/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/safe009_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-05 19:51:39,126 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 19:51:39,129 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 19:51:39,170 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 19:51:39,220 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 19:51:39,221 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 19:51:39,221 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 19:51:39,225 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 19:51:39,258 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 19:51:39,258 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 19:51:39,259 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 19:51:39,259 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 19:51:39,261 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 19:51:39,261 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 19:51:39,261 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 19:51:39,261 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 19:51:39,262 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 19:51:39,262 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 19:51:39,262 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 19:51:39,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 19:51:39,263 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 19:51:39,263 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 19:51:39,263 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 19:51:39,263 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 19:51:39,263 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 19:51:39,263 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 19:51:39,263 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 19:51:39,264 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 19:51:39,264 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 19:51:39,264 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 19:51:39,264 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 19:51:39,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 19:51:39,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 19:51:39,264 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 19:51:39,264 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 19:51:39,265 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 19:51:39,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 19:51:39,265 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 19:51:39,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 19:51:39,265 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 19:51:39,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 19:51:39,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 19:51:39,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 19:51:39,597 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 19:51:39,597 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 19:51:39,598 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_tso.oepc.i [2021-06-05 19:51:39,665 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4109eff9d/28e9dd193da24941a5947be60411453e/FLAG02f1f2a6f [2021-06-05 19:51:40,143 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 19:51:40,143 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_tso.oepc.i [2021-06-05 19:51:40,167 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4109eff9d/28e9dd193da24941a5947be60411453e/FLAG02f1f2a6f [2021-06-05 19:51:40,481 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4109eff9d/28e9dd193da24941a5947be60411453e [2021-06-05 19:51:40,483 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 19:51:40,484 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 19:51:40,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 19:51:40,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 19:51:40,505 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 19:51:40,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 07:51:40" (1/1) ... [2021-06-05 19:51:40,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e846cfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:51:40, skipping insertion in model container [2021-06-05 19:51:40,512 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 07:51:40" (1/1) ... [2021-06-05 19:51:40,518 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 19:51:40,550 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 19:51:40,687 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/safe009_tso.oepc.i[950,963] [2021-06-05 19:51:40,881 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 19:51:40,887 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 19:51:40,898 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/safe009_tso.oepc.i[950,963] [2021-06-05 19:51:40,933 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 19:51:41,007 INFO L208 MainTranslator]: Completed translation [2021-06-05 19:51:41,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:51:41 WrapperNode [2021-06-05 19:51:41,008 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 19:51:41,010 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 19:51:41,010 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 19:51:41,010 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 19:51:41,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:51:41" (1/1) ... [2021-06-05 19:51:41,045 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:51:41" (1/1) ... [2021-06-05 19:51:41,068 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 19:51:41,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 19:51:41,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 19:51:41,070 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 19:51:41,076 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:51:41" (1/1) ... [2021-06-05 19:51:41,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:51:41" (1/1) ... [2021-06-05 19:51:41,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:51:41" (1/1) ... [2021-06-05 19:51:41,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:51:41" (1/1) ... [2021-06-05 19:51:41,095 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:51:41" (1/1) ... [2021-06-05 19:51:41,097 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:51:41" (1/1) ... [2021-06-05 19:51:41,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:51:41" (1/1) ... [2021-06-05 19:51:41,100 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 19:51:41,101 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 19:51:41,101 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 19:51:41,101 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 19:51:41,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:51:41" (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 19:51:41,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 19:51:41,180 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 19:51:41,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 19:51:41,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 19:51:41,181 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-05 19:51:41,182 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-05 19:51:41,183 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-05 19:51:41,183 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-05 19:51:41,183 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-05 19:51:41,183 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-05 19:51:41,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 19:51:41,183 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 19:51:41,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 19:51:41,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 19:51:41,185 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 19:51:41,640 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 19:51:41,640 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-05 19:51:41,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 07:51:41 BoogieIcfgContainer [2021-06-05 19:51:41,643 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 19:51:41,644 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 19:51:41,644 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 19:51:41,647 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 19:51:41,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 07:51:40" (1/3) ... [2021-06-05 19:51:41,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cfe5a4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 07:51:41, skipping insertion in model container [2021-06-05 19:51:41,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:51:41" (2/3) ... [2021-06-05 19:51:41,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cfe5a4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 07:51:41, skipping insertion in model container [2021-06-05 19:51:41,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 07:51:41" (3/3) ... [2021-06-05 19:51:41,650 INFO L111 eAbstractionObserver]: Analyzing ICFG safe009_tso.oepc.i [2021-06-05 19:51:41,655 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 19:51:41,656 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 19:51:41,656 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 19:51:41,656 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 19:51:41,695 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,696 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,696 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,696 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,696 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,696 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,696 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,697 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,697 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,697 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,697 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,697 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,698 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,698 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,698 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,699 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,699 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,699 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,699 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,699 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,701 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,701 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,702 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,702 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,702 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,705 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,705 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,705 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,709 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,709 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,709 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,710 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,710 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,710 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,711 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,711 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,713 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,713 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,713 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,713 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,718 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,719 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,719 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,719 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,721 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,721 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,721 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,721 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:41,724 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 19:51:41,747 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-05 19:51:41,775 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 19:51:41,776 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 19:51:41,776 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 19:51:41,776 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 19:51:41,776 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 19:51:41,776 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 19:51:41,776 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 19:51:41,777 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-05 19:51:41,793 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 90 places, 82 transitions, 179 flow [2021-06-05 19:51:42,178 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8057 states, 8055 states have (on average 3.532588454376164) internal successors, (28455), 8056 states have internal predecessors, (28455), 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 19:51:42,220 INFO L276 IsEmpty]: Start isEmpty. Operand has 8057 states, 8055 states have (on average 3.532588454376164) internal successors, (28455), 8056 states have internal predecessors, (28455), 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 19:51:42,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-06-05 19:51:42,261 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:51:42,261 INFO L554 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] [2021-06-05 19:51:42,262 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:51:42,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:51:42,266 INFO L82 PathProgramCache]: Analyzing trace with hash -710190392, now seen corresponding path program 1 times [2021-06-05 19:51:42,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:51:42,274 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617028565] [2021-06-05 19:51:42,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:51:42,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:51:42,655 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 19:51:42,655 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:51:42,656 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617028565] [2021-06-05 19:51:42,657 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617028565] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:51:42,657 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:51:42,657 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 19:51:42,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330811981] [2021-06-05 19:51:42,662 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 19:51:42,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:51:42,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 19:51:42,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 19:51:42,699 INFO L87 Difference]: Start difference. First operand has 8057 states, 8055 states have (on average 3.532588454376164) internal successors, (28455), 8056 states have internal predecessors, (28455), 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 6.857142857142857) internal successors, (48), 7 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) [2021-06-05 19:51:43,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:51:43,292 INFO L93 Difference]: Finished difference Result 16603 states and 56511 transitions. [2021-06-05 19:51:43,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 19:51:43,294 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 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 [2021-06-05 19:51:43,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:51:43,342 INFO L225 Difference]: With dead ends: 16603 [2021-06-05 19:51:43,343 INFO L226 Difference]: Without dead ends: 5653 [2021-06-05 19:51:43,344 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 314.1ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 19:51:43,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5653 states. [2021-06-05 19:51:43,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5653 to 4741. [2021-06-05 19:51:43,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4741 states, 4740 states have (on average 3.2978902953586497) internal successors, (15632), 4740 states have internal predecessors, (15632), 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 19:51:43,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4741 states to 4741 states and 15632 transitions. [2021-06-05 19:51:43,713 INFO L78 Accepts]: Start accepts. Automaton has 4741 states and 15632 transitions. Word has length 48 [2021-06-05 19:51:43,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:51:43,718 INFO L482 AbstractCegarLoop]: Abstraction has 4741 states and 15632 transitions. [2021-06-05 19:51:43,719 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 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) [2021-06-05 19:51:43,719 INFO L276 IsEmpty]: Start isEmpty. Operand 4741 states and 15632 transitions. [2021-06-05 19:51:43,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-06-05 19:51:43,741 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:51:43,742 INFO L554 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 19:51:43,742 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 19:51:43,742 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:51:43,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:51:43,745 INFO L82 PathProgramCache]: Analyzing trace with hash -157935543, now seen corresponding path program 1 times [2021-06-05 19:51:43,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:51:43,745 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064268893] [2021-06-05 19:51:43,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:51:43,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:51:43,952 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 19:51:43,952 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:51:43,952 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064268893] [2021-06-05 19:51:43,953 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064268893] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:51:43,953 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:51:43,953 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 19:51:43,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558753038] [2021-06-05 19:51:43,955 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 19:51:43,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:51:43,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 19:51:43,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 19:51:43,958 INFO L87 Difference]: Start difference. First operand 4741 states and 15632 transitions. 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 19:51:44,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:51:44,410 INFO L93 Difference]: Finished difference Result 7472 states and 24362 transitions. [2021-06-05 19:51:44,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 19:51:44,410 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 19:51:44,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:51:44,445 INFO L225 Difference]: With dead ends: 7472 [2021-06-05 19:51:44,445 INFO L226 Difference]: Without dead ends: 5712 [2021-06-05 19:51:44,446 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 349.6ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-06-05 19:51:44,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5712 states. [2021-06-05 19:51:44,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5712 to 4800. [2021-06-05 19:51:44,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4800 states, 4799 states have (on average 3.2890185455303187) internal successors, (15784), 4799 states have internal predecessors, (15784), 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 19:51:44,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4800 states to 4800 states and 15784 transitions. [2021-06-05 19:51:44,633 INFO L78 Accepts]: Start accepts. Automaton has 4800 states and 15784 transitions. Word has length 50 [2021-06-05 19:51:44,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:51:44,633 INFO L482 AbstractCegarLoop]: Abstraction has 4800 states and 15784 transitions. [2021-06-05 19:51:44,633 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 19:51:44,634 INFO L276 IsEmpty]: Start isEmpty. Operand 4800 states and 15784 transitions. [2021-06-05 19:51:44,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-06-05 19:51:44,646 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:51:44,646 INFO L554 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 19:51:44,646 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 19:51:44,646 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:51:44,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:51:44,654 INFO L82 PathProgramCache]: Analyzing trace with hash -1470695374, now seen corresponding path program 1 times [2021-06-05 19:51:44,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:51:44,654 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278930269] [2021-06-05 19:51:44,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:51:44,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:51:44,798 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 19:51:44,798 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:51:44,798 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278930269] [2021-06-05 19:51:44,799 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278930269] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:51:44,799 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:51:44,799 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 19:51:44,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654399128] [2021-06-05 19:51:44,800 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 19:51:44,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:51:44,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 19:51:44,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 19:51:44,801 INFO L87 Difference]: Start difference. First operand 4800 states and 15784 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 19:51:45,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:51:45,116 INFO L93 Difference]: Finished difference Result 6780 states and 22016 transitions. [2021-06-05 19:51:45,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 19:51:45,117 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 19:51:45,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:51:45,155 INFO L225 Difference]: With dead ends: 6780 [2021-06-05 19:51:45,155 INFO L226 Difference]: Without dead ends: 3545 [2021-06-05 19:51:45,156 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 259.3ms TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-06-05 19:51:45,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3545 states. [2021-06-05 19:51:45,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3545 to 3225. [2021-06-05 19:51:45,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3225 states, 3224 states have (on average 3.240694789081886) internal successors, (10448), 3224 states have internal predecessors, (10448), 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 19:51:45,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3225 states to 3225 states and 10448 transitions. [2021-06-05 19:51:45,278 INFO L78 Accepts]: Start accepts. Automaton has 3225 states and 10448 transitions. Word has length 52 [2021-06-05 19:51:45,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:51:45,280 INFO L482 AbstractCegarLoop]: Abstraction has 3225 states and 10448 transitions. [2021-06-05 19:51:45,281 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 19:51:45,281 INFO L276 IsEmpty]: Start isEmpty. Operand 3225 states and 10448 transitions. [2021-06-05 19:51:45,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-06-05 19:51:45,288 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:51:45,288 INFO L554 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] [2021-06-05 19:51:45,288 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 19:51:45,289 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:51:45,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:51:45,290 INFO L82 PathProgramCache]: Analyzing trace with hash 1238873360, now seen corresponding path program 1 times [2021-06-05 19:51:45,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:51:45,291 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677440433] [2021-06-05 19:51:45,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:51:45,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:51:45,435 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 19:51:45,436 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:51:45,436 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677440433] [2021-06-05 19:51:45,436 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677440433] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:51:45,436 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:51:45,437 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 19:51:45,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868980870] [2021-06-05 19:51:45,440 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 19:51:45,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:51:45,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 19:51:45,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 19:51:45,442 INFO L87 Difference]: Start difference. First operand 3225 states and 10448 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 19:51:45,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:51:45,599 INFO L93 Difference]: Finished difference Result 5161 states and 16596 transitions. [2021-06-05 19:51:45,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 19:51:45,600 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 53 [2021-06-05 19:51:45,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:51:45,611 INFO L225 Difference]: With dead ends: 5161 [2021-06-05 19:51:45,611 INFO L226 Difference]: Without dead ends: 3465 [2021-06-05 19:51:45,612 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 124.8ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-05 19:51:45,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3465 states. [2021-06-05 19:51:45,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3465 to 2985. [2021-06-05 19:51:45,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2985 states, 2984 states have (on average 3.1943699731903483) internal successors, (9532), 2984 states have internal predecessors, (9532), 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 19:51:45,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2985 states to 2985 states and 9532 transitions. [2021-06-05 19:51:45,752 INFO L78 Accepts]: Start accepts. Automaton has 2985 states and 9532 transitions. Word has length 53 [2021-06-05 19:51:45,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:51:45,752 INFO L482 AbstractCegarLoop]: Abstraction has 2985 states and 9532 transitions. [2021-06-05 19:51:45,752 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 19:51:45,753 INFO L276 IsEmpty]: Start isEmpty. Operand 2985 states and 9532 transitions. [2021-06-05 19:51:45,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-06-05 19:51:45,759 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:51:45,760 INFO L554 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] [2021-06-05 19:51:45,760 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 19:51:45,763 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:51:45,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:51:45,764 INFO L82 PathProgramCache]: Analyzing trace with hash -230361873, now seen corresponding path program 1 times [2021-06-05 19:51:45,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:51:45,766 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362655844] [2021-06-05 19:51:45,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:51:45,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:51:45,899 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 19:51:45,899 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:51:45,899 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362655844] [2021-06-05 19:51:45,899 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362655844] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:51:45,899 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:51:45,899 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 19:51:45,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636725565] [2021-06-05 19:51:45,901 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 19:51:45,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:51:45,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 19:51:45,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 19:51:45,902 INFO L87 Difference]: Start difference. First operand 2985 states and 9532 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 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) [2021-06-05 19:51:46,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:51:46,061 INFO L93 Difference]: Finished difference Result 3393 states and 10686 transitions. [2021-06-05 19:51:46,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 19:51:46,061 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 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 [2021-06-05 19:51:46,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:51:46,066 INFO L225 Difference]: With dead ends: 3393 [2021-06-05 19:51:46,067 INFO L226 Difference]: Without dead ends: 1183 [2021-06-05 19:51:46,067 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 128.7ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-05 19:51:46,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2021-06-05 19:51:46,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1183. [2021-06-05 19:51:46,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1182 states have (on average 3.020304568527919) internal successors, (3570), 1182 states have internal predecessors, (3570), 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 19:51:46,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 3570 transitions. [2021-06-05 19:51:46,093 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 3570 transitions. Word has length 54 [2021-06-05 19:51:46,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:51:46,093 INFO L482 AbstractCegarLoop]: Abstraction has 1183 states and 3570 transitions. [2021-06-05 19:51:46,093 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 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) [2021-06-05 19:51:46,093 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 3570 transitions. [2021-06-05 19:51:46,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-06-05 19:51:46,095 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:51:46,096 INFO L554 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 19:51:46,096 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 19:51:46,096 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:51:46,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:51:46,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1721608039, now seen corresponding path program 1 times [2021-06-05 19:51:46,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:51:46,097 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365229980] [2021-06-05 19:51:46,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:51:46,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:51:46,203 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 19:51:46,203 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:51:46,203 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365229980] [2021-06-05 19:51:46,203 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365229980] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:51:46,203 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:51:46,203 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 19:51:46,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602279711] [2021-06-05 19:51:46,204 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 19:51:46,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:51:46,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 19:51:46,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 19:51:46,207 INFO L87 Difference]: Start difference. First operand 1183 states and 3570 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 19:51:46,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:51:46,303 INFO L93 Difference]: Finished difference Result 1388 states and 4133 transitions. [2021-06-05 19:51:46,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 19:51:46,303 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 19:51:46,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:51:46,306 INFO L225 Difference]: With dead ends: 1388 [2021-06-05 19:51:46,306 INFO L226 Difference]: Without dead ends: 1068 [2021-06-05 19:51:46,306 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 85.1ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 19:51:46,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2021-06-05 19:51:46,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 1068. [2021-06-05 19:51:46,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1068 states, 1067 states have (on average 2.980318650421743) internal successors, (3180), 1067 states have internal predecessors, (3180), 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 19:51:46,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 3180 transitions. [2021-06-05 19:51:46,328 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 3180 transitions. Word has length 55 [2021-06-05 19:51:46,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:51:46,328 INFO L482 AbstractCegarLoop]: Abstraction has 1068 states and 3180 transitions. [2021-06-05 19:51:46,328 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 19:51:46,328 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 3180 transitions. [2021-06-05 19:51:46,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-05 19:51:46,330 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:51:46,331 INFO L554 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 19:51:46,331 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 19:51:46,331 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:51:46,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:51:46,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1625570487, now seen corresponding path program 1 times [2021-06-05 19:51:46,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:51:46,332 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302432033] [2021-06-05 19:51:46,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:51:46,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:51:46,437 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 19:51:46,437 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:51:46,437 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302432033] [2021-06-05 19:51:46,437 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302432033] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:51:46,438 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:51:46,438 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 19:51:46,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186015023] [2021-06-05 19:51:46,438 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 19:51:46,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:51:46,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 19:51:46,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 19:51:46,439 INFO L87 Difference]: Start difference. First operand 1068 states and 3180 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 19:51:46,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:51:46,561 INFO L93 Difference]: Finished difference Result 960 states and 2760 transitions. [2021-06-05 19:51:46,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 19:51:46,562 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 19:51:46,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:51:46,564 INFO L225 Difference]: With dead ends: 960 [2021-06-05 19:51:46,564 INFO L226 Difference]: Without dead ends: 708 [2021-06-05 19:51:46,565 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 109.0ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-05 19:51:46,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2021-06-05 19:51:46,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2021-06-05 19:51:46,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 707 states have (on average 2.8217821782178216) internal successors, (1995), 707 states have internal predecessors, (1995), 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 19:51:46,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 1995 transitions. [2021-06-05 19:51:46,613 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 1995 transitions. Word has length 56 [2021-06-05 19:51:46,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:51:46,613 INFO L482 AbstractCegarLoop]: Abstraction has 708 states and 1995 transitions. [2021-06-05 19:51:46,613 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 19:51:46,613 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 1995 transitions. [2021-06-05 19:51:46,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-06-05 19:51:46,614 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:51:46,614 INFO L554 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] [2021-06-05 19:51:46,615 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 19:51:46,615 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:51:46,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:51:46,615 INFO L82 PathProgramCache]: Analyzing trace with hash -255944118, now seen corresponding path program 1 times [2021-06-05 19:51:46,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:51:46,615 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720658650] [2021-06-05 19:51:46,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:51:46,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:51:46,693 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 19:51:46,694 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:51:46,694 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720658650] [2021-06-05 19:51:46,694 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720658650] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:51:46,694 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:51:46,694 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 19:51:46,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539605363] [2021-06-05 19:51:46,695 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 19:51:46,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:51:46,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 19:51:46,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-05 19:51:46,696 INFO L87 Difference]: Start difference. First operand 708 states and 1995 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) [2021-06-05 19:51:46,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:51:46,787 INFO L93 Difference]: Finished difference Result 411 states and 1104 transitions. [2021-06-05 19:51:46,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 19:51:46,788 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 [2021-06-05 19:51:46,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:51:46,788 INFO L225 Difference]: With dead ends: 411 [2021-06-05 19:51:46,788 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 19:51:46,788 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 105.1ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-06-05 19:51:46,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 19:51:46,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 19:51:46,789 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 19:51:46,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 19:51:46,789 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 57 [2021-06-05 19:51:46,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:51:46,789 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 19:51:46,789 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) [2021-06-05 19:51:46,789 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 19:51:46,790 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 19:51:46,790 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 19:51:46,792 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 19:51:46,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 07:51:46 BasicIcfg [2021-06-05 19:51:46,794 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 19:51:46,795 INFO L168 Benchmark]: Toolchain (without parser) took 6310.64 ms. Allocated memory was 343.9 MB in the beginning and 1.4 GB in the end (delta: 1.0 GB). Free memory was 306.6 MB in the beginning and 1.2 GB in the end (delta: -881.1 MB). Peak memory consumption was 156.1 MB. Max. memory is 16.0 GB. [2021-06-05 19:51:46,795 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 343.9 MB. Free memory was 324.7 MB in the beginning and 324.6 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 19:51:46,796 INFO L168 Benchmark]: CACSL2BoogieTranslator took 508.13 ms. Allocated memory is still 343.9 MB. Free memory was 306.4 MB in the beginning and 306.5 MB in the end (delta: -150.6 kB). Peak memory consumption was 6.8 MB. Max. memory is 16.0 GB. [2021-06-05 19:51:46,796 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.16 ms. Allocated memory is still 343.9 MB. Free memory was 306.5 MB in the beginning and 304.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 19:51:46,796 INFO L168 Benchmark]: Boogie Preprocessor took 30.57 ms. Allocated memory is still 343.9 MB. Free memory was 304.5 MB in the beginning and 303.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 19:51:46,797 INFO L168 Benchmark]: RCFGBuilder took 542.42 ms. Allocated memory is still 343.9 MB. Free memory was 303.4 MB in the beginning and 279.3 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-06-05 19:51:46,797 INFO L168 Benchmark]: TraceAbstraction took 5150.02 ms. Allocated memory was 343.9 MB in the beginning and 1.4 GB in the end (delta: 1.0 GB). Free memory was 278.2 MB in the beginning and 1.2 GB in the end (delta: -909.4 MB). Peak memory consumption was 129.7 MB. Max. memory is 16.0 GB. [2021-06-05 19:51:46,799 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 343.9 MB. Free memory was 324.7 MB in the beginning and 324.6 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 508.13 ms. Allocated memory is still 343.9 MB. Free memory was 306.4 MB in the beginning and 306.5 MB in the end (delta: -150.6 kB). Peak memory consumption was 6.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 59.16 ms. Allocated memory is still 343.9 MB. Free memory was 306.5 MB in the beginning and 304.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 30.57 ms. Allocated memory is still 343.9 MB. Free memory was 304.5 MB in the beginning and 303.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 542.42 ms. Allocated memory is still 343.9 MB. Free memory was 303.4 MB in the beginning and 279.3 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5150.02 ms. Allocated memory was 343.9 MB in the beginning and 1.4 GB in the end (delta: 1.0 GB). Free memory was 278.2 MB in the beginning and 1.2 GB in the end (delta: -909.4 MB). Peak memory consumption was 129.7 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 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: 5016.6ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 134.9ms, AutomataDifference: 2186.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 402.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 794 SDtfs, 1316 SDslu, 2807 SDs, 0 SdLazy, 327 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 375.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 113 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 1476.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=8057occurred in iteration=0, InterpolantAutomatonStates: 90, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 901.3ms AutomataMinimizationTime, 8 MinimizatonAttempts, 2624 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 32.2ms SsaConstructionTime, 169.0ms SatisfiabilityAnalysisTime, 991.3ms InterpolantComputationTime, 425 NumberOfCodeBlocks, 425 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 417 ConstructedInterpolants, 0 QuantifiedInterpolants, 1757 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...