/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Random7777.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 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-07 03:11:05,855 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-07 03:11:05,857 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-07 03:11:05,895 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-07 03:11:05,895 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-07 03:11:05,899 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-07 03:11:05,901 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-07 03:11:05,906 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-07 03:11:05,908 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-07 03:11:05,913 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-07 03:11:05,913 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-07 03:11:05,915 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-07 03:11:05,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-07 03:11:05,917 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-07 03:11:05,918 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-07 03:11:05,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-07 03:11:05,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-07 03:11:05,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-07 03:11:05,924 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-07 03:11:05,930 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-07 03:11:05,931 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-07 03:11:05,932 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-07 03:11:05,933 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-07 03:11:05,935 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-07 03:11:05,941 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-07 03:11:05,941 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-07 03:11:05,941 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-07 03:11:05,943 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-07 03:11:05,943 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-07 03:11:05,944 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-07 03:11:05,944 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-07 03:11:05,944 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-07 03:11:05,946 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-07 03:11:05,946 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-07 03:11:05,947 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-07 03:11:05,947 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-07 03:11:05,948 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-07 03:11:05,948 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-07 03:11:05,948 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-07 03:11:05,949 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-07 03:11:05,949 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-07 03:11:05,950 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Random7777.epf [2021-06-07 03:11:05,983 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-07 03:11:05,984 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-07 03:11:05,984 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-07 03:11:05,984 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-07 03:11:05,987 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-07 03:11:05,987 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-07 03:11:05,987 INFO L138 SettingsManager]: * Use SBE=true [2021-06-07 03:11:05,987 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-07 03:11:05,988 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-07 03:11:05,988 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-07 03:11:05,988 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-07 03:11:05,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-07 03:11:05,989 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-07 03:11:05,989 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-07 03:11:05,989 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-07 03:11:05,989 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-07 03:11:05,989 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-07 03:11:05,989 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-07 03:11:05,990 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-07 03:11:05,990 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-07 03:11:05,990 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-07 03:11:05,990 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-07 03:11:05,990 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-07 03:11:05,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-07 03:11:05,991 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-07 03:11:05,991 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-07 03:11:05,991 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-07 03:11:05,991 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-07 03:11:05,991 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-07 03:11:05,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-07 03:11:05,991 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-07 03:11:05,992 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-07 03:11:05,992 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-07 03:11:05,992 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-07 03:11:05,992 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-07 03:11:05,992 INFO L138 SettingsManager]: * Random seed used by POR DFS order=7777 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-07 03:11:06,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-07 03:11:06,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-07 03:11:06,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-07 03:11:06,368 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-07 03:11:06,369 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-07 03:11:06,370 INFO L432 ainManager$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 [2021-06-07 03:11:06,370 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' [2021-06-07 03:11:06,410 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-07 03:11:06,412 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-07 03:11:06,413 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-07 03:11:06,413 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-07 03:11:06,414 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-07 03:11:06,427 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 07.06 03:11:06" (1/1) ... [2021-06-07 03:11:06,437 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 07.06 03:11:06" (1/1) ... [2021-06-07 03:11:06,445 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-07 03:11:06,446 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-07 03:11:06,446 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-07 03:11:06,447 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-07 03:11:06,454 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 07.06 03:11:06" (1/1) ... [2021-06-07 03:11:06,455 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 07.06 03:11:06" (1/1) ... [2021-06-07 03:11:06,458 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 07.06 03:11:06" (1/1) ... [2021-06-07 03:11:06,458 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 07.06 03:11:06" (1/1) ... [2021-06-07 03:11:06,466 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 07.06 03:11:06" (1/1) ... [2021-06-07 03:11:06,471 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 07.06 03:11:06" (1/1) ... [2021-06-07 03:11:06,472 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 07.06 03:11:06" (1/1) ... [2021-06-07 03:11:06,479 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-07 03:11:06,480 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-07 03:11:06,480 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-07 03:11:06,480 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-07 03:11:06,482 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 07.06 03:11:06" (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 [2021-06-07 03:11:06,563 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-07 03:11:06,563 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-07 03:11:06,563 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-07 03:11:06,563 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-07 03:11:06,564 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-07 03:11:06,564 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-07 03:11:06,564 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-07 03:11:06,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-07 03:11:06,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-07 03:11:06,565 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-07 03:11:06,565 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-07 03:11:06,565 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-07 03:11:06,566 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-06-07 03:11:06,566 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-06-07 03:11:06,566 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-06-07 03:11:06,566 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2021-06-07 03:11:06,566 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-06-07 03:11:06,566 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-06-07 03:11:06,567 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2021-06-07 03:11:06,568 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2021-06-07 03:11:06,568 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2021-06-07 03:11:06,569 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-07 03:11:06,843 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-07 03:11:06,843 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-07 03:11:06,844 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2021-06-07 03:11:06,844 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread3EXIT is neither atomic block end nor error location. [2021-06-07 03:11:06,844 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread5EXIT is neither atomic block end nor error location. [2021-06-07 03:11:06,845 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread6EXIT is neither atomic block end nor error location. [2021-06-07 03:11:06,846 INFO L202 PluginConnector]: Adding new model parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.06 03:11:06 BoogieIcfgContainer [2021-06-07 03:11:06,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-07 03:11:06,847 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-07 03:11:06,868 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-07 03:11:06,871 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-07 03:11:06,871 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 07.06 03:11:06" (1/2) ... [2021-06-07 03:11:06,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@136c5954 and model type parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.06 03:11:06, skipping insertion in model container [2021-06-07 03:11:06,872 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 07.06 03:11:06" (2/2) ... [2021-06-07 03:11:06,873 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-sum-1-dsl.wvr.bpl [2021-06-07 03:11:06,877 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-07 03:11:06,877 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-07 03:11:06,877 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-07 03:11:06,878 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-07 03:11:06,998 INFO L149 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2021-06-07 03:11:07,016 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 [2021-06-07 03:11:07,065 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-07 03:11:07,065 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-07 03:11:07,065 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-07 03:11:07,065 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-07 03:11:07,065 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-07 03:11:07,066 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-07 03:11:07,066 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-07 03:11:07,066 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == thread4Thread1of1ForFork1======== [2021-06-07 03:11:07,322 INFO L301 ceAbstractionStarter]: Result for error location thread4Thread1of1ForFork1 was SAFE (1/5) [2021-06-07 03:11:07,324 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) [2021-06-07 03:11:07,350 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-07 03:11:07,351 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-07 03:11:07,351 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-07 03:11:07,351 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-07 03:11:07,351 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-07 03:11:07,351 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-07 03:11:07,351 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-07 03:11:07,351 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == thread1======== Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-07 03:11:07,478 INFO L301 ceAbstractionStarter]: Result for error location thread1 was SAFE (2/5) [2021-06-07 03:11:07,478 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) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-07 03:11:07,484 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-07 03:11:07,484 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-07 03:11:07,484 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-07 03:11:07,484 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-07 03:11:07,484 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-07 03:11:07,484 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-07 03:11:07,485 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-07 03:11:07,485 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == thread4======== [2021-06-07 03:11:07,617 INFO L301 ceAbstractionStarter]: Result for error location thread4 was SAFE (3/5) [2021-06-07 03:11:07,618 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) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-07 03:11:07,628 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-07 03:11:07,628 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-07 03:11:07,629 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-07 03:11:07,629 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-07 03:11:07,629 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-07 03:11:07,629 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-07 03:11:07,629 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-07 03:11:07,629 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == thread1Thread1of1ForFork0======== [2021-06-07 03:11:07,755 INFO L301 ceAbstractionStarter]: Result for error location thread1Thread1of1ForFork0 was SAFE (4/5) [2021-06-07 03:11:07,756 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) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-07 03:11:07,762 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-07 03:11:07,762 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-07 03:11:07,762 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-07 03:11:07,762 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-07 03:11:07,762 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-07 03:11:07,762 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-07 03:11:07,762 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-07 03:11:07,763 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-07 03:11:07,768 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:11:07,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:11:07,772 INFO L82 PathProgramCache]: Analyzing trace with hash -1741761529, now seen corresponding path program 1 times [2021-06-07 03:11:07,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:11:07,782 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613587481] [2021-06-07 03:11:07,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:11:07,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:11:07,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:07,973 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:11:07,973 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613587481] [2021-06-07 03:11:07,974 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613587481] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 03:11:07,974 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-07 03:11:07,974 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-07 03:11:07,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351678905] [2021-06-07 03:11:07,979 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-07 03:11:07,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:11:07,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-07 03:11:07,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-07 03:11:07,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:07,991 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:11:07,992 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) [2021-06-07 03:11:07,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:08,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:08,016 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-07 03:11:08,017 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:11:08,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:11:08,017 INFO L82 PathProgramCache]: Analyzing trace with hash -739771712, now seen corresponding path program 1 times [2021-06-07 03:11:08,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:11:08,017 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031344872] [2021-06-07 03:11:08,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:11:08,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:11:08,042 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:08,043 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:11:08,043 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031344872] [2021-06-07 03:11:08,043 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031344872] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 03:11:08,043 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-07 03:11:08,043 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-07 03:11:08,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298951475] [2021-06-07 03:11:08,044 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-07 03:11:08,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:11:08,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-07 03:11:08,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-07 03:11:08,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:08,045 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:11:08,046 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) [2021-06-07 03:11:08,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:08,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:08,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:08,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:08,086 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-07 03:11:08,086 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:11:08,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:11:08,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1022857892, now seen corresponding path program 2 times [2021-06-07 03:11:08,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:11:08,087 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140551375] [2021-06-07 03:11:08,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:11:08,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:11:08,125 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:08,126 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:11:08,126 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140551375] [2021-06-07 03:11:08,126 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140551375] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 03:11:08,126 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-07 03:11:08,126 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-07 03:11:08,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089866813] [2021-06-07 03:11:08,127 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-07 03:11:08,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:11:08,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-07 03:11:08,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-07 03:11:08,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:08,128 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:11:08,128 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) [2021-06-07 03:11:08,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:08,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:08,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:08,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:08,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:08,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:11:08,191 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-07 03:11:08,191 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:11:08,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:11:08,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1149145089, now seen corresponding path program 1 times [2021-06-07 03:11:08,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:11:08,192 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254125126] [2021-06-07 03:11:08,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:11:08,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:11:08,213 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:08,213 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:11:08,213 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254125126] [2021-06-07 03:11:08,214 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254125126] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 03:11:08,214 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-07 03:11:08,214 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-07 03:11:08,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963483174] [2021-06-07 03:11:08,214 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-07 03:11:08,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:11:08,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-07 03:11:08,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-07 03:11:08,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:08,215 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:11:08,215 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) [2021-06-07 03:11:08,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:08,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:08,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:11:08,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:08,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:08,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:08,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 03:11:08,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:08,328 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-07 03:11:08,328 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:11:08,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:11:08,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1322409665, now seen corresponding path program 1 times [2021-06-07 03:11:08,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:11:08,329 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802593161] [2021-06-07 03:11:08,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:11:08,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:11:08,369 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:08,369 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:11:08,370 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802593161] [2021-06-07 03:11:08,370 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802593161] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:11:08,370 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698429067] [2021-06-07 03:11:08,370 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 [2021-06-07 03:11:08,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:11:08,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-07 03:11:08,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:11:08,603 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:08,603 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [698429067] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:11:08,604 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:11:08,604 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-06-07 03:11:08,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634934286] [2021-06-07 03:11:08,604 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-07 03:11:08,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:11:08,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-07 03:11:08,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-07 03:11:08,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:08,605 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:11:08,605 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 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) [2021-06-07 03:11:08,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:08,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:08,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 03:11:08,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:08,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:08,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:08,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:08,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 03:11:08,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:08,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:11:08,914 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:11:08,914 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:11:08,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:11:08,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1711264097, now seen corresponding path program 1 times [2021-06-07 03:11:08,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:11:08,915 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522680615] [2021-06-07 03:11:08,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:11:08,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:11:09,087 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:09,088 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:11:09,088 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522680615] [2021-06-07 03:11:09,088 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522680615] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:11:09,088 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [523810469] [2021-06-07 03:11:09,088 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 [2021-06-07 03:11:09,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:11:09,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 21 conjunts are in the unsatisfiable core [2021-06-07 03:11:09,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:11:09,269 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 03:11:09,273 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 11 treesize of output 7 [2021-06-07 03:11:09,275 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:11:09,282 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:11:09,285 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:11:09,285 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:23, output treesize:10 [2021-06-07 03:11:09,332 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:09,333 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [523810469] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:11:09,333 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:11:09,333 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 13 [2021-06-07 03:11:09,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874918499] [2021-06-07 03:11:09,333 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-07 03:11:09,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:11:09,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-07 03:11:09,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-06-07 03:11:09,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:09,335 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:11:09,335 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 03:11:09,335 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:09,335 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:09,335 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 03:11:09,335 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:09,335 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:11:09,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:09,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:09,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:09,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 03:11:09,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:09,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:11:09,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:11:09,796 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:11:09,797 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:11:09,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:11:09,797 INFO L82 PathProgramCache]: Analyzing trace with hash -835606592, now seen corresponding path program 2 times [2021-06-07 03:11:09,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:11:09,798 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015258023] [2021-06-07 03:11:09,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:11:09,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:11:09,849 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:09,849 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:11:09,849 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015258023] [2021-06-07 03:11:09,850 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015258023] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:11:09,850 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114530620] [2021-06-07 03:11:09,850 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 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 [2021-06-07 03:11:09,909 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-07 03:11:09,909 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:11:09,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 6 conjunts are in the unsatisfiable core [2021-06-07 03:11:09,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:11:10,031 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:10,031 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [114530620] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:11:10,031 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:11:10,032 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-06-07 03:11:10,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264903009] [2021-06-07 03:11:10,032 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-07 03:11:10,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:11:10,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-07 03:11:10,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-06-07 03:11:10,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:10,035 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:11:10,035 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 11 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) [2021-06-07 03:11:10,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:10,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:10,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 03:11:10,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:10,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:11:10,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:11:10,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:10,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:10,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:10,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 03:11:10,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:10,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:11:10,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:11:10,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-07 03:11:10,492 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-06-07 03:11:10,492 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:11:10,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:11:10,493 INFO L82 PathProgramCache]: Analyzing trace with hash -624157313, now seen corresponding path program 1 times [2021-06-07 03:11:10,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:11:10,493 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905704095] [2021-06-07 03:11:10,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:11:10,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:11:10,825 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:10,825 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:11:10,825 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905704095] [2021-06-07 03:11:10,825 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905704095] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:11:10,826 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158860381] [2021-06-07 03:11:10,826 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 [2021-06-07 03:11:10,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:11:10,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 33 conjunts are in the unsatisfiable core [2021-06-07 03:11:10,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:11:11,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:11:11,142 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 03:11:11,142 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 03:11:11,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 12 [2021-06-07 03:11:11,145 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:11:11,153 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:11:11,156 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:11:11,156 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:34, output treesize:12 [2021-06-07 03:11:11,219 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:11,219 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1158860381] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:11:11,220 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:11:11,220 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12] total 22 [2021-06-07 03:11:11,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005462305] [2021-06-07 03:11:11,220 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-06-07 03:11:11,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:11:11,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-06-07 03:11:11,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2021-06-07 03:11:11,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:11,221 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:11:11,221 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.227272727272727) internal successors, (49), 22 states have internal predecessors, (49), 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) [2021-06-07 03:11:11,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:11,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:11,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 03:11:11,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:11,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:11:11,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:11:11,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-07 03:11:11,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:11,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:11,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:11,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 03:11:11,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:11,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:11:11,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:11:11,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-07 03:11:11,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-07 03:11:12,056 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:11:12,056 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:11:12,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:11:12,057 INFO L82 PathProgramCache]: Analyzing trace with hash 963255840, now seen corresponding path program 2 times [2021-06-07 03:11:12,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:11:12,057 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343532937] [2021-06-07 03:11:12,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:11:12,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:11:12,118 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:12,118 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:11:12,118 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343532937] [2021-06-07 03:11:12,118 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343532937] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:11:12,118 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140693950] [2021-06-07 03:11:12,118 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 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 [2021-06-07 03:11:12,175 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-07 03:11:12,175 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:11:12,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-07 03:11:12,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:11:12,324 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:12,324 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140693950] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:11:12,325 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:11:12,325 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2021-06-07 03:11:12,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708873704] [2021-06-07 03:11:12,325 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-07 03:11:12,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:11:12,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-07 03:11:12,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2021-06-07 03:11:12,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:12,326 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:11:12,326 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 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) [2021-06-07 03:11:12,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:12,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:12,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 03:11:12,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:12,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:11:12,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:11:12,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-07 03:11:12,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-07 03:11:12,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:12,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:12,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:12,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 03:11:12,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:12,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:11:12,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:11:12,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-07 03:11:12,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-07 03:11:12,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-07 03:11:12,887 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:11:12,888 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:11:12,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:11:12,888 INFO L82 PathProgramCache]: Analyzing trace with hash 1505786847, now seen corresponding path program 3 times [2021-06-07 03:11:12,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:11:12,889 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818913881] [2021-06-07 03:11:12,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:11:12,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:11:13,241 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:13,242 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:11:13,242 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818913881] [2021-06-07 03:11:13,242 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818913881] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:11:13,242 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [816198493] [2021-06-07 03:11:13,242 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 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 [2021-06-07 03:11:13,319 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-06-07 03:11:13,319 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:11:13,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 45 conjunts are in the unsatisfiable core [2021-06-07 03:11:13,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:11:13,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:11:13,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:11:13,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:11:13,937 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:11:13,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 32 treesize of output 82 [2021-06-07 03:11:13,959 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:11:14,099 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 43 [2021-06-07 03:11:14,100 INFO L628 ElimStorePlain]: treesize reduction 47, result has 63.6 percent of original size [2021-06-07 03:11:14,133 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:11:14,133 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:45, output treesize:164 [2021-06-07 03:11:14,290 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2021-06-07 03:11:14,495 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:14,495 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [816198493] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:11:14,495 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:11:14,496 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 33 [2021-06-07 03:11:14,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993526695] [2021-06-07 03:11:14,496 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-06-07 03:11:14,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:11:14,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-06-07 03:11:14,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=960, Unknown=0, NotChecked=0, Total=1056 [2021-06-07 03:11:14,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:14,497 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:11:14,497 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 1.8484848484848484) internal successors, (61), 33 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 03:11:14,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:14,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:14,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 03:11:14,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:14,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:11:14,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:11:14,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-07 03:11:14,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-07 03:11:14,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-07 03:11:14,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:15,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:15,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:15,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 03:11:15,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:15,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:11:15,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:11:15,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-07 03:11:15,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-07 03:11:15,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-07 03:11:15,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-07 03:11:15,993 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-06-07 03:11:15,993 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:11:15,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:11:15,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1111180288, now seen corresponding path program 4 times [2021-06-07 03:11:15,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:11:15,994 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784775131] [2021-06-07 03:11:15,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:11:16,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:11:16,061 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:16,061 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:11:16,061 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784775131] [2021-06-07 03:11:16,061 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784775131] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:11:16,061 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193776675] [2021-06-07 03:11:16,061 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 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 [2021-06-07 03:11:16,109 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-07 03:11:16,109 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:11:16,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-07 03:11:16,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:11:16,285 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:16,285 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193776675] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:11:16,285 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:11:16,285 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2021-06-07 03:11:16,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353863045] [2021-06-07 03:11:16,286 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-07 03:11:16,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:11:16,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-07 03:11:16,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2021-06-07 03:11:16,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:16,286 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:11:16,287 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 3.210526315789474) internal successors, (61), 19 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 03:11:16,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:16,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:16,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 03:11:16,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:16,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:11:16,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:11:16,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-07 03:11:16,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-07 03:11:16,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-07 03:11:16,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-07 03:11:16,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:16,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:16,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:16,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 03:11:16,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:16,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:11:16,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:11:16,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-07 03:11:16,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-07 03:11:16,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-07 03:11:16,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-07 03:11:16,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-07 03:11:16,740 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-06-07 03:11:16,741 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:11:16,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:11:16,741 INFO L82 PathProgramCache]: Analyzing trace with hash 1927260607, now seen corresponding path program 5 times [2021-06-07 03:11:16,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:11:16,741 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340406942] [2021-06-07 03:11:16,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:11:16,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:11:17,141 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:17,142 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:11:17,142 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340406942] [2021-06-07 03:11:17,142 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340406942] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:11:17,142 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863075732] [2021-06-07 03:11:17,142 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 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 [2021-06-07 03:11:17,191 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-06-07 03:11:17,192 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:11:17,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 57 conjunts are in the unsatisfiable core [2021-06-07 03:11:17,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:11:17,766 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 35 treesize of output 19 [2021-06-07 03:11:17,767 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:11:17,769 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:11:17,769 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:11:17,769 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:10 [2021-06-07 03:11:17,858 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:17,858 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863075732] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:11:17,859 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:11:17,859 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 20] total 38 [2021-06-07 03:11:17,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340474150] [2021-06-07 03:11:17,860 INFO L462 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-06-07 03:11:17,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:11:17,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-06-07 03:11:17,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=1294, Unknown=0, NotChecked=0, Total=1406 [2021-06-07 03:11:17,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:17,861 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:11:17,861 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 38 states, 38 states have (on average 1.736842105263158) internal successors, (66), 38 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 03:11:17,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:17,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:17,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 03:11:17,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:17,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:11:17,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:11:17,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-07 03:11:17,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-07 03:11:17,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-07 03:11:17,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-07 03:11:17,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-07 03:11:17,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:20,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:20,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:20,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 03:11:20,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:20,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:11:20,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:11:20,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-07 03:11:20,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-07 03:11:20,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-07 03:11:20,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-07 03:11:20,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-07 03:11:20,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-07 03:11:20,764 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-06-07 03:11:20,764 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:11:20,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:11:20,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1836615328, now seen corresponding path program 6 times [2021-06-07 03:11:20,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:11:20,765 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907368909] [2021-06-07 03:11:20,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:11:20,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:11:20,856 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 17 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:20,856 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:11:20,856 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907368909] [2021-06-07 03:11:20,856 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907368909] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:11:20,856 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457261491] [2021-06-07 03:11:20,856 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 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 [2021-06-07 03:11:20,900 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-06-07 03:11:20,901 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:11:20,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-07 03:11:20,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:11:21,118 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:21,118 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [457261491] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:11:21,118 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:11:21,118 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2021-06-07 03:11:21,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640296978] [2021-06-07 03:11:21,120 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-06-07 03:11:21,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:11:21,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-06-07 03:11:21,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2021-06-07 03:11:21,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:21,121 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:11:21,121 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.130434782608696) internal successors, (72), 23 states have internal predecessors, (72), 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) [2021-06-07 03:11:21,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:21,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:21,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 03:11:21,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:21,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:11:21,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:11:21,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-07 03:11:21,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-07 03:11:21,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-07 03:11:21,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-07 03:11:21,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-07 03:11:21,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-07 03:11:21,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:21,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:21,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:21,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 03:11:21,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:21,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:11:21,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:11:21,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-07 03:11:21,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-07 03:11:21,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-07 03:11:21,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-07 03:11:21,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-07 03:11:21,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-07 03:11:21,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-07 03:11:22,051 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:11:22,052 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:11:22,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:11:22,052 INFO L82 PathProgramCache]: Analyzing trace with hash -520878305, now seen corresponding path program 7 times [2021-06-07 03:11:22,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:11:22,052 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062936901] [2021-06-07 03:11:22,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:11:22,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:11:22,790 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:22,790 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:11:22,790 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062936901] [2021-06-07 03:11:22,790 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062936901] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:11:22,790 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066103917] [2021-06-07 03:11:22,790 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 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 [2021-06-07 03:11:22,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:11:22,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 69 conjunts are in the unsatisfiable core [2021-06-07 03:11:22,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:11:23,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 21 [2021-06-07 03:11:23,572 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:11:23,574 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:11:23,574 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:11:23,574 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:41, output treesize:10 [2021-06-07 03:11:23,653 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:23,653 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1066103917] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:11:23,653 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:11:23,653 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 24] total 46 [2021-06-07 03:11:23,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254475155] [2021-06-07 03:11:23,654 INFO L462 AbstractCegarLoop]: Interpolant automaton has 46 states [2021-06-07 03:11:23,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:11:23,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-06-07 03:11:23,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=1857, Unknown=0, NotChecked=0, Total=2070 [2021-06-07 03:11:23,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:23,655 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:11:23,655 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 46 states, 46 states have (on average 1.608695652173913) internal successors, (74), 46 states have internal predecessors, (74), 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) [2021-06-07 03:11:23,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:23,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:23,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 03:11:23,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:23,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:11:23,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:11:23,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-07 03:11:23,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-07 03:11:23,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-07 03:11:23,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-07 03:11:23,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-07 03:11:23,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-07 03:11:23,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-07 03:11:23,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:26,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:26,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:26,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 03:11:26,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:26,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:11:26,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:11:26,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-07 03:11:26,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-07 03:11:26,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-07 03:11:26,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-07 03:11:26,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-07 03:11:26,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-07 03:11:26,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-07 03:11:26,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-06-07 03:11:27,082 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-06-07 03:11:27,083 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:11:27,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:11:27,083 INFO L82 PathProgramCache]: Analyzing trace with hash 999289855, now seen corresponding path program 8 times [2021-06-07 03:11:27,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:11:27,083 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903912259] [2021-06-07 03:11:27,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:11:27,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:11:27,770 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 19 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:27,771 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:11:27,771 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903912259] [2021-06-07 03:11:27,771 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903912259] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:11:27,771 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1445926959] [2021-06-07 03:11:27,771 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 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 [2021-06-07 03:11:27,822 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-07 03:11:27,822 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:11:27,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 82 conjunts are in the unsatisfiable core [2021-06-07 03:11:27,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:11:28,753 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:11:28,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 71 [2021-06-07 03:11:28,760 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:11:28,768 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:11:28,769 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:11:28,769 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:53, output treesize:26 [2021-06-07 03:11:28,920 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:28,920 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1445926959] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:11:28,920 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:11:28,920 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 29] total 56 [2021-06-07 03:11:28,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824937352] [2021-06-07 03:11:28,921 INFO L462 AbstractCegarLoop]: Interpolant automaton has 56 states [2021-06-07 03:11:28,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:11:28,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2021-06-07 03:11:28,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=2674, Unknown=0, NotChecked=0, Total=3080 [2021-06-07 03:11:28,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:28,928 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:11:28,929 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 56 states, 56 states have (on average 1.5178571428571428) internal successors, (85), 56 states have internal predecessors, (85), 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) [2021-06-07 03:11:28,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:28,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:28,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 03:11:28,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:28,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:11:28,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:11:28,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-07 03:11:28,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-07 03:11:28,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-07 03:11:28,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-07 03:11:28,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-07 03:11:28,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-07 03:11:28,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-07 03:11:28,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-06-07 03:11:28,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:33,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:33,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:33,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 03:11:33,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:33,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:11:33,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:11:33,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-07 03:11:33,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-07 03:11:33,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-07 03:11:33,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-07 03:11:33,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-07 03:11:33,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-07 03:11:33,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-07 03:11:33,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-06-07 03:11:33,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-06-07 03:11:33,343 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-06-07 03:11:33,343 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:11:33,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:11:33,344 INFO L82 PathProgramCache]: Analyzing trace with hash -183644065, now seen corresponding path program 9 times [2021-06-07 03:11:33,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:11:33,344 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942454316] [2021-06-07 03:11:33,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:11:33,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:11:34,261 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 17 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:34,261 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:11:34,261 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942454316] [2021-06-07 03:11:34,262 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942454316] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:11:34,262 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601646690] [2021-06-07 03:11:34,262 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 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 [2021-06-07 03:11:34,350 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-06-07 03:11:34,350 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:11:34,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 93 conjunts are in the unsatisfiable core [2021-06-07 03:11:34,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:11:35,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:11:35,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:11:35,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:11:35,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:11:35,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:11:35,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:11:35,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:11:35,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:11:35,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:11:35,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:11:35,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:11:35,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:11:35,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:11:35,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:11:35,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:11:35,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:11:35,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:11:35,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:11:36,143 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-06-07 03:11:36,143 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:11:36,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 21 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 34 case distinctions, treesize of input 65 treesize of output 363 [2021-06-07 03:11:36,443 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 579 DAG size of output: 402 [2021-06-07 03:11:36,632 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 593 DAG size of output: 417 [2021-06-07 03:11:37,818 WARN L205 SmtUtils]: Spent 955.00 ms on a formula simplification. DAG size of input: 1744 DAG size of output: 1101 [2021-06-07 03:11:38,863 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 1767 DAG size of output: 1121 [2021-06-07 03:11:40,412 WARN L205 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 1049 DAG size of output: 1092 [2021-06-07 03:11:41,041 WARN L205 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 1043 DAG size of output: 1043 [2021-06-07 03:11:41,393 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 866 DAG size of output: 866 [2021-06-07 03:11:41,920 WARN L205 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 638 DAG size of output: 666 [2021-06-07 03:11:42,419 WARN L205 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 635 DAG size of output: 697 [2021-06-07 03:11:42,808 WARN L205 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 631 DAG size of output: 661 [2021-06-07 03:11:43,203 WARN L205 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 627 DAG size of output: 701 [2021-06-07 03:11:43,759 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 345 DAG size of output: 377 [2021-06-07 03:11:44,415 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 763 DAG size of output: 591 [2021-06-07 03:11:45,052 WARN L205 SmtUtils]: Spent 632.00 ms on a formula simplification. DAG size of input: 1715 DAG size of output: 1276 [2021-06-07 03:11:45,873 WARN L205 SmtUtils]: Spent 812.00 ms on a formula simplification. DAG size of input: 2103 DAG size of output: 1602 [2021-06-07 03:11:47,078 WARN L205 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 2468 DAG size of output: 1902 [2021-06-07 03:11:48,791 WARN L205 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 2845 DAG size of output: 2255 [2021-06-07 03:11:49,115 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 486 DAG size of output: 541 [2021-06-07 03:11:49,222 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 461 DAG size of output: 461 [2021-06-07 03:11:49,454 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 444 DAG size of output: 359 [2021-06-07 03:11:49,915 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 574 DAG size of output: 469 [2021-06-07 03:11:50,092 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 691 DAG size of output: 586 [2021-06-07 03:11:50,711 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 883 DAG size of output: 775 [2021-06-07 03:11:51,058 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 1302 DAG size of output: 1122 [2021-06-07 03:11:51,587 WARN L205 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 1542 DAG size of output: 1302 [2021-06-07 03:11:52,017 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 450 DAG size of output: 365 [2021-06-07 03:11:52,239 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 505 DAG size of output: 415 [2021-06-07 03:11:52,537 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 601 DAG size of output: 478 [2021-06-07 03:11:52,798 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 674 DAG size of output: 542 [2021-06-07 03:11:53,690 WARN L205 SmtUtils]: Spent 887.00 ms on a formula simplification. DAG size of input: 1935 DAG size of output: 1585 [2021-06-07 03:11:54,984 WARN L205 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 2241 DAG size of output: 1805 [2021-06-07 03:11:58,300 WARN L205 SmtUtils]: Spent 3.30 s on a formula simplification. DAG size of input: 4455 DAG size of output: 3464 [2021-06-07 03:11:58,554 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 459 DAG size of output: 520 [2021-06-07 03:11:58,737 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 436 DAG size of output: 514 [2021-06-07 03:11:58,872 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 364 DAG size of output: 377 [2021-06-07 03:11:59,019 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 361 DAG size of output: 365 [2021-06-07 03:11:59,151 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 357 DAG size of output: 373 [2021-06-07 03:11:59,288 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 353 DAG size of output: 381 [2021-06-07 03:11:59,890 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 919 DAG size of output: 764 [2021-06-07 03:12:00,209 WARN L205 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 1110 DAG size of output: 917 [2021-06-07 03:12:00,680 WARN L205 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 1287 DAG size of output: 1061 [2021-06-07 03:12:01,326 WARN L205 SmtUtils]: Spent 640.00 ms on a formula simplification. DAG size of input: 1480 DAG size of output: 1225 [2021-06-07 03:12:02,196 WARN L205 SmtUtils]: Spent 862.00 ms on a formula simplification. DAG size of input: 1659 DAG size of output: 1377 [2021-06-07 03:12:03,365 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 1798 DAG size of output: 1499 [2021-06-07 03:12:08,816 WARN L205 SmtUtils]: Spent 5.44 s on a formula simplification. DAG size of input: 5498 DAG size of output: 4367 [2021-06-07 03:12:15,846 WARN L205 SmtUtils]: Spent 7.00 s on a formula simplification. DAG size of input: 6136 DAG size of output: 4900 [2021-06-07 03:12:22,878 WARN L205 SmtUtils]: Spent 7.01 s on a formula simplification. DAG size of input: 6136 DAG size of output: 4900 [2021-06-07 03:12:30,298 WARN L205 SmtUtils]: Spent 7.36 s on a formula simplification. DAG size of input: 6139 DAG size of output: 4903 [2021-06-07 03:12:37,188 WARN L205 SmtUtils]: Spent 6.86 s on a formula simplification. DAG size of input: 4569 DAG size of output: 4555 [2021-06-07 03:12:38,579 WARN L205 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 969 DAG size of output: 1064 [2021-06-07 03:12:39,949 WARN L205 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 966 DAG size of output: 1121 [2021-06-07 03:12:40,517 WARN L205 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 961 DAG size of output: 961 [2021-06-07 03:12:41,352 WARN L205 SmtUtils]: Spent 828.00 ms on a formula simplification. DAG size of input: 792 DAG size of output: 899 [2021-06-07 03:12:41,689 WARN L205 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 787 DAG size of output: 787 [2021-06-07 03:12:41,964 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 427 DAG size of output: 513 [2021-06-07 03:12:42,123 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 363 DAG size of output: 384 [2021-06-07 03:12:42,242 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 360 DAG size of output: 413 [2021-06-07 03:12:42,899 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 786 DAG size of output: 684 [2021-06-07 03:12:43,139 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 972 DAG size of output: 862 [2021-06-07 03:12:43,486 WARN L205 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 1175 DAG size of output: 1046 [2021-06-07 03:12:44,053 WARN L205 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 1416 DAG size of output: 1252 [2021-06-07 03:12:44,211 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 592 DAG size of output: 592 [2021-06-07 03:12:44,972 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 609 DAG size of output: 465 [2021-06-07 03:12:45,117 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 613 DAG size of output: 467 [2021-06-07 03:12:45,338 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 756 DAG size of output: 586 [2021-06-07 03:12:45,935 WARN L205 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 1196 DAG size of output: 921 [2021-06-07 03:12:46,070 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 320 DAG size of output: 352 [2021-06-07 03:12:46,193 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 310 [2021-06-07 03:12:46,882 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 906 DAG size of output: 848 [2021-06-07 03:12:47,163 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 1079 DAG size of output: 1006 [2021-06-07 03:12:47,561 WARN L205 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 1288 DAG size of output: 1202 [2021-06-07 03:12:48,420 WARN L205 SmtUtils]: Spent 852.00 ms on a formula simplification. DAG size of input: 2162 DAG size of output: 1808 [2021-06-07 03:12:50,142 WARN L205 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 3027 DAG size of output: 2557 [2021-06-07 03:12:52,549 WARN L205 SmtUtils]: Spent 2.39 s on a formula simplification. DAG size of input: 3286 DAG size of output: 2765 [2021-06-07 03:12:52,775 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 419 DAG size of output: 507 [2021-06-07 03:12:53,358 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 520 DAG size of output: 464 [2021-06-07 03:12:53,857 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 556 DAG size of output: 492 [2021-06-07 03:12:54,520 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 664 DAG size of output: 533 [2021-06-07 03:12:54,726 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 940 DAG size of output: 750 [2021-06-07 03:12:55,031 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 1020 DAG size of output: 816 [2021-06-07 03:12:55,508 WARN L205 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 1380 DAG size of output: 1119 [2021-06-07 03:12:56,275 WARN L205 SmtUtils]: Spent 761.00 ms on a formula simplification. DAG size of input: 1723 DAG size of output: 1397 [2021-06-07 03:12:57,310 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 1920 DAG size of output: 1573 [2021-06-07 03:13:01,540 WARN L205 SmtUtils]: Spent 4.22 s on a formula simplification. DAG size of input: 4511 DAG size of output: 3755 [2021-06-07 03:13:07,192 WARN L205 SmtUtils]: Spent 5.63 s on a formula simplification. DAG size of input: 5022 DAG size of output: 4283 [2021-06-07 03:13:14,424 WARN L205 SmtUtils]: Spent 7.21 s on a formula simplification. DAG size of input: 5695 DAG size of output: 4848 [2021-06-07 03:13:26,320 WARN L205 SmtUtils]: Spent 11.86 s on a formula simplification. DAG size of input: 4064 DAG size of output: 4797 [2021-06-07 03:13:27,445 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 1379 DAG size of output: 1383 [2021-06-07 03:13:28,254 WARN L205 SmtUtils]: Spent 801.00 ms on a formula simplification. DAG size of input: 1273 DAG size of output: 1277 [2021-06-07 03:13:28,758 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 316 DAG size of output: 331 [2021-06-07 03:13:28,922 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 312 DAG size of output: 335 [2021-06-07 03:13:29,643 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 935 DAG size of output: 754 [2021-06-07 03:13:29,889 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 1100 DAG size of output: 925 [2021-06-07 03:13:30,248 WARN L205 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 1228 DAG size of output: 1011 [2021-06-07 03:13:30,789 WARN L205 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 1395 DAG size of output: 1167 [2021-06-07 03:13:31,392 WARN L205 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 1136 DAG size of output: 1140 [2021-06-07 03:13:31,524 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 341 DAG size of output: 357 [2021-06-07 03:13:31,654 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 337 DAG size of output: 341 [2021-06-07 03:13:31,758 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 334 DAG size of output: 375 [2021-06-07 03:13:32,005 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 811 DAG size of output: 665 [2021-06-07 03:13:32,216 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 977 DAG size of output: 848 [2021-06-07 03:13:32,547 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 1171 DAG size of output: 1024 [2021-06-07 03:13:32,967 WARN L205 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 981 DAG size of output: 985 [2021-06-07 03:13:33,092 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 320 DAG size of output: 343 [2021-06-07 03:13:33,228 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 316 DAG size of output: 349 [2021-06-07 03:13:33,987 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 764 DAG size of output: 685 [2021-06-07 03:13:34,182 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 915 DAG size of output: 800 [2021-06-07 03:13:34,462 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 1005 DAG size of output: 892 [2021-06-07 03:13:34,868 WARN L205 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 1163 DAG size of output: 1039 [2021-06-07 03:13:35,153 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 850 DAG size of output: 854 [2021-06-07 03:13:35,333 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 709 DAG size of output: 713 [2021-06-07 03:13:35,970 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 551 DAG size of output: 555 [2021-06-07 03:13:36,852 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 1246 DAG size of output: 1019 [2021-06-07 03:13:37,234 WARN L205 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 1688 DAG size of output: 1377 [2021-06-07 03:13:37,366 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 314 DAG size of output: 342 [2021-06-07 03:13:37,698 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 695 DAG size of output: 577 [2021-06-07 03:13:37,907 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 868 DAG size of output: 767 [2021-06-07 03:13:38,588 WARN L205 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 2318 DAG size of output: 1940 [2021-06-07 03:13:39,873 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 3045 DAG size of output: 2590 [2021-06-07 03:13:41,845 WARN L205 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 3912 DAG size of output: 3334 [2021-06-07 03:13:44,869 WARN L205 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 4808 DAG size of output: 4064 [2021-06-07 03:13:45,062 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 350 DAG size of output: 424 [2021-06-07 03:13:46,067 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 435 DAG size of output: 414 [2021-06-07 03:13:46,936 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 777 DAG size of output: 701 [2021-06-07 03:13:47,304 WARN L205 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 1047 DAG size of output: 943 [2021-06-07 03:13:47,906 WARN L205 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 1294 DAG size of output: 1157 [2021-06-07 03:13:48,739 WARN L205 SmtUtils]: Spent 827.00 ms on a formula simplification. DAG size of input: 1429 DAG size of output: 1279 [2021-06-07 03:13:53,303 WARN L205 SmtUtils]: Spent 4.55 s on a formula simplification. DAG size of input: 5573 DAG size of output: 4725 [2021-06-07 03:13:54,746 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 828 DAG size of output: 794 [2021-06-07 03:13:55,016 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 1094 DAG size of output: 1041 [2021-06-07 03:13:55,519 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 717 DAG size of output: 703 [2021-06-07 03:13:55,709 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 725 DAG size of output: 711 [2021-06-07 03:13:58,352 WARN L205 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 596 DAG size of output: 626 [2021-06-07 03:13:58,500 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 590 DAG size of output: 590 [2021-06-07 03:13:58,610 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 327 DAG size of output: 370 [2021-06-07 03:13:59,152 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 855 DAG size of output: 792 [2021-06-07 03:13:59,800 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 748 DAG size of output: 614 [2021-06-07 03:14:00,088 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 1079 DAG size of output: 915 [2021-06-07 03:14:00,510 WARN L205 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 1662 DAG size of output: 1436 [2021-06-07 03:14:01,185 WARN L205 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 2077 DAG size of output: 1807 [2021-06-07 03:14:01,346 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 557 DAG size of output: 557 [2021-06-07 03:14:02,127 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 611 DAG size of output: 500 [2021-06-07 03:14:02,310 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 929 DAG size of output: 779 [2021-06-07 03:14:02,421 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 293 DAG size of output: 337 [2021-06-07 03:14:02,937 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 717 DAG size of output: 680 [2021-06-07 03:14:03,153 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 907 DAG size of output: 879 [2021-06-07 03:14:03,630 WARN L205 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 1576 DAG size of output: 1385 [2021-06-07 03:14:05,045 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 935 DAG size of output: 788 [2021-06-07 03:14:05,156 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 275 [2021-06-07 03:14:05,370 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 531 DAG size of output: 473 [2021-06-07 03:14:05,512 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 431 DAG size of output: 482 [2021-06-07 03:14:05,693 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 731 DAG size of output: 603 [2021-06-07 03:14:06,132 WARN L205 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 553 DAG size of output: 612 [2021-06-07 03:14:06,483 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 549 DAG size of output: 648 [2021-06-07 03:14:07,327 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 766 DAG size of output: 738 [2021-06-07 03:14:07,523 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 943 DAG size of output: 918 [2021-06-07 03:14:07,818 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 1094 DAG size of output: 1063 [2021-06-07 03:14:08,347 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 767 DAG size of output: 685 [2021-06-07 03:14:09,130 WARN L205 SmtUtils]: Spent 777.00 ms on a formula simplification. DAG size of input: 2086 DAG size of output: 1954 [2021-06-07 03:14:10,268 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 2389 DAG size of output: 2241 [2021-06-07 03:14:10,549 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 390 DAG size of output: 448 [2021-06-07 03:14:10,775 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 386 DAG size of output: 470 [2021-06-07 03:14:10,946 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 336 DAG size of output: 365 [2021-06-07 03:14:11,697 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 766 DAG size of output: 677 [2021-06-07 03:14:12,106 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 484 DAG size of output: 452 [2021-06-07 03:14:12,422 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 1084 DAG size of output: 928 [2021-06-07 03:14:12,888 WARN L205 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 1291 DAG size of output: 1115 [2021-06-07 03:14:13,582 WARN L205 SmtUtils]: Spent 686.00 ms on a formula simplification. DAG size of input: 1475 DAG size of output: 1274 [2021-06-07 03:14:14,523 WARN L205 SmtUtils]: Spent 934.00 ms on a formula simplification. DAG size of input: 1679 DAG size of output: 1454 [2021-06-07 03:14:39,620 WARN L205 SmtUtils]: Spent 25.06 s on a formula simplification. DAG size of input: 18857 DAG size of output: 16294 [2021-06-07 03:15:16,904 WARN L205 SmtUtils]: Spent 37.19 s on a formula simplification. DAG size of input: 22828 DAG size of output: 19683 [2021-06-07 03:15:54,595 WARN L205 SmtUtils]: Spent 37.58 s on a formula simplification. DAG size of input: 22828 DAG size of output: 19683 [2021-06-07 03:16:34,181 WARN L205 SmtUtils]: Spent 39.43 s on a formula simplification. DAG size of input: 22830 DAG size of output: 19685 [2021-06-07 03:17:53,885 WARN L205 SmtUtils]: Spent 1.33 m on a formula simplification. DAG size of input: 18753 DAG size of output: 22434 [2021-06-07 03:17:54,139 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 289 DAG size of output: 303 [2021-06-07 03:17:54,838 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 625 DAG size of output: 496 [2021-06-07 03:17:55,145 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 792 DAG size of output: 627 [2021-06-07 03:17:55,490 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 904 DAG size of output: 717 [2021-06-07 03:17:55,919 WARN L205 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 1075 DAG size of output: 884 [2021-06-07 03:17:57,285 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 757 DAG size of output: 567 [2021-06-07 03:17:57,482 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 290 DAG size of output: 318 [2021-06-07 03:17:57,647 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 287 DAG size of output: 320 [2021-06-07 03:17:58,227 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 809 DAG size of output: 734 [2021-06-07 03:17:58,704 WARN L205 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 957 DAG size of output: 885 [2021-06-07 03:17:58,875 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 289 DAG size of output: 325 [2021-06-07 03:17:59,051 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 303 [2021-06-07 03:17:59,919 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 694 DAG size of output: 468 [2021-06-07 03:18:00,168 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 788 DAG size of output: 521 [2021-06-07 03:18:00,525 WARN L205 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 997 DAG size of output: 738 [2021-06-07 03:18:00,979 WARN L205 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 1068 DAG size of output: 800 [2021-06-07 03:18:01,677 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 583 DAG size of output: 525 [2021-06-07 03:18:01,789 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 328 [2021-06-07 03:18:02,277 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 1094 DAG size of output: 818 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown