/usr/bin/java -Xmx16000000000 -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/safe024_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 00:16:06,624 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 00:16:06,625 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 00:16:06,645 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 00:16:06,683 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 00:16:06,684 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 00:16:06,684 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 00:16:06,688 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 [2021-06-05 00:16:06,715 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 00:16:06,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 00:16:06,716 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 00:16:06,716 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 00:16:06,717 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 00:16:06,718 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 00:16:06,718 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 00:16:06,718 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 00:16:06,718 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 00:16:06,718 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 00:16:06,718 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 00:16:06,719 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 00:16:06,719 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 00:16:06,719 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 00:16:06,719 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 00:16:06,719 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 00:16:06,719 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 00:16:06,719 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 00:16:06,719 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 00:16:06,719 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 00:16:06,719 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 00:16:06,719 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 00:16:06,720 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 00:16:06,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 00:16:06,720 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 00:16:06,720 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 00:16:06,720 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 00:16:06,720 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 00:16:06,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 00:16:06,720 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 00:16:06,720 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 00:16:06,720 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 00:16:06,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 00:16:06,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 00:16:06,978 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 00:16:06,979 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 00:16:06,979 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 00:16:06,979 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i [2021-06-05 00:16:07,028 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e5f8d858/9d2b5a18772344439fd20d7d038f642f/FLAG434a72be6 [2021-06-05 00:16:07,381 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 00:16:07,381 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i [2021-06-05 00:16:07,389 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e5f8d858/9d2b5a18772344439fd20d7d038f642f/FLAG434a72be6 [2021-06-05 00:16:07,738 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e5f8d858/9d2b5a18772344439fd20d7d038f642f [2021-06-05 00:16:07,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 00:16:07,740 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 00:16:07,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 00:16:07,742 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 00:16:07,746 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 00:16:07,747 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:16:07" (1/1) ... [2021-06-05 00:16:07,747 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c58e037 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:07, skipping insertion in model container [2021-06-05 00:16:07,747 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:16:07" (1/1) ... [2021-06-05 00:16:07,752 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 00:16:07,777 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 00:16:07,900 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/safe024_tso.opt.i[949,962] [2021-06-05 00:16:08,049 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 00:16:08,055 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 00:16:08,063 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/safe024_tso.opt.i[949,962] [2021-06-05 00:16:08,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 00:16:08,135 INFO L208 MainTranslator]: Completed translation [2021-06-05 00:16:08,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:08 WrapperNode [2021-06-05 00:16:08,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 00:16:08,136 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 00:16:08,136 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 00:16:08,136 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 00:16:08,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:08" (1/1) ... [2021-06-05 00:16:08,149 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:08" (1/1) ... [2021-06-05 00:16:08,161 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 00:16:08,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 00:16:08,161 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 00:16:08,161 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 00:16:08,166 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:08" (1/1) ... [2021-06-05 00:16:08,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:08" (1/1) ... [2021-06-05 00:16:08,167 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:08" (1/1) ... [2021-06-05 00:16:08,168 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:08" (1/1) ... [2021-06-05 00:16:08,170 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:08" (1/1) ... [2021-06-05 00:16:08,171 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:08" (1/1) ... [2021-06-05 00:16:08,172 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:08" (1/1) ... [2021-06-05 00:16:08,174 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 00:16:08,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 00:16:08,174 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 00:16:08,174 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 00:16:08,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 00:16:08,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 00:16:08,233 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 00:16:08,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 00:16:08,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 00:16:08,234 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-05 00:16:08,235 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-05 00:16:08,235 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-05 00:16:08,235 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-05 00:16:08,235 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-05 00:16:08,236 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-05 00:16:08,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 00:16:08,236 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 00:16:08,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 00:16:08,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 00:16:08,237 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 00:16:08,562 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 00:16:08,562 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-05 00:16:08,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:16:08 BoogieIcfgContainer [2021-06-05 00:16:08,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 00:16:08,565 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 00:16:08,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 00:16:08,567 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 00:16:08,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 12:16:07" (1/3) ... [2021-06-05 00:16:08,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39ea039b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:16:08, skipping insertion in model container [2021-06-05 00:16:08,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:08" (2/3) ... [2021-06-05 00:16:08,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39ea039b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:16:08, skipping insertion in model container [2021-06-05 00:16:08,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:16:08" (3/3) ... [2021-06-05 00:16:08,570 INFO L111 eAbstractionObserver]: Analyzing ICFG safe024_tso.opt.i [2021-06-05 00:16:08,574 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 00:16:08,574 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 00:16:08,574 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 00:16:08,575 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 00:16:08,600 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,601 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,601 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,601 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,601 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,601 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,601 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,601 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,602 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,602 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,602 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,602 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,602 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,603 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,603 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,603 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,604 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,604 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,604 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,604 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,607 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,608 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,608 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,608 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,609 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,609 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,609 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,609 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,609 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,609 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,610 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,610 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,610 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,610 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,611 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,611 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,613 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,613 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,613 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,613 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,617 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,618 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,618 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,618 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,619 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,620 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,620 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,620 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:08,623 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 00:16:08,637 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-05 00:16:08,656 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 00:16:08,656 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 00:16:08,656 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 00:16:08,656 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 00:16:08,656 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 00:16:08,656 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 00:16:08,656 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 00:16:08,657 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 00:16:08,667 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 93 places, 85 transitions, 185 flow [2021-06-05 00:16:09,050 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9333 states, 9331 states have (on average 3.562104811917265) internal successors, (33238), 9332 states have internal predecessors, (33238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:16:09,086 INFO L276 IsEmpty]: Start isEmpty. Operand has 9333 states, 9331 states have (on average 3.562104811917265) internal successors, (33238), 9332 states have internal predecessors, (33238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:16:09,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-06-05 00:16:09,120 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:16:09,120 INFO L521 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] [2021-06-05 00:16:09,121 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:16:09,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:16:09,124 INFO L82 PathProgramCache]: Analyzing trace with hash -409076905, now seen corresponding path program 1 times [2021-06-05 00:16:09,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:16:09,130 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778007801] [2021-06-05 00:16:09,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:16:09,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:16:09,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:16:09,430 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:16:09,430 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778007801] [2021-06-05 00:16:09,431 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778007801] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:16:09,431 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:16:09,431 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:16:09,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912489848] [2021-06-05 00:16:09,434 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:16:09,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:16:09,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:16:09,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:16:09,458 INFO L87 Difference]: Start difference. First operand has 9333 states, 9331 states have (on average 3.562104811917265) internal successors, (33238), 9332 states have internal predecessors, (33238), 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 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:16:09,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:16:09,689 INFO L93 Difference]: Finished difference Result 12224 states and 42408 transitions. [2021-06-05 00:16:09,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 00:16:09,691 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 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 [2021-06-05 00:16:09,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:16:09,722 INFO L225 Difference]: With dead ends: 12224 [2021-06-05 00:16:09,722 INFO L226 Difference]: Without dead ends: 4629 [2021-06-05 00:16:09,723 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 175.3ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-05 00:16:09,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4629 states. [2021-06-05 00:16:09,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4629 to 4629. [2021-06-05 00:16:09,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4629 states, 4628 states have (on average 3.3854796888504755) internal successors, (15668), 4628 states have internal predecessors, (15668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:16:09,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4629 states to 4629 states and 15668 transitions. [2021-06-05 00:16:09,975 INFO L78 Accepts]: Start accepts. Automaton has 4629 states and 15668 transitions. Word has length 50 [2021-06-05 00:16:09,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:16:09,976 INFO L482 AbstractCegarLoop]: Abstraction has 4629 states and 15668 transitions. [2021-06-05 00:16:09,976 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:16:09,977 INFO L276 IsEmpty]: Start isEmpty. Operand 4629 states and 15668 transitions. [2021-06-05 00:16:09,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-06-05 00:16:09,984 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:16:09,984 INFO L521 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] [2021-06-05 00:16:09,985 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 00:16:09,985 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:16:09,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:16:09,985 INFO L82 PathProgramCache]: Analyzing trace with hash 109062732, now seen corresponding path program 1 times [2021-06-05 00:16:09,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:16:09,986 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026994225] [2021-06-05 00:16:09,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:16:10,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:16:10,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:16:10,139 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:16:10,139 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026994225] [2021-06-05 00:16:10,140 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026994225] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:16:10,140 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:16:10,140 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:16:10,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879108643] [2021-06-05 00:16:10,141 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:16:10,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:16:10,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:16:10,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:16:10,142 INFO L87 Difference]: Start difference. First operand 4629 states and 15668 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) [2021-06-05 00:16:10,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:16:10,342 INFO L93 Difference]: Finished difference Result 6099 states and 20484 transitions. [2021-06-05 00:16:10,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 00:16:10,343 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 [2021-06-05 00:16:10,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:16:10,358 INFO L225 Difference]: With dead ends: 6099 [2021-06-05 00:16:10,358 INFO L226 Difference]: Without dead ends: 3159 [2021-06-05 00:16:10,359 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 204.9ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-05 00:16:10,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3159 states. [2021-06-05 00:16:10,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3159 to 3159. [2021-06-05 00:16:10,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3159 states, 3158 states have (on average 3.239075364154528) internal successors, (10229), 3158 states have internal predecessors, (10229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:16:10,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3159 states to 3159 states and 10229 transitions. [2021-06-05 00:16:10,449 INFO L78 Accepts]: Start accepts. Automaton has 3159 states and 10229 transitions. Word has length 52 [2021-06-05 00:16:10,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:16:10,449 INFO L482 AbstractCegarLoop]: Abstraction has 3159 states and 10229 transitions. [2021-06-05 00:16:10,449 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) [2021-06-05 00:16:10,449 INFO L276 IsEmpty]: Start isEmpty. Operand 3159 states and 10229 transitions. [2021-06-05 00:16:10,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-06-05 00:16:10,457 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:16:10,457 INFO L521 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] [2021-06-05 00:16:10,457 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 00:16:10,458 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:16:10,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:16:10,463 INFO L82 PathProgramCache]: Analyzing trace with hash 330168165, now seen corresponding path program 1 times [2021-06-05 00:16:10,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:16:10,464 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161255294] [2021-06-05 00:16:10,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:16:10,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:16:10,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:16:10,586 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:16:10,586 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161255294] [2021-06-05 00:16:10,586 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161255294] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:16:10,586 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:16:10,586 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 00:16:10,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775932291] [2021-06-05 00:16:10,587 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 00:16:10,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:16:10,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 00:16:10,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 00:16:10,587 INFO L87 Difference]: Start difference. First operand 3159 states and 10229 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 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) [2021-06-05 00:16:10,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:16:10,783 INFO L93 Difference]: Finished difference Result 3863 states and 12379 transitions. [2021-06-05 00:16:10,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 00:16:10,783 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 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 [2021-06-05 00:16:10,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:16:10,796 INFO L225 Difference]: With dead ends: 3863 [2021-06-05 00:16:10,796 INFO L226 Difference]: Without dead ends: 2911 [2021-06-05 00:16:10,796 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 126.0ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:16:10,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2911 states. [2021-06-05 00:16:10,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2911 to 2911. [2021-06-05 00:16:10,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2911 states, 2910 states have (on average 3.1948453608247425) internal successors, (9297), 2910 states have internal predecessors, (9297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:16:10,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2911 states to 2911 states and 9297 transitions. [2021-06-05 00:16:10,859 INFO L78 Accepts]: Start accepts. Automaton has 2911 states and 9297 transitions. Word has length 55 [2021-06-05 00:16:10,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:16:10,859 INFO L482 AbstractCegarLoop]: Abstraction has 2911 states and 9297 transitions. [2021-06-05 00:16:10,860 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 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) [2021-06-05 00:16:10,860 INFO L276 IsEmpty]: Start isEmpty. Operand 2911 states and 9297 transitions. [2021-06-05 00:16:10,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-05 00:16:10,864 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:16:10,864 INFO L521 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] [2021-06-05 00:16:10,865 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 00:16:10,865 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:16:10,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:16:10,865 INFO L82 PathProgramCache]: Analyzing trace with hash 1378832078, now seen corresponding path program 1 times [2021-06-05 00:16:10,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:16:10,865 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069783013] [2021-06-05 00:16:10,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:16:10,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:16:10,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:16:10,956 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:16:10,956 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069783013] [2021-06-05 00:16:10,956 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069783013] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:16:10,956 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:16:10,957 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:16:10,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234686682] [2021-06-05 00:16:10,957 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:16:10,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:16:10,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:16:10,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:16:10,961 INFO L87 Difference]: Start difference. First operand 2911 states and 9297 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:16:11,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:16:11,139 INFO L93 Difference]: Finished difference Result 3001 states and 9348 transitions. [2021-06-05 00:16:11,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 00:16:11,139 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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 56 [2021-06-05 00:16:11,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:16:11,148 INFO L225 Difference]: With dead ends: 3001 [2021-06-05 00:16:11,149 INFO L226 Difference]: Without dead ends: 2209 [2021-06-05 00:16:11,149 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 148.5ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-05 00:16:11,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2209 states. [2021-06-05 00:16:11,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2209 to 2209. [2021-06-05 00:16:11,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2209 states, 2208 states have (on average 3.0652173913043477) internal successors, (6768), 2208 states have internal predecessors, (6768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:16:11,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2209 states to 2209 states and 6768 transitions. [2021-06-05 00:16:11,189 INFO L78 Accepts]: Start accepts. Automaton has 2209 states and 6768 transitions. Word has length 56 [2021-06-05 00:16:11,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:16:11,190 INFO L482 AbstractCegarLoop]: Abstraction has 2209 states and 6768 transitions. [2021-06-05 00:16:11,190 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:16:11,190 INFO L276 IsEmpty]: Start isEmpty. Operand 2209 states and 6768 transitions. [2021-06-05 00:16:11,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-06-05 00:16:11,194 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:16:11,194 INFO L521 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] [2021-06-05 00:16:11,194 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 00:16:11,194 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:16:11,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:16:11,194 INFO L82 PathProgramCache]: Analyzing trace with hash 323867161, now seen corresponding path program 1 times [2021-06-05 00:16:11,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:16:11,195 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118206693] [2021-06-05 00:16:11,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:16:11,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:16:11,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:16:11,296 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:16:11,297 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118206693] [2021-06-05 00:16:11,297 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118206693] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:16:11,297 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:16:11,297 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 00:16:11,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977381751] [2021-06-05 00:16:11,297 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 00:16:11,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:16:11,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 00:16:11,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-05 00:16:11,298 INFO L87 Difference]: Start difference. First operand 2209 states and 6768 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:16:11,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:16:11,489 INFO L93 Difference]: Finished difference Result 1858 states and 5535 transitions. [2021-06-05 00:16:11,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 00:16:11,489 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 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 58 [2021-06-05 00:16:11,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:16:11,506 INFO L225 Difference]: With dead ends: 1858 [2021-06-05 00:16:11,506 INFO L226 Difference]: Without dead ends: 1426 [2021-06-05 00:16:11,507 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 161.5ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:16:11,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2021-06-05 00:16:11,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1426. [2021-06-05 00:16:11,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 1425 states have (on average 2.917894736842105) internal successors, (4158), 1425 states have internal predecessors, (4158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:16:11,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 4158 transitions. [2021-06-05 00:16:11,529 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 4158 transitions. Word has length 58 [2021-06-05 00:16:11,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:16:11,530 INFO L482 AbstractCegarLoop]: Abstraction has 1426 states and 4158 transitions. [2021-06-05 00:16:11,530 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:16:11,530 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 4158 transitions. [2021-06-05 00:16:11,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-06-05 00:16:11,532 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:16:11,532 INFO L521 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, 1, 1, 1] [2021-06-05 00:16:11,533 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 00:16:11,533 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:16:11,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:16:11,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1400508759, now seen corresponding path program 1 times [2021-06-05 00:16:11,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:16:11,533 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161565386] [2021-06-05 00:16:11,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:16:11,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:16:11,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:16:11,659 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:16:11,659 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161565386] [2021-06-05 00:16:11,659 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161565386] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:16:11,659 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:16:11,659 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:16:11,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246722904] [2021-06-05 00:16:11,659 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:16:11,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:16:11,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:16:11,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:16:11,662 INFO L87 Difference]: Start difference. First operand 1426 states and 4158 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 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) [2021-06-05 00:16:11,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:16:11,808 INFO L93 Difference]: Finished difference Result 1909 states and 5599 transitions. [2021-06-05 00:16:11,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 00:16:11,809 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 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) Word has length 62 [2021-06-05 00:16:11,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:16:11,811 INFO L225 Difference]: With dead ends: 1909 [2021-06-05 00:16:11,811 INFO L226 Difference]: Without dead ends: 1034 [2021-06-05 00:16:11,812 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 144.1ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:16:11,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2021-06-05 00:16:11,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 986. [2021-06-05 00:16:11,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 985 states have (on average 2.86497461928934) internal successors, (2822), 985 states have internal predecessors, (2822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:16:11,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 2822 transitions. [2021-06-05 00:16:11,828 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 2822 transitions. Word has length 62 [2021-06-05 00:16:11,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:16:11,829 INFO L482 AbstractCegarLoop]: Abstraction has 986 states and 2822 transitions. [2021-06-05 00:16:11,829 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 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) [2021-06-05 00:16:11,829 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 2822 transitions. [2021-06-05 00:16:11,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-06-05 00:16:11,830 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:16:11,830 INFO L521 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, 1, 1, 1] [2021-06-05 00:16:11,831 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 00:16:11,831 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:16:11,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:16:11,831 INFO L82 PathProgramCache]: Analyzing trace with hash 1018250489, now seen corresponding path program 2 times [2021-06-05 00:16:11,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:16:11,831 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250570367] [2021-06-05 00:16:11,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:16:11,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:16:11,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:16:11,938 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:16:11,938 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250570367] [2021-06-05 00:16:11,941 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250570367] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:16:11,941 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:16:11,941 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 00:16:11,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137883973] [2021-06-05 00:16:11,942 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 00:16:11,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:16:11,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 00:16:11,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-06-05 00:16:11,943 INFO L87 Difference]: Start difference. First operand 986 states and 2822 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 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) [2021-06-05 00:16:12,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:16:12,042 INFO L93 Difference]: Finished difference Result 1469 states and 4263 transitions. [2021-06-05 00:16:12,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 00:16:12,042 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 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) Word has length 62 [2021-06-05 00:16:12,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:16:12,044 INFO L225 Difference]: With dead ends: 1469 [2021-06-05 00:16:12,044 INFO L226 Difference]: Without dead ends: 876 [2021-06-05 00:16:12,045 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 120.2ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-05 00:16:12,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2021-06-05 00:16:12,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 876. [2021-06-05 00:16:12,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 876 states, 875 states have (on average 2.8434285714285714) internal successors, (2488), 875 states have internal predecessors, (2488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:16:12,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 2488 transitions. [2021-06-05 00:16:12,059 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 2488 transitions. Word has length 62 [2021-06-05 00:16:12,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:16:12,059 INFO L482 AbstractCegarLoop]: Abstraction has 876 states and 2488 transitions. [2021-06-05 00:16:12,059 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 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) [2021-06-05 00:16:12,059 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 2488 transitions. [2021-06-05 00:16:12,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-06-05 00:16:12,061 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:16:12,061 INFO L521 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, 1, 1, 1] [2021-06-05 00:16:12,061 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 00:16:12,061 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:16:12,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:16:12,061 INFO L82 PathProgramCache]: Analyzing trace with hash -2144995453, now seen corresponding path program 3 times [2021-06-05 00:16:12,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:16:12,062 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455098769] [2021-06-05 00:16:12,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:16:12,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:16:12,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:16:12,152 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:16:12,153 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455098769] [2021-06-05 00:16:12,155 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455098769] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:16:12,156 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:16:12,156 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:16:12,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332377921] [2021-06-05 00:16:12,159 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:16:12,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:16:12,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:16:12,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:16:12,160 INFO L87 Difference]: Start difference. First operand 876 states and 2488 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 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) [2021-06-05 00:16:12,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:16:12,269 INFO L93 Difference]: Finished difference Result 822 states and 2326 transitions. [2021-06-05 00:16:12,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 00:16:12,269 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 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) Word has length 62 [2021-06-05 00:16:12,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:16:12,270 INFO L225 Difference]: With dead ends: 822 [2021-06-05 00:16:12,270 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 00:16:12,270 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 135.6ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:16:12,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 00:16:12,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 00:16:12,270 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) [2021-06-05 00:16:12,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 00:16:12,271 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2021-06-05 00:16:12,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:16:12,271 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 00:16:12,271 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 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) [2021-06-05 00:16:12,271 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 00:16:12,271 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 00:16:12,271 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 00:16:12,273 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 00:16:12,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 12:16:12 BasicIcfg [2021-06-05 00:16:12,275 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 00:16:12,275 INFO L168 Benchmark]: Toolchain (without parser) took 4534.80 ms. Allocated memory was 331.4 MB in the beginning and 738.2 MB in the end (delta: 406.8 MB). Free memory was 294.3 MB in the beginning and 551.3 MB in the end (delta: -257.0 MB). Peak memory consumption was 151.8 MB. Max. memory is 16.0 GB. [2021-06-05 00:16:12,276 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 331.4 MB. Free memory is still 312.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 00:16:12,277 INFO L168 Benchmark]: CACSL2BoogieTranslator took 393.88 ms. Allocated memory is still 331.4 MB. Free memory was 294.2 MB in the beginning and 293.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.0 GB. [2021-06-05 00:16:12,277 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.08 ms. Allocated memory is still 331.4 MB. Free memory was 293.0 MB in the beginning and 290.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 00:16:12,277 INFO L168 Benchmark]: Boogie Preprocessor took 12.61 ms. Allocated memory is still 331.4 MB. Free memory was 290.9 MB in the beginning and 289.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 00:16:12,278 INFO L168 Benchmark]: RCFGBuilder took 390.09 ms. Allocated memory is still 331.4 MB. Free memory was 289.9 MB in the beginning and 263.6 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-05 00:16:12,278 INFO L168 Benchmark]: TraceAbstraction took 3709.23 ms. Allocated memory was 331.4 MB in the beginning and 738.2 MB in the end (delta: 406.8 MB). Free memory was 263.6 MB in the beginning and 551.3 MB in the end (delta: -287.7 MB). Peak memory consumption was 121.3 MB. Max. memory is 16.0 GB. [2021-06-05 00:16:12,279 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 331.4 MB. Free memory is still 312.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 393.88 ms. Allocated memory is still 331.4 MB. Free memory was 294.2 MB in the beginning and 293.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 25.08 ms. Allocated memory is still 331.4 MB. Free memory was 293.0 MB in the beginning and 290.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 12.61 ms. Allocated memory is still 331.4 MB. Free memory was 290.9 MB in the beginning and 289.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 390.09 ms. Allocated memory is still 331.4 MB. Free memory was 289.9 MB in the beginning and 263.6 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3709.23 ms. Allocated memory was 331.4 MB in the beginning and 738.2 MB in the end (delta: 406.8 MB). Free memory was 263.6 MB in the beginning and 551.3 MB in the end (delta: -287.7 MB). Peak memory consumption was 121.3 MB. Max. memory is 16.0 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 with 1 thread instances CFG has 7 procedures, 108 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3617.4ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 97.9ms, AutomataDifference: 1481.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 393.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 844 SDtfs, 1253 SDslu, 2980 SDs, 0 SdLazy, 300 SolverSat, 60 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 288.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1216.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9333occurred in iteration=0, InterpolantAutomatonStates: 73, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 489.3ms AutomataMinimizationTime, 8 MinimizatonAttempts, 48 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 21.0ms SsaConstructionTime, 135.5ms SatisfiabilityAnalysisTime, 859.2ms InterpolantComputationTime, 457 NumberOfCodeBlocks, 457 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 449 ConstructedInterpolants, 0 QuantifiedInterpolants, 1825 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...