/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-atomic/szymanski.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-507b705 [2020-09-11 12:06:57,185 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-11 12:06:57,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-11 12:06:57,215 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-11 12:06:57,215 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-11 12:06:57,217 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-11 12:06:57,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-11 12:06:57,220 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-11 12:06:57,222 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-11 12:06:57,223 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-11 12:06:57,224 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-11 12:06:57,225 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-11 12:06:57,226 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-11 12:06:57,227 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-11 12:06:57,228 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-11 12:06:57,229 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-11 12:06:57,230 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-11 12:06:57,232 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-11 12:06:57,233 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-11 12:06:57,235 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-11 12:06:57,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-11 12:06:57,240 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-11 12:06:57,242 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-11 12:06:57,243 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-11 12:06:57,249 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-11 12:06:57,249 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-11 12:06:57,249 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-11 12:06:57,251 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-11 12:06:57,252 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-11 12:06:57,255 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-11 12:06:57,255 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-11 12:06:57,256 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-11 12:06:57,257 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-11 12:06:57,258 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-11 12:06:57,259 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-11 12:06:57,260 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-11 12:06:57,260 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-11 12:06:57,261 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-11 12:06:57,261 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-11 12:06:57,262 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-11 12:06:57,272 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-11 12:06:57,277 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-11 12:06:57,325 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-11 12:06:57,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-11 12:06:57,327 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-11 12:06:57,327 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-11 12:06:57,328 INFO L138 SettingsManager]: * Use SBE=true [2020-09-11 12:06:57,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-11 12:06:57,328 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-11 12:06:57,328 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-11 12:06:57,328 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-11 12:06:57,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-11 12:06:57,330 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-11 12:06:57,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-11 12:06:57,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-11 12:06:57,331 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-11 12:06:57,332 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-11 12:06:57,332 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-11 12:06:57,332 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-11 12:06:57,333 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-11 12:06:57,333 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-11 12:06:57,333 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-11 12:06:57,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-11 12:06:57,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-11 12:06:57,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-11 12:06:57,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-11 12:06:57,334 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-11 12:06:57,334 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-11 12:06:57,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-11 12:06:57,335 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-11 12:06:57,335 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-11 12:06:57,335 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-11 12:06:57,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-11 12:06:57,857 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-11 12:06:57,863 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-11 12:06:57,865 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-11 12:06:57,865 INFO L275 PluginConnector]: CDTParser initialized [2020-09-11 12:06:57,866 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/szymanski.i [2020-09-11 12:06:57,953 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/895c8a1f6/c4d14e426bce48dc80651d8c52b53aa8/FLAGfc2fb9189 [2020-09-11 12:06:58,617 INFO L306 CDTParser]: Found 1 translation units. [2020-09-11 12:06:58,618 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-atomic/szymanski.i [2020-09-11 12:06:58,634 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/895c8a1f6/c4d14e426bce48dc80651d8c52b53aa8/FLAGfc2fb9189 [2020-09-11 12:06:58,839 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/895c8a1f6/c4d14e426bce48dc80651d8c52b53aa8 [2020-09-11 12:06:58,852 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-11 12:06:58,858 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-11 12:06:58,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-11 12:06:58,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-11 12:06:58,864 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-11 12:06:58,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 12:06:58" (1/1) ... [2020-09-11 12:06:58,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3365e94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 12:06:58, skipping insertion in model container [2020-09-11 12:06:58,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 12:06:58" (1/1) ... [2020-09-11 12:06:58,879 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-11 12:06:58,929 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-11 12:06:59,465 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 12:06:59,478 INFO L203 MainTranslator]: Completed pre-run [2020-09-11 12:06:59,524 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 12:06:59,604 INFO L208 MainTranslator]: Completed translation [2020-09-11 12:06:59,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 12:06:59 WrapperNode [2020-09-11 12:06:59,605 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-11 12:06:59,606 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-11 12:06:59,606 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-11 12:06:59,606 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-11 12:06:59,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 12:06:59" (1/1) ... [2020-09-11 12:06:59,636 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 12:06:59" (1/1) ... [2020-09-11 12:06:59,661 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-11 12:06:59,661 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-11 12:06:59,662 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-11 12:06:59,662 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-11 12:06:59,672 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 12:06:59" (1/1) ... [2020-09-11 12:06:59,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 12:06:59" (1/1) ... [2020-09-11 12:06:59,676 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 12:06:59" (1/1) ... [2020-09-11 12:06:59,676 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 12:06:59" (1/1) ... [2020-09-11 12:06:59,682 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 12:06:59" (1/1) ... [2020-09-11 12:06:59,691 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 12:06:59" (1/1) ... [2020-09-11 12:06:59,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 12:06:59" (1/1) ... [2020-09-11 12:06:59,697 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-11 12:06:59,698 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-11 12:06:59,698 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-11 12:06:59,698 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-11 12:06:59,699 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 12:06:59" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-11 12:06:59,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-11 12:06:59,778 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-09-11 12:06:59,778 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-09-11 12:06:59,778 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-09-11 12:06:59,779 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-09-11 12:06:59,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-11 12:06:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-11 12:06:59,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-11 12:06:59,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-11 12:06:59,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-11 12:06:59,784 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-11 12:07:00,157 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-11 12:07:00,157 INFO L295 CfgBuilder]: Removed 12 assume(true) statements. [2020-09-11 12:07:00,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 12:07:00 BoogieIcfgContainer [2020-09-11 12:07:00,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-11 12:07:00,169 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-11 12:07:00,170 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-11 12:07:00,175 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-11 12:07:00,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 12:06:58" (1/3) ... [2020-09-11 12:07:00,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@486d0c6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 12:07:00, skipping insertion in model container [2020-09-11 12:07:00,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 12:06:59" (2/3) ... [2020-09-11 12:07:00,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@486d0c6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 12:07:00, skipping insertion in model container [2020-09-11 12:07:00,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 12:07:00" (3/3) ... [2020-09-11 12:07:00,180 INFO L109 eAbstractionObserver]: Analyzing ICFG szymanski.i [2020-09-11 12:07:00,191 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-11 12:07:00,191 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-11 12:07:00,200 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-09-11 12:07:00,202 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-11 12:07:00,230 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:07:00,231 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:07:00,231 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:07:00,231 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:07:00,233 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:07:00,233 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:07:00,234 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:07:00,234 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:07:00,234 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:07:00,235 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:07:00,236 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:07:00,236 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:07:00,241 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:07:00,241 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:07:00,242 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:07:00,242 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:07:00,250 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:07:00,250 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:07:00,250 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:07:00,251 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:07:00,300 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-09-11 12:07:00,327 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-11 12:07:00,327 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-11 12:07:00,327 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-11 12:07:00,328 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-11 12:07:00,328 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-11 12:07:00,328 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-11 12:07:00,328 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-11 12:07:00,328 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-11 12:07:00,345 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 87 transitions, 196 flow [2020-09-11 12:07:00,347 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 72 places, 87 transitions, 196 flow [2020-09-11 12:07:00,394 INFO L129 PetriNetUnfolder]: 21/87 cut-off events. [2020-09-11 12:07:00,394 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-09-11 12:07:00,402 INFO L80 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 87 events. 21/87 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 96 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 65. Up to 3 conditions per place. [2020-09-11 12:07:00,406 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 72 places, 87 transitions, 196 flow [2020-09-11 12:07:00,434 INFO L129 PetriNetUnfolder]: 21/87 cut-off events. [2020-09-11 12:07:00,434 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-09-11 12:07:00,435 INFO L80 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 87 events. 21/87 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 96 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 65. Up to 3 conditions per place. [2020-09-11 12:07:00,438 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2160 [2020-09-11 12:07:00,439 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-11 12:07:01,506 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4147 [2020-09-11 12:07:01,507 INFO L214 etLargeBlockEncoding]: Total number of compositions: 38 [2020-09-11 12:07:01,512 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 46 places, 59 transitions, 140 flow [2020-09-11 12:07:01,550 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 509 states. [2020-09-11 12:07:01,553 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states. [2020-09-11 12:07:01,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-11 12:07:01,563 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 12:07:01,564 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 12:07:01,565 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 12:07:01,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 12:07:01,572 INFO L82 PathProgramCache]: Analyzing trace with hash -223988154, now seen corresponding path program 1 times [2020-09-11 12:07:01,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 12:07:01,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453558410] [2020-09-11 12:07:01,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 12:07:01,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 12:07:01,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 12:07:01,785 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453558410] [2020-09-11 12:07:01,786 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 12:07:01,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 12:07:01,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374807122] [2020-09-11 12:07:01,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-11 12:07:01,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 12:07:01,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-11 12:07:01,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-11 12:07:01,820 INFO L87 Difference]: Start difference. First operand 509 states. Second operand 2 states. [2020-09-11 12:07:01,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 12:07:01,868 INFO L93 Difference]: Finished difference Result 509 states and 1466 transitions. [2020-09-11 12:07:01,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-11 12:07:01,870 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-09-11 12:07:01,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 12:07:01,895 INFO L225 Difference]: With dead ends: 509 [2020-09-11 12:07:01,896 INFO L226 Difference]: Without dead ends: 470 [2020-09-11 12:07:01,897 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-11 12:07:01,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2020-09-11 12:07:01,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 470. [2020-09-11 12:07:01,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 470 states. [2020-09-11 12:07:01,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 1363 transitions. [2020-09-11 12:07:02,001 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 1363 transitions. Word has length 8 [2020-09-11 12:07:02,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 12:07:02,001 INFO L479 AbstractCegarLoop]: Abstraction has 470 states and 1363 transitions. [2020-09-11 12:07:02,001 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-11 12:07:02,002 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 1363 transitions. [2020-09-11 12:07:02,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-11 12:07:02,003 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 12:07:02,004 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 12:07:02,004 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-11 12:07:02,004 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 12:07:02,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 12:07:02,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1417283260, now seen corresponding path program 1 times [2020-09-11 12:07:02,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 12:07:02,006 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199313364] [2020-09-11 12:07:02,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 12:07:02,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 12:07:02,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 12:07:02,117 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199313364] [2020-09-11 12:07:02,117 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 12:07:02,118 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 12:07:02,118 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570041358] [2020-09-11 12:07:02,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 12:07:02,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 12:07:02,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 12:07:02,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 12:07:02,121 INFO L87 Difference]: Start difference. First operand 470 states and 1363 transitions. Second operand 3 states. [2020-09-11 12:07:02,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 12:07:02,159 INFO L93 Difference]: Finished difference Result 481 states and 1359 transitions. [2020-09-11 12:07:02,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 12:07:02,159 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-09-11 12:07:02,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 12:07:02,164 INFO L225 Difference]: With dead ends: 481 [2020-09-11 12:07:02,164 INFO L226 Difference]: Without dead ends: 391 [2020-09-11 12:07:02,165 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 12:07:02,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2020-09-11 12:07:02,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 373. [2020-09-11 12:07:02,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2020-09-11 12:07:02,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 1071 transitions. [2020-09-11 12:07:02,198 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 1071 transitions. Word has length 10 [2020-09-11 12:07:02,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 12:07:02,199 INFO L479 AbstractCegarLoop]: Abstraction has 373 states and 1071 transitions. [2020-09-11 12:07:02,199 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 12:07:02,223 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 1071 transitions. [2020-09-11 12:07:02,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-11 12:07:02,225 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 12:07:02,225 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 12:07:02,225 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-11 12:07:02,225 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 12:07:02,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 12:07:02,226 INFO L82 PathProgramCache]: Analyzing trace with hash -2015895147, now seen corresponding path program 1 times [2020-09-11 12:07:02,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 12:07:02,227 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621357374] [2020-09-11 12:07:02,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 12:07:02,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 12:07:02,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 12:07:02,293 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621357374] [2020-09-11 12:07:02,294 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 12:07:02,294 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 12:07:02,294 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906515441] [2020-09-11 12:07:02,295 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 12:07:02,295 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 12:07:02,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 12:07:02,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 12:07:02,296 INFO L87 Difference]: Start difference. First operand 373 states and 1071 transitions. Second operand 3 states. [2020-09-11 12:07:02,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 12:07:02,315 INFO L93 Difference]: Finished difference Result 360 states and 1018 transitions. [2020-09-11 12:07:02,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 12:07:02,316 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-09-11 12:07:02,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 12:07:02,319 INFO L225 Difference]: With dead ends: 360 [2020-09-11 12:07:02,319 INFO L226 Difference]: Without dead ends: 264 [2020-09-11 12:07:02,319 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 12:07:02,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-09-11 12:07:02,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2020-09-11 12:07:02,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-09-11 12:07:02,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 749 transitions. [2020-09-11 12:07:02,333 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 749 transitions. Word has length 12 [2020-09-11 12:07:02,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 12:07:02,334 INFO L479 AbstractCegarLoop]: Abstraction has 264 states and 749 transitions. [2020-09-11 12:07:02,334 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 12:07:02,334 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 749 transitions. [2020-09-11 12:07:02,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-11 12:07:02,337 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 12:07:02,337 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 12:07:02,337 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-11 12:07:02,337 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 12:07:02,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 12:07:02,338 INFO L82 PathProgramCache]: Analyzing trace with hash 573136511, now seen corresponding path program 1 times [2020-09-11 12:07:02,338 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 12:07:02,338 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988606753] [2020-09-11 12:07:02,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 12:07:02,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 12:07:02,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 12:07:02,388 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988606753] [2020-09-11 12:07:02,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 12:07:02,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 12:07:02,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369076516] [2020-09-11 12:07:02,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 12:07:02,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 12:07:02,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 12:07:02,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 12:07:02,390 INFO L87 Difference]: Start difference. First operand 264 states and 749 transitions. Second operand 3 states. [2020-09-11 12:07:02,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 12:07:02,428 INFO L93 Difference]: Finished difference Result 292 states and 809 transitions. [2020-09-11 12:07:02,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 12:07:02,429 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-09-11 12:07:02,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 12:07:02,431 INFO L225 Difference]: With dead ends: 292 [2020-09-11 12:07:02,432 INFO L226 Difference]: Without dead ends: 280 [2020-09-11 12:07:02,432 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 12:07:02,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-09-11 12:07:02,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2020-09-11 12:07:02,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-09-11 12:07:02,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 773 transitions. [2020-09-11 12:07:02,442 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 773 transitions. Word has length 19 [2020-09-11 12:07:02,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 12:07:02,443 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 773 transitions. [2020-09-11 12:07:02,443 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 12:07:02,443 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 773 transitions. [2020-09-11 12:07:02,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-11 12:07:02,445 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 12:07:02,445 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 12:07:02,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-11 12:07:02,446 INFO L427 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 12:07:02,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 12:07:02,446 INFO L82 PathProgramCache]: Analyzing trace with hash -1551241601, now seen corresponding path program 2 times [2020-09-11 12:07:02,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 12:07:02,447 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113646050] [2020-09-11 12:07:02,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 12:07:02,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 12:07:02,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 12:07:02,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113646050] [2020-09-11 12:07:02,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 12:07:02,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 12:07:02,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040725401] [2020-09-11 12:07:02,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 12:07:02,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 12:07:02,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 12:07:02,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 12:07:02,497 INFO L87 Difference]: Start difference. First operand 280 states and 773 transitions. Second operand 3 states. [2020-09-11 12:07:02,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 12:07:02,534 INFO L93 Difference]: Finished difference Result 312 states and 828 transitions. [2020-09-11 12:07:02,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 12:07:02,535 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-09-11 12:07:02,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 12:07:02,537 INFO L225 Difference]: With dead ends: 312 [2020-09-11 12:07:02,537 INFO L226 Difference]: Without dead ends: 230 [2020-09-11 12:07:02,537 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 12:07:02,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-09-11 12:07:02,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 226. [2020-09-11 12:07:02,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-09-11 12:07:02,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 555 transitions. [2020-09-11 12:07:02,545 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 555 transitions. Word has length 19 [2020-09-11 12:07:02,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 12:07:02,546 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 555 transitions. [2020-09-11 12:07:02,546 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 12:07:02,546 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 555 transitions. [2020-09-11 12:07:02,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-11 12:07:02,547 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 12:07:02,547 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 12:07:02,548 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-11 12:07:02,548 INFO L427 AbstractCegarLoop]: === Iteration 6 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 12:07:02,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 12:07:02,548 INFO L82 PathProgramCache]: Analyzing trace with hash 926221059, now seen corresponding path program 3 times [2020-09-11 12:07:02,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 12:07:02,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170650414] [2020-09-11 12:07:02,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 12:07:02,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 12:07:02,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 12:07:02,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170650414] [2020-09-11 12:07:02,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 12:07:02,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 12:07:02,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455672710] [2020-09-11 12:07:02,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 12:07:02,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 12:07:02,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 12:07:02,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 12:07:02,595 INFO L87 Difference]: Start difference. First operand 226 states and 555 transitions. Second operand 3 states. [2020-09-11 12:07:02,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 12:07:02,628 INFO L93 Difference]: Finished difference Result 210 states and 499 transitions. [2020-09-11 12:07:02,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 12:07:02,629 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-09-11 12:07:02,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 12:07:02,631 INFO L225 Difference]: With dead ends: 210 [2020-09-11 12:07:02,631 INFO L226 Difference]: Without dead ends: 210 [2020-09-11 12:07:02,631 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 12:07:02,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-09-11 12:07:02,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2020-09-11 12:07:02,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-09-11 12:07:02,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 499 transitions. [2020-09-11 12:07:02,638 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 499 transitions. Word has length 19 [2020-09-11 12:07:02,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 12:07:02,639 INFO L479 AbstractCegarLoop]: Abstraction has 210 states and 499 transitions. [2020-09-11 12:07:02,639 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 12:07:02,639 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 499 transitions. [2020-09-11 12:07:02,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-11 12:07:02,640 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 12:07:02,640 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 12:07:02,640 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-11 12:07:02,641 INFO L427 AbstractCegarLoop]: === Iteration 7 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 12:07:02,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 12:07:02,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1185214475, now seen corresponding path program 4 times [2020-09-11 12:07:02,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 12:07:02,642 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121993912] [2020-09-11 12:07:02,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 12:07:02,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 12:07:02,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 12:07:02,677 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121993912] [2020-09-11 12:07:02,678 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 12:07:02,678 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 12:07:02,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323054480] [2020-09-11 12:07:02,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 12:07:02,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 12:07:02,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 12:07:02,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 12:07:02,679 INFO L87 Difference]: Start difference. First operand 210 states and 499 transitions. Second operand 3 states. [2020-09-11 12:07:02,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 12:07:02,701 INFO L93 Difference]: Finished difference Result 160 states and 390 transitions. [2020-09-11 12:07:02,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 12:07:02,702 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-09-11 12:07:02,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 12:07:02,702 INFO L225 Difference]: With dead ends: 160 [2020-09-11 12:07:02,703 INFO L226 Difference]: Without dead ends: 0 [2020-09-11 12:07:02,703 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 12:07:02,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-11 12:07:02,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-11 12:07:02,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-11 12:07:02,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-11 12:07:02,704 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-09-11 12:07:02,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 12:07:02,704 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-11 12:07:02,705 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 12:07:02,705 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-11 12:07:02,705 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-11 12:07:02,705 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-11 12:07:02,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 12:07:02 BasicIcfg [2020-09-11 12:07:02,710 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-11 12:07:02,713 INFO L168 Benchmark]: Toolchain (without parser) took 3858.19 ms. Allocated memory was 144.2 MB in the beginning and 254.3 MB in the end (delta: 110.1 MB). Free memory was 99.1 MB in the beginning and 151.5 MB in the end (delta: -52.5 MB). Peak memory consumption was 57.6 MB. Max. memory is 7.1 GB. [2020-09-11 12:07:02,714 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 144.2 MB. Free memory was 118.7 MB in the beginning and 118.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-11 12:07:02,715 INFO L168 Benchmark]: CACSL2BoogieTranslator took 746.17 ms. Allocated memory was 144.2 MB in the beginning and 200.3 MB in the end (delta: 56.1 MB). Free memory was 98.4 MB in the beginning and 160.3 MB in the end (delta: -62.0 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2020-09-11 12:07:02,716 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.27 ms. Allocated memory is still 200.3 MB. Free memory was 160.3 MB in the beginning and 158.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-09-11 12:07:02,717 INFO L168 Benchmark]: Boogie Preprocessor took 35.88 ms. Allocated memory is still 200.3 MB. Free memory was 158.2 MB in the beginning and 156.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-09-11 12:07:02,718 INFO L168 Benchmark]: RCFGBuilder took 465.86 ms. Allocated memory is still 200.3 MB. Free memory was 156.8 MB in the beginning and 134.4 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-09-11 12:07:02,719 INFO L168 Benchmark]: TraceAbstraction took 2540.66 ms. Allocated memory was 200.3 MB in the beginning and 254.3 MB in the end (delta: 54.0 MB). Free memory was 133.7 MB in the beginning and 151.5 MB in the end (delta: -17.8 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. [2020-09-11 12:07:02,723 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 144.2 MB. Free memory was 118.7 MB in the beginning and 118.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 746.17 ms. Allocated memory was 144.2 MB in the beginning and 200.3 MB in the end (delta: 56.1 MB). Free memory was 98.4 MB in the beginning and 160.3 MB in the end (delta: -62.0 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 55.27 ms. Allocated memory is still 200.3 MB. Free memory was 160.3 MB in the beginning and 158.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 35.88 ms. Allocated memory is still 200.3 MB. Free memory was 158.2 MB in the beginning and 156.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 465.86 ms. Allocated memory is still 200.3 MB. Free memory was 156.8 MB in the beginning and 134.4 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2540.66 ms. Allocated memory was 200.3 MB in the beginning and 254.3 MB in the end (delta: 54.0 MB). Free memory was 133.7 MB in the beginning and 151.5 MB in the end (delta: -17.8 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.1s, 72 ProgramPointsBefore, 46 ProgramPointsAfterwards, 87 TransitionsBefore, 59 TransitionsAfterwards, 2160 CoEnabledTransitionPairs, 5 FixpointIterations, 16 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 686 VarBasedMoverChecksPositive, 97 VarBasedMoverChecksNegative, 75 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 4147 CheckedPairsTotal, 38 TotalNumberOfCompositions - PositiveResult [Line: 702]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 686]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 66 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.3s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.2s, HoareTripleCheckerStatistics: 367 SDtfs, 133 SDslu, 141 SDs, 0 SdLazy, 82 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=509occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 22 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 2127 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...