/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy BADGER --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP -s ../../../trunk/examples/settings/gemcutter/SleepMap-ConcreteSmt-VarAbsGlobalSyntactic.epf --traceabstraction.coinflip.probability.value 0 --traceabstraction.coinflip.random.seed 0 --traceabstraction.coinflip.budget.determination.mode COARSE --traceabstraction.coinflip.probability.increment 10 -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2023/min-max-sample-abs-nonatomic.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-e57bdd3-m [2022-10-10 13:39:33,533 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-10 13:39:33,534 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-10 13:39:33,559 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-10 13:39:33,560 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-10 13:39:33,560 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-10 13:39:33,561 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-10 13:39:33,562 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-10 13:39:33,563 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-10 13:39:33,564 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-10 13:39:33,564 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-10 13:39:33,565 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-10 13:39:33,565 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-10 13:39:33,566 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-10 13:39:33,566 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-10 13:39:33,567 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-10 13:39:33,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-10 13:39:33,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-10 13:39:33,569 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-10 13:39:33,570 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-10 13:39:33,571 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-10 13:39:33,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-10 13:39:33,573 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-10 13:39:33,573 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-10 13:39:33,576 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-10 13:39:33,576 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-10 13:39:33,576 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-10 13:39:33,576 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-10 13:39:33,577 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-10 13:39:33,577 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-10 13:39:33,577 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-10 13:39:33,578 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-10 13:39:33,578 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-10 13:39:33,579 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-10 13:39:33,579 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-10 13:39:33,580 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-10 13:39:33,580 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-10 13:39:33,580 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-10 13:39:33,580 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-10 13:39:33,581 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-10 13:39:33,581 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-10 13:39:33,582 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/SleepMap-ConcreteSmt-VarAbsGlobalSyntactic.epf [2022-10-10 13:39:33,600 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-10 13:39:33,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-10 13:39:33,600 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-10 13:39:33,600 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-10 13:39:33,601 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-10 13:39:33,601 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-10 13:39:33,601 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-10 13:39:33,601 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-10 13:39:33,601 INFO L138 SettingsManager]: * Use SBE=true [2022-10-10 13:39:33,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-10 13:39:33,602 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-10 13:39:33,602 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-10 13:39:33,602 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-10 13:39:33,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-10 13:39:33,602 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-10 13:39:33,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-10 13:39:33,602 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-10 13:39:33,602 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-10 13:39:33,602 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-10 13:39:33,602 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-10 13:39:33,603 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-10 13:39:33,603 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-10 13:39:33,603 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-10 13:39:33,603 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-10 13:39:33,603 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-10 13:39:33,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-10 13:39:33,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-10 13:39:33,603 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-10 13:39:33,603 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-10 13:39:33,604 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-10 13:39:33,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-10 13:39:33,604 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-10 13:39:33,604 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-10 13:39:33,604 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-10 13:39:33,604 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-10 13:39:33,604 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-10 13:39:33,604 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-10 13:39:33,604 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-10 13:39:33,604 INFO L138 SettingsManager]: * Number of independence relations to use for POR=2 [2022-10-10 13:39:33,604 INFO L138 SettingsManager]: * Independence relation used for POR in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> BADGER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Coinflip probability value -> 0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Coinflip random seed -> 0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Coinflip budget determination mode -> COARSE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Coinflip probability increment -> 10 [2022-10-10 13:39:33,855 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-10 13:39:33,880 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-10 13:39:33,882 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-10 13:39:33,883 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-10 13:39:33,885 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-10 13:39:33,886 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/min-max-sample-abs-nonatomic.bpl [2022-10-10 13:39:33,886 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/min-max-sample-abs-nonatomic.bpl' [2022-10-10 13:39:33,909 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-10 13:39:33,911 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-10-10 13:39:33,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-10 13:39:33,912 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-10 13:39:33,912 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-10 13:39:33,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-max-sample-abs-nonatomic.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 01:39:33" (1/1) ... [2022-10-10 13:39:33,927 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-max-sample-abs-nonatomic.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 01:39:33" (1/1) ... [2022-10-10 13:39:33,932 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-10-10 13:39:33,933 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-10 13:39:33,934 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-10 13:39:33,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-10 13:39:33,935 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-10 13:39:33,940 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-max-sample-abs-nonatomic.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 01:39:33" (1/1) ... [2022-10-10 13:39:33,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-max-sample-abs-nonatomic.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 01:39:33" (1/1) ... [2022-10-10 13:39:33,942 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-max-sample-abs-nonatomic.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 01:39:33" (1/1) ... [2022-10-10 13:39:33,942 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-max-sample-abs-nonatomic.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 01:39:33" (1/1) ... [2022-10-10 13:39:33,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-max-sample-abs-nonatomic.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 01:39:33" (1/1) ... [2022-10-10 13:39:33,950 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-max-sample-abs-nonatomic.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 01:39:33" (1/1) ... [2022-10-10 13:39:33,951 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-max-sample-abs-nonatomic.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 01:39:33" (1/1) ... [2022-10-10 13:39:33,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-10 13:39:33,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-10 13:39:33,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-10 13:39:33,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-10 13:39:33,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-max-sample-abs-nonatomic.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 01:39:33" (1/1) ... [2022-10-10 13:39:33,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-10 13:39:33,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-10 13:39:33,980 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-10 13:39:34,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-10 13:39:34,026 INFO L124 BoogieDeclarations]: Specification and implementation of procedure computeMax given in one single declaration [2022-10-10 13:39:34,026 INFO L130 BoogieDeclarations]: Found specification of procedure computeMax [2022-10-10 13:39:34,026 INFO L138 BoogieDeclarations]: Found implementation of procedure computeMax [2022-10-10 13:39:34,026 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-10-10 13:39:34,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-10 13:39:34,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-10 13:39:34,027 INFO L124 BoogieDeclarations]: Specification and implementation of procedure sample given in one single declaration [2022-10-10 13:39:34,027 INFO L130 BoogieDeclarations]: Found specification of procedure sample [2022-10-10 13:39:34,027 INFO L138 BoogieDeclarations]: Found implementation of procedure sample [2022-10-10 13:39:34,027 INFO L124 BoogieDeclarations]: Specification and implementation of procedure mapAbs given in one single declaration [2022-10-10 13:39:34,027 INFO L130 BoogieDeclarations]: Found specification of procedure mapAbs [2022-10-10 13:39:34,027 INFO L138 BoogieDeclarations]: Found implementation of procedure mapAbs [2022-10-10 13:39:34,028 INFO L124 BoogieDeclarations]: Specification and implementation of procedure computeMin given in one single declaration [2022-10-10 13:39:34,028 INFO L130 BoogieDeclarations]: Found specification of procedure computeMin [2022-10-10 13:39:34,028 INFO L138 BoogieDeclarations]: Found implementation of procedure computeMin [2022-10-10 13:39:34,029 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-10 13:39:34,061 INFO L234 CfgBuilder]: Building ICFG [2022-10-10 13:39:34,062 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-10 13:39:34,140 INFO L275 CfgBuilder]: Performing block encoding [2022-10-10 13:39:34,145 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-10 13:39:34,145 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-10 13:39:34,147 INFO L202 PluginConnector]: Adding new model min-max-sample-abs-nonatomic.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 01:39:34 BoogieIcfgContainer [2022-10-10 13:39:34,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-10 13:39:34,148 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-10 13:39:34,148 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-10 13:39:34,150 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-10 13:39:34,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-sample-abs-nonatomic.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 01:39:33" (1/2) ... [2022-10-10 13:39:34,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14ce34c7 and model type min-max-sample-abs-nonatomic.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 01:39:34, skipping insertion in model container [2022-10-10 13:39:34,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-sample-abs-nonatomic.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 01:39:34" (2/2) ... [2022-10-10 13:39:34,154 INFO L112 eAbstractionObserver]: Analyzing ICFG min-max-sample-abs-nonatomic.bpl [2022-10-10 13:39:34,164 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-10 13:39:34,171 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-10 13:39:34,171 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-10 13:39:34,172 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-10 13:39:34,254 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-10-10 13:39:34,323 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-10 13:39:34,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-10 13:39:34,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-10 13:39:34,339 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-10 13:39:34,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-10-10 13:39:34,368 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-10 13:39:34,390 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2022-10-10 13:39:34,390 WARN L162 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2022-10-10 13:39:34,390 WARN L163 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2022-10-10 13:39:34,397 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-10-10 13:39:34,405 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3afb0f43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-10 13:39:34,405 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-10 13:39:34,906 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-10 13:39:34,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-10 13:39:34,912 INFO L85 PathProgramCache]: Analyzing trace with hash 818726503, now seen corresponding path program 1 times [2022-10-10 13:39:34,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-10 13:39:34,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663108062] [2022-10-10 13:39:34,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-10 13:39:34,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-10 13:39:35,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-10 13:39:35,527 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-10 13:39:35,527 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-10 13:39:35,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663108062] [2022-10-10 13:39:35,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663108062] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-10 13:39:35,528 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-10 13:39:35,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2022-10-10 13:39:35,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127674837] [2022-10-10 13:39:35,529 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-10 13:39:35,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-10-10 13:39:35,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-10 13:39:35,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-10-10 13:39:35,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-10-10 13:39:35,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-10 13:39:35,589 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-10 13:39:35,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.25) internal successors, (45), 21 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-10 13:39:35,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-10 13:39:37,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-10-10 13:39:37,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-10 13:39:37,288 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-10 13:39:37,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-10 13:39:37,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1376536335, now seen corresponding path program 1 times [2022-10-10 13:39:37,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-10 13:39:37,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495320173] [2022-10-10 13:39:37,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-10 13:39:37,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-10 13:39:37,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-10 13:39:37,392 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 41 proven. 48 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-10-10 13:39:37,392 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-10 13:39:37,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495320173] [2022-10-10 13:39:37,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495320173] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-10 13:39:37,393 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-10 13:39:37,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2022-10-10 13:39:37,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630312675] [2022-10-10 13:39:37,393 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-10 13:39:37,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-10 13:39:37,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-10 13:39:37,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-10 13:39:37,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-10 13:39:37,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-10 13:39:37,395 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-10 13:39:37,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 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) [2022-10-10 13:39:37,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-10-10 13:39:37,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-10 13:39:38,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-10-10 13:39:38,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-10 13:39:38,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-10 13:39:38,028 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-10 13:39:38,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-10 13:39:38,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1345776460, now seen corresponding path program 2 times [2022-10-10 13:39:38,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-10 13:39:38,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733229002] [2022-10-10 13:39:38,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-10 13:39:38,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-10 13:39:38,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-10 13:39:38,172 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 68 proven. 178 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-10 13:39:38,173 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-10 13:39:38,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733229002] [2022-10-10 13:39:38,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733229002] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-10 13:39:38,173 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-10 13:39:38,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2022-10-10 13:39:38,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393279546] [2022-10-10 13:39:38,173 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-10 13:39:38,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-10 13:39:38,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-10 13:39:38,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-10 13:39:38,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-10-10 13:39:38,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-10 13:39:38,175 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-10 13:39:38,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.416666666666667) internal successors, (77), 12 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-10 13:39:38,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-10-10 13:39:38,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-10-10 13:39:38,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-10 13:39:39,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-10-10 13:39:39,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-10 13:39:39,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-10 13:39:39,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-10 13:39:39,409 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-10 13:39:39,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-10 13:39:39,409 INFO L85 PathProgramCache]: Analyzing trace with hash -57118186, now seen corresponding path program 3 times [2022-10-10 13:39:39,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-10 13:39:39,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126965884] [2022-10-10 13:39:39,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-10 13:39:39,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-10 13:39:39,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-10 13:39:39,556 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 312 proven. 129 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-10-10 13:39:39,557 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-10 13:39:39,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126965884] [2022-10-10 13:39:39,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126965884] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-10 13:39:39,557 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-10 13:39:39,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2022-10-10 13:39:39,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430171506] [2022-10-10 13:39:39,557 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-10 13:39:39,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-10 13:39:39,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-10 13:39:39,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-10 13:39:39,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-10-10 13:39:39,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-10 13:39:39,559 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-10 13:39:39,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 12 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-10 13:39:39,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-10-10 13:39:39,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-10-10 13:39:39,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-10-10 13:39:39,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-10 13:39:46,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-10-10 13:39:46,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-10 13:39:46,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-10 13:39:46,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-10 13:39:46,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-10 13:39:46,184 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-10 13:39:46,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-10 13:39:46,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1622364184, now seen corresponding path program 4 times [2022-10-10 13:39:46,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-10 13:39:46,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209450189] [2022-10-10 13:39:46,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-10 13:39:46,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-10 13:39:46,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-10 13:39:47,142 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 21 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-10 13:39:47,142 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-10 13:39:47,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209450189] [2022-10-10 13:39:47,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209450189] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-10 13:39:47,143 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-10 13:39:47,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2022-10-10 13:39:47,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600535077] [2022-10-10 13:39:47,143 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-10 13:39:47,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-10-10 13:39:47,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-10 13:39:47,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-10-10 13:39:47,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=1200, Unknown=0, NotChecked=0, Total=1332 [2022-10-10 13:39:47,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-10 13:39:47,146 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-10 13:39:47,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 1.8333333333333333) internal successors, (66), 37 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) [2022-10-10 13:39:47,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-10-10 13:39:47,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-10-10 13:39:47,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-10-10 13:39:47,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-10-10 13:39:47,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-10 13:40:34,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-10-10 13:40:34,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-10 13:40:34,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-10 13:40:34,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-10 13:40:34,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-10-10 13:40:34,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-10 13:40:34,202 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-10 13:40:34,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-10 13:40:34,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1873955134, now seen corresponding path program 5 times [2022-10-10 13:40:34,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-10 13:40:34,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975420953] [2022-10-10 13:40:34,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-10 13:40:34,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-10 13:40:34,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-10 13:40:34,436 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 99 proven. 406 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-10 13:40:34,436 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-10 13:40:34,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975420953] [2022-10-10 13:40:34,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975420953] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-10 13:40:34,436 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-10 13:40:34,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2022-10-10 13:40:34,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697053078] [2022-10-10 13:40:34,437 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-10 13:40:34,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-10-10 13:40:34,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-10 13:40:34,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-10-10 13:40:34,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=395, Unknown=0, NotChecked=0, Total=506 [2022-10-10 13:40:34,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-10 13:40:34,438 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-10 13:40:34,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.6521739130434785) internal successors, (107), 23 states have internal predecessors, (107), 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) [2022-10-10 13:40:34,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-10-10 13:40:34,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-10-10 13:40:34,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-10-10 13:40:34,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-10-10 13:40:34,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 192 states. [2022-10-10 13:40:34,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.