/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array-hom.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-06 17:39:43,092 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-06 17:39:43,094 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-06 17:39:43,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-06 17:39:43,122 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-06 17:39:43,124 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-06 17:39:43,126 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-06 17:39:43,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-06 17:39:43,133 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-06 17:39:43,134 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-06 17:39:43,135 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-06 17:39:43,136 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-06 17:39:43,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-06 17:39:43,141 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-06 17:39:43,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-06 17:39:43,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-06 17:39:43,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-06 17:39:43,142 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-06 17:39:43,143 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-06 17:39:43,144 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-06 17:39:43,145 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-06 17:39:43,147 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-06 17:39:43,150 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-06 17:39:43,152 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-06 17:39:43,155 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-06 17:39:43,155 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-06 17:39:43,156 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-06 17:39:43,156 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-06 17:39:43,156 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-06 17:39:43,157 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-06 17:39:43,157 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-06 17:39:43,162 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-06 17:39:43,163 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-06 17:39:43,164 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-06 17:39:43,164 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-06 17:39:43,164 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-06 17:39:43,165 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-06 17:39:43,165 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-06 17:39:43,165 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-06 17:39:43,165 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-06 17:39:43,166 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-06 17:39:43,169 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Random42.epf [2021-06-06 17:39:43,192 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-06 17:39:43,192 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-06 17:39:43,193 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-06 17:39:43,193 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-06 17:39:43,195 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-06 17:39:43,195 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-06 17:39:43,195 INFO L138 SettingsManager]: * Use SBE=true [2021-06-06 17:39:43,195 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-06 17:39:43,195 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-06 17:39:43,195 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-06 17:39:43,196 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-06 17:39:43,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-06 17:39:43,196 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-06 17:39:43,196 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-06 17:39:43,196 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-06 17:39:43,196 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-06 17:39:43,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-06 17:39:43,196 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-06 17:39:43,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-06 17:39:43,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-06 17:39:43,197 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-06 17:39:43,197 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-06 17:39:43,197 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-06 17:39:43,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 17:39:43,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-06 17:39:43,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-06 17:39:43,197 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-06 17:39:43,197 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-06 17:39:43,197 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-06 17:39:43,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-06 17:39:43,197 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-06 17:39:43,197 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-06 17:39:43,198 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-06 17:39:43,198 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-06 17:39:43,198 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-06 17:39:43,198 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-06 17:39:43,407 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-06 17:39:43,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-06 17:39:43,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-06 17:39:43,427 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-06 17:39:43,429 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-06 17:39:43,429 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array-hom.wvr.bpl [2021-06-06 17:39:43,429 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array-hom.wvr.bpl' [2021-06-06 17:39:43,445 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-06 17:39:43,446 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-06 17:39:43,447 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-06 17:39:43,447 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-06 17:39:43,447 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-06 17:39:43,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:39:43" (1/1) ... [2021-06-06 17:39:43,461 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:39:43" (1/1) ... [2021-06-06 17:39:43,466 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-06 17:39:43,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-06 17:39:43,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-06 17:39:43,468 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-06 17:39:43,472 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:39:43" (1/1) ... [2021-06-06 17:39:43,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:39:43" (1/1) ... [2021-06-06 17:39:43,474 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:39:43" (1/1) ... [2021-06-06 17:39:43,474 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:39:43" (1/1) ... [2021-06-06 17:39:43,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:39:43" (1/1) ... [2021-06-06 17:39:43,478 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:39:43" (1/1) ... [2021-06-06 17:39:43,479 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:39:43" (1/1) ... [2021-06-06 17:39:43,480 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-06 17:39:43,480 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-06 17:39:43,480 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-06 17:39:43,480 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-06 17:39:43,481 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:39:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 17:39:43,529 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-06 17:39:43,529 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-06 17:39:43,529 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-06 17:39:43,529 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-06 17:39:43,530 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-06 17:39:43,530 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-06 17:39:43,530 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-06 17:39:43,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-06 17:39:43,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-06 17:39:43,530 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-06 17:39:43,530 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-06 17:39:43,530 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-06 17:39:43,531 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-06 17:39:43,652 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-06 17:39:43,653 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-06 17:39:43,654 INFO L202 PluginConnector]: Adding new model sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 05:39:43 BoogieIcfgContainer [2021-06-06 17:39:43,654 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-06 17:39:43,655 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-06 17:39:43,655 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-06 17:39:43,657 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-06 17:39:43,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:39:43" (1/2) ... [2021-06-06 17:39:43,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bfb54df and model type sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.06 05:39:43, skipping insertion in model container [2021-06-06 17:39:43,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 05:39:43" (2/2) ... [2021-06-06 17:39:43,658 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-array-hom.wvr.bpl [2021-06-06 17:39:43,662 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-06 17:39:43,662 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-06 17:39:43,663 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-06 17:39:43,663 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-06 17:39:43,688 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-06 17:39:43,701 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-06 17:39:43,749 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-06 17:39:43,750 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-06 17:39:43,750 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-06 17:39:43,750 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-06 17:39:43,750 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-06 17:39:43,750 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-06 17:39:43,750 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-06 17:39:43,750 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-06 17:39:43,783 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:39:43,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:39:43,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1911864892, now seen corresponding path program 1 times [2021-06-06 17:39:43,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:39:43,792 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018836997] [2021-06-06 17:39:43,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:39:43,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:39:43,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:39:43,963 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:39:43,963 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018836997] [2021-06-06 17:39:43,964 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018836997] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 17:39:43,964 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 17:39:43,964 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-06 17:39:43,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18070665] [2021-06-06 17:39:43,967 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-06 17:39:43,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:39:43,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-06 17:39:43,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-06-06 17:39:43,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:39:43,978 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:39:43,982 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 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) [2021-06-06 17:39:43,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:39:44,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:39:44,058 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-06 17:39:44,058 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:39:44,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:39:44,061 INFO L82 PathProgramCache]: Analyzing trace with hash 286975282, now seen corresponding path program 1 times [2021-06-06 17:39:44,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:39:44,062 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178126850] [2021-06-06 17:39:44,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:39:44,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:39:44,120 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 17:39:44,120 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:39:44,120 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178126850] [2021-06-06 17:39:44,120 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178126850] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 17:39:44,120 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 17:39:44,121 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-06 17:39:44,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545528488] [2021-06-06 17:39:44,122 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-06 17:39:44,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:39:44,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-06 17:39:44,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-06 17:39:44,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:39:44,123 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:39:44,123 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 17:39:44,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:39:44,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:39:44,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:39:44,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:39:44,174 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-06 17:39:44,174 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:39:44,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:39:44,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1420874500, now seen corresponding path program 1 times [2021-06-06 17:39:44,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:39:44,176 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154143916] [2021-06-06 17:39:44,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:39:44,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:39:44,465 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:39:44,466 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:39:44,466 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154143916] [2021-06-06 17:39:44,466 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154143916] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:39:44,466 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735921708] [2021-06-06 17:39:44,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:39:44,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:39:44,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 18 conjunts are in the unsatisfiable core [2021-06-06 17:39:44,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:39:44,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-06-06 17:39:44,725 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 17:39:44,730 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:39:44,733 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:39:44,733 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:7 [2021-06-06 17:39:44,768 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:39:44,768 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735921708] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:39:44,768 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:39:44,768 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-06-06 17:39:44,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90514649] [2021-06-06 17:39:44,769 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-06 17:39:44,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:39:44,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-06 17:39:44,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-06-06 17:39:44,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:39:44,772 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:39:44,772 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 17:39:44,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:39:44,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:39:44,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:39:44,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:39:44,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:39:44,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:39:45,120 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:39:45,120 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:39:45,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:39:45,121 INFO L82 PathProgramCache]: Analyzing trace with hash 778556826, now seen corresponding path program 2 times [2021-06-06 17:39:45,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:39:45,121 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275835964] [2021-06-06 17:39:45,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:39:45,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:39:45,159 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:39:45,160 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:39:45,160 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275835964] [2021-06-06 17:39:45,160 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275835964] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:39:45,160 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746046400] [2021-06-06 17:39:45,160 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:39:45,208 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 17:39:45,209 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:39:45,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-06 17:39:45,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:39:45,282 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:39:45,282 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [746046400] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:39:45,282 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:39:45,282 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2021-06-06 17:39:45,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121880821] [2021-06-06 17:39:45,283 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-06 17:39:45,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:39:45,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-06 17:39:45,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-06-06 17:39:45,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:39:45,284 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:39:45,284 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 17:39:45,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:39:45,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:39:45,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:39:45,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:39:45,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:39:45,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:39:45,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:39:45,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:39:45,580 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:39:45,581 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:39:45,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:39:45,581 INFO L82 PathProgramCache]: Analyzing trace with hash 1305674936, now seen corresponding path program 3 times [2021-06-06 17:39:45,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:39:45,582 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623687630] [2021-06-06 17:39:45,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:39:45,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:39:45,857 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:39:45,857 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:39:45,857 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623687630] [2021-06-06 17:39:45,858 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623687630] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:39:45,858 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47451766] [2021-06-06 17:39:45,858 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:39:45,890 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-06 17:39:45,890 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:39:45,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-06 17:39:45,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:39:46,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:46,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2021-06-06 17:39:46,047 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 17:39:46,053 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:39:46,056 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:39:46,056 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:32, output treesize:7 [2021-06-06 17:39:46,081 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:39:46,081 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47451766] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:39:46,081 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:39:46,081 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 15 [2021-06-06 17:39:46,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434463739] [2021-06-06 17:39:46,082 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-06 17:39:46,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:39:46,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-06 17:39:46,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2021-06-06 17:39:46,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:39:46,083 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:39:46,083 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.5) internal successors, (40), 15 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 17:39:46,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:39:46,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:39:46,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:39:46,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:39:46,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:39:46,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:39:46,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:39:46,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:39:46,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:39:46,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:39:46,591 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:39:46,592 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:39:46,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:39:46,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1528653940, now seen corresponding path program 4 times [2021-06-06 17:39:46,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:39:46,592 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371250451] [2021-06-06 17:39:46,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:39:46,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:39:46,649 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:39:46,650 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:39:46,650 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371250451] [2021-06-06 17:39:46,652 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371250451] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:39:46,652 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538386831] [2021-06-06 17:39:46,652 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:39:46,696 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 17:39:46,696 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:39:46,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-06 17:39:46,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:39:46,770 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:39:46,771 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538386831] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:39:46,771 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:39:46,771 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 13 [2021-06-06 17:39:46,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796176559] [2021-06-06 17:39:46,771 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-06 17:39:46,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:39:46,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-06 17:39:46,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-06-06 17:39:46,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:39:46,772 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:39:46,772 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 13 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 17:39:46,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:39:46,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:39:46,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:39:46,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:39:46,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:39:46,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:39:46,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:39:46,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:39:46,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:39:46,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:39:46,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:39:46,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:39:47,140 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-06-06 17:39:47,140 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:39:47,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:39:47,141 INFO L82 PathProgramCache]: Analyzing trace with hash 594495762, now seen corresponding path program 5 times [2021-06-06 17:39:47,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:39:47,141 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647712476] [2021-06-06 17:39:47,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:39:47,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:39:47,205 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:39:47,205 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:39:47,205 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647712476] [2021-06-06 17:39:47,205 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647712476] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:39:47,206 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900053341] [2021-06-06 17:39:47,206 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:39:47,249 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-06-06 17:39:47,249 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:39:47,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-06 17:39:47,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:39:47,325 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:39:47,325 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900053341] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:39:47,326 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:39:47,326 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 14 [2021-06-06 17:39:47,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614684489] [2021-06-06 17:39:47,327 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-06 17:39:47,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:39:47,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-06 17:39:47,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-06-06 17:39:47,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:39:47,331 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:39:47,331 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 2.642857142857143) internal successors, (37), 14 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 17:39:47,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:39:47,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:39:47,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:39:47,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:39:47,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:39:47,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:39:47,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:39:47,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:39:47,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:39:47,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:39:47,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:39:47,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:39:47,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:39:47,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:39:47,761 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:39:47,761 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:39:47,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:39:47,761 INFO L82 PathProgramCache]: Analyzing trace with hash 516651568, now seen corresponding path program 6 times [2021-06-06 17:39:47,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:39:47,761 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528503695] [2021-06-06 17:39:47,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:39:47,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:39:48,272 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:39:48,273 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:39:48,273 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528503695] [2021-06-06 17:39:48,273 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528503695] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:39:48,273 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313058131] [2021-06-06 17:39:48,273 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:39:48,306 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-06-06 17:39:48,306 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:39:48,307 WARN L261 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 45 conjunts are in the unsatisfiable core [2021-06-06 17:39:48,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:39:48,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:48,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:48,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:48,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:48,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:48,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:48,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 15 [2021-06-06 17:39:48,712 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 17:39:48,717 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:39:48,718 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:39:48,718 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:52, output treesize:7 [2021-06-06 17:39:48,747 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:39:48,747 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1313058131] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:39:48,747 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:39:48,748 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 26 [2021-06-06 17:39:48,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396794458] [2021-06-06 17:39:48,748 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-06 17:39:48,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:39:48,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-06 17:39:48,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=615, Unknown=0, NotChecked=0, Total=702 [2021-06-06 17:39:48,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:39:48,749 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:39:48,749 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 2.111111111111111) internal successors, (57), 26 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 17:39:48,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:39:48,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:39:48,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:39:48,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:39:48,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:39:48,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:39:48,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:39:48,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:39:49,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:39:49,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:39:49,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:39:49,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:39:49,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:39:49,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:39:49,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:39:49,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:39:50,196 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:39:50,196 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:39:50,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:39:50,197 INFO L82 PathProgramCache]: Analyzing trace with hash 1612584940, now seen corresponding path program 7 times [2021-06-06 17:39:50,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:39:50,197 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264291241] [2021-06-06 17:39:50,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:39:50,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:39:50,801 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 4 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:39:50,801 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:39:50,801 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264291241] [2021-06-06 17:39:50,801 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264291241] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:39:50,801 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [677549102] [2021-06-06 17:39:50,801 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:39:50,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:39:50,830 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 50 conjunts are in the unsatisfiable core [2021-06-06 17:39:50,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:39:51,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:51,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:51,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:51,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:51,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:51,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:51,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:51,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:51,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:51,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:51,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 17 [2021-06-06 17:39:51,212 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 17:39:51,216 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:39:51,220 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:39:51,220 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:62, output treesize:7 [2021-06-06 17:39:51,269 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:39:51,269 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [677549102] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:39:51,269 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:39:51,269 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15] total 28 [2021-06-06 17:39:51,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050894174] [2021-06-06 17:39:51,269 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-06-06 17:39:51,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:39:51,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-06-06 17:39:51,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=711, Unknown=0, NotChecked=0, Total=812 [2021-06-06 17:39:51,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:39:51,270 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:39:51,270 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.2413793103448274) internal successors, (65), 28 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 17:39:51,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:39:51,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:39:51,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:39:51,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:39:51,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:39:51,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:39:51,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:39:51,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:39:51,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:39:52,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:39:52,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:39:52,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:39:52,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:39:52,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:39:52,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:39:52,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:39:52,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:39:52,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:39:52,732 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-06-06 17:39:52,733 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:39:52,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:39:52,733 INFO L82 PathProgramCache]: Analyzing trace with hash -1754728536, now seen corresponding path program 8 times [2021-06-06 17:39:52,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:39:52,733 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506929258] [2021-06-06 17:39:52,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:39:52,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:39:53,355 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:39:53,355 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:39:53,355 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506929258] [2021-06-06 17:39:53,355 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506929258] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:39:53,355 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90583780] [2021-06-06 17:39:53,355 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:39:53,387 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 17:39:53,387 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:39:53,388 WARN L261 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 64 conjunts are in the unsatisfiable core [2021-06-06 17:39:53,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:39:53,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:53,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:53,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:53,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:53,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:53,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:53,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:53,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:53,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:53,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:53,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:53,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:53,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:53,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:53,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:53,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 19 [2021-06-06 17:39:53,947 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 17:39:53,955 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:39:53,956 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:39:53,956 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:85, output treesize:21 [2021-06-06 17:39:54,031 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:39:54,031 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [90583780] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:39:54,031 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:39:54,031 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 20] total 35 [2021-06-06 17:39:54,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943380886] [2021-06-06 17:39:54,032 INFO L462 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-06-06 17:39:54,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:39:54,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-06-06 17:39:54,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=1081, Unknown=0, NotChecked=0, Total=1260 [2021-06-06 17:39:54,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:39:54,033 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:39:54,033 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 2.0277777777777777) internal successors, (73), 35 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 17:39:54,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:39:54,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:39:54,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:39:54,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:39:54,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:39:54,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:39:54,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:39:54,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:39:54,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:39:54,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:39:55,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:39:55,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:39:55,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:39:55,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:39:55,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:39:55,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:39:55,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:39:55,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:39:55,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:39:55,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:39:55,600 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:39:55,601 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:39:55,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:39:55,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1935350116, now seen corresponding path program 9 times [2021-06-06 17:39:55,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:39:55,601 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805047160] [2021-06-06 17:39:55,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:39:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:39:56,338 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 16 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:39:56,338 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:39:56,338 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805047160] [2021-06-06 17:39:56,338 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805047160] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:39:56,338 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640517544] [2021-06-06 17:39:56,338 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:39:56,380 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-06-06 17:39:56,380 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:39:56,381 WARN L261 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 72 conjunts are in the unsatisfiable core [2021-06-06 17:39:56,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:39:57,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:57,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:57,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:57,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:57,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:57,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:57,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:57,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:57,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:57,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:57,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:57,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:57,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:57,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:57,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:57,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:57,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:57,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:57,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:57,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:57,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:39:57,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 21 [2021-06-06 17:39:57,087 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 17:39:57,094 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:39:57,095 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:39:57,095 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:95, output treesize:21 [2021-06-06 17:39:57,156 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:39:57,157 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640517544] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:39:57,157 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:39:57,157 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 22] total 39 [2021-06-06 17:39:57,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771188143] [2021-06-06 17:39:57,157 INFO L462 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-06-06 17:39:57,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:39:57,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-06-06 17:39:57,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=1348, Unknown=0, NotChecked=0, Total=1560 [2021-06-06 17:39:57,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:39:57,158 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:39:57,158 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 40 states, 40 states have (on average 2.025) internal successors, (81), 39 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 17:39:57,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:39:57,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:39:57,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:39:57,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:39:57,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:39:57,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:39:57,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:39:57,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:39:57,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:39:57,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:39:57,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:39:58,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:39:58,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:39:58,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:39:58,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:39:58,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:39:58,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:39:58,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:39:58,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:39:58,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:39:58,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:39:58,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:39:59,039 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:39:59,040 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:39:59,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:39:59,040 INFO L82 PathProgramCache]: Analyzing trace with hash 186875168, now seen corresponding path program 10 times [2021-06-06 17:39:59,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:39:59,040 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008135478] [2021-06-06 17:39:59,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:39:59,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:39:59,910 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 11 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:39:59,910 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:39:59,910 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008135478] [2021-06-06 17:39:59,910 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008135478] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:39:59,910 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271139576] [2021-06-06 17:39:59,910 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:39:59,945 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 17:39:59,945 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:39:59,946 WARN L261 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 74 conjunts are in the unsatisfiable core [2021-06-06 17:39:59,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:40:00,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:00,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:00,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:00,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:00,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:00,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:00,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:00,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:00,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:00,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:00,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:00,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:00,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:00,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:00,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:00,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:00,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:00,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:00,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:00,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:00,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:00,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:00,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:00,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:00,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:00,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:00,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:00,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:00,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 23 [2021-06-06 17:40:00,676 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 17:40:00,680 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:40:00,681 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:40:00,681 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:92, output treesize:7 [2021-06-06 17:40:00,707 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:40:00,707 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1271139576] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:40:00,707 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:40:00,707 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 21] total 40 [2021-06-06 17:40:00,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392258595] [2021-06-06 17:40:00,707 INFO L462 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-06-06 17:40:00,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:40:00,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-06-06 17:40:00,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=1472, Unknown=0, NotChecked=0, Total=1640 [2021-06-06 17:40:00,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:40:00,708 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:40:00,708 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 41 states, 41 states have (on average 2.1707317073170733) internal successors, (89), 40 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 17:40:00,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:40:00,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:40:00,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:40:00,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:40:00,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:40:00,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:40:00,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:40:00,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:40:00,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:40:00,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:40:00,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:40:00,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:40:03,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:40:03,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:40:03,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:40:03,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:40:03,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:40:03,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:40:03,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:40:03,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:40:03,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:40:03,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:40:03,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:40:03,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:40:03,308 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-06-06 17:40:03,311 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:40:03,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:40:03,311 INFO L82 PathProgramCache]: Analyzing trace with hash -1636752676, now seen corresponding path program 11 times [2021-06-06 17:40:03,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:40:03,311 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100944141] [2021-06-06 17:40:03,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:40:03,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:40:04,289 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 36 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:40:04,289 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:40:04,289 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100944141] [2021-06-06 17:40:04,289 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100944141] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:40:04,289 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368011739] [2021-06-06 17:40:04,289 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:40:04,329 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2021-06-06 17:40:04,329 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:40:04,330 WARN L261 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 82 conjunts are in the unsatisfiable core [2021-06-06 17:40:04,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:40:05,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:05,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:05,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:05,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:05,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:05,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:05,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:05,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:05,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:05,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:05,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:05,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:05,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:05,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:05,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:05,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:05,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:05,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:05,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:05,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:05,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:05,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:05,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:05,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:05,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:05,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:05,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:05,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:05,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:05,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:05,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:05,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:05,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:05,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:05,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:05,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:05,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 25 [2021-06-06 17:40:05,250 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 17:40:05,255 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:40:05,256 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:40:05,256 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:102, output treesize:7 [2021-06-06 17:40:05,285 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:40:05,285 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368011739] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:40:05,285 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:40:05,286 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 23] total 44 [2021-06-06 17:40:05,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258269825] [2021-06-06 17:40:05,286 INFO L462 AbstractCegarLoop]: Interpolant automaton has 45 states [2021-06-06 17:40:05,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:40:05,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-06-06 17:40:05,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=1773, Unknown=0, NotChecked=0, Total=1980 [2021-06-06 17:40:05,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:40:05,287 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:40:05,287 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 45 states, 45 states have (on average 2.1555555555555554) internal successors, (97), 44 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) [2021-06-06 17:40:05,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:40:05,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:40:05,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:40:05,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:40:05,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:40:05,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:40:05,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:40:05,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:40:05,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:40:05,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:40:05,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:40:05,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:40:05,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:40:07,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:40:07,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:40:07,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:40:07,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:40:07,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:40:07,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:40:07,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:40:07,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:40:07,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:40:07,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:40:07,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:40:07,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:40:07,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-06 17:40:08,165 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-06-06 17:40:08,166 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:40:08,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:40:08,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1433602712, now seen corresponding path program 12 times [2021-06-06 17:40:08,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:40:08,166 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376978010] [2021-06-06 17:40:08,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:40:08,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:40:09,211 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 36 proven. 164 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:40:09,211 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:40:09,211 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376978010] [2021-06-06 17:40:09,212 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376978010] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:40:09,212 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416368880] [2021-06-06 17:40:09,212 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:40:09,275 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2021-06-06 17:40:09,276 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:40:09,277 WARN L261 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 97 conjunts are in the unsatisfiable core [2021-06-06 17:40:09,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:40:10,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:10,923 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:40:10,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 63 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 3 case distinctions, treesize of input 103 treesize of output 57 [2021-06-06 17:40:10,937 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-06-06 17:40:10,949 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:40:10,959 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:40:10,959 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:128, output treesize:30 [2021-06-06 17:40:11,061 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:40:11,061 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1416368880] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:40:11,061 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:40:11,062 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 29] total 51 [2021-06-06 17:40:11,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941851331] [2021-06-06 17:40:11,062 INFO L462 AbstractCegarLoop]: Interpolant automaton has 52 states [2021-06-06 17:40:11,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:40:11,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-06-06 17:40:11,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=226, Invalid=2426, Unknown=0, NotChecked=0, Total=2652 [2021-06-06 17:40:11,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:40:11,063 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:40:11,063 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 52 states, 52 states have (on average 2.0) internal successors, (104), 51 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) [2021-06-06 17:40:11,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:40:11,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:40:11,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:40:11,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:40:11,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:40:11,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:40:11,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:40:11,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:40:11,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:40:11,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:40:11,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:40:11,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:40:11,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-06 17:40:11,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:40:13,904 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2021-06-06 17:40:14,123 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 109 [2021-06-06 17:40:15,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:40:15,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:40:15,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:40:15,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:40:15,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:40:15,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:40:15,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:40:15,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:40:15,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:40:15,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:40:15,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:40:15,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:40:15,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-06 17:40:15,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-06 17:40:15,428 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-06-06 17:40:15,428 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:40:15,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:40:15,428 INFO L82 PathProgramCache]: Analyzing trace with hash 14169172, now seen corresponding path program 13 times [2021-06-06 17:40:15,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:40:15,429 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776514135] [2021-06-06 17:40:15,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:40:15,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:40:16,670 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 38 proven. 204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:40:16,671 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:40:16,671 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776514135] [2021-06-06 17:40:16,671 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776514135] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:40:16,671 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781237734] [2021-06-06 17:40:16,671 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:40:16,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:40:16,725 WARN L261 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 98 conjunts are in the unsatisfiable core [2021-06-06 17:40:16,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:40:17,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:17,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:18,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:18,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:18,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:18,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:18,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:18,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:18,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:18,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:18,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:18,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 55 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 29 [2021-06-06 17:40:18,008 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 17:40:18,012 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:40:18,013 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:40:18,013 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:122, output treesize:7 [2021-06-06 17:40:18,042 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:40:18,042 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781237734] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:40:18,042 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:40:18,042 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 27] total 52 [2021-06-06 17:40:18,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718907162] [2021-06-06 17:40:18,042 INFO L462 AbstractCegarLoop]: Interpolant automaton has 53 states [2021-06-06 17:40:18,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:40:18,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-06-06 17:40:18,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=264, Invalid=2492, Unknown=0, NotChecked=0, Total=2756 [2021-06-06 17:40:18,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:40:18,043 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:40:18,044 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 53 states, 53 states have (on average 2.1320754716981134) internal successors, (113), 52 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 17:40:18,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:40:18,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:40:18,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:40:18,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:40:18,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:40:18,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:40:18,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:40:18,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:40:18,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:40:18,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:40:18,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:40:18,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:40:18,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-06 17:40:18,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-06-06 17:40:18,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:40:21,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:40:21,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:40:21,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:40:21,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:40:21,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:40:21,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:40:21,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:40:21,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:40:21,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:40:21,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:40:21,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:40:21,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:40:21,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-06 17:40:21,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-06 17:40:21,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-06 17:40:21,797 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:40:21,797 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:40:21,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:40:21,798 INFO L82 PathProgramCache]: Analyzing trace with hash -640704496, now seen corresponding path program 14 times [2021-06-06 17:40:21,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:40:21,798 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003869027] [2021-06-06 17:40:21,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:40:21,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:40:23,061 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 42 proven. 246 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:40:23,061 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:40:23,061 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003869027] [2021-06-06 17:40:23,061 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003869027] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:40:23,061 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834743272] [2021-06-06 17:40:23,062 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:40:23,101 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 17:40:23,102 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:40:23,103 WARN L261 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 110 conjunts are in the unsatisfiable core [2021-06-06 17:40:23,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:40:24,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:24,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 66 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 31 [2021-06-06 17:40:24,587 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 17:40:24,594 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:40:24,596 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:40:24,596 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:140, output treesize:18 [2021-06-06 17:40:24,673 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:40:24,674 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [834743272] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:40:24,674 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:40:24,674 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 57 [2021-06-06 17:40:24,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827433772] [2021-06-06 17:40:24,674 INFO L462 AbstractCegarLoop]: Interpolant automaton has 58 states [2021-06-06 17:40:24,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:40:24,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-06-06 17:40:24,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=415, Invalid=2891, Unknown=0, NotChecked=0, Total=3306 [2021-06-06 17:40:24,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:40:24,675 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:40:24,675 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 58 states, 58 states have (on average 2.0689655172413794) internal successors, (120), 57 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 17:40:24,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:40:24,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:40:24,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:40:24,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:40:24,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:40:24,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:40:24,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:40:24,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:40:24,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:40:24,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:40:24,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:40:24,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:40:24,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-06 17:40:24,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-06-06 17:40:24,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-06-06 17:40:24,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:40:28,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:40:28,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:40:28,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:40:28,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:40:28,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:40:28,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:40:28,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:40:28,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:40:28,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:40:28,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:40:28,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:40:28,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:40:28,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-06 17:40:28,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-06 17:40:28,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-06 17:40:28,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-06 17:40:28,632 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:40:28,632 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:40:28,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:40:28,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1107840460, now seen corresponding path program 15 times [2021-06-06 17:40:28,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:40:28,633 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175891312] [2021-06-06 17:40:28,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:40:28,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:40:29,977 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 100 proven. 238 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:40:29,977 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:40:29,977 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175891312] [2021-06-06 17:40:29,977 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175891312] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:40:29,977 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [299055859] [2021-06-06 17:40:29,977 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:40:30,026 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2021-06-06 17:40:30,026 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:40:30,028 WARN L261 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 120 conjunts are in the unsatisfiable core [2021-06-06 17:40:30,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:40:31,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:31,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 13 select indices, 13 select index equivalence classes, 78 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 33 [2021-06-06 17:40:31,823 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 17:40:31,831 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:40:31,832 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:40:31,832 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:155, output treesize:21 [2021-06-06 17:40:31,943 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 0 proven. 338 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:40:31,943 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [299055859] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:40:31,943 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:40:31,943 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 34] total 63 [2021-06-06 17:40:31,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582374109] [2021-06-06 17:40:31,944 INFO L462 AbstractCegarLoop]: Interpolant automaton has 64 states [2021-06-06 17:40:31,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:40:31,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-06-06 17:40:31,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=517, Invalid=3515, Unknown=0, NotChecked=0, Total=4032 [2021-06-06 17:40:31,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:40:31,945 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:40:31,945 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 64 states, 64 states have (on average 2.015625) internal successors, (129), 63 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 17:40:31,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:40:31,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:40:31,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:40:31,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:40:31,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:40:31,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:40:31,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:40:31,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:40:31,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:40:31,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:40:31,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:40:31,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:40:31,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-06 17:40:31,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-06-06 17:40:31,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-06-06 17:40:31,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-06-06 17:40:31,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:40:34,872 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 99 [2021-06-06 17:40:36,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:40:36,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:40:36,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:40:36,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:40:36,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:40:36,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:40:36,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:40:36,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:40:36,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:40:36,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:40:36,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:40:36,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:40:36,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-06 17:40:36,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-06 17:40:36,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-06 17:40:36,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-06 17:40:36,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-06-06 17:40:36,296 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:40:36,297 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:40:36,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:40:36,298 INFO L82 PathProgramCache]: Analyzing trace with hash -2085536376, now seen corresponding path program 16 times [2021-06-06 17:40:36,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:40:36,298 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441345357] [2021-06-06 17:40:36,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:40:36,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:40:37,761 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 121 proven. 271 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:40:37,761 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:40:37,762 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441345357] [2021-06-06 17:40:37,762 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441345357] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:40:37,762 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424289791] [2021-06-06 17:40:37,762 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 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:40:37,806 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 17:40:37,806 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:40:37,808 WARN L261 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 122 conjunts are in the unsatisfiable core [2021-06-06 17:40:37,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:40:39,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:39,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 35 [2021-06-06 17:40:39,862 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 17:40:39,867 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:40:39,868 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:40:39,868 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:152, output treesize:7 [2021-06-06 17:40:39,900 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:40:39,900 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424289791] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:40:39,900 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:40:39,900 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 33] total 64 [2021-06-06 17:40:39,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796625814] [2021-06-06 17:40:39,900 INFO L462 AbstractCegarLoop]: Interpolant automaton has 65 states [2021-06-06 17:40:39,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:40:39,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2021-06-06 17:40:39,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=412, Invalid=3748, Unknown=0, NotChecked=0, Total=4160 [2021-06-06 17:40:39,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:40:39,902 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:40:39,902 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 65 states, 65 states have (on average 2.1076923076923078) internal successors, (137), 64 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 17:40:39,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:40:39,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:40:39,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:40:39,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:40:39,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:40:39,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:40:39,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:40:39,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:40:39,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:40:39,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:40:39,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:40:39,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:40:39,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-06 17:40:39,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-06-06 17:40:39,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-06-06 17:40:39,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-06-06 17:40:39,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-06-06 17:40:39,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:40:44,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:40:44,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:40:44,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:40:44,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:40:44,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:40:44,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:40:44,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:40:44,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:40:44,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:40:44,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:40:44,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:40:44,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:40:44,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-06 17:40:44,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-06 17:40:44,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-06 17:40:44,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-06 17:40:44,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-06-06 17:40:44,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-06-06 17:40:45,080 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-06-06 17:40:45,080 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:40:45,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:40:45,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1854312636, now seen corresponding path program 17 times [2021-06-06 17:40:45,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:40:45,081 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594346494] [2021-06-06 17:40:45,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:40:45,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:40:46,842 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 144 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:40:46,842 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:40:46,842 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594346494] [2021-06-06 17:40:46,843 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594346494] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:40:46,843 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982872598] [2021-06-06 17:40:46,843 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 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:40:46,895 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2021-06-06 17:40:46,895 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:40:46,897 WARN L261 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 130 conjunts are in the unsatisfiable core [2021-06-06 17:40:46,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:40:49,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:40:49,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 15 select indices, 15 select index equivalence classes, 105 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 0 case distinctions, treesize of input 153 treesize of output 37 [2021-06-06 17:40:49,202 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 17:40:49,206 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:40:49,208 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:40:49,208 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:162, output treesize:7 [2021-06-06 17:40:49,241 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:40:49,241 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982872598] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:40:49,241 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:40:49,241 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 35] total 68 [2021-06-06 17:40:49,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205233676] [2021-06-06 17:40:49,246 INFO L462 AbstractCegarLoop]: Interpolant automaton has 69 states [2021-06-06 17:40:49,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:40:49,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2021-06-06 17:40:49,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=461, Invalid=4231, Unknown=0, NotChecked=0, Total=4692 [2021-06-06 17:40:49,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:40:49,248 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:40:49,248 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 69 states, 69 states have (on average 2.101449275362319) internal successors, (145), 68 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 17:40:49,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:40:49,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:40:49,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:40:49,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:40:49,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:40:49,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:40:49,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:40:49,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:40:49,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:40:49,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:40:49,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:40:49,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:40:49,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-06 17:40:49,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-06-06 17:40:49,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-06-06 17:40:49,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-06-06 17:40:49,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-06-06 17:40:49,249 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-06-06 17:40:49,249 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:40:53,965 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 112 [2021-06-06 17:40:55,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:40:55,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:40:55,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:40:55,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:40:55,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:40:55,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:40:55,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:40:55,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:40:55,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:40:55,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:40:55,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:40:55,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:40:55,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-06 17:40:55,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-06 17:40:55,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-06 17:40:55,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-06 17:40:55,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-06-06 17:40:55,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-06-06 17:40:55,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-06-06 17:40:55,665 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-06-06 17:40:55,665 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:40:55,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:40:55,665 INFO L82 PathProgramCache]: Analyzing trace with hash -963648768, now seen corresponding path program 18 times [2021-06-06 17:40:55,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:40:55,666 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847627659] [2021-06-06 17:40:55,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:40:55,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:40:57,578 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 169 proven. 343 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:40:57,579 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:40:57,579 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847627659] [2021-06-06 17:40:57,579 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847627659] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:40:57,579 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761815158] [2021-06-06 17:40:57,579 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 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:40:57,635 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 17 check-sat command(s) [2021-06-06 17:40:57,635 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:40:57,637 WARN L261 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 140 conjunts are in the unsatisfiable core [2021-06-06 17:40:57,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:43:01,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:01,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:43:02,810 INFO L244 Elim1Store]: Index analysis took 1510 ms [2021-06-06 17:43:08,424 WARN L205 SmtUtils]: Spent 5.61 s on a formula simplification that was a NOOP. DAG size: 476 [2021-06-06 17:43:08,424 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:43:08,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 20 select indices, 20 select index equivalence classes, 84 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 106 case distinctions, treesize of input 159 treesize of output 1237 [2021-06-06 17:43:08,590 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 444 DAG size of output: 406 [2021-06-06 17:43:09,940 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 1991 DAG size of output: 1234 [2021-06-06 17:43:11,134 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 2030 DAG size of output: 1273 [2021-06-06 17:43:29,135 WARN L205 SmtUtils]: Spent 17.09 s on a formula simplification. DAG size of input: 7832 DAG size of output: 6605 [2021-06-06 17:43:47,879 WARN L205 SmtUtils]: Spent 18.39 s on a formula simplification. DAG size of input: 7856 DAG size of output: 6630 [2021-06-06 17:46:37,046 WARN L205 SmtUtils]: Spent 2.71 m on a formula simplification. DAG size of input: 46385 DAG size of output: 30733 [2021-06-06 17:49:30,313 WARN L205 SmtUtils]: Spent 2.86 m on a formula simplification. DAG size of input: 46424 DAG size of output: 30773 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown