/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-1-dsl.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-17 13:17:03,783 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-17 13:17:03,786 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-17 13:17:03,813 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-17 13:17:03,814 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-17 13:17:03,816 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-17 13:17:03,817 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-17 13:17:03,821 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-17 13:17:03,823 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-17 13:17:03,829 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-17 13:17:03,832 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-17 13:17:03,832 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-17 13:17:03,833 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-17 13:17:03,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-17 13:17:03,834 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-17 13:17:03,835 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-17 13:17:03,836 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-17 13:17:03,837 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-17 13:17:03,838 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-17 13:17:03,839 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-17 13:17:03,840 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-17 13:17:03,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-17 13:17:03,847 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-17 13:17:03,849 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-17 13:17:03,857 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-17 13:17:03,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-17 13:17:03,858 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-17 13:17:03,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-17 13:17:03,859 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-17 13:17:03,860 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-17 13:17:03,861 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-17 13:17:03,861 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-17 13:17:03,863 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-17 13:17:03,863 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-17 13:17:03,864 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-17 13:17:03,864 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-17 13:17:03,865 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-17 13:17:03,865 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-17 13:17:03,865 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-17 13:17:03,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-17 13:17:03,878 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-17 13:17:03,882 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf [2021-06-17 13:17:03,919 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-17 13:17:03,919 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-17 13:17:03,919 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-17 13:17:03,920 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-17 13:17:03,922 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-17 13:17:03,922 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-17 13:17:03,922 INFO L138 SettingsManager]: * Use SBE=true [2021-06-17 13:17:03,923 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-17 13:17:03,923 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-17 13:17:03,923 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-17 13:17:03,924 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-17 13:17:03,924 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-17 13:17:03,924 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-17 13:17:03,924 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-17 13:17:03,924 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-17 13:17:03,924 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-17 13:17:03,925 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-17 13:17:03,925 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-17 13:17:03,925 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-17 13:17:03,925 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-17 13:17:03,925 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-17 13:17:03,925 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-17 13:17:03,926 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-17 13:17:03,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-17 13:17:03,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-17 13:17:03,926 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-17 13:17:03,927 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-17 13:17:03,927 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-17 13:17:03,927 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-17 13:17:03,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-17 13:17:03,927 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-17 13:17:03,927 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-17 13:17:03,928 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-17 13:17:03,928 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-06-17 13:17:03,928 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-17 13:17:03,928 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-17 13:17:04,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-17 13:17:04,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-17 13:17:04,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-17 13:17:04,246 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-17 13:17:04,249 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-17 13:17:04,250 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-1-dsl.wvr.bpl [2021-06-17 13:17:04,263 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-1-dsl.wvr.bpl' [2021-06-17 13:17:04,328 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-17 13:17:04,329 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-17 13:17:04,330 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-17 13:17:04,331 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-17 13:17:04,331 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-17 13:17:04,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:17:04" (1/1) ... [2021-06-17 13:17:04,347 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:17:04" (1/1) ... [2021-06-17 13:17:04,354 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-17 13:17:04,355 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-17 13:17:04,355 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-17 13:17:04,355 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-17 13:17:04,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:17:04" (1/1) ... [2021-06-17 13:17:04,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:17:04" (1/1) ... [2021-06-17 13:17:04,364 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:17:04" (1/1) ... [2021-06-17 13:17:04,364 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:17:04" (1/1) ... [2021-06-17 13:17:04,368 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:17:04" (1/1) ... [2021-06-17 13:17:04,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:17:04" (1/1) ... [2021-06-17 13:17:04,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:17:04" (1/1) ... [2021-06-17 13:17:04,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-17 13:17:04,373 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-17 13:17:04,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-17 13:17:04,373 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-17 13:17:04,374 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:17:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-17 13:17:04,437 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-17 13:17:04,437 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-17 13:17:04,437 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-17 13:17:04,438 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-17 13:17:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-17 13:17:04,438 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-17 13:17:04,438 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-17 13:17:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-17 13:17:04,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-17 13:17:04,438 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-17 13:17:04,439 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-17 13:17:04,439 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-17 13:17:04,439 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-06-17 13:17:04,439 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-06-17 13:17:04,439 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-06-17 13:17:04,439 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2021-06-17 13:17:04,439 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-06-17 13:17:04,439 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-06-17 13:17:04,440 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2021-06-17 13:17:04,440 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2021-06-17 13:17:04,440 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2021-06-17 13:17:04,441 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-17 13:17:04,832 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-17 13:17:04,832 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-17 13:17:04,833 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2021-06-17 13:17:04,833 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread3EXIT is neither atomic block end nor error location. [2021-06-17 13:17:04,834 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread5EXIT is neither atomic block end nor error location. [2021-06-17 13:17:04,834 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread6EXIT is neither atomic block end nor error location. [2021-06-17 13:17:04,835 INFO L202 PluginConnector]: Adding new model parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 01:17:04 BoogieIcfgContainer [2021-06-17 13:17:04,835 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-17 13:17:04,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-17 13:17:04,837 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-17 13:17:04,840 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-17 13:17:04,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:17:04" (1/2) ... [2021-06-17 13:17:04,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cba6eab and model type parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.06 01:17:04, skipping insertion in model container [2021-06-17 13:17:04,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 01:17:04" (2/2) ... [2021-06-17 13:17:04,842 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-sum-1-dsl.wvr.bpl [2021-06-17 13:17:04,847 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-17 13:17:04,847 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-17 13:17:04,847 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-17 13:17:04,854 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-17 13:17:05,016 INFO L149 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2021-06-17 13:17:05,042 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-17 13:17:05,105 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-17 13:17:05,105 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-17 13:17:05,106 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-17 13:17:05,106 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-17 13:17:05,106 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-17 13:17:05,106 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-17 13:17:05,106 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-17 13:17:05,106 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == thread4Thread1of1ForFork1======== [2021-06-17 13:17:06,351 INFO L301 ceAbstractionStarter]: Result for error location thread4Thread1of1ForFork1 was SAFE (1/5) [2021-06-17 13:17:06,360 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-17 13:17:06,377 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-17 13:17:06,377 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-17 13:17:06,377 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-17 13:17:06,377 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-17 13:17:06,377 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-17 13:17:06,377 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-17 13:17:06,377 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-17 13:17:06,377 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == thread1======== [2021-06-17 13:17:07,105 INFO L301 ceAbstractionStarter]: Result for error location thread1 was SAFE (2/5) [2021-06-17 13:17:07,106 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-06-17 13:17:07,129 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-17 13:17:07,129 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-17 13:17:07,129 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-17 13:17:07,129 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-17 13:17:07,129 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-17 13:17:07,130 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-17 13:17:07,130 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-17 13:17:07,130 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == thread4======== Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-17 13:17:07,837 INFO L301 ceAbstractionStarter]: Result for error location thread4 was SAFE (3/5) [2021-06-17 13:17:07,838 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-06-17 13:17:07,852 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-17 13:17:07,852 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-17 13:17:07,852 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-17 13:17:07,852 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-17 13:17:07,852 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-17 13:17:07,853 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-17 13:17:07,853 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-17 13:17:07,853 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == thread1Thread1of1ForFork0======== Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-17 13:17:08,434 INFO L301 ceAbstractionStarter]: Result for error location thread1Thread1of1ForFork0 was SAFE (4/5) [2021-06-17 13:17:08,434 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 [2021-06-17 13:17:08,439 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-17 13:17:08,439 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-17 13:17:08,440 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-17 13:17:08,440 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-17 13:17:08,440 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-17 13:17:08,440 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-17 13:17:08,440 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-17 13:17:08,440 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-17 13:17:08,517 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:17:08,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:17:08,522 INFO L82 PathProgramCache]: Analyzing trace with hash -157509840, now seen corresponding path program 1 times [2021-06-17 13:17:08,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:17:08,530 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155245410] [2021-06-17 13:17:08,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:17:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:17:08,650 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:17:08,650 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:17:08,651 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155245410] [2021-06-17 13:17:08,651 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155245410] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-17 13:17:08,651 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-17 13:17:08,651 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-17 13:17:08,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324656892] [2021-06-17 13:17:08,656 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-17 13:17:08,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:17:08,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-17 13:17:08,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-17 13:17:08,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:17:08,669 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:17:08,669 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 13:17:08,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:17:08,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 13:17:08,697 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-17 13:17:08,697 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:17:08,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:17:08,698 INFO L82 PathProgramCache]: Analyzing trace with hash -578899847, now seen corresponding path program 1 times [2021-06-17 13:17:08,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:17:08,698 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102625746] [2021-06-17 13:17:08,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:17:08,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:17:08,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:17:08,749 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:17:08,749 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102625746] [2021-06-17 13:17:08,750 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102625746] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-17 13:17:08,750 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-17 13:17:08,750 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-17 13:17:08,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916459891] [2021-06-17 13:17:08,751 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-17 13:17:08,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:17:08,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-17 13:17:08,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-17 13:17:08,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:17:08,752 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:17:08,752 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 13:17:08,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 13:17:08,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:17:08,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 13:17:08,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 13:17:08,848 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-17 13:17:08,848 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:17:08,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:17:08,848 INFO L82 PathProgramCache]: Analyzing trace with hash -1965590256, now seen corresponding path program 1 times [2021-06-17 13:17:08,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:17:08,849 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676325090] [2021-06-17 13:17:08,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:17:08,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:17:08,897 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 13:17:08,897 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:17:08,898 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676325090] [2021-06-17 13:17:08,898 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676325090] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-17 13:17:08,898 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-17 13:17:08,898 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-17 13:17:08,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521867652] [2021-06-17 13:17:08,899 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-17 13:17:08,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:17:08,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-17 13:17:08,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-06-17 13:17:08,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:17:08,900 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:17:08,900 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 13:17:08,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 13:17:08,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 13:17:08,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:17:09,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 13:17:09,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 13:17:09,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 13:17:09,056 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-17 13:17:09,056 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:17:09,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:17:09,057 INFO L82 PathProgramCache]: Analyzing trace with hash 147192082, now seen corresponding path program 2 times [2021-06-17 13:17:09,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:17:09,057 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463087367] [2021-06-17 13:17:09,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:17:09,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:17:09,119 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 13:17:09,119 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:17:09,119 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463087367] [2021-06-17 13:17:09,119 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463087367] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:17:09,119 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159243609] [2021-06-17 13:17:09,120 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:17:09,182 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 13:17:09,182 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 13:17:09,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-17 13:17:09,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:17:09,360 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:17:09,360 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1159243609] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:17:09,360 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:17:09,361 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 13 [2021-06-17 13:17:09,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090190896] [2021-06-17 13:17:09,361 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-17 13:17:09,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:17:09,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-17 13:17:09,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-06-17 13:17:09,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:17:09,362 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:17:09,363 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 13 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 13:17:09,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 13:17:09,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 13:17:09,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 13:17:09,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:17:09,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 13:17:09,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 13:17:09,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 13:17:09,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 13:17:09,806 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:17:09,806 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:17:09,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:17:09,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1513938900, now seen corresponding path program 3 times [2021-06-17 13:17:09,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:17:09,807 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025135239] [2021-06-17 13:17:09,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:17:09,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:17:09,915 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 13:17:09,915 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:17:09,915 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025135239] [2021-06-17 13:17:09,915 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025135239] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:17:09,915 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207616638] [2021-06-17 13:17:09,917 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:17:09,990 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-06-17 13:17:09,990 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 13:17:09,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-17 13:17:09,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:17:10,222 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:17:10,223 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1207616638] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:17:10,223 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:17:10,223 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 17 [2021-06-17 13:17:10,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297912193] [2021-06-17 13:17:10,224 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-17 13:17:10,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:17:10,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-17 13:17:10,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2021-06-17 13:17:10,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:17:10,226 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:17:10,227 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.176470588235294) internal successors, (54), 17 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 13:17:10,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 13:17:10,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 13:17:10,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 13:17:10,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 13:17:10,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:17:10,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 13:17:10,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 13:17:10,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 13:17:10,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 13:17:10,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-17 13:17:10,685 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:17:10,685 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:17:10,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:17:10,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1802997515, now seen corresponding path program 4 times [2021-06-17 13:17:10,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:17:10,686 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780232971] [2021-06-17 13:17:10,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:17:10,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:17:11,396 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 4 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:17:11,397 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:17:11,397 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780232971] [2021-06-17 13:17:11,397 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780232971] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:17:11,397 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425557243] [2021-06-17 13:17:11,397 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:17:11,476 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-17 13:17:11,477 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 13:17:11,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 57 conjunts are in the unsatisfiable core [2021-06-17 13:17:11,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:17:12,109 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 [2021-06-17 13:17:12,111 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:17:12,112 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:17:12,113 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 13:17:12,113 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:10 [2021-06-17 13:17:12,233 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:17:12,234 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [425557243] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:17:12,234 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:17:12,234 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 20] total 38 [2021-06-17 13:17:12,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975988689] [2021-06-17 13:17:12,235 INFO L462 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-06-17 13:17:12,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:17:12,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-06-17 13:17:12,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=1255, Unknown=0, NotChecked=0, Total=1406 [2021-06-17 13:17:12,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:17:12,239 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:17:12,239 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) [2021-06-17 13:17:12,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 13:17:12,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 13:17:12,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 13:17:12,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 13:17:12,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-17 13:17:12,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:17:13,475 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-06-17 13:17:15,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 13:17:15,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 13:17:15,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 13:17:15,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-17 13:17:15,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 13:17:15,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-06-17 13:17:15,826 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-06-17 13:17:15,826 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:17:15,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:17:15,827 INFO L82 PathProgramCache]: Analyzing trace with hash 2026028631, now seen corresponding path program 5 times [2021-06-17 13:17:15,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:17:15,827 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594470004] [2021-06-17 13:17:15,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:17:15,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:17:16,865 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 9 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:17:16,865 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:17:16,865 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594470004] [2021-06-17 13:17:16,865 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594470004] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:17:16,865 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139787376] [2021-06-17 13:17:16,866 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 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:17:16,934 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-06-17 13:17:16,935 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 13:17:16,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 69 conjunts are in the unsatisfiable core [2021-06-17 13:17:16,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:17:17,844 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 [2021-06-17 13:17:17,845 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:17:17,847 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:17:17,848 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 13:17:17,848 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:41, output treesize:10 [2021-06-17 13:17:17,961 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:17:17,962 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139787376] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:17:17,962 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:17:17,962 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 24] total 46 [2021-06-17 13:17:17,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654506441] [2021-06-17 13:17:17,964 INFO L462 AbstractCegarLoop]: Interpolant automaton has 46 states [2021-06-17 13:17:17,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:17:17,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-06-17 13:17:17,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=1863, Unknown=0, NotChecked=0, Total=2070 [2021-06-17 13:17:17,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:17:17,967 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:17:17,967 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) [2021-06-17 13:17:17,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 13:17:17,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 13:17:17,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 13:17:17,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-17 13:17:17,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-17 13:17:17,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-06-17 13:17:17,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:17:22,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 13:17:22,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 13:17:22,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 13:17:22,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-17 13:17:22,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 13:17:22,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-06-17 13:17:22,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-06-17 13:17:22,614 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:17:22,614 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:17:22,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:17:22,614 INFO L82 PathProgramCache]: Analyzing trace with hash -1129315655, now seen corresponding path program 6 times [2021-06-17 13:17:22,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:17:22,614 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962473022] [2021-06-17 13:17:22,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:17:22,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:17:23,664 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 16 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:17:23,665 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:17:23,665 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962473022] [2021-06-17 13:17:23,665 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962473022] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:17:23,665 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094873366] [2021-06-17 13:17:23,665 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:17:23,725 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-06-17 13:17:23,725 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 13:17:23,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 81 conjunts are in the unsatisfiable core [2021-06-17 13:17:23,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:17:25,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:17:25,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:17:25,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:17:25,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:17:25,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:17:25,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:17:25,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:17:25,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:17:25,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:17:25,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:17:25,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:17:25,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:17:25,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:17:25,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:17:25,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:17:25,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:17:25,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:17:25,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:17:25,175 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-06-17 13:17:25,176 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:17:25,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 19 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 26 case distinctions, treesize of input 59 treesize of output 285 [2021-06-17 13:17:25,595 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 246 DAG size of output: 246 [2021-06-17 13:17:25,735 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 287 [2021-06-17 13:17:25,854 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 211 [2021-06-17 13:17:25,962 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 227 [2021-06-17 13:17:26,483 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 341 DAG size of output: 286 [2021-06-17 13:17:26,616 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 461 DAG size of output: 406 [2021-06-17 13:17:26,817 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 533 DAG size of output: 471 [2021-06-17 13:17:27,178 WARN L205 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 695 DAG size of output: 617 [2021-06-17 13:17:27,654 WARN L205 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 849 DAG size of output: 772 [2021-06-17 13:17:28,150 WARN L205 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 849 DAG size of output: 772 [2021-06-17 13:17:28,520 WARN L205 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 856 DAG size of output: 779 [2021-06-17 13:17:29,157 WARN L205 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 753 DAG size of output: 942 [2021-06-17 13:17:29,424 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 705 DAG size of output: 705 [2021-06-17 13:17:29,871 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 513 DAG size of output: 411 [2021-06-17 13:17:30,008 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 595 DAG size of output: 474 [2021-06-17 13:17:30,217 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 757 DAG size of output: 613 [2021-06-17 13:17:30,373 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 551 DAG size of output: 551 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown