/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-NewStatesSleep-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_15.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-13 21:35:10,400 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-13 21:35:10,403 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-13 21:35:10,434 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-13 21:35:10,435 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-13 21:35:10,437 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-13 21:35:10,444 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-13 21:35:10,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-13 21:35:10,450 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-13 21:35:10,453 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-13 21:35:10,454 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-13 21:35:10,455 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-13 21:35:10,455 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-13 21:35:10,457 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-13 21:35:10,458 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-13 21:35:10,458 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-13 21:35:10,460 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-13 21:35:10,461 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-13 21:35:10,463 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-13 21:35:10,467 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-13 21:35:10,468 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-13 21:35:10,468 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-13 21:35:10,470 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-13 21:35:10,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-13 21:35:10,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-13 21:35:10,477 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-13 21:35:10,477 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-13 21:35:10,478 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-13 21:35:10,478 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-13 21:35:10,479 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-13 21:35:10,479 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-13 21:35:10,488 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-13 21:35:10,488 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-13 21:35:10,489 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-13 21:35:10,489 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-13 21:35:10,489 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-13 21:35:10,490 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-13 21:35:10,490 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-13 21:35:10,490 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-13 21:35:10,491 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-13 21:35:10,491 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-13 21:35:10,493 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-NewStatesSleep-NoLbe-Lockstep.epf [2021-06-13 21:35:10,521 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-13 21:35:10,521 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-13 21:35:10,522 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-13 21:35:10,522 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-13 21:35:10,524 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-13 21:35:10,524 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-13 21:35:10,524 INFO L138 SettingsManager]: * Use SBE=true [2021-06-13 21:35:10,524 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-13 21:35:10,524 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-13 21:35:10,524 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-13 21:35:10,524 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-13 21:35:10,524 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-13 21:35:10,525 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-13 21:35:10,525 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-13 21:35:10,525 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-13 21:35:10,525 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-13 21:35:10,525 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-13 21:35:10,525 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-13 21:35:10,525 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-13 21:35:10,525 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-13 21:35:10,525 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-13 21:35:10,525 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-13 21:35:10,526 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-13 21:35:10,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 21:35:10,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-13 21:35:10,526 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-13 21:35:10,526 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-13 21:35:10,526 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-13 21:35:10,526 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-06-13 21:35:10,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-13 21:35:10,526 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-13 21:35:10,526 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-13 21:35:10,527 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-13 21:35:10,527 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-13 21:35:10,527 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-13 21:35:10,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-13 21:35:10,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-13 21:35:10,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-13 21:35:10,798 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-13 21:35:10,799 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-13 21:35:10,799 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_15.bpl [2021-06-13 21:35:10,799 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_15.bpl' [2021-06-13 21:35:10,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-13 21:35:10,831 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-13 21:35:10,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-13 21:35:10,832 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-13 21:35:10,832 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-13 21:35:10,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:35:10" (1/1) ... [2021-06-13 21:35:10,847 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:35:10" (1/1) ... [2021-06-13 21:35:10,853 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-13 21:35:10,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-13 21:35:10,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-13 21:35:10,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-13 21:35:10,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:35:10" (1/1) ... [2021-06-13 21:35:10,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:35:10" (1/1) ... [2021-06-13 21:35:10,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:35:10" (1/1) ... [2021-06-13 21:35:10,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:35:10" (1/1) ... [2021-06-13 21:35:10,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:35:10" (1/1) ... [2021-06-13 21:35:10,865 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:35:10" (1/1) ... [2021-06-13 21:35:10,866 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:35:10" (1/1) ... [2021-06-13 21:35:10,867 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-13 21:35:10,867 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-13 21:35:10,867 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-13 21:35:10,867 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-13 21:35:10,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:35:10" (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 [2021-06-13 21:35:10,926 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_14 given in one single declaration [2021-06-13 21:35:10,926 INFO L130 BoogieDeclarations]: Found specification of procedure set_14 [2021-06-13 21:35:10,927 INFO L138 BoogieDeclarations]: Found implementation of procedure set_14 [2021-06-13 21:35:10,927 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-06-13 21:35:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-06-13 21:35:10,927 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-06-13 21:35:10,927 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-06-13 21:35:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-06-13 21:35:10,927 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-06-13 21:35:10,927 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2021-06-13 21:35:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2021-06-13 21:35:10,928 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2021-06-13 21:35:10,928 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2021-06-13 21:35:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2021-06-13 21:35:10,929 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2021-06-13 21:35:10,929 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-06-13 21:35:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-06-13 21:35:10,929 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-06-13 21:35:10,930 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_9 given in one single declaration [2021-06-13 21:35:10,930 INFO L130 BoogieDeclarations]: Found specification of procedure set_9 [2021-06-13 21:35:10,931 INFO L138 BoogieDeclarations]: Found implementation of procedure set_9 [2021-06-13 21:35:10,931 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-13 21:35:10,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-13 21:35:10,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-13 21:35:10,933 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_12 given in one single declaration [2021-06-13 21:35:10,933 INFO L130 BoogieDeclarations]: Found specification of procedure set_12 [2021-06-13 21:35:10,934 INFO L138 BoogieDeclarations]: Found implementation of procedure set_12 [2021-06-13 21:35:10,934 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2021-06-13 21:35:10,937 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2021-06-13 21:35:10,937 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2021-06-13 21:35:10,937 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_13 given in one single declaration [2021-06-13 21:35:10,937 INFO L130 BoogieDeclarations]: Found specification of procedure set_13 [2021-06-13 21:35:10,937 INFO L138 BoogieDeclarations]: Found implementation of procedure set_13 [2021-06-13 21:35:10,937 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2021-06-13 21:35:10,938 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2021-06-13 21:35:10,938 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2021-06-13 21:35:10,938 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_10 given in one single declaration [2021-06-13 21:35:10,938 INFO L130 BoogieDeclarations]: Found specification of procedure set_10 [2021-06-13 21:35:10,938 INFO L138 BoogieDeclarations]: Found implementation of procedure set_10 [2021-06-13 21:35:10,938 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2021-06-13 21:35:10,938 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2021-06-13 21:35:10,938 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2021-06-13 21:35:10,939 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_11 given in one single declaration [2021-06-13 21:35:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure set_11 [2021-06-13 21:35:10,939 INFO L138 BoogieDeclarations]: Found implementation of procedure set_11 [2021-06-13 21:35:10,939 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2021-06-13 21:35:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2021-06-13 21:35:10,939 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2021-06-13 21:35:10,940 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-13 21:35:11,085 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-13 21:35:11,085 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-13 21:35:11,087 INFO L202 PluginConnector]: Adding new model example_15.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 09:35:11 BoogieIcfgContainer [2021-06-13 21:35:11,087 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-13 21:35:11,088 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-13 21:35:11,088 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-13 21:35:11,090 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-13 21:35:11,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:35:10" (1/2) ... [2021-06-13 21:35:11,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c7f3799 and model type example_15.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 09:35:11, skipping insertion in model container [2021-06-13 21:35:11,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_15.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 09:35:11" (2/2) ... [2021-06-13 21:35:11,092 INFO L111 eAbstractionObserver]: Analyzing ICFG example_15.bpl [2021-06-13 21:35:11,096 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-13 21:35:11,096 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-13 21:35:11,096 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-13 21:35:11,096 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-13 21:35:11,382 INFO L149 ThreadInstanceAdder]: Constructed 225 joinOtherThreadTransitions. [2021-06-13 21:35:11,399 INFO L255 AbstractCegarLoop]: Starting to check reachability of 16 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) [2021-06-13 21:35:11,468 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 21:35:11,468 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 21:35:11,468 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 21:35:11,468 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 21:35:11,468 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 21:35:11,468 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 21:35:11,468 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 21:35:11,468 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-13 21:35:11,579 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr14INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-06-13 21:35:11,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 21:35:11,584 INFO L82 PathProgramCache]: Analyzing trace with hash 609626950, now seen corresponding path program 1 times [2021-06-13 21:35:11,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 21:35:11,590 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678411886] [2021-06-13 21:35:11,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 21:35:11,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 21:35:11,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 21:35:11,749 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 21:35:11,749 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678411886] [2021-06-13 21:35:11,750 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678411886] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 21:35:11,750 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 21:35:11,750 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-13 21:35:11,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419617599] [2021-06-13 21:35:11,753 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-13 21:35:11,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 21:35:11,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-13 21:35:11,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-13 21:35:11,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:35:11,764 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 21:35:11,765 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 21:35:11,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:35:11,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:35:11,837 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-13 21:35:11,837 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr14INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-06-13 21:35:11,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 21:35:11,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1302800748, now seen corresponding path program 1 times [2021-06-13 21:35:11,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 21:35:11,840 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232114209] [2021-06-13 21:35:11,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 21:35:11,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 21:35:11,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 21:35:11,902 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 21:35:11,902 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232114209] [2021-06-13 21:35:11,903 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232114209] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 21:35:11,903 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 21:35:11,903 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-13 21:35:11,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808428151] [2021-06-13 21:35:11,905 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-13 21:35:11,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 21:35:11,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-13 21:35:11,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-13 21:35:11,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:35:11,906 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 21:35:11,906 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 21:35:11,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:35:11,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:35:11,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:35:11,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:35:11,974 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-13 21:35:11,974 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr14INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-06-13 21:35:11,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 21:35:11,974 INFO L82 PathProgramCache]: Analyzing trace with hash -861299002, now seen corresponding path program 1 times [2021-06-13 21:35:11,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 21:35:11,974 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795439625] [2021-06-13 21:35:11,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 21:35:11,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 21:35:12,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 21:35:12,005 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 21:35:12,005 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795439625] [2021-06-13 21:35:12,005 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795439625] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 21:35:12,005 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 21:35:12,005 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-13 21:35:12,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932399087] [2021-06-13 21:35:12,006 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-13 21:35:12,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 21:35:12,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-13 21:35:12,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-13 21:35:12,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:35:12,007 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 21:35:12,007 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 21:35:12,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:35:12,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:35:12,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:35:12,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:35:12,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:35:12,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:35:12,044 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-13 21:35:12,044 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr14INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-06-13 21:35:12,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 21:35:12,044 INFO L82 PathProgramCache]: Analyzing trace with hash 236175980, now seen corresponding path program 1 times [2021-06-13 21:35:12,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 21:35:12,044 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226092120] [2021-06-13 21:35:12,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 21:35:12,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 21:35:12,645 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2021-06-13 21:35:13,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 21:35:13,373 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 21:35:13,373 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226092120] [2021-06-13 21:35:13,373 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226092120] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 21:35:13,373 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 21:35:13,373 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-06-13 21:35:13,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565899969] [2021-06-13 21:35:13,374 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-13 21:35:13,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 21:35:13,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-13 21:35:13,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=150, Unknown=0, NotChecked=0, Total=272 [2021-06-13 21:35:13,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:35:13,377 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 21:35:13,377 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 16 states have (on average 3.8125) internal successors, (61), 17 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 21:35:13,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:35:13,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:35:13,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:35:13,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.