/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-inc.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 16:06:44,439 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 16:06:44,441 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 16:06:44,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-14 16:06:44,473 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-14 16:06:44,475 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-14 16:06:44,477 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-14 16:06:44,481 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-14 16:06:44,483 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-14 16:06:44,486 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-14 16:06:44,487 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-14 16:06:44,488 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-14 16:06:44,488 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-14 16:06:44,490 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-14 16:06:44,491 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-14 16:06:44,491 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-14 16:06:44,494 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-14 16:06:44,495 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-14 16:06:44,496 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-14 16:06:44,500 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-14 16:06:44,501 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-14 16:06:44,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-14 16:06:44,503 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-14 16:06:44,505 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-14 16:06:44,510 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-14 16:06:44,518 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-14 16:06:44,518 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-14 16:06:44,519 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-14 16:06:44,522 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf [2021-07-14 16:06:44,549 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 16:06:44,550 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 16:06:44,550 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 16:06:44,550 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 16:06:44,552 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 16:06:44,552 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 16:06:44,552 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 16:06:44,552 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 16:06:44,552 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 16:06:44,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 16:06:44,553 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 16:06:44,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 16:06:44,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 16:06:44,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 16:06:44,553 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 16:06:44,554 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 16:06:44,554 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 16:06:44,554 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 16:06:44,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 16:06:44,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 16:06:44,554 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 16:06:44,554 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 16:06:44,554 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 16:06:44,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 16:06:44,554 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 16:06:44,554 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 16:06:44,554 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 16:06:44,555 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 16:06:44,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 16:06:44,555 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 16:06:44,555 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 16:06:44,555 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 16:06:44,555 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-14 16:06:44,555 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 16:06:44,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 16:06:44,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 16:06:44,846 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 16:06:44,847 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 16:06:44,848 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 16:06:44,849 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-inc.wvr.bpl [2021-07-14 16:06:44,849 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-inc.wvr.bpl' [2021-07-14 16:06:44,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 16:06:44,878 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 16:06:44,879 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 16:06:44,879 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 16:06:44,879 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 16:06:44,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:06:44" (1/1) ... [2021-07-14 16:06:44,892 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:06:44" (1/1) ... [2021-07-14 16:06:44,898 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 16:06:44,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 16:06:44,899 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 16:06:44,899 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 16:06:44,904 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:06:44" (1/1) ... [2021-07-14 16:06:44,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:06:44" (1/1) ... [2021-07-14 16:06:44,906 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:06:44" (1/1) ... [2021-07-14 16:06:44,906 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:06:44" (1/1) ... [2021-07-14 16:06:44,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:06:44" (1/1) ... [2021-07-14 16:06:44,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:06:44" (1/1) ... [2021-07-14 16:06:44,911 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:06:44" (1/1) ... [2021-07-14 16:06:44,912 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 16:06:44,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 16:06:44,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 16:06:44,913 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 16:06:44,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:06:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 16:06:44,958 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 16:06:44,958 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 16:06:44,959 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 16:06:44,959 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 16:06:44,959 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 16:06:44,959 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 16:06:44,959 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 16:06:44,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 16:06:44,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 16:06:44,959 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-14 16:06:44,959 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-14 16:06:44,959 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-14 16:06:44,959 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-07-14 16:06:44,959 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-07-14 16:06:44,960 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-07-14 16:06:44,960 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 16:06:45,172 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 16:06:45,172 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-14 16:06:45,173 INFO L202 PluginConnector]: Adding new model min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:06:45 BoogieIcfgContainer [2021-07-14 16:06:45,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 16:06:45,175 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 16:06:45,175 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 16:06:45,177 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 16:06:45,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:06:44" (1/2) ... [2021-07-14 16:06:45,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@712f1b1e and model type min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 04:06:45, skipping insertion in model container [2021-07-14 16:06:45,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:06:45" (2/2) ... [2021-07-14 16:06:45,178 INFO L111 eAbstractionObserver]: Analyzing ICFG min-max-inc.wvr.bpl [2021-07-14 16:06:45,182 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 16:06:45,182 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 16:06:45,182 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 16:06:45,182 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 16:06:45,267 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-07-14 16:06:45,301 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-14 16:06:45,422 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 16:06:45,422 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 16:06:45,422 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 16:06:45,422 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 16:06:45,422 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 16:06:45,422 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 16:06:45,423 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 16:06:45,423 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 16:06:45,578 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:06:45,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:06:45,582 INFO L82 PathProgramCache]: Analyzing trace with hash -1438409888, now seen corresponding path program 1 times [2021-07-14 16:06:45,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:06:45,588 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766050848] [2021-07-14 16:06:45,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:06:45,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:06:45,853 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:06:45,854 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:06:45,855 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766050848] [2021-07-14 16:06:45,855 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766050848] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:06:45,855 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1194532857] [2021-07-14 16:06:45,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:06:45,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:06:45,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 14 conjunts are in the unsatisfiable core [2021-07-14 16:06:45,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:06:46,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 21 treesize of output 14 [2021-07-14 16:06:46,113 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 16:06:46,119 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 16:06:46,119 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 16:06:46,120 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:21 [2021-07-14 16:06:46,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-14 16:06:46,181 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 16:06:46,182 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 16:06:46,183 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 16:06:46,183 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:5 [2021-07-14 16:06:46,231 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:06:46,231 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1194532857] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:06:46,231 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:06:46,231 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-07-14 16:06:46,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390729532] [2021-07-14 16:06:46,235 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-14 16:06:46,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:06:46,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-14 16:06:46,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2021-07-14 16:06:46,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:06:46,246 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:06:46,247 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 13 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:06:46,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:06:46,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:06:46,590 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-07-14 16:06:46,591 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:06:46,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:06:46,592 INFO L82 PathProgramCache]: Analyzing trace with hash -1245597502, now seen corresponding path program 2 times [2021-07-14 16:06:46,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:06:46,592 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061542354] [2021-07-14 16:06:46,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:06:46,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:06:46,631 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:06:46,631 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:06:46,631 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061542354] [2021-07-14 16:06:46,631 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061542354] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:06:46,631 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893661979] [2021-07-14 16:06:46,632 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 [2021-07-14 16:06:46,705 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 16:06:46,706 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:06:46,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-14 16:06:46,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:06:46,760 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:06:46,760 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893661979] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:06:46,760 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:06:46,761 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-07-14 16:06:46,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219438830] [2021-07-14 16:06:46,761 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 16:06:46,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:06:46,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 16:06:46,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-07-14 16:06:46,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:06:46,762 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:06:46,762 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 6 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) [2021-07-14 16:06:46,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:06:46,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:06:46,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:06:46,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:06:47,081 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:06:47,081 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:06:47,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:06:47,082 INFO L82 PathProgramCache]: Analyzing trace with hash -2050303934, now seen corresponding path program 3 times [2021-07-14 16:06:47,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:06:47,082 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190170300] [2021-07-14 16:06:47,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:06:47,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:06:47,123 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-07-14 16:06:47,123 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:06:47,123 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190170300] [2021-07-14 16:06:47,123 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190170300] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:06:47,124 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233452956] [2021-07-14 16:06:47,124 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 [2021-07-14 16:06:47,187 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-07-14 16:06:47,187 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:06:47,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-14 16:06:47,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:06:47,254 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-07-14 16:06:47,255 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233452956] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:06:47,256 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:06:47,257 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-07-14 16:06:47,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352257472] [2021-07-14 16:06:47,257 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 16:06:47,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:06:47,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 16:06:47,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-07-14 16:06:47,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:06:47,259 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:06:47,260 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:06:47,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:06:47,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:06:47,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:06:47,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:06:47,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:06:47,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:06:47,543 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:06:47,543 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:06:47,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:06:47,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1238599746, now seen corresponding path program 4 times [2021-07-14 16:06:47,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:06:47,543 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031825699] [2021-07-14 16:06:47,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:06:47,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:06:47,594 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-07-14 16:06:47,595 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:06:47,595 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031825699] [2021-07-14 16:06:47,595 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031825699] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:06:47,595 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881803520] [2021-07-14 16:06:47,595 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 [2021-07-14 16:06:47,668 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 16:06:47,668 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:06:47,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-14 16:06:47,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:06:47,723 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-07-14 16:06:47,724 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1881803520] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:06:47,724 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:06:47,724 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-07-14 16:06:47,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123470338] [2021-07-14 16:06:47,724 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-14 16:06:47,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:06:47,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-14 16:06:47,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-07-14 16:06:47,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:06:47,725 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:06:47,725 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:06:47,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:06:47,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:06:47,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:06:47,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:06:47,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:06:47,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:06:47,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:06:47,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:06:48,051 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:06:48,052 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:06:48,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:06:48,052 INFO L82 PathProgramCache]: Analyzing trace with hash 929828278, now seen corresponding path program 5 times [2021-07-14 16:06:48,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:06:48,052 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163660559] [2021-07-14 16:06:48,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:06:48,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:06:48,109 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 4 proven. 28 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-14 16:06:48,109 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:06:48,110 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163660559] [2021-07-14 16:06:48,110 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163660559] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:06:48,110 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242136581] [2021-07-14 16:06:48,110 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 [2021-07-14 16:06:48,174 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-07-14 16:06:48,174 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:06:48,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 10 conjunts are in the unsatisfiable core [2021-07-14 16:06:48,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:06:48,280 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 20 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:06:48,280 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [242136581] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:06:48,280 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:06:48,281 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 14 [2021-07-14 16:06:48,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279804130] [2021-07-14 16:06:48,281 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-14 16:06:48,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:06:48,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-14 16:06:48,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-07-14 16:06:48,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:06:48,282 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:06:48,282 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 4.866666666666666) internal successors, (73), 14 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) [2021-07-14 16:06:48,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:06:48,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:06:48,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:06:48,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:06:48,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:06:48,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:06:48,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 16:06:48,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:06:48,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:06:48,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 16:06:48,949 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:06:48,949 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:06:48,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:06:48,949 INFO L82 PathProgramCache]: Analyzing trace with hash -245408574, now seen corresponding path program 6 times [2021-07-14 16:06:48,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:06:48,950 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763490596] [2021-07-14 16:06:48,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:06:48,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:06:49,097 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 50 proven. 44 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-14 16:06:49,097 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:06:49,097 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763490596] [2021-07-14 16:06:49,097 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763490596] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:06:49,097 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [812135538] [2021-07-14 16:06:49,097 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 [2021-07-14 16:06:49,140 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-07-14 16:06:49,140 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:06:49,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 15 conjunts are in the unsatisfiable core [2021-07-14 16:06:49,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:06:49,274 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 45 proven. 35 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-07-14 16:06:49,275 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [812135538] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:06:49,275 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:06:49,275 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 18 [2021-07-14 16:06:49,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336014194] [2021-07-14 16:06:49,275 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-14 16:06:49,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:06:49,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-14 16:06:49,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2021-07-14 16:06:49,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:06:49,276 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:06:49,276 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.684210526315789) internal successors, (89), 18 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) [2021-07-14 16:06:49,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:06:49,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 16:06:49,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:06:49,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:06:49,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 16:06:49,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:06:49,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:06:49,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 16:06:49,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:06:49,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:06:49,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 16:06:49,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-14 16:06:50,049 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:06:50,049 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:06:50,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:06:50,050 INFO L82 PathProgramCache]: Analyzing trace with hash 1181284662, now seen corresponding path program 7 times [2021-07-14 16:06:50,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:06:50,050 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429933779] [2021-07-14 16:06:50,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:06:50,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:06:50,113 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 34 proven. 41 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-07-14 16:06:50,113 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:06:50,113 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429933779] [2021-07-14 16:06:50,113 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429933779] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:06:50,113 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056423653] [2021-07-14 16:06:50,113 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 [2021-07-14 16:06:50,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:06:50,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-14 16:06:50,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:06:50,273 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 41 proven. 34 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-07-14 16:06:50,273 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1056423653] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:06:50,273 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:06:50,273 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 10 [2021-07-14 16:06:50,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240674807] [2021-07-14 16:06:50,274 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-14 16:06:50,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:06:50,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-14 16:06:50,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2021-07-14 16:06:50,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:06:50,274 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:06:50,274 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 10 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:06:50,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:06:50,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 16:06:50,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:06:50,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:06:50,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 16:06:50,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-07-14 16:06:50,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:06:50,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:06:50,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 16:06:50,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:06:50,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:06:50,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 16:06:50,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-14 16:06:50,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 16:06:50,673 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-07-14 16:06:50,674 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:06:50,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:06:50,675 INFO L82 PathProgramCache]: Analyzing trace with hash -2012610758, now seen corresponding path program 8 times [2021-07-14 16:06:50,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:06:50,675 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701567342] [2021-07-14 16:06:50,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:06:50,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:06:50,818 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 72 proven. 101 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 16:06:50,818 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:06:50,818 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701567342] [2021-07-14 16:06:50,818 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701567342] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:06:50,818 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954398285] [2021-07-14 16:06:50,818 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 [2021-07-14 16:06:50,862 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 16:06:50,862 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:06:50,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 14 conjunts are in the unsatisfiable core [2021-07-14 16:06:50,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:06:51,076 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 110 proven. 25 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-07-14 16:06:51,076 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954398285] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:06:51,076 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:06:51,076 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 10] total 29 [2021-07-14 16:06:51,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209208509] [2021-07-14 16:06:51,077 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-07-14 16:06:51,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:06:51,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-07-14 16:06:51,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=719, Unknown=0, NotChecked=0, Total=870 [2021-07-14 16:06:51,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:06:51,078 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:06:51,079 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 3.6333333333333333) internal successors, (109), 29 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:06:51,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:06:51,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 16:06:51,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:06:51,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:06:51,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 16:06:51,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-14 16:06:51,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 16:06:51,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:06:51,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:06:51,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 16:06:51,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:06:51,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:06:51,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 16:06:51,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-14 16:06:51,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 16:06:51,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 16:06:51,444 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:06:51,444 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:06:51,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:06:51,445 INFO L82 PathProgramCache]: Analyzing trace with hash 196016924, now seen corresponding path program 9 times [2021-07-14 16:06:51,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:06:51,445 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948849455] [2021-07-14 16:06:51,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:06:51,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:06:51,533 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 39 proven. 102 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-07-14 16:06:51,533 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:06:51,534 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948849455] [2021-07-14 16:06:51,534 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948849455] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:06:51,534 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [652123778] [2021-07-14 16:06:51,534 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 [2021-07-14 16:06:51,587 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-07-14 16:06:51,587 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:06:51,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 36 conjunts are in the unsatisfiable core [2021-07-14 16:06:51,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:06:51,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:51,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:51,784 INFO L354 Elim1Store]: treesize reduction 32, result has 59.5 percent of original size [2021-07-14 16:06:51,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 25 treesize of output 60 [2021-07-14 16:06:51,792 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 16:06:51,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:51,849 INFO L354 Elim1Store]: treesize reduction 32, result has 59.5 percent of original size [2021-07-14 16:06:51,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 29 treesize of output 60 [2021-07-14 16:06:51,862 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-07-14 16:06:52,000 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 42 [2021-07-14 16:06:52,001 INFO L628 ElimStorePlain]: treesize reduction 116, result has 48.7 percent of original size [2021-07-14 16:06:52,007 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-07-14 16:06:52,007 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:71, output treesize:85 [2021-07-14 16:06:52,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:52,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:52,093 INFO L354 Elim1Store]: treesize reduction 32, result has 59.5 percent of original size [2021-07-14 16:06:52,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 29 treesize of output 60 [2021-07-14 16:06:52,105 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-07-14 16:06:52,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:52,145 INFO L354 Elim1Store]: treesize reduction 32, result has 59.5 percent of original size [2021-07-14 16:06:52,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 25 treesize of output 60 [2021-07-14 16:06:52,153 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-14 16:06:52,237 INFO L628 ElimStorePlain]: treesize reduction 77, result has 62.3 percent of original size [2021-07-14 16:06:52,250 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2021-07-14 16:06:52,250 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:71, output treesize:127 [2021-07-14 16:06:52,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:52,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:52,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:52,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:52,657 INFO L354 Elim1Store]: treesize reduction 44, result has 59.3 percent of original size [2021-07-14 16:06:52,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 36 treesize of output 80 [2021-07-14 16:06:52,688 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-07-14 16:06:52,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:52,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:52,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:52,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:52,790 INFO L354 Elim1Store]: treesize reduction 44, result has 59.3 percent of original size [2021-07-14 16:06:52,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 34 treesize of output 80 [2021-07-14 16:06:52,806 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-07-14 16:06:52,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:52,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:52,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:52,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:52,945 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 33 [2021-07-14 16:06:52,945 INFO L354 Elim1Store]: treesize reduction 44, result has 59.3 percent of original size [2021-07-14 16:06:52,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 34 treesize of output 80 [2021-07-14 16:06:52,960 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 16:06:52,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:52,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:52,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:53,064 INFO L354 Elim1Store]: treesize reduction 44, result has 59.3 percent of original size [2021-07-14 16:06:53,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 30 treesize of output 80 [2021-07-14 16:06:53,088 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-14 16:06:54,281 WARN L205 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 192 DAG size of output: 152 [2021-07-14 16:06:54,282 INFO L628 ElimStorePlain]: treesize reduction 345, result has 60.2 percent of original size [2021-07-14 16:06:54,367 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 4 xjuncts. [2021-07-14 16:06:54,367 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:187, output treesize:431 [2021-07-14 16:06:54,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:54,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:54,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:54,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:54,691 INFO L354 Elim1Store]: treesize reduction 44, result has 59.3 percent of original size [2021-07-14 16:06:54,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 34 treesize of output 80 [2021-07-14 16:06:54,703 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 16:06:54,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:54,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:54,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:54,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:54,795 INFO L354 Elim1Store]: treesize reduction 44, result has 59.3 percent of original size [2021-07-14 16:06:54,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 30 treesize of output 80 [2021-07-14 16:06:54,825 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-14 16:06:54,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:54,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:54,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:54,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:54,944 INFO L354 Elim1Store]: treesize reduction 44, result has 59.3 percent of original size [2021-07-14 16:06:54,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 34 treesize of output 80 [2021-07-14 16:06:54,955 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2021-07-14 16:06:54,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:54,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:54,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:55,070 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 33 [2021-07-14 16:06:55,071 INFO L354 Elim1Store]: treesize reduction 44, result has 59.3 percent of original size [2021-07-14 16:06:55,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 36 treesize of output 80 [2021-07-14 16:06:55,089 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2021-07-14 16:06:55,649 WARN L205 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 148 [2021-07-14 16:06:55,650 INFO L628 ElimStorePlain]: treesize reduction 207, result has 71.1 percent of original size [2021-07-14 16:06:55,704 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 4 xjuncts. [2021-07-14 16:06:55,704 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:187, output treesize:377 [2021-07-14 16:06:55,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:55,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:55,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:55,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:56,018 INFO L354 Elim1Store]: treesize reduction 50, result has 60.3 percent of original size [2021-07-14 16:06:56,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 40 treesize of output 94 [2021-07-14 16:06:56,030 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-07-14 16:06:56,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:56,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:56,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:56,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:56,112 INFO L354 Elim1Store]: treesize reduction 50, result has 60.3 percent of original size [2021-07-14 16:06:56,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 94 [2021-07-14 16:06:56,127 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-07-14 16:06:56,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:56,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:56,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:56,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:56,212 INFO L354 Elim1Store]: treesize reduction 50, result has 60.3 percent of original size [2021-07-14 16:06:56,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 94 [2021-07-14 16:06:56,222 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 16:06:56,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:56,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:56,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:56,306 INFO L354 Elim1Store]: treesize reduction 50, result has 60.3 percent of original size [2021-07-14 16:06:56,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 34 treesize of output 94 [2021-07-14 16:06:56,314 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-14 16:06:56,986 WARN L205 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 146 [2021-07-14 16:06:56,987 INFO L628 ElimStorePlain]: treesize reduction 240, result has 67.2 percent of original size [2021-07-14 16:06:57,025 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 4 xjuncts. [2021-07-14 16:06:57,025 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:183, output treesize:492 [2021-07-14 16:06:58,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,306 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 16:06:58,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 31 treesize of output 51 [2021-07-14 16:06:58,327 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2021-07-14 16:06:58,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,359 INFO L354 Elim1Store]: treesize reduction 34, result has 8.1 percent of original size [2021-07-14 16:06:58,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 22 [2021-07-14 16:06:58,361 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-14 16:06:58,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,397 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 16:06:58,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 31 treesize of output 49 [2021-07-14 16:06:58,412 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 3 xjuncts. [2021-07-14 16:06:58,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,448 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 16:06:58,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 49 [2021-07-14 16:06:58,465 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2021-07-14 16:06:58,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,502 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 16:06:58,503 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 3 case distinctions, treesize of input 31 treesize of output 47 [2021-07-14 16:06:58,519 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 3 xjuncts. [2021-07-14 16:06:58,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,555 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 16:06:58,555 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 3 case distinctions, treesize of input 33 treesize of output 47 [2021-07-14 16:06:58,573 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2021-07-14 16:06:58,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,610 INFO L354 Elim1Store]: treesize reduction 23, result has 34.3 percent of original size [2021-07-14 16:06:58,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 26 [2021-07-14 16:06:58,612 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-07-14 16:06:58,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,637 INFO L354 Elim1Store]: treesize reduction 34, result has 2.9 percent of original size [2021-07-14 16:06:58,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 1 [2021-07-14 16:06:58,638 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-07-14 16:06:58,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,676 INFO L354 Elim1Store]: treesize reduction 23, result has 34.3 percent of original size [2021-07-14 16:06:58,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 26 [2021-07-14 16:06:58,677 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-07-14 16:06:58,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,713 INFO L354 Elim1Store]: treesize reduction 25, result has 32.4 percent of original size [2021-07-14 16:06:58,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 26 [2021-07-14 16:06:58,714 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-07-14 16:06:58,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,754 INFO L354 Elim1Store]: treesize reduction 32, result has 8.6 percent of original size [2021-07-14 16:06:58,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 20 [2021-07-14 16:06:58,756 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-07-14 16:06:58,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,781 INFO L354 Elim1Store]: treesize reduction 34, result has 2.9 percent of original size [2021-07-14 16:06:58,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 1 [2021-07-14 16:06:58,782 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-07-14 16:06:58,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,809 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-07-14 16:06:58,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 1 [2021-07-14 16:06:58,809 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-07-14 16:06:58,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,859 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 16:06:58,859 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 3 case distinctions, treesize of input 27 treesize of output 47 [2021-07-14 16:06:58,870 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 2 xjuncts. [2021-07-14 16:06:58,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,901 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 16:06:58,902 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 3 case distinctions, treesize of input 31 treesize of output 47 [2021-07-14 16:06:58,912 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 2 xjuncts. [2021-07-14 16:06:58,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:06:58,928 INFO L354 Elim1Store]: treesize reduction 34, result has 2.9 percent of original size [2021-07-14 16:06:58,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 1 [2021-07-14 16:06:58,929 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-07-14 16:06:59,258 WARN L205 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 120 [2021-07-14 16:06:59,259 INFO L628 ElimStorePlain]: treesize reduction 89, result has 79.5 percent of original size [2021-07-14 16:06:59,314 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 33 xjuncts. [2021-07-14 16:06:59,314 INFO L247 ElimStorePlain]: Needed 17 recursive calls to eliminate 5 variables, input treesize:739, output treesize:1339 [2021-07-14 16:06:59,686 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 23 proven. 105 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2021-07-14 16:06:59,686 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [652123778] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:06:59,686 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:06:59,686 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 16] total 27 [2021-07-14 16:06:59,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103262188] [2021-07-14 16:06:59,687 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-07-14 16:06:59,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:06:59,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-07-14 16:06:59,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=611, Unknown=0, NotChecked=0, Total=702 [2021-07-14 16:06:59,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:06:59,687 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:06:59,688 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.7037037037037037) internal successors, (100), 27 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:06:59,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:06:59,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 16:06:59,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:06:59,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:06:59,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 16:06:59,696 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-14 16:06:59,696 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 16:06:59,696 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 16:06:59,696 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:07:00,681 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 96 [2021-07-14 16:07:01,096 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-07-14 16:07:03,426 WARN L205 SmtUtils]: Spent 2.14 s on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2021-07-14 16:07:05,591 WARN L205 SmtUtils]: Spent 2.11 s on a formula simplification that was a NOOP. DAG size: 51 [2021-07-14 16:07:05,945 WARN L205 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 96 [2021-07-14 16:07:06,199 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-07-14 16:07:06,446 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-07-14 16:07:06,978 WARN L205 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2021-07-14 16:07:07,184 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-07-14 16:07:07,500 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-07-14 16:07:09,827 WARN L205 SmtUtils]: Spent 2.21 s on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-07-14 16:07:10,312 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-07-14 16:07:10,531 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-07-14 16:07:10,711 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2021-07-14 16:07:11,131 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2021-07-14 16:07:11,589 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2021-07-14 16:07:12,142 WARN L205 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 185 [2021-07-14 16:07:12,449 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2021-07-14 16:07:12,850 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-07-14 16:07:13,511 WARN L205 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 194 [2021-07-14 16:07:14,505 WARN L205 SmtUtils]: Spent 895.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 190 [2021-07-14 16:07:14,795 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2021-07-14 16:07:15,388 WARN L205 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 195 [2021-07-14 16:07:16,171 WARN L205 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 192 [2021-07-14 16:07:16,833 WARN L205 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 178 [2021-07-14 16:07:16,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:07:16,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 16:07:16,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:07:16,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:07:16,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 16:07:16,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-14 16:07:16,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 16:07:16,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 16:07:16,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-07-14 16:07:17,177 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:07:17,177 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:07:17,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:07:17,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1295884316, now seen corresponding path program 10 times [2021-07-14 16:07:17,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:07:17,178 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648058803] [2021-07-14 16:07:17,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:07:17,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:07:17,334 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 54 proven. 119 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-07-14 16:07:17,335 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:07:17,335 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648058803] [2021-07-14 16:07:17,335 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648058803] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:07:17,335 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031239414] [2021-07-14 16:07:17,335 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 [2021-07-14 16:07:17,382 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 16:07:17,382 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:07:17,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-14 16:07:17,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:07:17,569 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 126 proven. 62 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-07-14 16:07:17,569 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031239414] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:07:17,569 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:07:17,569 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 23 [2021-07-14 16:07:17,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636595054] [2021-07-14 16:07:17,570 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-07-14 16:07:17,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:07:17,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-07-14 16:07:17,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=449, Unknown=0, NotChecked=0, Total=552 [2021-07-14 16:07:17,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:07:17,570 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:07:17,571 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 4.5) internal successors, (108), 23 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:07:17,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:07:17,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 16:07:17,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:07:17,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:07:17,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 16:07:17,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-14 16:07:17,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 16:07:17,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 16:07:17,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-07-14 16:07:17,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:07:17,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:07:17,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 16:07:17,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:07:17,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:07:17,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 16:07:17,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-14 16:07:17,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 16:07:17,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 16:07:17,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-07-14 16:07:17,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 16:07:18,163 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable432 [2021-07-14 16:07:18,163 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:07:18,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:07:18,164 INFO L82 PathProgramCache]: Analyzing trace with hash -180704642, now seen corresponding path program 11 times [2021-07-14 16:07:18,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:07:18,164 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724480472] [2021-07-14 16:07:18,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:07:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:07:18,278 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 106 proven. 109 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-07-14 16:07:18,278 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:07:18,278 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724480472] [2021-07-14 16:07:18,278 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724480472] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:07:18,279 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76858286] [2021-07-14 16:07:18,279 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 [2021-07-14 16:07:18,357 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2021-07-14 16:07:18,357 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:07:18,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 21 conjunts are in the unsatisfiable core [2021-07-14 16:07:18,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:07:18,585 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 70 proven. 98 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-07-14 16:07:18,586 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [76858286] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:07:18,586 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:07:18,586 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 23 [2021-07-14 16:07:18,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001892810] [2021-07-14 16:07:18,586 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-07-14 16:07:18,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:07:18,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-07-14 16:07:18,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=449, Unknown=0, NotChecked=0, Total=552 [2021-07-14 16:07:18,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:07:18,587 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:07:18,587 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 4.666666666666667) internal successors, (112), 23 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:07:18,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:07:18,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 16:07:18,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:07:18,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:07:18,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 16:07:18,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-14 16:07:18,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 16:07:18,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 16:07:18,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-07-14 16:07:18,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 16:07:18,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:07:19,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:07:19,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 16:07:19,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:07:19,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:07:19,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 16:07:19,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-14 16:07:19,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 16:07:19,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 16:07:19,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-07-14 16:07:19,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 16:07:19,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-07-14 16:07:19,606 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable433 [2021-07-14 16:07:19,606 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:07:19,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:07:19,607 INFO L82 PathProgramCache]: Analyzing trace with hash -1608799460, now seen corresponding path program 12 times [2021-07-14 16:07:19,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:07:19,607 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393125907] [2021-07-14 16:07:19,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:07:19,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:07:19,779 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 82 proven. 159 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-07-14 16:07:19,779 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:07:19,779 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393125907] [2021-07-14 16:07:19,779 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393125907] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:07:19,780 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595529256] [2021-07-14 16:07:19,780 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 [2021-07-14 16:07:19,839 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2021-07-14 16:07:19,839 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:07:19,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 21 conjunts are in the unsatisfiable core [2021-07-14 16:07:19,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:07:20,126 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 120 proven. 134 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-07-14 16:07:20,127 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595529256] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:07:20,127 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:07:20,127 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 14] total 31 [2021-07-14 16:07:20,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588522400] [2021-07-14 16:07:20,127 INFO L462 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-07-14 16:07:20,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:07:20,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-07-14 16:07:20,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=825, Unknown=0, NotChecked=0, Total=992 [2021-07-14 16:07:20,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:07:20,128 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:07:20,128 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 3.90625) internal successors, (125), 31 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:07:20,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:07:20,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 16:07:20,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:07:20,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:07:20,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 16:07:20,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-14 16:07:20,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 16:07:20,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 16:07:20,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-07-14 16:07:20,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 16:07:20,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-07-14 16:07:20,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:07:20,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:07:20,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 16:07:20,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:07:20,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:07:20,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 16:07:20,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-14 16:07:20,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 16:07:20,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 16:07:20,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-07-14 16:07:20,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 16:07:20,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-07-14 16:07:20,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 16:07:20,864 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable434 [2021-07-14 16:07:20,864 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:07:20,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:07:20,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1772172158, now seen corresponding path program 13 times [2021-07-14 16:07:20,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:07:20,864 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755009957] [2021-07-14 16:07:20,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:07:21,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:07:26,011 WARN L205 SmtUtils]: Spent 3.02 s on a formula simplification. DAG size of input: 108 DAG size of output: 24 [2021-07-14 16:18:28,540 WARN L205 SmtUtils]: Spent 11.04 m on a formula simplification. DAG size of input: 139 DAG size of output: 12 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown