/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-MCRwithDepranks-Lazy-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_14.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-19 22:11:02,170 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-19 22:11:02,171 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-19 22:11:02,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-19 22:11:02,232 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-19 22:11:02,233 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-19 22:11:02,234 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-19 22:11:02,235 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-19 22:11:02,240 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-19 22:11:02,244 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-19 22:11:02,245 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-19 22:11:02,247 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-19 22:11:02,247 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-19 22:11:02,249 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-19 22:11:02,250 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-19 22:11:02,252 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-19 22:11:02,252 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-19 22:11:02,253 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-19 22:11:02,259 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-19 22:11:02,263 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-19 22:11:02,264 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-19 22:11:02,265 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-19 22:11:02,266 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-19 22:11:02,267 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-19 22:11:02,271 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-19 22:11:02,271 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-19 22:11:02,271 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-19 22:11:02,272 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-19 22:11:02,272 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-19 22:11:02,273 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-19 22:11:02,273 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-19 22:11:02,273 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-19 22:11:02,274 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-19 22:11:02,274 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-19 22:11:02,275 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-19 22:11:02,275 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-19 22:11:02,275 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-19 22:11:02,276 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-19 22:11:02,276 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-19 22:11:02,276 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-19 22:11:02,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-19 22:11:02,280 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-MCRwithDepranks-Lazy-wrwc.epf [2022-02-19 22:11:02,308 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-19 22:11:02,309 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-19 22:11:02,309 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-19 22:11:02,309 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-19 22:11:02,310 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-19 22:11:02,310 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-19 22:11:02,310 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-19 22:11:02,310 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-19 22:11:02,311 INFO L138 SettingsManager]: * Use SBE=true [2022-02-19 22:11:02,311 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-19 22:11:02,311 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-19 22:11:02,312 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-19 22:11:02,312 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-19 22:11:02,312 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-19 22:11:02,312 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-19 22:11:02,312 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-19 22:11:02,312 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-19 22:11:02,312 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-19 22:11:02,312 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-19 22:11:02,312 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-19 22:11:02,312 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-19 22:11:02,313 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-19 22:11:02,313 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-19 22:11:02,313 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-19 22:11:02,314 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-19 22:11:02,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 22:11:02,314 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-19 22:11:02,314 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-19 22:11:02,315 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-19 22:11:02,315 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-19 22:11:02,315 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-19 22:11:02,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-19 22:11:02,315 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-19 22:11:02,315 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-19 22:11:02,315 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-19 22:11:02,315 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-19 22:11:02,315 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-02-19 22:11:02,316 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-19 22:11:02,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-19 22:11:02,540 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-19 22:11:02,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-19 22:11:02,542 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-19 22:11:02,544 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-19 22:11:02,545 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_14.bpl [2022-02-19 22:11:02,545 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_14.bpl' [2022-02-19 22:11:02,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-19 22:11:02,562 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-19 22:11:02,562 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-19 22:11:02,562 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-19 22:11:02,563 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-19 22:11:02,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:11:02" (1/1) ... [2022-02-19 22:11:02,575 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:11:02" (1/1) ... [2022-02-19 22:11:02,581 INFO L137 Inliner]: procedures = 15, calls = 14, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-19 22:11:02,582 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-19 22:11:02,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-19 22:11:02,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-19 22:11:02,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-19 22:11:02,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:11:02" (1/1) ... [2022-02-19 22:11:02,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:11:02" (1/1) ... [2022-02-19 22:11:02,589 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:11:02" (1/1) ... [2022-02-19 22:11:02,589 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:11:02" (1/1) ... [2022-02-19 22:11:02,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:11:02" (1/1) ... [2022-02-19 22:11:02,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:11:02" (1/1) ... [2022-02-19 22:11:02,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:11:02" (1/1) ... [2022-02-19 22:11:02,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-19 22:11:02,599 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-19 22:11:02,599 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-19 22:11:02,599 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-19 22:11:02,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:11:02" (1/1) ... [2022-02-19 22:11:02,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 22:11:02,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:11:02,636 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-19 22:11:02,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-19 22:11:02,719 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2022-02-19 22:11:02,719 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2022-02-19 22:11:02,719 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2022-02-19 22:11:02,720 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2022-02-19 22:11:02,720 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2022-02-19 22:11:02,720 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2022-02-19 22:11:02,720 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2022-02-19 22:11:02,720 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2022-02-19 22:11:02,720 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2022-02-19 22:11:02,721 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2022-02-19 22:11:02,721 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2022-02-19 22:11:02,721 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2022-02-19 22:11:02,722 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2022-02-19 22:11:02,722 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2022-02-19 22:11:02,724 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2022-02-19 22:11:02,724 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_9 given in one single declaration [2022-02-19 22:11:02,724 INFO L130 BoogieDeclarations]: Found specification of procedure set_9 [2022-02-19 22:11:02,724 INFO L138 BoogieDeclarations]: Found implementation of procedure set_9 [2022-02-19 22:11:02,724 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-19 22:11:02,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-19 22:11:02,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-19 22:11:02,738 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_12 given in one single declaration [2022-02-19 22:11:02,738 INFO L130 BoogieDeclarations]: Found specification of procedure set_12 [2022-02-19 22:11:02,738 INFO L138 BoogieDeclarations]: Found implementation of procedure set_12 [2022-02-19 22:11:02,738 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2022-02-19 22:11:02,738 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2022-02-19 22:11:02,738 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2022-02-19 22:11:02,738 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_13 given in one single declaration [2022-02-19 22:11:02,738 INFO L130 BoogieDeclarations]: Found specification of procedure set_13 [2022-02-19 22:11:02,739 INFO L138 BoogieDeclarations]: Found implementation of procedure set_13 [2022-02-19 22:11:02,739 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2022-02-19 22:11:02,739 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2022-02-19 22:11:02,739 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2022-02-19 22:11:02,739 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_10 given in one single declaration [2022-02-19 22:11:02,739 INFO L130 BoogieDeclarations]: Found specification of procedure set_10 [2022-02-19 22:11:02,739 INFO L138 BoogieDeclarations]: Found implementation of procedure set_10 [2022-02-19 22:11:02,739 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2022-02-19 22:11:02,739 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2022-02-19 22:11:02,739 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2022-02-19 22:11:02,739 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_11 given in one single declaration [2022-02-19 22:11:02,739 INFO L130 BoogieDeclarations]: Found specification of procedure set_11 [2022-02-19 22:11:02,739 INFO L138 BoogieDeclarations]: Found implementation of procedure set_11 [2022-02-19 22:11:02,740 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2022-02-19 22:11:02,740 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2022-02-19 22:11:02,740 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2022-02-19 22:11:02,740 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-19 22:11:02,781 INFO L234 CfgBuilder]: Building ICFG [2022-02-19 22:11:02,783 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-19 22:11:02,877 INFO L275 CfgBuilder]: Performing block encoding [2022-02-19 22:11:02,894 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-19 22:11:02,894 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-19 22:11:02,896 INFO L202 PluginConnector]: Adding new model example_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 10:11:02 BoogieIcfgContainer [2022-02-19 22:11:02,896 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-19 22:11:02,897 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-19 22:11:02,897 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-19 22:11:02,914 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-19 22:11:02,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:11:02" (1/2) ... [2022-02-19 22:11:02,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4adb84d2 and model type example_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 10:11:02, skipping insertion in model container [2022-02-19 22:11:02,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 10:11:02" (2/2) ... [2022-02-19 22:11:02,916 INFO L111 eAbstractionObserver]: Analyzing ICFG example_14.bpl [2022-02-19 22:11:02,919 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-19 22:11:02,919 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-19 22:11:02,919 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-19 22:11:02,919 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-19 22:11:03,042 INFO L148 ThreadInstanceAdder]: Constructed 196 joinOtherThreadTransitions. [2022-02-19 22:11:03,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-19 22:11:03,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:11:03,076 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-19 22:11:03,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-19 22:11:03,098 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-19 22:11:03,102 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=false [2022-02-19 22:11:03,102 INFO L340 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-02-19 22:11:04,112 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 17754 transitions and produced 4193 states. [2022-02-19 22:11:04,114 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 11 more)] === [2022-02-19 22:11:04,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:11:04,118 INFO L85 PathProgramCache]: Analyzing trace with hash 182257486, now seen corresponding path program 1 times [2022-02-19 22:11:04,124 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:11:04,124 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627441070] [2022-02-19 22:11:04,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:11:04,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:11:04,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:11:04,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:11:04,303 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:11:04,303 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627441070] [2022-02-19 22:11:04,303 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627441070] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 22:11:04,303 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-19 22:11:04,303 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-19 22:11:04,314 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907252012] [2022-02-19 22:11:04,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 22:11:04,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-19 22:11:04,318 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:11:04,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-19 22:11:04,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-19 22:11:04,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:11:04,360 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:11:04,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 22:11:04,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:11:04,886 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4971 transitions and produced 1853 states. [2022-02-19 22:11:04,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:04,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-19 22:11:04,887 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 11 more)] === [2022-02-19 22:11:04,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:11:04,889 INFO L85 PathProgramCache]: Analyzing trace with hash 301191084, now seen corresponding path program 1 times [2022-02-19 22:11:04,889 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:11:04,890 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277728753] [2022-02-19 22:11:04,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:11:04,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:11:04,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:11:04,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:11:04,965 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:11:04,966 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277728753] [2022-02-19 22:11:04,966 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277728753] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 22:11:04,966 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-19 22:11:04,967 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-19 22:11:04,967 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211423885] [2022-02-19 22:11:04,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 22:11:04,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-19 22:11:04,969 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:11:04,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-19 22:11:04,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-19 22:11:04,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:11:04,970 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:11:04,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 22:11:04,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:04,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:11:05,280 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1524 transitions and produced 784 states. [2022-02-19 22:11:05,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:05,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:05,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-19 22:11:05,282 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 11 more)] === [2022-02-19 22:11:05,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:11:05,292 INFO L85 PathProgramCache]: Analyzing trace with hash 315506550, now seen corresponding path program 1 times [2022-02-19 22:11:05,292 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:11:05,293 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123070069] [2022-02-19 22:11:05,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:11:05,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:11:05,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:11:05,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:11:05,359 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:11:05,359 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123070069] [2022-02-19 22:11:05,360 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123070069] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 22:11:05,361 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-19 22:11:05,361 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-19 22:11:05,361 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041124306] [2022-02-19 22:11:05,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 22:11:05,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-19 22:11:05,362 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:11:05,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-19 22:11:05,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-19 22:11:05,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:11:05,362 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:11:05,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 22:11:05,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:05,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:05,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:11:05,541 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 946 transitions and produced 532 states. [2022-02-19 22:11:05,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:05,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:05,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:05,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-19 22:11:05,543 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 11 more)] === [2022-02-19 22:11:05,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:11:05,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1316597592, now seen corresponding path program 1 times [2022-02-19 22:11:05,544 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:11:05,544 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155980938] [2022-02-19 22:11:05,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:11:05,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:11:05,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:11:05,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:11:05,626 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:11:05,626 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155980938] [2022-02-19 22:11:05,626 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155980938] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 22:11:05,626 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-19 22:11:05,626 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-19 22:11:05,626 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077792803] [2022-02-19 22:11:05,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 22:11:05,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-19 22:11:05,627 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:11:05,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-19 22:11:05,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-19 22:11:05,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:11:05,628 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:11:05,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 22:11:05,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:05,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:05,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:05,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:11:05,791 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 716 transitions and produced 431 states. [2022-02-19 22:11:05,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:05,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:05,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:05,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:05,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-19 22:11:05,792 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 11 more)] === [2022-02-19 22:11:05,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:11:05,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1476773784, now seen corresponding path program 1 times [2022-02-19 22:11:05,792 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:11:05,792 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607634787] [2022-02-19 22:11:05,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:11:05,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:11:05,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:11:05,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:11:05,846 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:11:05,846 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607634787] [2022-02-19 22:11:05,846 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607634787] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 22:11:05,846 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-19 22:11:05,846 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-19 22:11:05,847 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007770632] [2022-02-19 22:11:05,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 22:11:05,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-19 22:11:05,847 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:11:05,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-19 22:11:05,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-19 22:11:05,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:11:05,848 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:11:05,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 22:11:05,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:05,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:05,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:05,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:05,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:11:05,959 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 695 transitions and produced 427 states. [2022-02-19 22:11:05,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:05,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:05,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:05,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:05,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:05,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-19 22:11:05,960 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 11 more)] === [2022-02-19 22:11:05,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:11:05,961 INFO L85 PathProgramCache]: Analyzing trace with hash -796215080, now seen corresponding path program 1 times [2022-02-19 22:11:05,961 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:11:05,961 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69199349] [2022-02-19 22:11:05,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:11:05,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:11:05,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:11:05,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:11:05,998 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:11:05,999 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69199349] [2022-02-19 22:11:05,999 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69199349] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 22:11:05,999 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-19 22:11:05,999 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-19 22:11:05,999 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329371837] [2022-02-19 22:11:05,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 22:11:05,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-19 22:11:06,000 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:11:06,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-19 22:11:06,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-19 22:11:06,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:11:06,007 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:11:06,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 22:11:06,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:06,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:06,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:06,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:06,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:06,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:11:06,092 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 603 transitions and produced 380 states. [2022-02-19 22:11:06,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:06,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:06,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:06,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:06,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:06,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:06,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-19 22:11:06,094 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 11 more)] === [2022-02-19 22:11:06,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:11:06,094 INFO L85 PathProgramCache]: Analyzing trace with hash -643469032, now seen corresponding path program 1 times [2022-02-19 22:11:06,094 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:11:06,094 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725225271] [2022-02-19 22:11:06,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:11:06,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:11:06,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:11:06,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:11:06,112 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:11:06,113 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725225271] [2022-02-19 22:11:06,113 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725225271] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 22:11:06,113 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-19 22:11:06,113 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-19 22:11:06,113 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592124980] [2022-02-19 22:11:06,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 22:11:06,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-19 22:11:06,114 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:11:06,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-19 22:11:06,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-19 22:11:06,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:11:06,114 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:11:06,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 22:11:06,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:06,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:06,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:06,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:06,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:06,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:06,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:11:06,250 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 603 transitions and produced 379 states. [2022-02-19 22:11:06,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:06,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:06,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:06,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:06,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:06,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:06,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:06,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-19 22:11:06,252 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 11 more)] === [2022-02-19 22:11:06,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:11:06,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1070712152, now seen corresponding path program 1 times [2022-02-19 22:11:06,253 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:11:06,253 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199765442] [2022-02-19 22:11:06,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:11:06,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:11:06,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:11:07,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:11:07,413 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:11:07,414 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199765442] [2022-02-19 22:11:07,414 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199765442] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 22:11:07,414 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-19 22:11:07,414 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-19 22:11:07,414 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602658152] [2022-02-19 22:11:07,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 22:11:07,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-19 22:11:07,414 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:11:07,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-19 22:11:07,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=133, Unknown=0, NotChecked=0, Total=240 [2022-02-19 22:11:07,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:11:07,415 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:11:07,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.8) internal successors, (57), 16 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 22:11:07,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:07,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:07,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:07,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:07,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:07,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:07,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:11:07,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.