/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-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe020_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-09 16:50:20,874 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-09 16:50:20,876 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-09 16:50:20,901 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-09 16:50:20,930 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-09 16:50:20,931 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-09 16:50:20,932 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-09 16:50:20,938 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-FA-NoLbe.epf [2021-07-09 16:50:20,976 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-09 16:50:20,976 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-09 16:50:20,977 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-09 16:50:20,977 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-09 16:50:20,978 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-09 16:50:20,978 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-09 16:50:20,978 INFO L138 SettingsManager]: * Use SBE=true [2021-07-09 16:50:20,978 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-09 16:50:20,978 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-09 16:50:20,979 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-09 16:50:20,979 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-09 16:50:20,979 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-09 16:50:20,979 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-09 16:50:20,979 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-09 16:50:20,979 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-09 16:50:20,979 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-09 16:50:20,980 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-09 16:50:20,980 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-09 16:50:20,980 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-09 16:50:20,980 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-09 16:50:20,980 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-09 16:50:20,980 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-09 16:50:20,981 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-09 16:50:20,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 16:50:20,981 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-09 16:50:20,981 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-09 16:50:20,981 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-09 16:50:20,981 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-09 16:50:20,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-09 16:50:20,982 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-09 16:50:20,982 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-09 16:50:20,982 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-09 16:50:21,266 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-09 16:50:21,286 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-09 16:50:21,290 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-09 16:50:21,291 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-09 16:50:21,293 INFO L275 PluginConnector]: CDTParser initialized [2021-07-09 16:50:21,294 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe020_tso.oepc.i [2021-07-09 16:50:21,363 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aabe8115e/9662b0b94a9e4fb485a9b9d7ac056281/FLAGcd1b29e84 [2021-07-09 16:50:21,945 INFO L306 CDTParser]: Found 1 translation units. [2021-07-09 16:50:21,945 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_tso.oepc.i [2021-07-09 16:50:21,962 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aabe8115e/9662b0b94a9e4fb485a9b9d7ac056281/FLAGcd1b29e84 [2021-07-09 16:50:22,350 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aabe8115e/9662b0b94a9e4fb485a9b9d7ac056281 [2021-07-09 16:50:22,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-09 16:50:22,354 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-09 16:50:22,355 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-09 16:50:22,355 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-09 16:50:22,360 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-09 16:50:22,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 04:50:22" (1/1) ... [2021-07-09 16:50:22,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cec2b43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:22, skipping insertion in model container [2021-07-09 16:50:22,362 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 04:50:22" (1/1) ... [2021-07-09 16:50:22,372 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-09 16:50:22,408 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-09 16:50:22,593 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_tso.oepc.i[950,963] [2021-07-09 16:50:22,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 16:50:22,776 INFO L203 MainTranslator]: Completed pre-run [2021-07-09 16:50:22,786 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_tso.oepc.i[950,963] [2021-07-09 16:50:22,817 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 16:50:22,846 INFO L208 MainTranslator]: Completed translation [2021-07-09 16:50:22,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:22 WrapperNode [2021-07-09 16:50:22,846 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-09 16:50:22,847 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-09 16:50:22,847 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-09 16:50:22,848 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-09 16:50:22,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:22" (1/1) ... [2021-07-09 16:50:22,880 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:22" (1/1) ... [2021-07-09 16:50:22,905 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-09 16:50:22,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-09 16:50:22,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-09 16:50:22,906 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-09 16:50:22,912 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:22" (1/1) ... [2021-07-09 16:50:22,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:22" (1/1) ... [2021-07-09 16:50:22,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:22" (1/1) ... [2021-07-09 16:50:22,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:22" (1/1) ... [2021-07-09 16:50:22,935 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:22" (1/1) ... [2021-07-09 16:50:22,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:22" (1/1) ... [2021-07-09 16:50:22,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:22" (1/1) ... [2021-07-09 16:50:22,940 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-09 16:50:22,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-09 16:50:22,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-09 16:50:22,941 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-09 16:50:22,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 16:50:23,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-09 16:50:23,006 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-09 16:50:23,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-09 16:50:23,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-09 16:50:23,007 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-07-09 16:50:23,009 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-07-09 16:50:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-07-09 16:50:23,009 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-07-09 16:50:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-07-09 16:50:23,009 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-07-09 16:50:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-09 16:50:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-09 16:50:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-09 16:50:23,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-09 16:50:23,011 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-09 16:50:23,449 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-09 16:50:23,450 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-07-09 16:50:23,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 04:50:23 BoogieIcfgContainer [2021-07-09 16:50:23,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-09 16:50:23,454 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-09 16:50:23,454 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-09 16:50:23,457 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-09 16:50:23,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.07 04:50:22" (1/3) ... [2021-07-09 16:50:23,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18cea8b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 04:50:23, skipping insertion in model container [2021-07-09 16:50:23,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:22" (2/3) ... [2021-07-09 16:50:23,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18cea8b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 04:50:23, skipping insertion in model container [2021-07-09 16:50:23,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 04:50:23" (3/3) ... [2021-07-09 16:50:23,460 INFO L111 eAbstractionObserver]: Analyzing ICFG safe020_tso.oepc.i [2021-07-09 16:50:23,465 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-09 16:50:23,465 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-09 16:50:23,466 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-09 16:50:23,466 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-09 16:50:23,500 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,500 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,501 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,501 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,501 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,501 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,501 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,501 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,502 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,502 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,502 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,502 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,503 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,503 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,503 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,503 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,503 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,503 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,504 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,504 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,506 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,506 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,507 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,507 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,507 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,510 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,510 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,510 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,511 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,511 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,511 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,512 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,514 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,514 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,514 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,514 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,516 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,517 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,517 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,517 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,522 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,523 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,523 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,523 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,525 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,525 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,526 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,526 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:23,528 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-09 16:50:23,548 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-07-09 16:50:23,586 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 16:50:23,587 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 16:50:23,587 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 16:50:23,587 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 16:50:23,587 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 16:50:23,587 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 16:50:23,587 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 16:50:23,588 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-09 16:50:23,604 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 90 places, 82 transitions, 179 flow [2021-07-09 16:50:23,809 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4774 states, 4773 states have (on average 3.4670018856065368) internal successors, (16548), 4773 states have internal predecessors, (16548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:50:23,831 INFO L276 IsEmpty]: Start isEmpty. Operand has 4774 states, 4773 states have (on average 3.4670018856065368) internal successors, (16548), 4773 states have internal predecessors, (16548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:50:23,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-07-09 16:50:23,861 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:50:23,862 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:50:23,863 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:50:23,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:50:23,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1333187383, now seen corresponding path program 1 times [2021-07-09 16:50:23,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:50:23,878 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982247983] [2021-07-09 16:50:23,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:50:24,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:50:24,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:50:24,349 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:50:24,349 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982247983] [2021-07-09 16:50:24,350 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982247983] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:50:24,350 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:50:24,350 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 16:50:24,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41226282] [2021-07-09 16:50:24,356 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 16:50:24,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:50:24,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 16:50:24,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 16:50:24,394 INFO L87 Difference]: Start difference. First operand has 4774 states, 4773 states have (on average 3.4670018856065368) internal successors, (16548), 4773 states have internal predecessors, (16548), 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) Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:50:24,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:50:24,707 INFO L93 Difference]: Finished difference Result 5734 states and 19340 transitions. [2021-07-09 16:50:24,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 16:50:24,709 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) Word has length 48 [2021-07-09 16:50:24,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:50:24,751 INFO L225 Difference]: With dead ends: 5734 [2021-07-09 16:50:24,751 INFO L226 Difference]: Without dead ends: 4264 [2021-07-09 16:50:24,753 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 248.0ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:50:24,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4264 states. [2021-07-09 16:50:24,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4264 to 4264. [2021-07-09 16:50:24,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4264 states, 4263 states have (on average 3.373915083274689) internal successors, (14383), 4263 states have internal predecessors, (14383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:50:25,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4264 states to 4264 states and 14383 transitions. [2021-07-09 16:50:25,004 INFO L78 Accepts]: Start accepts. Automaton has 4264 states and 14383 transitions. Word has length 48 [2021-07-09 16:50:25,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:50:25,005 INFO L482 AbstractCegarLoop]: Abstraction has 4264 states and 14383 transitions. [2021-07-09 16:50:25,006 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:50:25,006 INFO L276 IsEmpty]: Start isEmpty. Operand 4264 states and 14383 transitions. [2021-07-09 16:50:25,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-07-09 16:50:25,015 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:50:25,015 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:50:25,016 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-09 16:50:25,016 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:50:25,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:50:25,017 INFO L82 PathProgramCache]: Analyzing trace with hash 622542102, now seen corresponding path program 1 times [2021-07-09 16:50:25,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:50:25,017 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982104597] [2021-07-09 16:50:25,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:50:25,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:50:25,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:50:25,131 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:50:25,131 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982104597] [2021-07-09 16:50:25,131 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982104597] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:50:25,131 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:50:25,131 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 16:50:25,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907589836] [2021-07-09 16:50:25,133 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 16:50:25,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:50:25,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 16:50:25,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 16:50:25,134 INFO L87 Difference]: Start difference. First operand 4264 states and 14383 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:50:25,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:50:25,377 INFO L93 Difference]: Finished difference Result 4744 states and 15857 transitions. [2021-07-09 16:50:25,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 16:50:25,378 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-07-09 16:50:25,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:50:25,443 INFO L225 Difference]: With dead ends: 4744 [2021-07-09 16:50:25,443 INFO L226 Difference]: Without dead ends: 3904 [2021-07-09 16:50:25,444 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 191.9ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:50:25,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3904 states. [2021-07-09 16:50:25,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3904 to 3904. [2021-07-09 16:50:25,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3904 states, 3903 states have (on average 3.3499871893415323) internal successors, (13075), 3903 states have internal predecessors, (13075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:50:25,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3904 states to 3904 states and 13075 transitions. [2021-07-09 16:50:25,611 INFO L78 Accepts]: Start accepts. Automaton has 3904 states and 13075 transitions. Word has length 50 [2021-07-09 16:50:25,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:50:25,612 INFO L482 AbstractCegarLoop]: Abstraction has 3904 states and 13075 transitions. [2021-07-09 16:50:25,613 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:50:25,613 INFO L276 IsEmpty]: Start isEmpty. Operand 3904 states and 13075 transitions. [2021-07-09 16:50:25,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-07-09 16:50:25,625 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:50:25,625 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:50:25,626 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-09 16:50:25,626 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:50:25,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:50:25,634 INFO L82 PathProgramCache]: Analyzing trace with hash -242345727, now seen corresponding path program 1 times [2021-07-09 16:50:25,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:50:25,634 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063220819] [2021-07-09 16:50:25,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:50:25,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:50:25,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:50:25,862 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:50:25,862 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063220819] [2021-07-09 16:50:25,862 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063220819] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:50:25,862 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:50:25,862 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 16:50:25,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441820066] [2021-07-09 16:50:25,863 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 16:50:25,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:50:25,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 16:50:25,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 16:50:25,866 INFO L87 Difference]: Start difference. First operand 3904 states and 13075 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:50:26,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:50:26,096 INFO L93 Difference]: Finished difference Result 6448 states and 21303 transitions. [2021-07-09 16:50:26,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 16:50:26,097 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-07-09 16:50:26,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:50:26,126 INFO L225 Difference]: With dead ends: 6448 [2021-07-09 16:50:26,126 INFO L226 Difference]: Without dead ends: 4336 [2021-07-09 16:50:26,127 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 248.9ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:50:26,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4336 states. [2021-07-09 16:50:26,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4336 to 3616. [2021-07-09 16:50:26,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3616 states, 3615 states have (on average 3.265006915629322) internal successors, (11803), 3615 states have internal predecessors, (11803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:50:26,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3616 states to 3616 states and 11803 transitions. [2021-07-09 16:50:26,295 INFO L78 Accepts]: Start accepts. Automaton has 3616 states and 11803 transitions. Word has length 51 [2021-07-09 16:50:26,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:50:26,297 INFO L482 AbstractCegarLoop]: Abstraction has 3616 states and 11803 transitions. [2021-07-09 16:50:26,297 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:50:26,297 INFO L276 IsEmpty]: Start isEmpty. Operand 3616 states and 11803 transitions. [2021-07-09 16:50:26,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-07-09 16:50:26,307 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:50:26,307 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:50:26,308 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-09 16:50:26,308 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:50:26,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:50:26,309 INFO L82 PathProgramCache]: Analyzing trace with hash -1509932971, now seen corresponding path program 1 times [2021-07-09 16:50:26,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:50:26,310 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293315440] [2021-07-09 16:50:26,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:50:26,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:50:26,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:50:26,488 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:50:26,488 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293315440] [2021-07-09 16:50:26,488 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293315440] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:50:26,488 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:50:26,488 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:50:26,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438498792] [2021-07-09 16:50:26,489 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:50:26,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:50:26,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:50:26,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:50:26,491 INFO L87 Difference]: Start difference. First operand 3616 states and 11803 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:50:26,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:50:26,774 INFO L93 Difference]: Finished difference Result 5036 states and 16299 transitions. [2021-07-09 16:50:26,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 16:50:26,775 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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) Word has length 52 [2021-07-09 16:50:26,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:50:26,793 INFO L225 Difference]: With dead ends: 5036 [2021-07-09 16:50:26,793 INFO L226 Difference]: Without dead ends: 2756 [2021-07-09 16:50:26,793 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 252.4ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-07-09 16:50:26,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2756 states. [2021-07-09 16:50:26,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2756 to 2756. [2021-07-09 16:50:26,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2756 states, 2755 states have (on average 3.162613430127042) internal successors, (8713), 2755 states have internal predecessors, (8713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:50:26,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2756 states to 2756 states and 8713 transitions. [2021-07-09 16:50:26,870 INFO L78 Accepts]: Start accepts. Automaton has 2756 states and 8713 transitions. Word has length 52 [2021-07-09 16:50:26,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:50:26,871 INFO L482 AbstractCegarLoop]: Abstraction has 2756 states and 8713 transitions. [2021-07-09 16:50:26,871 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:50:26,871 INFO L276 IsEmpty]: Start isEmpty. Operand 2756 states and 8713 transitions. [2021-07-09 16:50:26,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-07-09 16:50:26,878 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:50:26,878 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:50:26,878 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-09 16:50:26,878 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:50:26,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:50:26,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1374435990, now seen corresponding path program 1 times [2021-07-09 16:50:26,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:50:26,879 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991219104] [2021-07-09 16:50:26,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:50:26,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:50:27,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:50:27,006 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:50:27,006 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991219104] [2021-07-09 16:50:27,006 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991219104] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:50:27,006 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:50:27,006 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 16:50:27,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088842712] [2021-07-09 16:50:27,007 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 16:50:27,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:50:27,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 16:50:27,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 16:50:27,008 INFO L87 Difference]: Start difference. First operand 2756 states and 8713 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:50:27,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:50:27,200 INFO L93 Difference]: Finished difference Result 3468 states and 10847 transitions. [2021-07-09 16:50:27,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 16:50:27,201 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 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) Word has length 54 [2021-07-09 16:50:27,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:50:27,250 INFO L225 Difference]: With dead ends: 3468 [2021-07-09 16:50:27,250 INFO L226 Difference]: Without dead ends: 2572 [2021-07-09 16:50:27,251 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 159.4ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:50:27,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2572 states. [2021-07-09 16:50:27,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2572 to 2572. [2021-07-09 16:50:27,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2572 states, 2571 states have (on average 3.1221314663555035) internal successors, (8027), 2571 states have internal predecessors, (8027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:50:27,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2572 states to 2572 states and 8027 transitions. [2021-07-09 16:50:27,319 INFO L78 Accepts]: Start accepts. Automaton has 2572 states and 8027 transitions. Word has length 54 [2021-07-09 16:50:27,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:50:27,320 INFO L482 AbstractCegarLoop]: Abstraction has 2572 states and 8027 transitions. [2021-07-09 16:50:27,320 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:50:27,320 INFO L276 IsEmpty]: Start isEmpty. Operand 2572 states and 8027 transitions. [2021-07-09 16:50:27,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-07-09 16:50:27,327 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:50:27,327 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:50:27,327 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-09 16:50:27,327 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:50:27,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:50:27,328 INFO L82 PathProgramCache]: Analyzing trace with hash 1728353214, now seen corresponding path program 1 times [2021-07-09 16:50:27,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:50:27,328 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633276001] [2021-07-09 16:50:27,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:50:27,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:50:27,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:50:27,419 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:50:27,419 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633276001] [2021-07-09 16:50:27,419 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633276001] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:50:27,420 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:50:27,420 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:50:27,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740779593] [2021-07-09 16:50:27,420 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:50:27,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:50:27,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:50:27,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:50:27,421 INFO L87 Difference]: Start difference. First operand 2572 states and 8027 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 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) [2021-07-09 16:50:27,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:50:27,562 INFO L93 Difference]: Finished difference Result 2776 states and 8466 transitions. [2021-07-09 16:50:27,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 16:50:27,563 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 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) Word has length 55 [2021-07-09 16:50:27,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:50:27,570 INFO L225 Difference]: With dead ends: 2776 [2021-07-09 16:50:27,571 INFO L226 Difference]: Without dead ends: 2008 [2021-07-09 16:50:27,571 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 119.1ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-07-09 16:50:27,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2008 states. [2021-07-09 16:50:27,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2008 to 2008. [2021-07-09 16:50:27,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2008 states, 2007 states have (on average 3.0064773293472844) internal successors, (6034), 2007 states have internal predecessors, (6034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:50:27,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2008 states to 2008 states and 6034 transitions. [2021-07-09 16:50:27,649 INFO L78 Accepts]: Start accepts. Automaton has 2008 states and 6034 transitions. Word has length 55 [2021-07-09 16:50:27,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:50:27,650 INFO L482 AbstractCegarLoop]: Abstraction has 2008 states and 6034 transitions. [2021-07-09 16:50:27,651 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 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) [2021-07-09 16:50:27,651 INFO L276 IsEmpty]: Start isEmpty. Operand 2008 states and 6034 transitions. [2021-07-09 16:50:27,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-07-09 16:50:27,656 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:50:27,656 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:50:27,657 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-09 16:50:27,657 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:50:27,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:50:27,658 INFO L82 PathProgramCache]: Analyzing trace with hash -1012911809, now seen corresponding path program 1 times [2021-07-09 16:50:27,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:50:27,661 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060299076] [2021-07-09 16:50:27,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:50:27,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:50:27,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:50:27,759 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:50:27,759 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060299076] [2021-07-09 16:50:27,759 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060299076] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:50:27,759 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:50:27,759 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 16:50:27,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545721871] [2021-07-09 16:50:27,760 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 16:50:27,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:50:27,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 16:50:27,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-07-09 16:50:27,761 INFO L87 Difference]: Start difference. First operand 2008 states and 6034 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 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) [2021-07-09 16:50:27,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:50:27,917 INFO L93 Difference]: Finished difference Result 1765 states and 5170 transitions. [2021-07-09 16:50:27,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 16:50:27,918 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 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) Word has length 57 [2021-07-09 16:50:27,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:50:27,921 INFO L225 Difference]: With dead ends: 1765 [2021-07-09 16:50:27,921 INFO L226 Difference]: Without dead ends: 848 [2021-07-09 16:50:27,922 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 121.9ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:50:27,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2021-07-09 16:50:27,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 848. [2021-07-09 16:50:27,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 847 states have (on average 2.855962219598583) internal successors, (2419), 847 states have internal predecessors, (2419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:50:27,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 2419 transitions. [2021-07-09 16:50:27,940 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 2419 transitions. Word has length 57 [2021-07-09 16:50:27,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:50:27,940 INFO L482 AbstractCegarLoop]: Abstraction has 848 states and 2419 transitions. [2021-07-09 16:50:27,941 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 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) [2021-07-09 16:50:27,941 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 2419 transitions. [2021-07-09 16:50:27,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-07-09 16:50:27,943 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:50:27,943 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:50:27,943 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-09 16:50:27,943 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:50:27,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:50:27,944 INFO L82 PathProgramCache]: Analyzing trace with hash -793960868, now seen corresponding path program 1 times [2021-07-09 16:50:27,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:50:27,944 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913051029] [2021-07-09 16:50:27,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:50:27,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:50:28,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:50:28,041 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:50:28,041 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913051029] [2021-07-09 16:50:28,041 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913051029] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:50:28,041 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:50:28,042 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:50:28,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176866726] [2021-07-09 16:50:28,046 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:50:28,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:50:28,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:50:28,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:50:28,047 INFO L87 Difference]: Start difference. First operand 848 states and 2419 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:50:28,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:50:28,113 INFO L93 Difference]: Finished difference Result 794 states and 2257 transitions. [2021-07-09 16:50:28,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 16:50:28,113 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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) Word has length 59 [2021-07-09 16:50:28,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:50:28,113 INFO L225 Difference]: With dead ends: 794 [2021-07-09 16:50:28,113 INFO L226 Difference]: Without dead ends: 0 [2021-07-09 16:50:28,114 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 79.8ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:50:28,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-09 16:50:28,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-09 16:50:28,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:50:28,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-09 16:50:28,114 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2021-07-09 16:50:28,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:50:28,115 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-09 16:50:28,115 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:50:28,115 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-09 16:50:28,115 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-09 16:50:28,115 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-09 16:50:28,117 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-09 16:50:28,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.07 04:50:28 BasicIcfg [2021-07-09 16:50:28,119 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-09 16:50:28,120 INFO L168 Benchmark]: Toolchain (without parser) took 5766.17 ms. Allocated memory was 183.5 MB in the beginning and 389.0 MB in the end (delta: 205.5 MB). Free memory was 144.5 MB in the beginning and 176.5 MB in the end (delta: -31.9 MB). Peak memory consumption was 174.1 MB. Max. memory is 8.0 GB. [2021-07-09 16:50:28,121 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 183.5 MB. Free memory is still 163.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-09 16:50:28,121 INFO L168 Benchmark]: CACSL2BoogieTranslator took 491.26 ms. Allocated memory is still 183.5 MB. Free memory was 144.4 MB in the beginning and 156.6 MB in the end (delta: -12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-07-09 16:50:28,121 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.80 ms. Allocated memory is still 183.5 MB. Free memory was 156.6 MB in the beginning and 154.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-07-09 16:50:28,122 INFO L168 Benchmark]: Boogie Preprocessor took 33.97 ms. Allocated memory is still 183.5 MB. Free memory was 154.1 MB in the beginning and 152.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-09 16:50:28,122 INFO L168 Benchmark]: RCFGBuilder took 512.19 ms. Allocated memory is still 183.5 MB. Free memory was 152.9 MB in the beginning and 129.3 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2021-07-09 16:50:28,122 INFO L168 Benchmark]: TraceAbstraction took 4665.62 ms. Allocated memory was 183.5 MB in the beginning and 389.0 MB in the end (delta: 205.5 MB). Free memory was 128.8 MB in the beginning and 176.5 MB in the end (delta: -47.7 MB). Peak memory consumption was 158.3 MB. Max. memory is 8.0 GB. [2021-07-09 16:50:28,124 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 183.5 MB. Free memory is still 163.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 491.26 ms. Allocated memory is still 183.5 MB. Free memory was 144.4 MB in the beginning and 156.6 MB in the end (delta: -12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 57.80 ms. Allocated memory is still 183.5 MB. Free memory was 156.6 MB in the beginning and 154.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 33.97 ms. Allocated memory is still 183.5 MB. Free memory was 154.1 MB in the beginning and 152.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 512.19 ms. Allocated memory is still 183.5 MB. Free memory was 152.9 MB in the beginning and 129.3 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4665.62 ms. Allocated memory was 183.5 MB in the beginning and 389.0 MB in the end (delta: 205.5 MB). Free memory was 128.8 MB in the beginning and 176.5 MB in the end (delta: -47.7 MB). Peak memory consumption was 158.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 104 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4551.1ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 103.4ms, AutomataDifference: 1897.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 221.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 791 SDtfs, 1099 SDslu, 2541 SDs, 0 SdLazy, 294 SolverSat, 55 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 291.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 1421.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=4774occurred in iteration=0, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 816.9ms AutomataMinimizationTime, 8 MinimizatonAttempts, 720 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 27.9ms SsaConstructionTime, 206.1ms SatisfiabilityAnalysisTime, 1053.8ms InterpolantComputationTime, 426 NumberOfCodeBlocks, 426 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 418 ConstructedInterpolants, 0 QuantifiedInterpolants, 1150 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...