/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-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-misc-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-02 07:49:51,183 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-02 07:49:51,185 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-02 07:49:51,246 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-02 07:49:51,247 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-02 07:49:51,248 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-02 07:49:51,249 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-02 07:49:51,269 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-02 07:49:51,271 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-02 07:49:51,272 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-02 07:49:51,273 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-02 07:49:51,274 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-02 07:49:51,274 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-02 07:49:51,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-02 07:49:51,276 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-02 07:49:51,277 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-02 07:49:51,278 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-02 07:49:51,278 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-02 07:49:51,280 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-02 07:49:51,281 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-02 07:49:51,282 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-02 07:49:51,292 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-02 07:49:51,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-02 07:49:51,294 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-02 07:49:51,297 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-02 07:49:51,299 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-02 07:49:51,300 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-02 07:49:51,305 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-02 07:49:51,307 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-02 07:49:51,308 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-02 07:49:51,308 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-02 07:49:51,308 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-02 07:49:51,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-02 07:49:51,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-02 07:49:51,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-02 07:49:51,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-02 07:49:51,314 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-MCRwithoutDepranks-Lazy.epf [2022-03-02 07:49:51,349 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-02 07:49:51,349 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-02 07:49:51,349 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-02 07:49:51,350 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-02 07:49:51,350 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-02 07:49:51,350 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-02 07:49:51,355 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-02 07:49:51,356 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-02 07:49:51,356 INFO L138 SettingsManager]: * Use SBE=true [2022-03-02 07:49:51,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-02 07:49:51,357 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-02 07:49:51,357 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-02 07:49:51,357 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-02 07:49:51,357 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-02 07:49:51,357 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-02 07:49:51,357 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-02 07:49:51,357 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-02 07:49:51,358 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-02 07:49:51,358 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-02 07:49:51,358 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-02 07:49:51,358 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-02 07:49:51,358 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-02 07:49:51,358 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-02 07:49:51,359 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-02 07:49:51,359 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-02 07:49:51,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 07:49:51,359 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-02 07:49:51,359 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-02 07:49:51,359 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-02 07:49:51,359 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-02 07:49:51,360 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-02 07:49:51,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-02 07:49:51,360 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-02 07:49:51,360 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-02 07:49:51,360 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-02 07:49:51,360 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-02 07:49:51,360 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-02 07:49:51,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-02 07:49:51,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-02 07:49:51,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-02 07:49:51,620 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-02 07:49:51,621 INFO L275 PluginConnector]: CDTParser initialized [2022-03-02 07:49:51,622 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-3.wvr.c [2022-03-02 07:49:51,691 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbb1683f0/a812e2f2092d4e43842b73e1def36d29/FLAG3efceb711 [2022-03-02 07:49:52,166 INFO L306 CDTParser]: Found 1 translation units. [2022-03-02 07:49:52,166 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-3.wvr.c [2022-03-02 07:49:52,175 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbb1683f0/a812e2f2092d4e43842b73e1def36d29/FLAG3efceb711 [2022-03-02 07:49:52,540 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbb1683f0/a812e2f2092d4e43842b73e1def36d29 [2022-03-02 07:49:52,542 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-02 07:49:52,545 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-02 07:49:52,548 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-02 07:49:52,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-02 07:49:52,551 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-02 07:49:52,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.03 07:49:52" (1/1) ... [2022-03-02 07:49:52,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37940af0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 07:49:52, skipping insertion in model container [2022-03-02 07:49:52,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.03 07:49:52" (1/1) ... [2022-03-02 07:49:52,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-02 07:49:52,576 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-02 07:49:52,862 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-3.wvr.c[2410,2423] [2022-03-02 07:49:52,866 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-02 07:49:52,872 INFO L203 MainTranslator]: Completed pre-run [2022-03-02 07:49:52,907 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-3.wvr.c[2410,2423] [2022-03-02 07:49:52,908 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-02 07:49:52,923 INFO L208 MainTranslator]: Completed translation [2022-03-02 07:49:52,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 07:49:52 WrapperNode [2022-03-02 07:49:52,924 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-02 07:49:52,926 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-02 07:49:52,926 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-02 07:49:52,927 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-02 07:49:52,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 07:49:52" (1/1) ... [2022-03-02 07:49:52,950 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 07:49:52" (1/1) ... [2022-03-02 07:49:52,973 INFO L137 Inliner]: procedures = 21, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 53 [2022-03-02 07:49:52,973 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-02 07:49:52,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-02 07:49:52,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-02 07:49:52,975 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-02 07:49:52,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 07:49:52" (1/1) ... [2022-03-02 07:49:52,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 07:49:52" (1/1) ... [2022-03-02 07:49:52,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 07:49:52" (1/1) ... [2022-03-02 07:49:52,988 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 07:49:52" (1/1) ... [2022-03-02 07:49:53,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 07:49:52" (1/1) ... [2022-03-02 07:49:53,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 07:49:52" (1/1) ... [2022-03-02 07:49:53,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 07:49:52" (1/1) ... [2022-03-02 07:49:53,009 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-02 07:49:53,011 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-02 07:49:53,011 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-02 07:49:53,011 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-02 07:49:53,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 07:49:52" (1/1) ... [2022-03-02 07:49:53,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 07:49:53,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 07:49:53,057 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) [2022-03-02 07:49:53,070 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 [2022-03-02 07:49:53,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-02 07:49:53,103 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-02 07:49:53,104 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-02 07:49:53,104 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-02 07:49:53,104 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-02 07:49:53,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-02 07:49:53,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-02 07:49:53,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-02 07:49:53,106 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-02 07:49:53,106 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-02 07:49:53,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-02 07:49:53,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-02 07:49:53,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-02 07:49:53,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-02 07:49:53,109 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-02 07:49:53,211 INFO L234 CfgBuilder]: Building ICFG [2022-03-02 07:49:53,213 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-02 07:49:53,415 INFO L275 CfgBuilder]: Performing block encoding [2022-03-02 07:49:53,452 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-02 07:49:53,452 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-03-02 07:49:53,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 07:49:53 BoogieIcfgContainer [2022-03-02 07:49:53,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-02 07:49:53,461 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-02 07:49:53,461 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-02 07:49:53,464 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-02 07:49:53,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.03 07:49:52" (1/3) ... [2022-03-02 07:49:53,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73cd835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.03 07:49:53, skipping insertion in model container [2022-03-02 07:49:53,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 07:49:52" (2/3) ... [2022-03-02 07:49:53,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73cd835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.03 07:49:53, skipping insertion in model container [2022-03-02 07:49:53,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 07:49:53" (3/3) ... [2022-03-02 07:49:53,467 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-misc-3.wvr.c [2022-03-02 07:49:53,476 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-02 07:49:53,476 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-02 07:49:53,476 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-02 07:49:53,476 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-02 07:49:53,542 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:49:53,544 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:49:53,544 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:49:53,544 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:49:53,545 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:49:53,545 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:49:53,545 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:49:53,545 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:49:53,546 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:49:53,546 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:49:53,547 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:49:53,547 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:49:53,547 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:49:53,547 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:49:53,547 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:49:53,548 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:49:53,548 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:49:53,548 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:49:53,549 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:49:53,549 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:49:53,550 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:49:53,550 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:49:53,550 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:49:53,551 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:49:53,551 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:49:53,551 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:49:53,551 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:49:53,551 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:49:53,554 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:49:53,555 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:49:53,560 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:49:53,560 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:49:53,560 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:49:53,562 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:49:53,562 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:49:53,562 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:49:53,571 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-02 07:49:53,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-02 07:49:53,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 07:49:53,633 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) [2022-03-02 07:49:53,653 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 [2022-03-02 07:49:53,668 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-02 07:49:53,677 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=true [2022-03-02 07:49:53,677 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-02 07:49:53,768 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 108 transitions and produced 109 states. [2022-03-02 07:49:53,770 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 07:49:53,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 07:49:53,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1492245706, now seen corresponding path program 1 times [2022-03-02 07:49:53,791 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 07:49:53,792 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143556309] [2022-03-02 07:49:53,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 07:49:53,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 07:49:53,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 07:49:54,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 07:49:54,013 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 07:49:54,013 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143556309] [2022-03-02 07:49:54,015 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143556309] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-02 07:49:54,015 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-02 07:49:54,016 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-02 07:49:54,018 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287406702] [2022-03-02 07:49:54,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-02 07:49:54,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-02 07:49:54,023 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 07:49:54,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-02 07:49:54,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-02 07:49:54,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:49:54,052 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 07:49:54,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 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) [2022-03-02 07:49:54,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:49:54,127 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 108 transitions and produced 109 states. [2022-03-02 07:49:54,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:49:54,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-02 07:49:54,129 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 07:49:54,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 07:49:54,131 INFO L85 PathProgramCache]: Analyzing trace with hash -91845648, now seen corresponding path program 1 times [2022-03-02 07:49:54,132 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 07:49:54,132 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822644943] [2022-03-02 07:49:54,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 07:49:54,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 07:49:54,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 07:49:54,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 07:49:54,305 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 07:49:54,306 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822644943] [2022-03-02 07:49:54,306 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822644943] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-02 07:49:54,306 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-02 07:49:54,306 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-02 07:49:54,306 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061117101] [2022-03-02 07:49:54,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-02 07:49:54,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-02 07:49:54,308 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 07:49:54,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-02 07:49:54,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-02 07:49:54,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:49:54,310 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 07:49:54,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 07:49:54,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:49:54,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:49:54,394 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 145 transitions and produced 146 states. [2022-03-02 07:49:54,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:49:54,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 07:49:54,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-02 07:49:54,396 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 07:49:54,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 07:49:54,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1627471592, now seen corresponding path program 1 times [2022-03-02 07:49:54,398 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 07:49:54,398 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045006607] [2022-03-02 07:49:54,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 07:49:54,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 07:49:54,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 07:49:54,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-02 07:49:54,483 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 07:49:54,483 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045006607] [2022-03-02 07:49:54,483 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045006607] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-02 07:49:54,484 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-02 07:49:54,484 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-02 07:49:54,484 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524191141] [2022-03-02 07:49:54,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-02 07:49:54,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-02 07:49:54,485 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 07:49:54,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-02 07:49:54,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-02 07:49:54,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:49:54,486 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 07:49:54,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2022-03-02 07:49:54,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:49:54,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 07:49:54,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:49:54,591 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 166 transitions and produced 167 states. [2022-03-02 07:49:54,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:49:54,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 07:49:54,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 07:49:54,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-02 07:49:54,605 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 07:49:54,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 07:49:54,606 INFO L85 PathProgramCache]: Analyzing trace with hash 851856496, now seen corresponding path program 1 times [2022-03-02 07:49:54,606 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 07:49:54,607 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200492059] [2022-03-02 07:49:54,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 07:49:54,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 07:49:54,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 07:49:54,764 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-02 07:49:54,765 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 07:49:54,766 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200492059] [2022-03-02 07:49:54,769 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200492059] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-02 07:49:54,769 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-02 07:49:54,769 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-02 07:49:54,769 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480186928] [2022-03-02 07:49:54,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-02 07:49:54,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-02 07:49:54,771 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 07:49:54,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-02 07:49:54,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-02 07:49:54,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:49:54,772 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 07:49:54,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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) [2022-03-02 07:49:54,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:49:54,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 07:49:54,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 07:49:54,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:49:55,367 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 190 transitions and produced 191 states. [2022-03-02 07:49:55,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:49:55,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 07:49:55,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 07:49:55,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-02 07:49:55,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-02 07:49:55,370 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 07:49:55,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 07:49:55,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1553588947, now seen corresponding path program 1 times [2022-03-02 07:49:55,371 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 07:49:55,371 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416271218] [2022-03-02 07:49:55,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 07:49:55,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 07:49:55,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 07:49:55,498 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-02 07:49:55,498 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 07:49:55,498 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416271218] [2022-03-02 07:49:55,499 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416271218] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-02 07:49:55,499 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-02 07:49:55,499 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-02 07:49:55,499 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316283697] [2022-03-02 07:49:55,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-02 07:49:55,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-02 07:49:55,500 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 07:49:55,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-02 07:49:55,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-02 07:49:55,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:49:55,501 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 07:49:55,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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) [2022-03-02 07:49:55,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:49:55,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 07:49:55,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 07:49:55,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-02 07:49:55,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:49:55,953 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 204 transitions and produced 205 states. [2022-03-02 07:49:55,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:49:55,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 07:49:55,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 07:49:55,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-02 07:49:55,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-02 07:49:55,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-02 07:49:55,955 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 07:49:55,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 07:49:55,956 INFO L85 PathProgramCache]: Analyzing trace with hash 501930793, now seen corresponding path program 1 times [2022-03-02 07:49:55,956 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 07:49:55,956 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589396080] [2022-03-02 07:49:55,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 07:49:55,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 07:49:55,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 07:49:56,094 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-02 07:49:56,095 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 07:49:56,095 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589396080] [2022-03-02 07:49:56,095 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589396080] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 07:49:56,095 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4283974] [2022-03-02 07:49:56,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 07:49:56,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 07:49:56,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 07:49:56,133 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 07:49:56,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-02 07:49:56,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 07:49:56,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 15 conjunts are in the unsatisfiable core [2022-03-02 07:49:56,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 07:49:56,499 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-02 07:49:56,500 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 07:49:56,790 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-02 07:49:56,791 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4283974] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 07:49:56,792 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 07:49:56,792 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 7 [2022-03-02 07:49:56,793 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916815400] [2022-03-02 07:49:56,793 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 07:49:56,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-02 07:49:56,795 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 07:49:56,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-02 07:49:56,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-02 07:49:56,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:49:56,801 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 07:49:56,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 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) [2022-03-02 07:49:56,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:49:56,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 07:49:56,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 07:49:56,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-02 07:49:56,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-02 07:49:56,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:49:57,412 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 341 transitions and produced 342 states. [2022-03-02 07:49:57,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:49:57,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 07:49:57,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 07:49:57,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-02 07:49:57,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-02 07:49:57,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-02 07:49:57,443 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-02 07:49:57,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-03-02 07:49:57,632 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 07:49:57,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 07:49:57,632 INFO L85 PathProgramCache]: Analyzing trace with hash -2094000957, now seen corresponding path program 2 times [2022-03-02 07:49:57,632 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 07:49:57,633 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716414214] [2022-03-02 07:49:57,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 07:49:57,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 07:49:57,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 07:49:57,737 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-02 07:49:57,737 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 07:49:57,738 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716414214] [2022-03-02 07:49:57,738 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716414214] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-02 07:49:57,738 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-02 07:49:57,738 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-02 07:49:57,738 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825456463] [2022-03-02 07:49:57,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-02 07:49:57,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-02 07:49:57,739 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 07:49:57,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-02 07:49:57,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-02 07:49:57,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:49:57,740 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 07:49:57,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 07:49:57,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:49:57,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 07:49:57,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 07:49:57,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-02 07:49:57,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-02 07:49:57,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-03-02 07:49:57,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.