/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/thin001_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-05 20:00:04,253 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 20:00:04,256 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 20:00:04,292 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 20:00:04,312 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 20:00:04,314 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 20:00:04,316 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 20:00:04,317 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 20:00:04,319 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 20:00:04,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 20:00:04,322 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 20:00:04,327 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 20:00:04,328 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 20:00:04,330 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 20:00:04,330 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 20:00:04,332 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 20:00:04,338 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-05 20:00:04,355 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 20:00:04,356 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 20:00:04,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 20:00:04,360 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 20:00:04,395 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 20:00:04,395 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 20:00:04,395 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 20:00:04,396 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 20:00:04,398 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 20:00:04,398 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 20:00:04,398 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 20:00:04,399 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 20:00:04,399 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 20:00:04,399 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 20:00:04,400 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 20:00:04,400 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 20:00:04,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 20:00:04,400 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 20:00:04,401 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 20:00:04,401 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 20:00:04,401 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 20:00:04,401 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 20:00:04,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 20:00:04,401 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 20:00:04,401 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 20:00:04,402 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 20:00:04,402 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 20:00:04,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 20:00:04,402 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 20:00:04,402 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 20:00:04,402 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 20:00:04,403 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 20:00:04,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 20:00:04,403 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 20:00:04,403 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 20:00:04,403 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 20:00:04,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 20:00:04,749 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 20:00:04,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 20:00:04,753 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 20:00:04,754 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 20:00:04,754 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin001_tso.oepc.i [2021-06-05 20:00:04,816 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e17c0df62/14a79f886e4d42a8b1621496cc49fe13/FLAG5db34d7f8 [2021-06-05 20:00:05,299 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 20:00:05,299 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin001_tso.oepc.i [2021-06-05 20:00:05,328 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e17c0df62/14a79f886e4d42a8b1621496cc49fe13/FLAG5db34d7f8 [2021-06-05 20:00:05,647 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e17c0df62/14a79f886e4d42a8b1621496cc49fe13 [2021-06-05 20:00:05,650 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 20:00:05,652 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 20:00:05,653 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 20:00:05,654 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 20:00:05,657 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 20:00:05,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 08:00:05" (1/1) ... [2021-06-05 20:00:05,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@735a436b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:05, skipping insertion in model container [2021-06-05 20:00:05,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 08:00:05" (1/1) ... [2021-06-05 20:00:05,665 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 20:00:05,715 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 20:00:05,843 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/thin001_tso.oepc.i[950,963] [2021-06-05 20:00:06,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 20:00:06,039 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 20:00:06,052 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/thin001_tso.oepc.i[950,963] [2021-06-05 20:00:06,088 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 20:00:06,148 INFO L208 MainTranslator]: Completed translation [2021-06-05 20:00:06,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:06 WrapperNode [2021-06-05 20:00:06,149 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 20:00:06,150 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 20:00:06,150 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 20:00:06,150 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 20:00:06,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:06" (1/1) ... [2021-06-05 20:00:06,165 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:06" (1/1) ... [2021-06-05 20:00:06,181 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 20:00:06,182 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 20:00:06,182 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 20:00:06,182 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 20:00:06,188 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:06" (1/1) ... [2021-06-05 20:00:06,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:06" (1/1) ... [2021-06-05 20:00:06,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:06" (1/1) ... [2021-06-05 20:00:06,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:06" (1/1) ... [2021-06-05 20:00:06,196 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:06" (1/1) ... [2021-06-05 20:00:06,197 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:06" (1/1) ... [2021-06-05 20:00:06,199 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:06" (1/1) ... [2021-06-05 20:00:06,201 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 20:00:06,202 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 20:00:06,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 20:00:06,202 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 20:00:06,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:06" (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 20:00:06,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 20:00:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 20:00:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 20:00:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 20:00:06,287 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-05 20:00:06,287 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-05 20:00:06,287 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-05 20:00:06,287 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-05 20:00:06,287 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-05 20:00:06,288 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-05 20:00:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 20:00:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 20:00:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 20:00:06,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 20:00:06,290 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 20:00:06,710 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 20:00:06,711 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-05 20:00:06,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 08:00:06 BoogieIcfgContainer [2021-06-05 20:00:06,713 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 20:00:06,715 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 20:00:06,715 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 20:00:06,717 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 20:00:06,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 08:00:05" (1/3) ... [2021-06-05 20:00:06,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35af24a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 08:00:06, skipping insertion in model container [2021-06-05 20:00:06,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:06" (2/3) ... [2021-06-05 20:00:06,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35af24a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 08:00:06, skipping insertion in model container [2021-06-05 20:00:06,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 08:00:06" (3/3) ... [2021-06-05 20:00:06,720 INFO L111 eAbstractionObserver]: Analyzing ICFG thin001_tso.oepc.i [2021-06-05 20:00:06,727 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 20:00:06,727 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 20:00:06,728 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 20:00:06,728 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 20:00:06,767 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,767 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,767 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,767 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,767 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,768 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,770 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,770 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,771 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,771 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,771 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,771 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,771 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,772 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,772 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,772 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,773 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,773 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,773 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,773 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,778 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,778 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,778 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,779 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,779 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,779 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,780 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,780 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,780 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,780 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,780 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,781 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,781 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,781 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,782 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,782 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,783 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,784 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,789 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,789 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,789 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,789 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,792 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,792 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,792 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,792 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:06,796 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 20:00:06,815 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-05 20:00:06,842 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 20:00:06,843 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 20:00:06,843 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 20:00:06,843 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 20:00:06,843 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 20:00:06,843 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 20:00:06,843 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 20:00:06,844 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-05 20:00:06,858 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 93 places, 85 transitions, 185 flow [2021-06-05 20:00:07,329 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 20:00:07,372 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 20:00:07,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-06-05 20:00:07,419 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:00:07,419 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 20:00:07,420 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:00:07,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:00:07,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1408065288, now seen corresponding path program 1 times [2021-06-05 20:00:07,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:00:07,433 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436495239] [2021-06-05 20:00:07,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:00:07,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:00:07,857 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 20:00:07,858 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:00:07,858 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436495239] [2021-06-05 20:00:07,859 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436495239] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:00:07,859 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:00:07,859 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 20:00:07,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691984488] [2021-06-05 20:00:07,863 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 20:00:07,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:00:07,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 20:00:07,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 20:00:07,899 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 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:00:08,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:00:08,153 INFO L93 Difference]: Finished difference Result 12224 states and 42408 transitions. [2021-06-05 20:00:08,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 20:00:08,155 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-06-05 20:00:08,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:00:08,272 INFO L225 Difference]: With dead ends: 12224 [2021-06-05 20:00:08,273 INFO L226 Difference]: Without dead ends: 4629 [2021-06-05 20:00:08,274 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 162.9ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 20:00:08,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4629 states. [2021-06-05 20:00:08,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4629 to 4629. [2021-06-05 20:00:08,512 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 20:00:08,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4629 states to 4629 states and 15668 transitions. [2021-06-05 20:00:08,535 INFO L78 Accepts]: Start accepts. Automaton has 4629 states and 15668 transitions. Word has length 50 [2021-06-05 20:00:08,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:00:08,536 INFO L482 AbstractCegarLoop]: Abstraction has 4629 states and 15668 transitions. [2021-06-05 20:00:08,537 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:00:08,537 INFO L276 IsEmpty]: Start isEmpty. Operand 4629 states and 15668 transitions. [2021-06-05 20:00:08,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-06-05 20:00:08,545 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:00:08,545 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 20:00:08,546 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 20:00:08,546 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:00:08,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:00:08,547 INFO L82 PathProgramCache]: Analyzing trace with hash 763919409, now seen corresponding path program 1 times [2021-06-05 20:00:08,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:00:08,547 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810110919] [2021-06-05 20:00:08,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:00:08,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:00:08,690 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 20:00:08,690 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:00:08,690 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810110919] [2021-06-05 20:00:08,691 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810110919] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:00:08,691 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:00:08,691 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 20:00:08,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89566578] [2021-06-05 20:00:08,692 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 20:00:08,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:00:08,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 20:00:08,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 20:00:08,693 INFO L87 Difference]: Start difference. First operand 4629 states and 15668 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 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 20:00:08,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:00:08,885 INFO L93 Difference]: Finished difference Result 5189 states and 17401 transitions. [2021-06-05 20:00:08,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 20:00:08,885 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 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 20:00:08,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:00:08,913 INFO L225 Difference]: With dead ends: 5189 [2021-06-05 20:00:08,913 INFO L226 Difference]: Without dead ends: 4209 [2021-06-05 20:00:08,914 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 109.1ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 20:00:08,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4209 states. [2021-06-05 20:00:09,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4209 to 4209. [2021-06-05 20:00:09,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4209 states, 4208 states have (on average 3.3583650190114067) internal successors, (14132), 4208 states have internal predecessors, (14132), 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 20:00:09,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4209 states to 4209 states and 14132 transitions. [2021-06-05 20:00:09,110 INFO L78 Accepts]: Start accepts. Automaton has 4209 states and 14132 transitions. Word has length 52 [2021-06-05 20:00:09,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:00:09,117 INFO L482 AbstractCegarLoop]: Abstraction has 4209 states and 14132 transitions. [2021-06-05 20:00:09,117 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 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 20:00:09,117 INFO L276 IsEmpty]: Start isEmpty. Operand 4209 states and 14132 transitions. [2021-06-05 20:00:09,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-06-05 20:00:09,130 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:00:09,130 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 20:00:09,130 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 20:00:09,130 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:00:09,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:00:09,138 INFO L82 PathProgramCache]: Analyzing trace with hash -1544842766, now seen corresponding path program 1 times [2021-06-05 20:00:09,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:00:09,138 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937161918] [2021-06-05 20:00:09,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:00:09,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:00:09,299 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 20:00:09,300 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:00:09,300 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937161918] [2021-06-05 20:00:09,300 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937161918] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:00:09,300 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:00:09,300 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 20:00:09,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41156437] [2021-06-05 20:00:09,301 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 20:00:09,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:00:09,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 20:00:09,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 20:00:09,305 INFO L87 Difference]: Start difference. First operand 4209 states and 14132 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 20:00:09,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:00:09,496 INFO L93 Difference]: Finished difference Result 5719 states and 18965 transitions. [2021-06-05 20:00:09,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 20:00:09,496 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 20:00:09,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:00:09,513 INFO L225 Difference]: With dead ends: 5719 [2021-06-05 20:00:09,513 INFO L226 Difference]: Without dead ends: 2814 [2021-06-05 20:00:09,513 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 141.9ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-05 20:00:09,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2814 states. [2021-06-05 20:00:09,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2814 to 2814. [2021-06-05 20:00:09,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2814 states, 2813 states have (on average 3.2214717383576255) internal successors, (9062), 2813 states have internal predecessors, (9062), 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 20:00:09,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2814 states to 2814 states and 9062 transitions. [2021-06-05 20:00:09,660 INFO L78 Accepts]: Start accepts. Automaton has 2814 states and 9062 transitions. Word has length 54 [2021-06-05 20:00:09,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:00:09,663 INFO L482 AbstractCegarLoop]: Abstraction has 2814 states and 9062 transitions. [2021-06-05 20:00:09,663 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 20:00:09,663 INFO L276 IsEmpty]: Start isEmpty. Operand 2814 states and 9062 transitions. [2021-06-05 20:00:09,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-06-05 20:00:09,670 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:00:09,670 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 20:00:09,670 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 20:00:09,670 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:00:09,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:00:09,672 INFO L82 PathProgramCache]: Analyzing trace with hash -1903793581, now seen corresponding path program 1 times [2021-06-05 20:00:09,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:00:09,672 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693968298] [2021-06-05 20:00:09,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:00:09,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:00:09,845 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 20:00:09,845 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:00:09,845 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693968298] [2021-06-05 20:00:09,845 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693968298] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:00:09,846 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:00:09,846 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 20:00:09,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888328563] [2021-06-05 20:00:09,846 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 20:00:09,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:00:09,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 20:00:09,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 20:00:09,852 INFO L87 Difference]: Start difference. First operand 2814 states and 9062 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 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 20:00:10,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:00:10,031 INFO L93 Difference]: Finished difference Result 3734 states and 12008 transitions. [2021-06-05 20:00:10,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 20:00:10,032 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 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 20:00:10,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:00:10,043 INFO L225 Difference]: With dead ends: 3734 [2021-06-05 20:00:10,043 INFO L226 Difference]: Without dead ends: 1974 [2021-06-05 20:00:10,043 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 147.0ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-05 20:00:10,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1974 states. [2021-06-05 20:00:10,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1974 to 1974. [2021-06-05 20:00:10,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1974 states, 1973 states have (on average 3.084642676127724) internal successors, (6086), 1973 states have internal predecessors, (6086), 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 20:00:10,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1974 states to 1974 states and 6086 transitions. [2021-06-05 20:00:10,098 INFO L78 Accepts]: Start accepts. Automaton has 1974 states and 6086 transitions. Word has length 57 [2021-06-05 20:00:10,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:00:10,100 INFO L482 AbstractCegarLoop]: Abstraction has 1974 states and 6086 transitions. [2021-06-05 20:00:10,100 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 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 20:00:10,101 INFO L276 IsEmpty]: Start isEmpty. Operand 1974 states and 6086 transitions. [2021-06-05 20:00:10,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-06-05 20:00:10,106 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:00:10,107 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, 1] [2021-06-05 20:00:10,107 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 20:00:10,107 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:00:10,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:00:10,111 INFO L82 PathProgramCache]: Analyzing trace with hash -234024779, now seen corresponding path program 1 times [2021-06-05 20:00:10,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:00:10,112 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254444406] [2021-06-05 20:00:10,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:00:10,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:00:10,248 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 20:00:10,249 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:00:10,249 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254444406] [2021-06-05 20:00:10,249 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254444406] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:00:10,249 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:00:10,249 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 20:00:10,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978718113] [2021-06-05 20:00:10,250 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 20:00:10,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:00:10,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 20:00:10,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 20:00:10,251 INFO L87 Difference]: Start difference. First operand 1974 states and 6086 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 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 20:00:10,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:00:10,384 INFO L93 Difference]: Finished difference Result 1814 states and 5558 transitions. [2021-06-05 20:00:10,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 20:00:10,384 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 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 20:00:10,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:00:10,385 INFO L225 Difference]: With dead ends: 1814 [2021-06-05 20:00:10,385 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 20:00:10,385 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 141.4ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-05 20:00:10,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 20:00:10,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 20:00:10,386 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 20:00:10,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 20:00:10,386 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2021-06-05 20:00:10,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:00:10,386 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 20:00:10,386 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 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 20:00:10,386 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 20:00:10,386 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 20:00:10,386 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 20:00:10,388 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 20:00:10,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 08:00:10 BasicIcfg [2021-06-05 20:00:10,390 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 20:00:10,391 INFO L168 Benchmark]: Toolchain (without parser) took 4739.08 ms. Allocated memory was 341.8 MB in the beginning and 817.9 MB in the end (delta: 476.1 MB). Free memory was 303.6 MB in the beginning and 654.6 MB in the end (delta: -351.1 MB). Peak memory consumption was 129.0 MB. Max. memory is 16.0 GB. [2021-06-05 20:00:10,391 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 341.8 MB. Free memory was 322.3 MB in the beginning and 322.2 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 20:00:10,392 INFO L168 Benchmark]: CACSL2BoogieTranslator took 495.47 ms. Allocated memory is still 341.8 MB. Free memory was 303.3 MB in the beginning and 304.7 MB in the end (delta: -1.4 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.0 GB. [2021-06-05 20:00:10,392 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.98 ms. Allocated memory is still 341.8 MB. Free memory was 304.7 MB in the beginning and 302.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 20:00:10,392 INFO L168 Benchmark]: Boogie Preprocessor took 19.19 ms. Allocated memory is still 341.8 MB. Free memory was 302.6 MB in the beginning and 301.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 20:00:10,393 INFO L168 Benchmark]: RCFGBuilder took 511.58 ms. Allocated memory is still 341.8 MB. Free memory was 301.6 MB in the beginning and 276.4 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-05 20:00:10,393 INFO L168 Benchmark]: TraceAbstraction took 3675.57 ms. Allocated memory was 341.8 MB in the beginning and 817.9 MB in the end (delta: 476.1 MB). Free memory was 276.4 MB in the beginning and 654.6 MB in the end (delta: -378.2 MB). Peak memory consumption was 101.0 MB. Max. memory is 16.0 GB. [2021-06-05 20:00:10,395 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 341.8 MB. Free memory was 322.3 MB in the beginning and 322.2 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 495.47 ms. Allocated memory is still 341.8 MB. Free memory was 303.3 MB in the beginning and 304.7 MB in the end (delta: -1.4 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 31.98 ms. Allocated memory is still 341.8 MB. Free memory was 304.7 MB in the beginning and 302.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 19.19 ms. Allocated memory is still 341.8 MB. Free memory was 302.6 MB in the beginning and 301.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 511.58 ms. Allocated memory is still 341.8 MB. Free memory was 301.6 MB in the beginning and 276.4 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3675.57 ms. Allocated memory was 341.8 MB in the beginning and 817.9 MB in the end (delta: 476.1 MB). Free memory was 276.4 MB in the beginning and 654.6 MB in the end (delta: -378.2 MB). Peak memory consumption was 101.0 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, 108 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3547.3ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 123.1ms, AutomataDifference: 1174.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 485.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 537 SDtfs, 735 SDslu, 1680 SDs, 0 SdLazy, 120 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 110.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 702.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9333occurred in iteration=0, InterpolantAutomatonStates: 48, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 648.6ms AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 59.0ms SsaConstructionTime, 154.4ms SatisfiabilityAnalysisTime, 715.9ms InterpolantComputationTime, 271 NumberOfCodeBlocks, 271 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 266 ConstructedInterpolants, 0 QuantifiedInterpolants, 786 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...