimStorePlain]: treesize reduction 134, result has 60.6 percent of original size [2021-05-04 01:52:36,866 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-04 01:52:36,866 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:88, output treesize:79 [2021-05-04 01:52:37,581 INFO L354 Elim1Store]: treesize reduction 112, result has 0.9 percent of original size [2021-05-04 01:52:37,581 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 55 treesize of output 19 [2021-05-04 01:52:37,588 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-04 01:52:37,591 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 01:52:37,592 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-04 01:52:37,592 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:56, output treesize:5 [2021-05-04 01:52:37,604 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:52:37,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-04 01:52:37,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 32] total 62 [2021-05-04 01:52:37,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378815616] [2021-05-04 01:52:37,605 INFO L460 AbstractCegarLoop]: Interpolant automaton has 63 states [2021-05-04 01:52:37,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 01:52:37,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2021-05-04 01:52:37,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=408, Invalid=3498, Unknown=0, NotChecked=0, Total=3906 [2021-05-04 01:52:37,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:52:37,606 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 01:52:37,606 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 63 states, 63 states have (on average 1.6507936507936507) internal successors, (104), 62 states have internal predecessors, (104), 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) [2021-05-04 01:52:37,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:52:37,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-04 01:52:37,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-04 01:52:37,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-05-04 01:52:37,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-05-04 01:52:37,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-05-04 01:52:37,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-05-04 01:52:37,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:52:39,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:52:39,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-04 01:52:39,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-04 01:52:39,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-04 01:52:39,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-04 01:52:39,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-05-04 01:52:39,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-04 01:52:39,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-04 01:52:39,643 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable115 [2021-05-04 01:52:39,644 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 01:52:39,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 01:52:39,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1788894597, now seen corresponding path program 8 times [2021-05-04 01:52:39,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 01:52:39,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189554016] [2021-05-04 01:52:39,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 01:52:39,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 01:52:39,774 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 66 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:52:39,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189554016] [2021-05-04 01:52:39,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666873164] [2021-05-04 01:52:39,775 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 [2021-05-04 01:52:39,802 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-04 01:52:39,802 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-04 01:52:39,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 12 conjunts are in the unsatisfiable core [2021-05-04 01:52:39,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-04 01:52:39,882 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 66 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:52:39,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-04 01:52:39,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7] total 14 [2021-05-04 01:52:39,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278090282] [2021-05-04 01:52:39,883 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-05-04 01:52:39,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 01:52:39,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-05-04 01:52:39,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=126, Unknown=0, NotChecked=0, Total=210 [2021-05-04 01:52:39,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:52:39,883 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 01:52:39,883 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 6.466666666666667) internal successors, (97), 14 states have internal predecessors, (97), 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) [2021-05-04 01:52:39,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:52:39,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-04 01:52:39,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-04 01:52:39,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-05-04 01:52:39,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-05-04 01:52:39,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-05-04 01:52:39,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-05-04 01:52:39,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-05-04 01:52:39,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:52:39,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:52:39,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-04 01:52:39,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-04 01:52:39,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-04 01:52:39,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-04 01:52:39,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-05-04 01:52:39,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-04 01:52:39,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-04 01:52:39,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-05-04 01:52:40,136 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-04 01:52:40,136 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 01:52:40,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 01:52:40,137 INFO L82 PathProgramCache]: Analyzing trace with hash -366499493, now seen corresponding path program 9 times [2021-05-04 01:52:40,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 01:52:40,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43315225] [2021-05-04 01:52:40,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 01:52:40,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 01:52:41,428 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:52:41,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43315225] [2021-05-04 01:52:41,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576423863] [2021-05-04 01:52:41,428 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 [2021-05-04 01:52:41,509 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-05-04 01:52:41,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-04 01:52:41,511 WARN L261 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 72 conjunts are in the unsatisfiable core [2021-05-04 01:52:41,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-04 01:52:42,908 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 01:52:42,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 93 treesize of output 179 [2021-05-04 01:52:42,939 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-04 01:52:43,154 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 100 [2021-05-04 01:52:43,155 INFO L628 ElimStorePlain]: treesize reduction 168, result has 65.4 percent of original size [2021-05-04 01:52:43,199 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-04 01:52:43,199 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:104, output treesize:117 [2021-05-04 01:52:44,579 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-05-04 01:52:45,316 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-04 01:52:45,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:45,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:45,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:45,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:45,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:45,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:45,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:45,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:45,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:45,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:45,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:45,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:45,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:45,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:45,662 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-04 01:52:45,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:45,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:45,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:45,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:45,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:45,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:45,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:45,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:45,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:45,699 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-04 01:52:45,804 INFO L354 Elim1Store]: treesize reduction 52, result has 66.9 percent of original size [2021-05-04 01:52:45,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 22 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 17 case distinctions, treesize of input 77 treesize of output 129 [2021-05-04 01:52:46,015 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-04 01:52:46,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,203 INFO L354 Elim1Store]: treesize reduction 114, result has 44.4 percent of original size [2021-05-04 01:52:46,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 27 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 18 case distinctions, treesize of input 79 treesize of output 115 [2021-05-04 01:52:46,252 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-04 01:52:46,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,389 INFO L354 Elim1Store]: treesize reduction 104, result has 38.5 percent of original size [2021-05-04 01:52:46,389 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 21 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 15 case distinctions, treesize of input 79 treesize of output 89 [2021-05-04 01:52:46,407 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-04 01:52:46,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:52:46,491 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 01:52:46,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 17 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 11 case distinctions, treesize of input 68 treesize of output 142 [2021-05-04 01:52:47,388 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 3 xjuncts. [2021-05-04 01:52:47,673 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 64 [2021-05-04 01:52:47,674 INFO L628 ElimStorePlain]: treesize reduction 506, result has 29.4 percent of original size [2021-05-04 01:52:47,694 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, End of recursive call: and 6 xjuncts. [2021-05-04 01:52:47,695 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:377, output treesize:118 [2021-05-04 01:52:47,860 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:52:47,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-04 01:52:47,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 39] total 78 [2021-05-04 01:52:47,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805718473] [2021-05-04 01:52:47,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 79 states [2021-05-04 01:52:47,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 01:52:47,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2021-05-04 01:52:47,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=573, Invalid=5589, Unknown=0, NotChecked=0, Total=6162 [2021-05-04 01:52:47,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:52:47,863 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 01:52:47,863 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 79 states, 79 states have (on average 1.6455696202531647) internal successors, (130), 78 states have internal predecessors, (130), 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) [2021-05-04 01:52:47,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:52:47,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-04 01:52:47,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-04 01:52:47,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-05-04 01:52:47,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-05-04 01:52:47,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-05-04 01:52:47,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-05-04 01:52:47,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-05-04 01:52:47,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-05-04 01:52:47,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:52:50,558 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-05-04 01:52:52,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:52:52,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-04 01:52:52,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-04 01:52:52,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-04 01:52:52,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-04 01:52:52,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-05-04 01:52:52,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-04 01:52:52,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-04 01:52:52,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-05-04 01:52:52,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-05-04 01:52:52,532 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-04 01:52:52,532 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 01:52:52,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 01:52:52,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1675123490, now seen corresponding path program 10 times [2021-05-04 01:52:52,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 01:52:52,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402036187] [2021-05-04 01:52:52,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 01:52:52,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 01:52:54,305 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 203 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:52:54,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402036187] [2021-05-04 01:52:54,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81447463] [2021-05-04 01:52:54,305 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 [2021-05-04 01:52:54,339 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-04 01:52:54,340 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-04 01:52:54,341 WARN L261 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 83 conjunts are in the unsatisfiable core [2021-05-04 01:52:54,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-04 01:52:58,978 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-05-04 01:52:58,978 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 01:52:58,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 109 treesize of output 237 [2021-05-04 01:52:59,024 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-04 01:52:59,331 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 124 [2021-05-04 01:52:59,331 INFO L628 ElimStorePlain]: treesize reduction 294, result has 58.0 percent of original size [2021-05-04 01:52:59,517 INFO L550 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-04 01:52:59,517 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 9 variables, input treesize:120, output treesize:105 [2021-05-04 01:53:01,117 INFO L354 Elim1Store]: treesize reduction 240, result has 0.4 percent of original size [2021-05-04 01:53:01,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 77 treesize of output 25 [2021-05-04 01:53:01,124 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-04 01:53:01,127 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 01:53:01,128 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-04 01:53:01,128 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:78, output treesize:5 [2021-05-04 01:53:01,138 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 203 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:53:01,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-04 01:53:01,138 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 44] total 88 [2021-05-04 01:53:01,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705653525] [2021-05-04 01:53:01,139 INFO L460 AbstractCegarLoop]: Interpolant automaton has 89 states [2021-05-04 01:53:01,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 01:53:01,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2021-05-04 01:53:01,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=697, Invalid=7135, Unknown=0, NotChecked=0, Total=7832 [2021-05-04 01:53:01,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:53:01,141 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 01:53:01,141 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 89 states, 89 states have (on average 1.5730337078651686) internal successors, (140), 88 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-04 01:53:01,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:53:01,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-04 01:53:01,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-04 01:53:01,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-05-04 01:53:01,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-05-04 01:53:01,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-05-04 01:53:01,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-05-04 01:53:01,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-05-04 01:53:01,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-05-04 01:53:01,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-05-04 01:53:01,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:53:03,906 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-05-04 01:53:23,023 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2021-05-04 01:53:23,225 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable745 [2021-05-04 01:53:23,225 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:226) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:153) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkValidity(IncrementalHoareTripleChecker.java:676) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkInternal(IncrementalHoareTripleChecker.java:143) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ProtectiveHoareTripleChecker.checkInternal(ProtectiveHoareTripleChecker.java:61) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.EfficientHoareTripleChecker.checkInternal(EfficientHoareTripleChecker.java:63) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:357) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.addOtherSuccessors(DeterministicInterpolantAutomaton.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.partialorder.DepthFirstTraversal.visitState(DepthFirstTraversal.java:153) at de.uni_freiburg.informatik.ultimate.automata.partialorder.DepthFirstTraversal.traverse(DepthFirstTraversal.java:104) at de.uni_freiburg.informatik.ultimate.automata.partialorder.DepthFirstTraversal.(DepthFirstTraversal.java:79) at de.uni_freiburg.informatik.ultimate.automata.partialorder.PersistentSetReduction.applyWithoutSleepSets(PersistentSetReduction.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isAbstractionEmpty(PartialOrderCegarLoop.java:218) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:507) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:63) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateAllErrorsAtOnce(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:206) ... 42 more [2021-05-04 01:53:23,230 INFO L168 Benchmark]: Toolchain (without parser) took 60775.11 ms. Allocated memory was 337.6 MB in the beginning and 406.8 MB in the end (delta: 69.2 MB). Free memory was 317.8 MB in the beginning and 191.2 MB in the end (delta: 126.6 MB). Peak memory consumption was 201.0 MB. Max. memory is 16.0 GB. [2021-05-04 01:53:23,231 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 337.6 MB. Free memory is still 319.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-05-04 01:53:23,231 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.73 ms. Allocated memory is still 337.6 MB. Free memory was 317.7 MB in the beginning and 316.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-05-04 01:53:23,231 INFO L168 Benchmark]: Boogie Preprocessor took 14.16 ms. Allocated memory is still 337.6 MB. Free memory was 316.3 MB in the beginning and 315.4 MB in the end (delta: 871.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-04 01:53:23,231 INFO L168 Benchmark]: RCFGBuilder took 178.06 ms. Allocated memory is still 337.6 MB. Free memory was 315.3 MB in the beginning and 302.4 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-05-04 01:53:23,231 INFO L168 Benchmark]: TraceAbstraction took 60519.90 ms. Allocated memory was 337.6 MB in the beginning and 406.8 MB in the end (delta: 69.2 MB). Free memory was 302.0 MB in the beginning and 191.2 MB in the end (delta: 110.8 MB). Peak memory consumption was 182.1 MB. Max. memory is 16.0 GB. [2021-05-04 01:53:23,231 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 337.6 MB. Free memory is still 319.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 57.73 ms. Allocated memory is still 337.6 MB. Free memory was 317.7 MB in the beginning and 316.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 14.16 ms. Allocated memory is still 337.6 MB. Free memory was 316.3 MB in the beginning and 315.4 MB in the end (delta: 871.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 178.06 ms. Allocated memory is still 337.6 MB. Free memory was 315.3 MB in the beginning and 302.4 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 60519.90 ms. Allocated memory was 337.6 MB in the beginning and 406.8 MB in the end (delta: 69.2 MB). Free memory was 302.0 MB in the beginning and 191.2 MB in the end (delta: 110.8 MB). Peak memory consumption was 182.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...