/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-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-1-dsl.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-17 09:51:28,475 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-17 09:51:28,477 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-17 09:51:28,520 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-17 09:51:28,520 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-17 09:51:28,523 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-17 09:51:28,524 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-17 09:51:28,528 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-17 09:51:28,530 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-17 09:51:28,533 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-17 09:51:28,534 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-17 09:51:28,535 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-17 09:51:28,535 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-17 09:51:28,536 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-17 09:51:28,537 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-17 09:51:28,538 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-17 09:51:28,541 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-17 09:51:28,542 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-17 09:51:28,543 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-17 09:51:28,549 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-17 09:51:28,550 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-17 09:51:28,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-17 09:51:28,553 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-17 09:51:28,555 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-17 09:51:28,558 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-17 09:51:28,558 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-17 09:51:28,558 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-17 09:51:28,559 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-17 09:51:28,560 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-17 09:51:28,560 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-17 09:51:28,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-17 09:51:28,561 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-17 09:51:28,562 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-17 09:51:28,562 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-17 09:51:28,563 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-17 09:51:28,563 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-17 09:51:28,563 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-17 09:51:28,564 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-17 09:51:28,564 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-17 09:51:28,564 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-17 09:51:28,565 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-17 09:51:28,568 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-Lockstep.epf [2021-06-17 09:51:28,593 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-17 09:51:28,593 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-17 09:51:28,593 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-17 09:51:28,593 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-17 09:51:28,595 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-17 09:51:28,595 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-17 09:51:28,595 INFO L138 SettingsManager]: * Use SBE=true [2021-06-17 09:51:28,596 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-17 09:51:28,596 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-17 09:51:28,596 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-17 09:51:28,597 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-17 09:51:28,597 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-17 09:51:28,597 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-17 09:51:28,597 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-17 09:51:28,597 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-17 09:51:28,597 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-17 09:51:28,597 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-17 09:51:28,597 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-17 09:51:28,597 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-17 09:51:28,597 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-17 09:51:28,598 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-17 09:51:28,598 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-17 09:51:28,598 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-17 09:51:28,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-17 09:51:28,598 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-17 09:51:28,598 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-17 09:51:28,598 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-17 09:51:28,598 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-17 09:51:28,598 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-06-17 09:51:28,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-17 09:51:28,599 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-17 09:51:28,599 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-17 09:51:28,599 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-17 09:51:28,599 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-06-17 09:51:28,599 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-17 09:51:28,870 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-17 09:51:28,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-17 09:51:28,885 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-17 09:51:28,885 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-17 09:51:28,886 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-17 09:51:28,887 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-1-dsl.wvr.bpl [2021-06-17 09:51:28,887 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-1-dsl.wvr.bpl' [2021-06-17 09:51:28,910 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-17 09:51:28,911 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-17 09:51:28,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-17 09:51:28,912 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-17 09:51:28,912 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-17 09:51:28,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 09:51:28" (1/1) ... [2021-06-17 09:51:28,925 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 09:51:28" (1/1) ... [2021-06-17 09:51:28,930 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-17 09:51:28,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-17 09:51:28,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-17 09:51:28,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-17 09:51:28,936 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 09:51:28" (1/1) ... [2021-06-17 09:51:28,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 09:51:28" (1/1) ... [2021-06-17 09:51:28,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 09:51:28" (1/1) ... [2021-06-17 09:51:28,937 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 09:51:28" (1/1) ... [2021-06-17 09:51:28,939 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 09:51:28" (1/1) ... [2021-06-17 09:51:28,941 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 09:51:28" (1/1) ... [2021-06-17 09:51:28,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 09:51:28" (1/1) ... [2021-06-17 09:51:28,943 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-17 09:51:28,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-17 09:51:28,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-17 09:51:28,943 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-17 09:51:28,944 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 09:51:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-17 09:51:28,990 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-17 09:51:28,990 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-17 09:51:28,990 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-17 09:51:28,990 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-17 09:51:28,990 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-17 09:51:28,990 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-17 09:51:28,991 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-17 09:51:28,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-17 09:51:28,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-17 09:51:28,991 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-17 09:51:28,991 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-17 09:51:28,991 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-17 09:51:28,991 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-06-17 09:51:28,991 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-06-17 09:51:28,991 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-06-17 09:51:28,992 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2021-06-17 09:51:28,992 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-06-17 09:51:28,992 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-06-17 09:51:28,992 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2021-06-17 09:51:28,992 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2021-06-17 09:51:28,992 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2021-06-17 09:51:28,993 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-17 09:51:29,295 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-17 09:51:29,296 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-17 09:51:29,296 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2021-06-17 09:51:29,297 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread3EXIT is neither atomic block end nor error location. [2021-06-17 09:51:29,297 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread5EXIT is neither atomic block end nor error location. [2021-06-17 09:51:29,297 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread6EXIT is neither atomic block end nor error location. [2021-06-17 09:51:29,298 INFO L202 PluginConnector]: Adding new model parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 09:51:29 BoogieIcfgContainer [2021-06-17 09:51:29,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-17 09:51:29,299 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-17 09:51:29,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-17 09:51:29,301 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-17 09:51:29,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 09:51:28" (1/2) ... [2021-06-17 09:51:29,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a1981a9 and model type parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.06 09:51:29, skipping insertion in model container [2021-06-17 09:51:29,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 09:51:29" (2/2) ... [2021-06-17 09:51:29,317 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-sum-1-dsl.wvr.bpl [2021-06-17 09:51:29,321 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-17 09:51:29,321 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-17 09:51:29,321 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-17 09:51:29,322 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-17 09:51:29,464 INFO L149 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2021-06-17 09:51:29,477 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-17 09:51:29,546 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-17 09:51:29,546 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-17 09:51:29,546 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-17 09:51:29,546 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-17 09:51:29,546 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-17 09:51:29,546 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-17 09:51:29,546 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-17 09:51:29,546 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == thread4Thread1of1ForFork1======== [2021-06-17 09:51:30,253 INFO L301 ceAbstractionStarter]: Result for error location thread4Thread1of1ForFork1 was SAFE (1/5) [2021-06-17 09:51:30,254 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-17 09:51:30,300 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-17 09:51:30,301 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-17 09:51:30,301 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-17 09:51:30,301 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-17 09:51:30,301 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-17 09:51:30,301 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-17 09:51:30,301 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-17 09:51:30,301 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == thread1======== [2021-06-17 09:51:30,632 INFO L301 ceAbstractionStarter]: Result for error location thread1 was SAFE (2/5) [2021-06-17 09:51:30,632 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-06-17 09:51:30,639 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-17 09:51:30,639 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-17 09:51:30,639 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-17 09:51:30,639 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-17 09:51:30,639 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-17 09:51:30,639 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-17 09:51:30,639 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-17 09:51:30,640 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == thread4======== Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-17 09:51:30,911 INFO L301 ceAbstractionStarter]: Result for error location thread4 was SAFE (3/5) [2021-06-17 09:51:30,912 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-06-17 09:51:30,925 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-17 09:51:30,925 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-17 09:51:30,925 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-17 09:51:30,925 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-17 09:51:30,925 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-17 09:51:30,925 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-17 09:51:30,925 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-17 09:51:30,925 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == thread1Thread1of1ForFork0======== Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-17 09:51:31,228 INFO L301 ceAbstractionStarter]: Result for error location thread1Thread1of1ForFork0 was SAFE (4/5) [2021-06-17 09:51:31,229 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-06-17 09:51:31,260 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-17 09:51:31,261 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-17 09:51:31,261 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-17 09:51:31,261 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-17 09:51:31,261 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-17 09:51:31,261 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-17 09:51:31,261 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-17 09:51:31,261 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-17 09:51:31,307 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 09:51:31,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 09:51:31,311 INFO L82 PathProgramCache]: Analyzing trace with hash 2005582466, now seen corresponding path program 1 times [2021-06-17 09:51:31,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 09:51:31,316 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655888932] [2021-06-17 09:51:31,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 09:51:31,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 09:51:31,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 09:51:31,495 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 09:51:31,495 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655888932] [2021-06-17 09:51:31,495 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655888932] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-17 09:51:31,496 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-17 09:51:31,496 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-17 09:51:31,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866283459] [2021-06-17 09:51:31,503 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-17 09:51:31,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 09:51:31,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-17 09:51:31,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-17 09:51:31,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:51:31,538 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 09:51:31,539 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 09:51:31,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:51:31,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:51:31,586 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-17 09:51:31,586 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 09:51:31,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 09:51:31,586 INFO L82 PathProgramCache]: Analyzing trace with hash -1206199379, now seen corresponding path program 1 times [2021-06-17 09:51:31,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 09:51:31,587 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837184876] [2021-06-17 09:51:31,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 09:51:31,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 09:51:31,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 09:51:31,605 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 09:51:31,605 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837184876] [2021-06-17 09:51:31,605 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837184876] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-17 09:51:31,606 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-17 09:51:31,606 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-17 09:51:31,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275349347] [2021-06-17 09:51:31,607 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-17 09:51:31,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 09:51:31,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-17 09:51:31,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-17 09:51:31,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:51:31,607 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 09:51:31,607 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 09:51:31,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:51:31,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:51:31,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:51:31,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:31,634 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-17 09:51:31,635 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 09:51:31,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 09:51:31,635 INFO L82 PathProgramCache]: Analyzing trace with hash -1015408089, now seen corresponding path program 1 times [2021-06-17 09:51:31,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 09:51:31,635 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067800830] [2021-06-17 09:51:31,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 09:51:31,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 09:51:31,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 09:51:31,660 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 09:51:31,660 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067800830] [2021-06-17 09:51:31,660 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067800830] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-17 09:51:31,660 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-17 09:51:31,660 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-17 09:51:31,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394343626] [2021-06-17 09:51:31,661 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-17 09:51:31,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 09:51:31,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-17 09:51:31,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-17 09:51:31,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:51:31,661 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 09:51:31,661 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 09:51:31,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:51:31,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:31,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:51:31,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:51:31,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:31,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 09:51:31,707 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-17 09:51:31,707 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 09:51:31,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 09:51:31,707 INFO L82 PathProgramCache]: Analyzing trace with hash -1436688811, now seen corresponding path program 1 times [2021-06-17 09:51:31,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 09:51:31,708 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57830320] [2021-06-17 09:51:31,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 09:51:31,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 09:51:31,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 09:51:31,720 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 09:51:31,721 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57830320] [2021-06-17 09:51:31,721 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57830320] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-17 09:51:31,721 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-17 09:51:31,721 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-17 09:51:31,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118129018] [2021-06-17 09:51:31,721 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-17 09:51:31,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 09:51:31,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-17 09:51:31,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-17 09:51:31,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:51:31,722 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 09:51:31,722 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 09:51:31,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:51:31,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:31,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 09:51:31,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:51:31,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:51:31,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:31,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 09:51:31,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:31,777 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-17 09:51:31,777 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 09:51:31,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 09:51:31,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1180466833, now seen corresponding path program 1 times [2021-06-17 09:51:31,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 09:51:31,777 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294260399] [2021-06-17 09:51:31,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 09:51:31,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 09:51:31,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 09:51:31,799 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 09:51:31,799 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294260399] [2021-06-17 09:51:31,799 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294260399] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-17 09:51:31,799 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-17 09:51:31,799 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-17 09:51:31,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687639881] [2021-06-17 09:51:31,799 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-17 09:51:31,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 09:51:31,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-17 09:51:31,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-17 09:51:31,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:51:31,800 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 09:51:31,800 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 09:51:31,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:51:31,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:31,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 09:51:31,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:31,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:51:31,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:51:31,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:31,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 09:51:31,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:31,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 09:51:31,863 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-17 09:51:31,863 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 09:51:31,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 09:51:31,863 INFO L82 PathProgramCache]: Analyzing trace with hash -1828489382, now seen corresponding path program 1 times [2021-06-17 09:51:31,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 09:51:31,863 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087814716] [2021-06-17 09:51:31,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 09:51:31,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 09:51:31,987 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 09:51:31,987 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 09:51:31,987 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087814716] [2021-06-17 09:51:31,988 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087814716] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 09:51:31,988 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127630800] [2021-06-17 09:51:31,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 09:51:32,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 09:51:32,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 21 conjunts are in the unsatisfiable core [2021-06-17 09:51:32,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 09:51:32,181 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 09:51:32,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-06-17 09:51:32,186 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 09:51:32,192 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 09:51:32,195 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 09:51:32,195 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:10 [2021-06-17 09:51:32,266 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 09:51:32,266 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127630800] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 09:51:32,266 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 09:51:32,266 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 13 [2021-06-17 09:51:32,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652800441] [2021-06-17 09:51:32,267 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-17 09:51:32,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 09:51:32,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-17 09:51:32,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-06-17 09:51:32,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:51:32,267 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 09:51:32,267 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 09:51:32,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:51:32,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:32,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 09:51:32,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:32,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 09:51:32,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:51:32,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:51:32,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:32,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 09:51:32,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:32,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 09:51:32,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 09:51:32,720 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 09:51:32,721 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 09:51:32,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 09:51:32,721 INFO L82 PathProgramCache]: Analyzing trace with hash 241223525, now seen corresponding path program 1 times [2021-06-17 09:51:32,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 09:51:32,721 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633604509] [2021-06-17 09:51:32,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 09:51:32,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 09:51:32,768 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 09:51:32,768 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 09:51:32,768 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633604509] [2021-06-17 09:51:32,768 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633604509] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 09:51:32,768 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1968311476] [2021-06-17 09:51:32,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 09:51:32,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 09:51:32,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 6 conjunts are in the unsatisfiable core [2021-06-17 09:51:32,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 09:51:32,927 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 09:51:32,927 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1968311476] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 09:51:32,927 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 09:51:32,927 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-06-17 09:51:32,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618951424] [2021-06-17 09:51:32,927 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-17 09:51:32,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 09:51:32,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-17 09:51:32,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-06-17 09:51:32,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:51:32,929 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 09:51:32,929 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 09:51:32,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:51:32,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:32,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 09:51:32,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:32,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 09:51:32,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 09:51:32,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:51:33,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:51:33,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:33,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 09:51:33,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:33,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 09:51:33,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 09:51:33,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 09:51:33,331 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 09:51:33,332 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 09:51:33,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 09:51:33,333 INFO L82 PathProgramCache]: Analyzing trace with hash 574410414, now seen corresponding path program 1 times [2021-06-17 09:51:33,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 09:51:33,334 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107881332] [2021-06-17 09:51:33,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 09:51:33,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 09:51:33,513 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 09:51:33,513 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 09:51:33,513 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107881332] [2021-06-17 09:51:33,513 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107881332] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 09:51:33,513 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1485172960] [2021-06-17 09:51:33,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 09:51:33,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 09:51:33,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 21 conjunts are in the unsatisfiable core [2021-06-17 09:51:33,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 09:51:33,703 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 09:51:33,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-06-17 09:51:33,705 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 09:51:33,711 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 09:51:33,714 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 09:51:33,714 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:10 [2021-06-17 09:51:33,758 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 09:51:33,758 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1485172960] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 09:51:33,758 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 09:51:33,759 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 13 [2021-06-17 09:51:33,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669837529] [2021-06-17 09:51:33,759 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-17 09:51:33,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 09:51:33,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-17 09:51:33,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-06-17 09:51:33,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:51:33,760 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 09:51:33,760 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 09:51:33,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:51:33,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:33,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 09:51:33,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:33,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 09:51:33,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 09:51:33,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 09:51:33,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:51:34,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:51:34,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:34,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 09:51:34,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:34,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 09:51:34,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 09:51:34,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:51:34,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 09:51:34,265 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-06-17 09:51:34,265 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 09:51:34,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 09:51:34,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1878646539, now seen corresponding path program 1 times [2021-06-17 09:51:34,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 09:51:34,266 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997968306] [2021-06-17 09:51:34,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 09:51:34,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 09:51:34,303 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 09:51:34,303 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 09:51:34,303 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997968306] [2021-06-17 09:51:34,303 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997968306] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 09:51:34,303 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336250380] [2021-06-17 09:51:34,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 09:51:34,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 09:51:34,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 6 conjunts are in the unsatisfiable core [2021-06-17 09:51:34,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 09:51:34,480 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 09:51:34,480 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1336250380] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 09:51:34,480 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 09:51:34,480 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-06-17 09:51:34,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278384682] [2021-06-17 09:51:34,480 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-17 09:51:34,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 09:51:34,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-17 09:51:34,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-06-17 09:51:34,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:51:34,481 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 09:51:34,481 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 10 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 09:51:34,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:51:34,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:34,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 09:51:34,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:34,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 09:51:34,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 09:51:34,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:51:34,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 09:51:34,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:51:34,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:51:34,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:34,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 09:51:34,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:34,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 09:51:34,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 09:51:34,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:51:34,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 09:51:34,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 09:51:34,873 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 09:51:34,873 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 09:51:34,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 09:51:34,874 INFO L82 PathProgramCache]: Analyzing trace with hash -704330388, now seen corresponding path program 1 times [2021-06-17 09:51:34,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 09:51:34,874 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811998577] [2021-06-17 09:51:34,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 09:51:34,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 09:51:35,159 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 09:51:35,159 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 09:51:35,159 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811998577] [2021-06-17 09:51:35,159 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811998577] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 09:51:35,159 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144735916] [2021-06-17 09:51:35,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 09:51:35,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 09:51:35,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 33 conjunts are in the unsatisfiable core [2021-06-17 09:51:35,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 09:51:35,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2021-06-17 09:51:35,351 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 09:51:35,352 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 09:51:35,353 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 09:51:35,353 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:7 [2021-06-17 09:51:35,382 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 09:51:35,382 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [144735916] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 09:51:35,382 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 09:51:35,382 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 21 [2021-06-17 09:51:35,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566173581] [2021-06-17 09:51:35,383 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-06-17 09:51:35,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 09:51:35,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-06-17 09:51:35,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2021-06-17 09:51:35,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:51:35,383 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 09:51:35,383 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 2.2857142857142856) internal successors, (48), 21 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 09:51:35,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:51:35,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:35,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 09:51:35,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:35,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 09:51:35,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 09:51:35,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:51:35,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 09:51:35,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 09:51:35,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:51:36,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:51:36,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:36,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 09:51:36,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:36,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 09:51:36,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 09:51:36,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:51:36,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 09:51:36,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 09:51:36,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-17 09:51:36,381 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 09:51:36,381 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 09:51:36,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 09:51:36,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1803487889, now seen corresponding path program 2 times [2021-06-17 09:51:36,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 09:51:36,381 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792820524] [2021-06-17 09:51:36,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 09:51:36,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 09:51:36,423 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 09:51:36,423 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 09:51:36,423 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792820524] [2021-06-17 09:51:36,424 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792820524] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 09:51:36,424 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313696665] [2021-06-17 09:51:36,424 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 09:51:36,521 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 09:51:36,521 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 09:51:36,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-17 09:51:36,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 09:51:36,609 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 09:51:36,609 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [313696665] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 09:51:36,609 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 09:51:36,609 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 13 [2021-06-17 09:51:36,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947742581] [2021-06-17 09:51:36,610 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-17 09:51:36,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 09:51:36,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-17 09:51:36,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-06-17 09:51:36,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:51:36,610 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 09:51:36,611 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.5384615384615383) 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) [2021-06-17 09:51:36,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:51:36,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:36,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 09:51:36,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:36,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 09:51:36,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 09:51:36,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:51:36,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 09:51:36,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 09:51:36,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-17 09:51:36,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:51:36,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:51:36,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:36,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 09:51:36,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:36,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 09:51:36,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 09:51:36,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:51:36,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 09:51:36,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 09:51:36,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-17 09:51:36,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 09:51:37,101 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-06-17 09:51:37,101 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 09:51:37,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 09:51:37,101 INFO L82 PathProgramCache]: Analyzing trace with hash -1829975252, now seen corresponding path program 2 times [2021-06-17 09:51:37,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 09:51:37,102 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838621899] [2021-06-17 09:51:37,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 09:51:37,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 09:51:37,356 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 09:51:37,356 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 09:51:37,356 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838621899] [2021-06-17 09:51:37,356 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838621899] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 09:51:37,356 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983257629] [2021-06-17 09:51:37,356 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 09:51:37,396 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 09:51:37,397 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 09:51:37,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 34 conjunts are in the unsatisfiable core [2021-06-17 09:51:37,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 09:51:37,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:51:37,686 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 09:51:37,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2021-06-17 09:51:37,687 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 09:51:37,691 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 09:51:37,692 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 09:51:37,692 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:5 [2021-06-17 09:51:37,727 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 09:51:37,727 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [983257629] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 09:51:37,727 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 09:51:37,728 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 23 [2021-06-17 09:51:37,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467191947] [2021-06-17 09:51:37,728 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-06-17 09:51:37,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 09:51:37,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-06-17 09:51:37,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=432, Unknown=0, NotChecked=0, Total=506 [2021-06-17 09:51:37,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:51:37,729 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 09:51:37,729 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.0869565217391304) internal successors, (48), 23 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 09:51:37,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:51:37,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:37,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 09:51:37,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:37,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 09:51:37,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 09:51:37,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:51:37,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 09:51:37,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 09:51:37,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-17 09:51:37,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-17 09:51:37,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:51:39,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:51:39,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:39,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 09:51:39,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:39,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 09:51:39,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 09:51:39,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:51:39,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 09:51:39,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 09:51:39,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 09:51:39,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 09:51:39,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-17 09:51:39,668 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 09:51:39,669 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 09:51:39,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 09:51:39,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1848340549, now seen corresponding path program 3 times [2021-06-17 09:51:39,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 09:51:39,669 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739856117] [2021-06-17 09:51:39,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 09:51:39,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 09:51:39,740 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 09:51:39,740 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 09:51:39,740 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739856117] [2021-06-17 09:51:39,740 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739856117] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 09:51:39,740 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640567558] [2021-06-17 09:51:39,740 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 09:51:39,804 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-17 09:51:39,804 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 09:51:39,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-17 09:51:39,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 09:51:39,933 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 09:51:39,934 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640567558] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 09:51:39,934 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 09:51:39,934 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 13 [2021-06-17 09:51:39,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667343864] [2021-06-17 09:51:39,934 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-17 09:51:39,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 09:51:39,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-17 09:51:39,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-06-17 09:51:39,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:51:39,935 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 09:51:39,935 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 13 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 09:51:39,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:51:39,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:39,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 09:51:39,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:39,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 09:51:39,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 09:51:39,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:51:39,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 09:51:39,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 09:51:39,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 09:51:39,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 09:51:39,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-17 09:51:39,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:51:40,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:51:40,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:40,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 09:51:40,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:40,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 09:51:40,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 09:51:40,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:51:40,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 09:51:40,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 09:51:40,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 09:51:40,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 09:51:40,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-17 09:51:40,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 09:51:40,459 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-06-17 09:51:40,459 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 09:51:40,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 09:51:40,460 INFO L82 PathProgramCache]: Analyzing trace with hash 589963942, now seen corresponding path program 4 times [2021-06-17 09:51:40,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 09:51:40,460 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096141351] [2021-06-17 09:51:40,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 09:51:40,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 09:51:40,781 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 09:51:40,781 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 09:51:40,781 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096141351] [2021-06-17 09:51:40,781 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096141351] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 09:51:40,781 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947612062] [2021-06-17 09:51:40,781 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 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 09:51:40,828 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-17 09:51:40,828 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 09:51:40,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 45 conjunts are in the unsatisfiable core [2021-06-17 09:51:40,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 09:51:41,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-06-17 09:51:41,109 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 09:51:41,111 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 09:51:41,111 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 09:51:41,111 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:10 [2021-06-17 09:51:41,189 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 09:51:41,189 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947612062] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 09:51:41,189 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 09:51:41,189 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16] total 30 [2021-06-17 09:51:41,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559800672] [2021-06-17 09:51:41,190 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-06-17 09:51:41,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 09:51:41,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-06-17 09:51:41,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=768, Unknown=0, NotChecked=0, Total=870 [2021-06-17 09:51:41,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:51:41,190 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 09:51:41,191 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 1.8666666666666667) internal successors, (56), 30 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 09:51:41,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:51:41,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:41,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 09:51:41,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:41,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 09:51:41,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 09:51:41,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:51:41,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 09:51:41,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 09:51:41,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 09:51:41,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 09:51:41,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-17 09:51:41,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 09:51:41,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:51:43,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:51:43,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:43,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 09:51:43,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:43,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 09:51:43,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 09:51:43,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:51:43,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 09:51:43,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 09:51:43,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 09:51:43,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 09:51:43,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-17 09:51:43,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 09:51:43,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-17 09:51:43,438 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 09:51:43,439 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 09:51:43,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 09:51:43,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1574498318, now seen corresponding path program 5 times [2021-06-17 09:51:43,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 09:51:43,440 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13327278] [2021-06-17 09:51:43,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 09:51:43,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 09:51:43,834 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 09:51:43,834 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 09:51:43,834 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13327278] [2021-06-17 09:51:43,834 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13327278] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 09:51:43,835 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563903553] [2021-06-17 09:51:43,835 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 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 09:51:43,875 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-06-17 09:51:43,876 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 09:51:43,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 45 conjunts are in the unsatisfiable core [2021-06-17 09:51:43,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 09:51:44,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2021-06-17 09:51:44,206 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 09:51:44,207 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 09:51:44,207 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 09:51:44,208 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:5 [2021-06-17 09:51:44,284 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 09:51:44,284 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563903553] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 09:51:44,284 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 09:51:44,284 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16] total 30 [2021-06-17 09:51:44,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838940442] [2021-06-17 09:51:44,284 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-06-17 09:51:44,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 09:51:44,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-06-17 09:51:44,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=773, Unknown=0, NotChecked=0, Total=870 [2021-06-17 09:51:44,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:51:44,289 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 09:51:44,289 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 1.9) internal successors, (57), 30 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 09:51:44,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:51:44,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:44,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 09:51:44,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:44,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 09:51:44,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 09:51:44,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:51:44,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 09:51:44,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 09:51:44,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 09:51:44,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 09:51:44,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-17 09:51:44,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 09:51:44,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-06-17 09:51:44,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:51:46,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:51:46,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:46,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 09:51:46,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:46,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 09:51:46,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 09:51:46,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:51:46,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 09:51:46,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 09:51:46,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 09:51:46,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 09:51:46,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-17 09:51:46,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:51:46,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-17 09:51:46,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-17 09:51:46,765 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-06-17 09:51:46,765 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 09:51:46,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 09:51:46,765 INFO L82 PathProgramCache]: Analyzing trace with hash 1411426650, now seen corresponding path program 6 times [2021-06-17 09:51:46,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 09:51:46,766 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011572474] [2021-06-17 09:51:46,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 09:51:46,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 09:51:47,152 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 09:51:47,153 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 09:51:47,153 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011572474] [2021-06-17 09:51:47,153 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011572474] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 09:51:47,153 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719899129] [2021-06-17 09:51:47,153 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 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 09:51:47,203 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-06-17 09:51:47,203 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 09:51:47,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 58 conjunts are in the unsatisfiable core [2021-06-17 09:51:47,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 09:51:47,745 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 09:51:47,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2021-06-17 09:51:47,746 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 09:51:47,750 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 09:51:47,754 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 09:51:47,754 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:39, output treesize:5 [2021-06-17 09:51:47,797 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 09:51:47,797 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719899129] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 09:51:47,797 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 09:51:47,797 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 38 [2021-06-17 09:51:47,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959902230] [2021-06-17 09:51:47,798 INFO L462 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-06-17 09:51:47,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 09:51:47,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-06-17 09:51:47,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=1274, Unknown=0, NotChecked=0, Total=1406 [2021-06-17 09:51:47,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:51:47,798 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 09:51:47,799 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 38 states, 38 states have (on average 1.6842105263157894) internal successors, (64), 38 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 09:51:47,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:51:47,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:47,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 09:51:47,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:47,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 09:51:47,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 09:51:47,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:51:47,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 09:51:47,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 09:51:47,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 09:51:47,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 09:51:47,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-17 09:51:47,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:51:47,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-06-17 09:51:47,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-17 09:51:47,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:51:50,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:51:50,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:50,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 09:51:50,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:50,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 09:51:50,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 09:51:50,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:51:50,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 09:51:50,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 09:51:50,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 09:51:50,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 09:51:50,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-17 09:51:50,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:51:50,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-17 09:51:50,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-17 09:51:50,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-06-17 09:51:50,917 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-06-17 09:51:50,917 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 09:51:50,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 09:51:50,918 INFO L82 PathProgramCache]: Analyzing trace with hash 285781786, now seen corresponding path program 7 times [2021-06-17 09:51:50,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 09:51:50,918 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482934852] [2021-06-17 09:51:50,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 09:51:50,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 09:51:51,341 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 09:51:51,341 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 09:51:51,341 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482934852] [2021-06-17 09:51:51,341 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482934852] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 09:51:51,341 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1941899771] [2021-06-17 09:51:51,341 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 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 09:51:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 09:51:51,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 57 conjunts are in the unsatisfiable core [2021-06-17 09:51:51,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 09:51:51,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2021-06-17 09:51:51,864 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 09:51:51,865 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 09:51:51,866 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 09:51:51,866 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:33, output treesize:7 [2021-06-17 09:51:51,908 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 09:51:51,908 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1941899771] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 09:51:51,908 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 09:51:51,908 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 20] total 38 [2021-06-17 09:51:51,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991129241] [2021-06-17 09:51:51,909 INFO L462 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-06-17 09:51:51,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 09:51:51,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-06-17 09:51:51,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=1272, Unknown=0, NotChecked=0, Total=1406 [2021-06-17 09:51:51,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:51:51,910 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 09:51:51,910 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 38 states, 38 states have (on average 1.6842105263157894) internal successors, (64), 38 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 09:51:51,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:51:51,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:51,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 09:51:51,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:51,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 09:51:51,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 09:51:51,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:51:51,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 09:51:51,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 09:51:51,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 09:51:51,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 09:51:51,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-17 09:51:51,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:51:51,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-06-17 09:51:51,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-17 09:51:51,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-06-17 09:51:51,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:51:54,771 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2021-06-17 09:51:55,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:51:55,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:55,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 09:51:55,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:55,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 09:51:55,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 09:51:55,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:51:55,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 09:51:55,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 09:51:55,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 09:51:55,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 09:51:55,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-17 09:51:55,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:51:55,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-17 09:51:55,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-17 09:51:55,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-06-17 09:51:55,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-06-17 09:51:55,789 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-06-17 09:51:55,789 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 09:51:55,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 09:51:55,789 INFO L82 PathProgramCache]: Analyzing trace with hash -469073678, now seen corresponding path program 8 times [2021-06-17 09:51:55,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 09:51:55,789 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789850240] [2021-06-17 09:51:55,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 09:51:55,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 09:51:56,213 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 09:51:56,214 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 09:51:56,214 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789850240] [2021-06-17 09:51:56,214 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789850240] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 09:51:56,214 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85181266] [2021-06-17 09:51:56,214 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 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 09:51:56,253 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 09:51:56,253 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 09:51:56,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 70 conjunts are in the unsatisfiable core [2021-06-17 09:51:56,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 09:51:56,867 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 09:51:56,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 41 treesize of output 61 [2021-06-17 09:51:56,877 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 09:51:56,885 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 09:51:56,889 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 09:51:56,889 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:26 [2021-06-17 09:51:57,026 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 09:51:57,026 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85181266] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 09:51:57,026 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 09:51:57,026 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 25] total 46 [2021-06-17 09:51:57,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553309612] [2021-06-17 09:51:57,027 INFO L462 AbstractCegarLoop]: Interpolant automaton has 46 states [2021-06-17 09:51:57,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 09:51:57,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-06-17 09:51:57,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=1855, Unknown=0, NotChecked=0, Total=2070 [2021-06-17 09:51:57,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:51:57,040 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 09:51:57,040 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 46 states, 46 states have (on average 1.6304347826086956) internal successors, (75), 46 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 09:51:57,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:51:57,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:57,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 09:51:57,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:51:57,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 09:51:57,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 09:51:57,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:51:57,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 09:51:57,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 09:51:57,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 09:51:57,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 09:51:57,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-17 09:51:57,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:51:57,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-06-17 09:51:57,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-17 09:51:57,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-06-17 09:51:57,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-06-17 09:51:57,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:51:59,375 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2021-06-17 09:51:59,635 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2021-06-17 09:52:00,414 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 62 [2021-06-17 09:52:01,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:52:01,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:52:01,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 09:52:01,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:52:01,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 09:52:01,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 09:52:01,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:52:01,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 09:52:01,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 09:52:01,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 09:52:01,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 09:52:01,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-17 09:52:01,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:52:01,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-17 09:52:01,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-17 09:52:01,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-06-17 09:52:01,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-06-17 09:52:01,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-06-17 09:52:01,556 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-06-17 09:52:01,557 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 09:52:01,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 09:52:01,557 INFO L82 PathProgramCache]: Analyzing trace with hash 515460698, now seen corresponding path program 9 times [2021-06-17 09:52:01,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 09:52:01,557 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97123139] [2021-06-17 09:52:01,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 09:52:01,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 09:52:02,136 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 09:52:02,136 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 09:52:02,136 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97123139] [2021-06-17 09:52:02,136 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97123139] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 09:52:02,136 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565251295] [2021-06-17 09:52:02,136 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 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 09:52:02,214 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-06-17 09:52:02,214 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 09:52:02,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 69 conjunts are in the unsatisfiable core [2021-06-17 09:52:02,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 09:52:03,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:03,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:03,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:03,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:03,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:03,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:03,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:03,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:03,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:03,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:03,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:03,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:03,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:03,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:03,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:03,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:03,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:03,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:03,121 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 09:52:03,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 18 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 51 treesize of output 205 [2021-06-17 09:52:04,981 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 829 DAG size of output: 476 [2021-06-17 09:52:05,673 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 633 DAG size of output: 542 [2021-06-17 09:52:05,849 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 653 DAG size of output: 560 [2021-06-17 09:52:06,025 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 653 DAG size of output: 560 [2021-06-17 09:52:06,231 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 656 DAG size of output: 563 [2021-06-17 09:52:06,405 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 537 DAG size of output: 537 [2021-06-17 09:52:06,729 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 518 DAG size of output: 519 [2021-06-17 09:52:07,559 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 624 DAG size of output: 481 [2021-06-17 09:52:08,148 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 557 DAG size of output: 516 [2021-06-17 09:52:08,447 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 1087 DAG size of output: 882 [2021-06-17 09:52:08,896 WARN L205 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 1184 DAG size of output: 958 [2021-06-17 09:52:09,339 WARN L205 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 1184 DAG size of output: 958 [2021-06-17 09:52:10,362 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 1189 DAG size of output: 1073 [2021-06-17 09:52:11,855 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 646 DAG size of output: 520 [2021-06-17 09:52:12,661 WARN L205 SmtUtils]: Spent 799.00 ms on a formula simplification. DAG size of input: 2009 DAG size of output: 1392 [2021-06-17 09:52:13,579 WARN L205 SmtUtils]: Spent 908.00 ms on a formula simplification. DAG size of input: 2630 DAG size of output: 1718 [2021-06-17 09:52:14,489 WARN L205 SmtUtils]: Spent 899.00 ms on a formula simplification. DAG size of input: 2630 DAG size of output: 1718 [2021-06-17 09:52:15,415 WARN L205 SmtUtils]: Spent 895.00 ms on a formula simplification. DAG size of input: 2630 DAG size of output: 1708 [2021-06-17 09:52:16,195 WARN L205 SmtUtils]: Spent 772.00 ms on a formula simplification. DAG size of input: 1636 DAG size of output: 1644 [2021-06-17 09:52:16,238 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: and 5 xjuncts. [2021-06-17 09:52:20,265 WARN L205 SmtUtils]: Spent 4.03 s on a formula simplification. DAG size of input: 1642 DAG size of output: 17 [2021-06-17 09:52:20,266 INFO L628 ElimStorePlain]: treesize reduction 18864, result has 0.1 percent of original size [2021-06-17 09:52:20,268 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 09:52:20,268 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:64, output treesize:18 [2021-06-17 09:52:20,386 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 09:52:20,386 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1565251295] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 09:52:20,386 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 09:52:20,386 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 26] total 48 [2021-06-17 09:52:20,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682597547] [2021-06-17 09:52:20,386 INFO L462 AbstractCegarLoop]: Interpolant automaton has 48 states [2021-06-17 09:52:20,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 09:52:20,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-06-17 09:52:20,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=2097, Unknown=0, NotChecked=0, Total=2256 [2021-06-17 09:52:20,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:52:20,387 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 09:52:20,400 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 48 states, 48 states have (on average 1.6041666666666667) internal successors, (77), 48 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 09:52:20,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:52:20,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:52:20,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 09:52:20,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:52:20,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 09:52:20,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 09:52:20,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:52:20,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 09:52:20,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 09:52:20,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 09:52:20,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 09:52:20,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-17 09:52:20,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:52:20,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-06-17 09:52:20,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-17 09:52:20,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-06-17 09:52:20,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-06-17 09:52:20,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-06-17 09:52:20,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:52:25,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:52:25,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:52:25,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 09:52:25,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:52:25,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 09:52:25,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 09:52:25,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:52:25,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 09:52:25,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 09:52:25,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 09:52:25,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 09:52:25,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-17 09:52:25,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:52:25,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-17 09:52:25,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-17 09:52:25,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-06-17 09:52:25,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-06-17 09:52:25,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-06-17 09:52:25,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-06-17 09:52:25,696 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-06-17 09:52:25,696 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 09:52:25,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 09:52:25,697 INFO L82 PathProgramCache]: Analyzing trace with hash -707722842, now seen corresponding path program 10 times [2021-06-17 09:52:25,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 09:52:25,697 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041451397] [2021-06-17 09:52:25,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 09:52:25,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 09:52:26,192 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 30 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-17 09:52:26,192 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 09:52:26,192 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041451397] [2021-06-17 09:52:26,192 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041451397] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 09:52:26,192 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117669839] [2021-06-17 09:52:26,192 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 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 09:52:26,265 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-17 09:52:26,265 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 09:52:26,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 81 conjunts are in the unsatisfiable core [2021-06-17 09:52:26,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 09:52:27,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2021-06-17 09:52:27,126 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 09:52:27,127 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 09:52:27,128 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 09:52:27,128 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:45, output treesize:7 [2021-06-17 09:52:27,168 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 09:52:27,168 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117669839] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 09:52:27,168 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 09:52:27,169 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 28] total 51 [2021-06-17 09:52:27,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201395267] [2021-06-17 09:52:27,169 INFO L462 AbstractCegarLoop]: Interpolant automaton has 51 states [2021-06-17 09:52:27,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 09:52:27,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2021-06-17 09:52:27,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=2326, Unknown=0, NotChecked=0, Total=2550 [2021-06-17 09:52:27,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:52:27,170 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 09:52:27,171 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 51 states, 51 states have (on average 1.5686274509803921) internal successors, (80), 51 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 09:52:27,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:52:27,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:52:27,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 09:52:27,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:52:27,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 09:52:27,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 09:52:27,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:52:27,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 09:52:27,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 09:52:27,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 09:52:27,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 09:52:27,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-17 09:52:27,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:52:27,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-06-17 09:52:27,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-17 09:52:27,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-06-17 09:52:27,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-06-17 09:52:27,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2021-06-17 09:52:27,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2021-06-17 09:52:27,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:52:31,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:52:31,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:52:31,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 09:52:31,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:52:31,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 09:52:31,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 09:52:31,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:52:31,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 09:52:31,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 09:52:31,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 09:52:31,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 09:52:31,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-17 09:52:31,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:52:31,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-17 09:52:31,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-17 09:52:31,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-06-17 09:52:31,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-06-17 09:52:31,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-06-17 09:52:31,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-06-17 09:52:31,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-06-17 09:52:31,552 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable857 [2021-06-17 09:52:31,553 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 09:52:31,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 09:52:31,553 INFO L82 PathProgramCache]: Analyzing trace with hash -1833367706, now seen corresponding path program 11 times [2021-06-17 09:52:31,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 09:52:31,553 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593951980] [2021-06-17 09:52:31,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 09:52:31,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 09:52:32,122 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 4 proven. 32 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-17 09:52:32,122 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 09:52:32,122 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593951980] [2021-06-17 09:52:32,122 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593951980] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 09:52:32,122 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896732950] [2021-06-17 09:52:32,122 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 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 09:52:32,179 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-06-17 09:52:32,179 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 09:52:32,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 80 conjunts are in the unsatisfiable core [2021-06-17 09:52:32,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 09:52:33,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:33,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:33,249 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 09:52:33,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:33,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:33,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:33,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:33,252 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 09:52:33,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:33,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:33,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:33,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:33,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 21 [2021-06-17 09:52:33,258 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 09:52:33,264 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 09:52:33,266 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 09:52:33,266 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:63, output treesize:5 [2021-06-17 09:52:33,316 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 09:52:33,316 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1896732950] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 09:52:33,316 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 09:52:33,316 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 29] total 53 [2021-06-17 09:52:33,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062308366] [2021-06-17 09:52:33,316 INFO L462 AbstractCegarLoop]: Interpolant automaton has 53 states [2021-06-17 09:52:33,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 09:52:33,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-06-17 09:52:33,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=2545, Unknown=0, NotChecked=0, Total=2756 [2021-06-17 09:52:33,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:52:33,318 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 09:52:33,318 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 53 states, 53 states have (on average 1.509433962264151) internal successors, (80), 53 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 09:52:33,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:52:33,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:52:33,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 09:52:33,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:52:33,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 09:52:33,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 09:52:33,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:52:33,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 09:52:33,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 09:52:33,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 09:52:33,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 09:52:33,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-17 09:52:33,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:52:33,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-06-17 09:52:33,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-17 09:52:33,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-06-17 09:52:33,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-06-17 09:52:33,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2021-06-17 09:52:33,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2021-06-17 09:52:33,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-06-17 09:52:33,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 09:52:35,378 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 43 [2021-06-17 09:52:41,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 09:52:41,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:52:41,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 09:52:41,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 09:52:41,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 09:52:41,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 09:52:41,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:52:41,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 09:52:41,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 09:52:41,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 09:52:41,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 09:52:41,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-17 09:52:41,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 09:52:41,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-17 09:52:41,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-17 09:52:41,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-06-17 09:52:41,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-06-17 09:52:41,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-06-17 09:52:41,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-06-17 09:52:41,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-06-17 09:52:41,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-06-17 09:52:42,196 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable858,22 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 09:52:42,196 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 09:52:42,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 09:52:42,197 INFO L82 PathProgramCache]: Analyzing trace with hash 1561800144, now seen corresponding path program 12 times [2021-06-17 09:52:42,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 09:52:42,197 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116162212] [2021-06-17 09:52:42,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 09:52:42,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 09:52:42,925 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-06-17 09:52:42,925 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 09:52:42,925 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116162212] [2021-06-17 09:52:42,925 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116162212] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 09:52:42,925 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780720930] [2021-06-17 09:52:42,925 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 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 09:52:42,989 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-06-17 09:52:42,989 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 09:52:42,990 WARN L261 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 117 conjunts are in the unsatisfiable core [2021-06-17 09:52:42,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 09:52:44,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:44,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:44,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:44,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:44,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:44,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:44,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:44,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:44,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:44,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:44,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:44,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 09:52:45,111 WARN L205 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2021-06-17 09:52:45,111 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 09:52:45,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 13 select indices, 13 select index equivalence classes, 22 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 56 case distinctions, treesize of input 77 treesize of output 585 [2021-06-17 09:52:45,957 WARN L205 SmtUtils]: Spent 610.00 ms on a formula simplification. DAG size of input: 1735 DAG size of output: 1089 [2021-06-17 09:52:46,664 WARN L205 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 1759 DAG size of output: 1113 [2021-06-17 09:52:53,534 WARN L205 SmtUtils]: Spent 6.40 s on a formula simplification. DAG size of input: 6508 DAG size of output: 4447 [2021-06-17 09:53:00,517 WARN L205 SmtUtils]: Spent 6.89 s on a formula simplification. DAG size of input: 6527 DAG size of output: 4466 [2021-06-17 09:53:39,877 WARN L205 SmtUtils]: Spent 36.54 s on a formula simplification. DAG size of input: 29618 DAG size of output: 14972 [2021-06-17 09:54:19,661 WARN L205 SmtUtils]: Spent 39.44 s on a formula simplification. DAG size of input: 29647 DAG size of output: 14996 [2021-06-17 09:55:29,850 WARN L205 SmtUtils]: Spent 1.17 m on a formula simplification. DAG size of input: 14301 DAG size of output: 16008 [2021-06-17 09:56:40,628 WARN L205 SmtUtils]: Spent 1.18 m on a formula simplification. DAG size of input: 14287 DAG size of output: 15663 [2021-06-17 09:57:10,731 WARN L205 SmtUtils]: Spent 29.98 s on a formula simplification. DAG size of input: 14280 DAG size of output: 14280 [2021-06-17 09:57:56,766 WARN L205 SmtUtils]: Spent 45.94 s on a formula simplification. DAG size of input: 11422 DAG size of output: 12431 [2021-06-17 09:58:42,154 WARN L205 SmtUtils]: Spent 45.28 s on a formula simplification. DAG size of input: 11417 DAG size of output: 12230 [2021-06-17 09:59:01,970 WARN L205 SmtUtils]: Spent 19.72 s on a formula simplification. DAG size of input: 11411 DAG size of output: 11411 [2021-06-17 09:59:33,960 WARN L205 SmtUtils]: Spent 31.91 s on a formula simplification. DAG size of input: 9558 DAG size of output: 10447 [2021-06-17 09:59:35,912 WARN L205 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 2554 DAG size of output: 2554 [2021-06-17 09:59:38,978 WARN L205 SmtUtils]: Spent 3.05 s on a formula simplification. DAG size of input: 2200 DAG size of output: 2419 [2021-06-17 09:59:39,301 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 532 DAG size of output: 542 [2021-06-17 09:59:39,912 WARN L205 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 1200 DAG size of output: 930 [2021-06-17 09:59:40,793 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 1034 DAG size of output: 756 [2021-06-17 09:59:41,533 WARN L205 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 1363 DAG size of output: 1041 [2021-06-17 09:59:41,722 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 401 DAG size of output: 401 [2021-06-17 09:59:42,002 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 809 DAG size of output: 670 [2021-06-17 09:59:42,242 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 402 DAG size of output: 350 [2021-06-17 09:59:42,513 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 1005 DAG size of output: 812 [2021-06-17 09:59:42,628 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 373 DAG size of output: 375 [2021-06-17 09:59:43,183 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 776 DAG size of output: 699 [2021-06-17 09:59:43,543 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 1055 DAG size of output: 954 [2021-06-17 09:59:43,837 WARN L205 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 1195 DAG size of output: 1090 [2021-06-17 09:59:43,973 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 401 DAG size of output: 427 [2021-06-17 09:59:44,416 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 912 DAG size of output: 714 [2021-06-17 09:59:44,557 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 414 DAG size of output: 465 [2021-06-17 09:59:44,769 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 821 DAG size of output: 587 [2021-06-17 09:59:45,053 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 516 DAG size of output: 585 [2021-06-17 09:59:45,513 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 1046 DAG size of output: 796 [2021-06-17 09:59:51,260 WARN L205 SmtUtils]: Spent 5.73 s on a formula simplification. DAG size of input: 6653 DAG size of output: 5133 [2021-06-17 09:59:51,905 WARN L205 SmtUtils]: Spent 619.00 ms on a formula simplification. DAG size of input: 756 DAG size of output: 771 [2021-06-17 09:59:52,472 WARN L205 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 752 DAG size of output: 780 [2021-06-17 09:59:52,816 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 473 DAG size of output: 365 [2021-06-17 09:59:53,953 WARN L205 SmtUtils]: Spent 950.00 ms on a formula simplification. DAG size of input: 1754 DAG size of output: 1316 [2021-06-17 09:59:55,405 WARN L205 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 2065 DAG size of output: 1608 [2021-06-17 10:00:03,919 WARN L205 SmtUtils]: Spent 8.50 s on a formula simplification. DAG size of input: 7933 DAG size of output: 6097 [2021-06-17 10:00:06,349 WARN L205 SmtUtils]: Spent 2.39 s on a formula simplification. DAG size of input: 1968 DAG size of output: 2256 [2021-06-17 10:00:08,461 WARN L205 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 1875 DAG size of output: 2062 [2021-06-17 10:00:10,122 WARN L205 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 1780 DAG size of output: 1984 [2021-06-17 10:00:11,467 WARN L205 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1591 DAG size of output: 1804 [2021-06-17 10:00:11,844 WARN L205 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 1355 DAG size of output: 1355 [2021-06-17 10:00:11,952 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 393 DAG size of output: 406 [2021-06-17 10:00:12,401 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 858 DAG size of output: 769 [2021-06-17 10:00:12,619 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 1053 DAG size of output: 950 [2021-06-17 10:00:12,879 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 1158 DAG size of output: 1158 [2021-06-17 10:00:13,764 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 1250 DAG size of output: 946 [2021-06-17 10:00:14,196 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 816 DAG size of output: 734 [2021-06-17 10:00:14,713 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 1387 DAG size of output: 1159 [2021-06-17 10:00:14,835 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 415 DAG size of output: 470 [2021-06-17 10:00:15,271 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 931 DAG size of output: 714 [2021-06-17 10:00:16,085 WARN L205 SmtUtils]: Spent 806.00 ms on a formula simplification. DAG size of input: 3420 DAG size of output: 2679 [2021-06-17 10:00:17,358 WARN L205 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 4200 DAG size of output: 3280 [2021-06-17 10:00:19,809 WARN L205 SmtUtils]: Spent 2.43 s on a formula simplification. DAG size of input: 5226 DAG size of output: 4422 [2021-06-17 10:00:23,589 WARN L205 SmtUtils]: Spent 3.75 s on a formula simplification. DAG size of input: 6425 DAG size of output: 5355 [2021-06-17 10:00:28,965 WARN L205 SmtUtils]: Spent 5.34 s on a formula simplification. DAG size of input: 7566 DAG size of output: 6311 [2021-06-17 10:00:36,983 WARN L205 SmtUtils]: Spent 7.97 s on a formula simplification. DAG size of input: 8805 DAG size of output: 7349 [2021-06-17 10:00:39,124 WARN L205 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 1785 DAG size of output: 2068 [2021-06-17 10:00:39,378 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 432 DAG size of output: 432 [2021-06-17 10:00:39,685 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 828 DAG size of output: 646 [2021-06-17 10:00:40,216 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 532 DAG size of output: 579 [2021-06-17 10:00:40,356 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 415 DAG size of output: 440 [2021-06-17 10:00:40,558 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 831 DAG size of output: 703 [2021-06-17 10:00:40,900 WARN L205 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 1106 DAG size of output: 933 [2021-06-17 10:00:41,068 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 472 DAG size of output: 503 [2021-06-17 10:00:41,466 WARN L205 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 984 DAG size of output: 708 [2021-06-17 10:00:41,582 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 348 DAG size of output: 369 [2021-06-17 10:00:42,001 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 865 DAG size of output: 652 [2021-06-17 10:00:42,316 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 1014 DAG size of output: 783 [2021-06-17 10:00:45,767 WARN L205 SmtUtils]: Spent 3.44 s on a formula simplification. DAG size of input: 4640 DAG size of output: 3487 [2021-06-17 10:00:46,533 WARN L205 SmtUtils]: Spent 738.00 ms on a formula simplification. DAG size of input: 1008 DAG size of output: 1111 [2021-06-17 10:00:47,886 WARN L205 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 1790 DAG size of output: 1466 [2021-06-17 10:00:48,466 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 694 DAG size of output: 529 [2021-06-17 10:00:48,698 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 866 DAG size of output: 675 [2021-06-17 10:00:51,108 WARN L205 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 1297 DAG size of output: 1359 [2021-06-17 10:00:54,128 WARN L205 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 2779 DAG size of output: 2203 [2021-06-17 10:00:54,797 WARN L205 SmtUtils]: Spent 654.00 ms on a formula simplification. DAG size of input: 1573 DAG size of output: 1573 [2021-06-17 10:00:54,956 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 411 DAG size of output: 411 [2021-06-17 10:00:55,110 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 405 DAG size of output: 413 [2021-06-17 10:00:55,622 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 823 DAG size of output: 720 [2021-06-17 10:00:56,000 WARN L205 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 1008 DAG size of output: 903 [2021-06-17 10:00:56,141 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 397 DAG size of output: 397 [2021-06-17 10:00:56,624 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 684 DAG size of output: 499 [2021-06-17 10:00:56,860 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 876 DAG size of output: 684 [2021-06-17 10:00:57,010 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 397 DAG size of output: 416 [2021-06-17 10:00:57,155 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 393 DAG size of output: 405 [2021-06-17 10:00:57,549 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 823 DAG size of output: 658 [2021-06-17 10:00:57,873 WARN L205 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 977 DAG size of output: 806 [2021-06-17 10:00:58,683 WARN L205 SmtUtils]: Spent 801.00 ms on a formula simplification. DAG size of input: 897 DAG size of output: 964 [2021-06-17 10:01:00,872 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 2185 DAG size of output: 1778 [2021-06-17 10:01:03,342 WARN L205 SmtUtils]: Spent 2.46 s on a formula simplification. DAG size of input: 3973 DAG size of output: 3205 [2021-06-17 10:01:04,235 WARN L205 SmtUtils]: Spent 871.00 ms on a formula simplification. DAG size of input: 1711 DAG size of output: 1711 [2021-06-17 10:01:04,884 WARN L205 SmtUtils]: Spent 636.00 ms on a formula simplification. DAG size of input: 1456 DAG size of output: 1456 [2021-06-17 10:01:05,075 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 479 DAG size of output: 531 [2021-06-17 10:01:05,200 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 385 DAG size of output: 407 [2021-06-17 10:01:05,793 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 927 DAG size of output: 731 [2021-06-17 10:01:06,065 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 1105 DAG size of output: 888 [2021-06-17 10:01:06,463 WARN L205 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 1326 DAG size of output: 1102 [2021-06-17 10:01:06,861 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 951 DAG size of output: 728 [2021-06-17 10:01:06,984 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 386 DAG size of output: 404 [2021-06-17 10:01:07,103 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 382 DAG size of output: 382 [2021-06-17 10:01:07,225 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 377 DAG size of output: 391 [2021-06-17 10:01:07,603 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 789 DAG size of output: 559 [2021-06-17 10:01:07,831 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 979 DAG size of output: 778 [2021-06-17 10:01:08,147 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 1139 DAG size of output: 914 [2021-06-17 10:01:08,436 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 906 DAG size of output: 906 [2021-06-17 10:01:08,763 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 526 DAG size of output: 544 [2021-06-17 10:01:09,350 WARN L205 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 1159 DAG size of output: 1050 [2021-06-17 10:01:09,468 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 515 DAG size of output: 515 [2021-06-17 10:01:09,940 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 803 DAG size of output: 744 [2021-06-17 10:01:10,163 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 1157 DAG size of output: 1030 [2021-06-17 10:01:10,899 WARN L205 SmtUtils]: Spent 729.00 ms on a formula simplification. DAG size of input: 2108 DAG size of output: 1884 [2021-06-17 10:01:12,891 WARN L205 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 4548 DAG size of output: 3633 [2021-06-17 10:01:13,256 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 552 DAG size of output: 591 [2021-06-17 10:01:13,782 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 483 DAG size of output: 437 [2021-06-17 10:01:13,913 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 400 DAG size of output: 428 [2021-06-17 10:01:14,196 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 1033 DAG size of output: 860 [2021-06-17 10:01:14,594 WARN L205 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 1399 DAG size of output: 1153 [2021-06-17 10:01:15,208 WARN L205 SmtUtils]: Spent 607.00 ms on a formula simplification. DAG size of input: 1670 DAG size of output: 1385 [2021-06-17 10:01:18,426 WARN L205 SmtUtils]: Spent 3.20 s on a formula simplification. DAG size of input: 5680 DAG size of output: 4516 [2021-06-17 10:02:27,454 WARN L205 SmtUtils]: Spent 1.15 m on a formula simplification. DAG size of input: 35922 DAG size of output: 27696 [2021-06-17 10:02:35,009 WARN L205 SmtUtils]: Spent 7.40 s on a formula simplification. DAG size of input: 3099 DAG size of output: 3326 [2021-06-17 10:02:41,382 WARN L205 SmtUtils]: Spent 6.33 s on a formula simplification. DAG size of input: 3038 DAG size of output: 3278 [2021-06-17 10:02:43,692 WARN L205 SmtUtils]: Spent 2.28 s on a formula simplification. DAG size of input: 2927 DAG size of output: 2927 [2021-06-17 10:02:43,973 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 816 DAG size of output: 816 [2021-06-17 10:02:44,413 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 893 DAG size of output: 786 [2021-06-17 10:02:44,786 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 1004 DAG size of output: 880 [2021-06-17 10:02:44,974 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 678 DAG size of output: 678 [2021-06-17 10:02:45,282 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 598 DAG size of output: 598 [2021-06-17 10:02:46,578 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 624 DAG size of output: 583 [2021-06-17 10:02:46,738 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 672 DAG size of output: 622 [2021-06-17 10:02:47,023 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 949 DAG size of output: 843 [2021-06-17 10:02:47,645 WARN L205 SmtUtils]: Spent 616.00 ms on a formula simplification. DAG size of input: 1477 DAG size of output: 1257 [2021-06-17 10:02:48,491 WARN L205 SmtUtils]: Spent 839.00 ms on a formula simplification. DAG size of input: 1694 DAG size of output: 1419 [2021-06-17 10:02:49,913 WARN L205 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 2520 DAG size of output: 1973 [2021-06-17 10:02:50,600 WARN L205 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 778 DAG size of output: 797 [2021-06-17 10:02:50,820 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 772 DAG size of output: 772 [2021-06-17 10:02:50,993 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 534 DAG size of output: 534 [2021-06-17 10:02:51,426 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 589 DAG size of output: 549 [2021-06-17 10:02:51,743 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 949 DAG size of output: 801 [2021-06-17 10:02:52,353 WARN L205 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 1157 DAG size of output: 961 [2021-06-17 10:02:52,977 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 661 DAG size of output: 604 [2021-06-17 10:02:53,166 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 741 DAG size of output: 678 [2021-06-17 10:02:54,016 WARN L205 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 1272 DAG size of output: 1180 [2021-06-17 10:02:55,280 WARN L205 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 2719 DAG size of output: 2148 [2021-06-17 10:02:57,085 WARN L205 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 2969 DAG size of output: 2346 [2021-06-17 10:02:58,380 WARN L205 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 2179 DAG size of output: 2179 [2021-06-17 10:02:58,786 WARN L205 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 646 DAG size of output: 686 [2021-06-17 10:02:59,118 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 589 DAG size of output: 591 [2021-06-17 10:02:59,982 WARN L205 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 1253 DAG size of output: 997 [2021-06-17 10:03:00,801 WARN L205 SmtUtils]: Spent 813.00 ms on a formula simplification. DAG size of input: 1480 DAG size of output: 1210 [2021-06-17 10:03:01,091 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 550 DAG size of output: 550 [2021-06-17 10:03:01,353 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 544 DAG size of output: 600 [2021-06-17 10:03:01,801 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 661 DAG size of output: 532 [2021-06-17 10:03:01,981 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 835 DAG size of output: 671 [2021-06-17 10:03:02,264 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 930 DAG size of output: 747 [2021-06-17 10:03:02,712 WARN L205 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 1143 DAG size of output: 955 [2021-06-17 10:03:03,421 WARN L205 SmtUtils]: Spent 702.00 ms on a formula simplification. DAG size of input: 1387 DAG size of output: 1157 [2021-06-17 10:03:04,179 WARN L205 SmtUtils]: Spent 747.00 ms on a formula simplification. DAG size of input: 1550 DAG size of output: 1550 [2021-06-17 10:03:04,920 WARN L205 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 1130 DAG size of output: 896 [2021-06-17 10:03:05,434 WARN L205 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 1344 DAG size of output: 1344 [2021-06-17 10:03:05,775 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 1108 DAG size of output: 1108 [2021-06-17 10:03:05,881 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 577 DAG size of output: 577 [2021-06-17 10:03:06,013 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 344 DAG size of output: 430 [2021-06-17 10:03:06,380 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 580 DAG size of output: 514 [2021-06-17 10:03:06,872 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 1007 DAG size of output: 827 [2021-06-17 10:03:07,048 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 391 DAG size of output: 392 [2021-06-17 10:03:07,202 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 384 DAG size of output: 384 [2021-06-17 10:03:07,821 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 1127 DAG size of output: 957 [2021-06-17 10:03:08,209 WARN L205 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 1361 DAG size of output: 1178 [2021-06-17 10:03:08,388 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 420 DAG size of output: 445 [2021-06-17 10:03:09,145 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 684 DAG size of output: 630 [2021-06-17 10:03:09,266 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 822 DAG size of output: 768 [2021-06-17 10:03:09,568 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 1393 DAG size of output: 1196 [2021-06-17 10:03:10,078 WARN L205 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 1535 DAG size of output: 1332 [2021-06-17 10:03:11,446 WARN L205 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 3266 DAG size of output: 2771 [2021-06-17 10:03:11,673 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 423 DAG size of output: 424 [2021-06-17 10:03:12,097 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 616 DAG size of output: 483 [2021-06-17 10:03:12,388 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 814 DAG size of output: 655 [2021-06-17 10:03:12,876 WARN L205 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 992 DAG size of output: 809 [2021-06-17 10:03:15,194 WARN L205 SmtUtils]: Spent 2.31 s on a formula simplification. DAG size of input: 3999 DAG size of output: 3314 [2021-06-17 10:03:18,635 WARN L205 SmtUtils]: Spent 3.42 s on a formula simplification. DAG size of input: 4872 DAG size of output: 3881 [2021-06-17 10:03:24,654 WARN L205 SmtUtils]: Spent 5.99 s on a formula simplification. DAG size of input: 6745 DAG size of output: 5333 [2021-06-17 10:03:35,623 WARN L205 SmtUtils]: Spent 10.93 s on a formula simplification. DAG size of input: 10210 DAG size of output: 8063 [2021-06-17 10:03:51,664 WARN L205 SmtUtils]: Spent 15.98 s on a formula simplification. DAG size of input: 11687 DAG size of output: 9421 [2021-06-17 10:04:13,839 WARN L205 SmtUtils]: Spent 22.11 s on a formula simplification. DAG size of input: 12994 DAG size of output: 10563 [2021-06-17 10:05:55,439 WARN L205 SmtUtils]: Spent 1.69 m on a formula simplification. DAG size of input: 45784 DAG size of output: 35732 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown