/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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 02:37:04,132 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 02:37:04,134 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 02:37:04,152 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 02:37:04,152 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 02:37:04,154 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 02:37:04,156 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 02:37:04,169 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 02:37:04,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 02:37:04,172 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 02:37:04,175 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 02:37:04,176 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 02:37:04,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 02:37:04,179 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 02:37:04,181 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 02:37:04,183 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 02:37:04,185 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 02:37:04,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 02:37:04,189 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 02:37:04,192 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 02:37:04,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 02:37:04,197 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 02:37:04,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 02:37:04,199 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 02:37:04,202 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 02:37:04,203 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 02:37:04,203 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 02:37:04,205 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 02:37:04,206 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 02:37:04,208 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 02:37:04,208 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 02:37:04,209 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 02:37:04,210 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 02:37:04,211 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 02:37:04,213 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 02:37:04,213 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 02:37:04,214 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 02:37:04,214 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 02:37:04,215 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 02:37:04,218 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 02:37:04,220 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 02:37:04,221 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-VariableLbe.epf [2020-04-18 02:37:04,246 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 02:37:04,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 02:37:04,249 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 02:37:04,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 02:37:04,249 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 02:37:04,249 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 02:37:04,250 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 02:37:04,250 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 02:37:04,250 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 02:37:04,250 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 02:37:04,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 02:37:04,251 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 02:37:04,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 02:37:04,252 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 02:37:04,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 02:37:04,253 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 02:37:04,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 02:37:04,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 02:37:04,253 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 02:37:04,253 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 02:37:04,254 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 02:37:04,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 02:37:04,254 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 02:37:04,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 02:37:04,254 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 02:37:04,255 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-18 02:37:04,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 02:37:04,255 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-04-18 02:37:04,255 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 02:37:04,255 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 02:37:04,551 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 02:37:04,572 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 02:37:04,576 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 02:37:04,577 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 02:37:04,578 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 02:37:04,579 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i [2020-04-18 02:37:04,658 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77e52aa29/aa86de062af0464e871f4a5ddba63484/FLAG4cc77051d [2020-04-18 02:37:05,242 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 02:37:05,244 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i [2020-04-18 02:37:05,268 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77e52aa29/aa86de062af0464e871f4a5ddba63484/FLAG4cc77051d [2020-04-18 02:37:05,575 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77e52aa29/aa86de062af0464e871f4a5ddba63484 [2020-04-18 02:37:05,583 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 02:37:05,599 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 02:37:05,600 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 02:37:05,601 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 02:37:05,604 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 02:37:05,605 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 02:37:05" (1/1) ... [2020-04-18 02:37:05,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23a768f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:37:05, skipping insertion in model container [2020-04-18 02:37:05,608 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 02:37:05" (1/1) ... [2020-04-18 02:37:05,616 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 02:37:05,669 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 02:37:06,174 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 02:37:06,190 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 02:37:06,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 02:37:06,348 INFO L208 MainTranslator]: Completed translation [2020-04-18 02:37:06,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:37:06 WrapperNode [2020-04-18 02:37:06,349 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 02:37:06,350 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 02:37:06,350 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 02:37:06,350 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 02:37:06,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:37:06" (1/1) ... [2020-04-18 02:37:06,379 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:37:06" (1/1) ... [2020-04-18 02:37:06,402 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 02:37:06,402 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 02:37:06,402 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 02:37:06,403 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 02:37:06,412 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:37:06" (1/1) ... [2020-04-18 02:37:06,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:37:06" (1/1) ... [2020-04-18 02:37:06,415 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:37:06" (1/1) ... [2020-04-18 02:37:06,415 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:37:06" (1/1) ... [2020-04-18 02:37:06,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:37:06" (1/1) ... [2020-04-18 02:37:06,424 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:37:06" (1/1) ... [2020-04-18 02:37:06,426 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:37:06" (1/1) ... [2020-04-18 02:37:06,429 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 02:37:06,430 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 02:37:06,430 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 02:37:06,430 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 02:37:06,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:37:06" (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 [2020-04-18 02:37:06,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 02:37:06,489 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 02:37:06,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 02:37:06,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 02:37:06,489 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 02:37:06,489 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 02:37:06,490 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 02:37:06,490 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 02:37:06,490 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 02:37:06,490 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 02:37:06,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 02:37:06,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 02:37:06,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 02:37:06,493 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 02:37:06,912 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 02:37:06,912 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 02:37:06,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 02:37:06 BoogieIcfgContainer [2020-04-18 02:37:06,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 02:37:06,920 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 02:37:06,920 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 02:37:06,929 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 02:37:06,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 02:37:05" (1/3) ... [2020-04-18 02:37:06,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10c903dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 02:37:06, skipping insertion in model container [2020-04-18 02:37:06,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:37:06" (2/3) ... [2020-04-18 02:37:06,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10c903dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 02:37:06, skipping insertion in model container [2020-04-18 02:37:06,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 02:37:06" (3/3) ... [2020-04-18 02:37:06,932 INFO L109 eAbstractionObserver]: Analyzing ICFG safe024_tso.opt.i [2020-04-18 02:37:06,940 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 02:37:06,940 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 02:37:06,946 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 02:37:06,947 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 02:37:06,972 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:37:06,972 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:37:06,972 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:37:06,973 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:37:06,974 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:37:06,974 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:37:06,974 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:37:06,975 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:37:06,975 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:37:06,975 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:37:06,975 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:37:06,976 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:37:06,976 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:37:06,976 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:37:06,977 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:37:06,977 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:37:06,977 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:37:06,978 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:37:06,982 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:37:06,982 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:37:06,983 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:37:06,983 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:37:06,997 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:37:06,997 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:37:06,998 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:37:06,998 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:37:07,001 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:37:07,001 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:37:07,001 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:37:07,002 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:37:07,022 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 02:37:07,039 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 02:37:07,040 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 02:37:07,040 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 02:37:07,040 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 02:37:07,040 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 02:37:07,041 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 02:37:07,041 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 02:37:07,041 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 02:37:07,066 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-04-18 02:37:07,068 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-04-18 02:37:07,132 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-04-18 02:37:07,133 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 02:37:07,140 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-18 02:37:07,146 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-04-18 02:37:07,179 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-04-18 02:37:07,179 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 02:37:07,180 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-18 02:37:07,182 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-04-18 02:37:07,183 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 02:37:08,814 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2585 [2020-04-18 02:37:08,815 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-04-18 02:37:08,819 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-04-18 02:37:08,843 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-04-18 02:37:08,845 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-04-18 02:37:08,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 02:37:08,853 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:37:08,854 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:37:08,854 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:37:08,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:37:08,860 INFO L82 PathProgramCache]: Analyzing trace with hash -595431234, now seen corresponding path program 1 times [2020-04-18 02:37:08,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:37:08,870 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64813384] [2020-04-18 02:37:08,870 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:37:08,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:37:09,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:37:09,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64813384] [2020-04-18 02:37:09,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:37:09,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-18 02:37:09,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079258566] [2020-04-18 02:37:09,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 02:37:09,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:37:09,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 02:37:09,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 02:37:09,098 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-04-18 02:37:09,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:37:09,146 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-04-18 02:37:09,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 02:37:09,148 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-04-18 02:37:09,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:37:09,182 INFO L225 Difference]: With dead ends: 282 [2020-04-18 02:37:09,183 INFO L226 Difference]: Without dead ends: 218 [2020-04-18 02:37:09,184 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 02:37:09,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-04-18 02:37:09,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-04-18 02:37:09,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-04-18 02:37:09,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-04-18 02:37:09,292 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-04-18 02:37:09,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:37:09,293 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-04-18 02:37:09,293 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 02:37:09,293 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-04-18 02:37:09,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 02:37:09,295 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:37:09,295 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:37:09,295 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:37:09,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:37:09,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1278499900, now seen corresponding path program 1 times [2020-04-18 02:37:09,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:37:09,296 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305594847] [2020-04-18 02:37:09,296 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:37:09,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:37:09,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:37:09,387 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305594847] [2020-04-18 02:37:09,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:37:09,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:37:09,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088292348] [2020-04-18 02:37:09,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:37:09,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:37:09,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:37:09,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:37:09,390 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-04-18 02:37:09,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:37:09,431 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-04-18 02:37:09,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 02:37:09,432 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-04-18 02:37:09,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:37:09,434 INFO L225 Difference]: With dead ends: 242 [2020-04-18 02:37:09,435 INFO L226 Difference]: Without dead ends: 146 [2020-04-18 02:37:09,436 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:37:09,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-04-18 02:37:09,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-04-18 02:37:09,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-04-18 02:37:09,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-04-18 02:37:09,447 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 9 [2020-04-18 02:37:09,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:37:09,447 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-04-18 02:37:09,447 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:37:09,447 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-04-18 02:37:09,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-18 02:37:09,449 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:37:09,449 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:37:09,449 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:37:09,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:37:09,449 INFO L82 PathProgramCache]: Analyzing trace with hash -453706064, now seen corresponding path program 1 times [2020-04-18 02:37:09,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:37:09,450 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43115853] [2020-04-18 02:37:09,450 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:37:09,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:37:09,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:37:09,556 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43115853] [2020-04-18 02:37:09,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:37:09,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:37:09,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088892323] [2020-04-18 02:37:09,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:37:09,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:37:09,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:37:09,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:37:09,558 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 4 states. [2020-04-18 02:37:09,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:37:09,605 INFO L93 Difference]: Finished difference Result 165 states and 377 transitions. [2020-04-18 02:37:09,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 02:37:09,605 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-04-18 02:37:09,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:37:09,607 INFO L225 Difference]: With dead ends: 165 [2020-04-18 02:37:09,607 INFO L226 Difference]: Without dead ends: 125 [2020-04-18 02:37:09,607 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:37:09,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-04-18 02:37:09,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-04-18 02:37:09,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-04-18 02:37:09,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 284 transitions. [2020-04-18 02:37:09,615 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 284 transitions. Word has length 11 [2020-04-18 02:37:09,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:37:09,616 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 284 transitions. [2020-04-18 02:37:09,616 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:37:09,616 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 284 transitions. [2020-04-18 02:37:09,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 02:37:09,617 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:37:09,617 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:37:09,617 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:37:09,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:37:09,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1227187402, now seen corresponding path program 1 times [2020-04-18 02:37:09,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:37:09,618 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671089992] [2020-04-18 02:37:09,619 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:37:09,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:37:09,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:37:09,704 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671089992] [2020-04-18 02:37:09,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:37:09,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 02:37:09,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397922143] [2020-04-18 02:37:09,705 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 02:37:09,706 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:37:09,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 02:37:09,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:37:09,706 INFO L87 Difference]: Start difference. First operand 125 states and 284 transitions. Second operand 5 states. [2020-04-18 02:37:09,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:37:09,750 INFO L93 Difference]: Finished difference Result 122 states and 258 transitions. [2020-04-18 02:37:09,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 02:37:09,750 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-04-18 02:37:09,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:37:09,752 INFO L225 Difference]: With dead ends: 122 [2020-04-18 02:37:09,752 INFO L226 Difference]: Without dead ends: 97 [2020-04-18 02:37:09,752 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-18 02:37:09,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-04-18 02:37:09,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-04-18 02:37:09,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-04-18 02:37:09,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 202 transitions. [2020-04-18 02:37:09,759 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 202 transitions. Word has length 12 [2020-04-18 02:37:09,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:37:09,759 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 202 transitions. [2020-04-18 02:37:09,759 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 02:37:09,760 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 202 transitions. [2020-04-18 02:37:09,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 02:37:09,761 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:37:09,761 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:37:09,761 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:37:09,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:37:09,762 INFO L82 PathProgramCache]: Analyzing trace with hash 1770525280, now seen corresponding path program 1 times [2020-04-18 02:37:09,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:37:09,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737834538] [2020-04-18 02:37:09,762 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:37:09,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:37:09,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:37:09,874 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737834538] [2020-04-18 02:37:09,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:37:09,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 02:37:09,875 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948646130] [2020-04-18 02:37:09,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 02:37:09,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:37:09,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 02:37:09,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-18 02:37:09,876 INFO L87 Difference]: Start difference. First operand 97 states and 202 transitions. Second operand 6 states. [2020-04-18 02:37:09,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:37:09,975 INFO L93 Difference]: Finished difference Result 92 states and 190 transitions. [2020-04-18 02:37:09,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-18 02:37:09,976 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-04-18 02:37:09,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:37:09,977 INFO L225 Difference]: With dead ends: 92 [2020-04-18 02:37:09,978 INFO L226 Difference]: Without dead ends: 84 [2020-04-18 02:37:09,979 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-04-18 02:37:09,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-04-18 02:37:09,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-04-18 02:37:09,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-04-18 02:37:09,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 176 transitions. [2020-04-18 02:37:09,995 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 176 transitions. Word has length 14 [2020-04-18 02:37:09,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:37:09,999 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 176 transitions. [2020-04-18 02:37:09,999 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 02:37:09,999 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 176 transitions. [2020-04-18 02:37:10,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 02:37:10,001 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:37:10,001 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:37:10,001 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:37:10,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:37:10,002 INFO L82 PathProgramCache]: Analyzing trace with hash -793372783, now seen corresponding path program 1 times [2020-04-18 02:37:10,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:37:10,004 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899639272] [2020-04-18 02:37:10,004 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:37:10,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:37:10,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:37:10,095 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899639272] [2020-04-18 02:37:10,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:37:10,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 02:37:10,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610777087] [2020-04-18 02:37:10,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:37:10,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:37:10,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:37:10,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:37:10,097 INFO L87 Difference]: Start difference. First operand 84 states and 176 transitions. Second operand 4 states. [2020-04-18 02:37:10,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:37:10,111 INFO L93 Difference]: Finished difference Result 115 states and 234 transitions. [2020-04-18 02:37:10,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 02:37:10,112 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-04-18 02:37:10,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:37:10,113 INFO L225 Difference]: With dead ends: 115 [2020-04-18 02:37:10,113 INFO L226 Difference]: Without dead ends: 54 [2020-04-18 02:37:10,114 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:37:10,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-04-18 02:37:10,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-04-18 02:37:10,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-04-18 02:37:10,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2020-04-18 02:37:10,118 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 17 [2020-04-18 02:37:10,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:37:10,118 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2020-04-18 02:37:10,118 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:37:10,118 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2020-04-18 02:37:10,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 02:37:10,119 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:37:10,119 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:37:10,119 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:37:10,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:37:10,120 INFO L82 PathProgramCache]: Analyzing trace with hash -1598285289, now seen corresponding path program 2 times [2020-04-18 02:37:10,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:37:10,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517354091] [2020-04-18 02:37:10,121 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:37:10,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:37:10,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:37:10,162 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517354091] [2020-04-18 02:37:10,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:37:10,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 02:37:10,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4393953] [2020-04-18 02:37:10,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:37:10,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:37:10,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:37:10,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:37:10,164 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand 4 states. [2020-04-18 02:37:10,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:37:10,181 INFO L93 Difference]: Finished difference Result 53 states and 97 transitions. [2020-04-18 02:37:10,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 02:37:10,181 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-04-18 02:37:10,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:37:10,182 INFO L225 Difference]: With dead ends: 53 [2020-04-18 02:37:10,182 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 02:37:10,182 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:37:10,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 02:37:10,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 02:37:10,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 02:37:10,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 02:37:10,184 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-04-18 02:37:10,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:37:10,184 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 02:37:10,184 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:37:10,185 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 02:37:10,185 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 02:37:10,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 02:37:10 BasicIcfg [2020-04-18 02:37:10,188 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 02:37:10,191 INFO L168 Benchmark]: Toolchain (without parser) took 4605.95 ms. Allocated memory was 138.9 MB in the beginning and 245.9 MB in the end (delta: 107.0 MB). Free memory was 102.0 MB in the beginning and 190.2 MB in the end (delta: -88.2 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. [2020-04-18 02:37:10,192 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 138.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-04-18 02:37:10,193 INFO L168 Benchmark]: CACSL2BoogieTranslator took 748.83 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 100.0 MB in the beginning and 157.8 MB in the end (delta: -57.8 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2020-04-18 02:37:10,193 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.32 ms. Allocated memory is still 202.9 MB. Free memory was 157.8 MB in the beginning and 155.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-04-18 02:37:10,194 INFO L168 Benchmark]: Boogie Preprocessor took 27.42 ms. Allocated memory is still 202.9 MB. Free memory was 155.6 MB in the beginning and 154.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-18 02:37:10,195 INFO L168 Benchmark]: RCFGBuilder took 488.82 ms. Allocated memory is still 202.9 MB. Free memory was 153.6 MB in the beginning and 131.5 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-04-18 02:37:10,196 INFO L168 Benchmark]: TraceAbstraction took 3268.44 ms. Allocated memory was 202.9 MB in the beginning and 245.9 MB in the end (delta: 43.0 MB). Free memory was 131.5 MB in the beginning and 190.2 MB in the end (delta: -58.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-04-18 02:37:10,201 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 138.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 748.83 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 100.0 MB in the beginning and 157.8 MB in the end (delta: -57.8 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.32 ms. Allocated memory is still 202.9 MB. Free memory was 157.8 MB in the beginning and 155.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.42 ms. Allocated memory is still 202.9 MB. Free memory was 155.6 MB in the beginning and 154.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 488.82 ms. Allocated memory is still 202.9 MB. Free memory was 153.6 MB in the beginning and 131.5 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3268.44 ms. Allocated memory was 202.9 MB in the beginning and 245.9 MB in the end (delta: 43.0 MB). Free memory was 131.5 MB in the beginning and 190.2 MB in the end (delta: -58.7 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 79 ProgramPointsBefore, 31 ProgramPointsAfterwards, 71 TransitionsBefore, 21 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 15 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 641 VarBasedMoverChecksPositive, 24 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2585 CheckedPairsTotal, 57 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 137 SDtfs, 139 SDslu, 182 SDs, 0 SdLazy, 96 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 2985 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...