/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-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-17 22:21:04,191 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-17 22:21:04,194 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-17 22:21:04,213 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-17 22:21:04,213 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-17 22:21:04,216 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-17 22:21:04,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-17 22:21:04,231 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-17 22:21:04,233 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-17 22:21:04,234 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-17 22:21:04,236 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-17 22:21:04,238 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-17 22:21:04,239 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-17 22:21:04,242 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-17 22:21:04,244 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-17 22:21:04,246 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-17 22:21:04,248 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-17 22:21:04,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-17 22:21:04,252 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-17 22:21:04,254 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-17 22:21:04,256 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-17 22:21:04,257 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-17 22:21:04,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-17 22:21:04,258 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-17 22:21:04,260 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-17 22:21:04,261 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-17 22:21:04,261 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-17 22:21:04,262 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-17 22:21:04,262 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-17 22:21:04,263 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-17 22:21:04,263 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-17 22:21:04,264 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-17 22:21:04,265 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-17 22:21:04,265 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-17 22:21:04,266 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-17 22:21:04,267 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-17 22:21:04,267 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-17 22:21:04,267 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-17 22:21:04,268 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-17 22:21:04,269 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-17 22:21:04,269 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-17 22:21:04,270 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-SemanticLbe.epf [2020-04-17 22:21:04,289 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-17 22:21:04,289 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-17 22:21:04,290 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-17 22:21:04,290 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-17 22:21:04,291 INFO L138 SettingsManager]: * Use SBE=true [2020-04-17 22:21:04,291 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-17 22:21:04,291 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-17 22:21:04,291 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-17 22:21:04,291 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-17 22:21:04,292 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-17 22:21:04,292 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-17 22:21:04,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-17 22:21:04,293 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-17 22:21:04,293 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-17 22:21:04,293 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-17 22:21:04,293 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-17 22:21:04,293 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-17 22:21:04,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-17 22:21:04,294 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-17 22:21:04,294 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-17 22:21:04,294 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-17 22:21:04,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 22:21:04,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-17 22:21:04,295 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-17 22:21:04,295 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-17 22:21:04,296 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-17 22:21:04,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-17 22:21:04,296 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-17 22:21:04,297 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-17 22:21:04,575 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-17 22:21:04,595 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-17 22:21:04,598 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-17 22:21:04,600 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-17 22:21:04,600 INFO L275 PluginConnector]: CDTParser initialized [2020-04-17 22:21:04,601 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.oepc.i [2020-04-17 22:21:04,673 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5e8a6ed2/6cc826431e494f0396cff4174dd26100/FLAGbf1bc50f1 [2020-04-17 22:21:05,272 INFO L306 CDTParser]: Found 1 translation units. [2020-04-17 22:21:05,273 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe024_tso.oepc.i [2020-04-17 22:21:05,299 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5e8a6ed2/6cc826431e494f0396cff4174dd26100/FLAGbf1bc50f1 [2020-04-17 22:21:05,601 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5e8a6ed2/6cc826431e494f0396cff4174dd26100 [2020-04-17 22:21:05,612 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-17 22:21:05,635 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-17 22:21:05,636 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-17 22:21:05,636 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-17 22:21:05,640 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-17 22:21:05,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 10:21:05" (1/1) ... [2020-04-17 22:21:05,646 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67d9580c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:21:05, skipping insertion in model container [2020-04-17 22:21:05,646 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 10:21:05" (1/1) ... [2020-04-17 22:21:05,655 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-17 22:21:05,720 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-17 22:21:06,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 22:21:06,257 INFO L203 MainTranslator]: Completed pre-run [2020-04-17 22:21:06,340 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 22:21:06,416 INFO L208 MainTranslator]: Completed translation [2020-04-17 22:21:06,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:21:06 WrapperNode [2020-04-17 22:21:06,417 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-17 22:21:06,418 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-17 22:21:06,418 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-17 22:21:06,418 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-17 22:21:06,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:21:06" (1/1) ... [2020-04-17 22:21:06,450 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:21:06" (1/1) ... [2020-04-17 22:21:06,475 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-17 22:21:06,475 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-17 22:21:06,475 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-17 22:21:06,476 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-17 22:21:06,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:21:06" (1/1) ... [2020-04-17 22:21:06,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:21:06" (1/1) ... [2020-04-17 22:21:06,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:21:06" (1/1) ... [2020-04-17 22:21:06,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:21:06" (1/1) ... [2020-04-17 22:21:06,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:21:06" (1/1) ... [2020-04-17 22:21:06,497 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:21:06" (1/1) ... [2020-04-17 22:21:06,500 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:21:06" (1/1) ... [2020-04-17 22:21:06,511 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-17 22:21:06,512 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-17 22:21:06,512 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-17 22:21:06,512 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-17 22:21:06,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:21:06" (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 [2020-04-17 22:21:06,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-17 22:21:06,587 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-17 22:21:06,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-17 22:21:06,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-17 22:21:06,588 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-17 22:21:06,588 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-17 22:21:06,588 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-17 22:21:06,588 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-17 22:21:06,588 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-17 22:21:06,589 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-17 22:21:06,589 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-17 22:21:06,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-17 22:21:06,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-17 22:21:06,591 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-17 22:21:07,041 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-17 22:21:07,042 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-17 22:21:07,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 10:21:07 BoogieIcfgContainer [2020-04-17 22:21:07,046 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-17 22:21:07,048 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-17 22:21:07,048 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-17 22:21:07,052 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-17 22:21:07,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 10:21:05" (1/3) ... [2020-04-17 22:21:07,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21604678 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 10:21:07, skipping insertion in model container [2020-04-17 22:21:07,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:21:06" (2/3) ... [2020-04-17 22:21:07,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21604678 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 10:21:07, skipping insertion in model container [2020-04-17 22:21:07,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 10:21:07" (3/3) ... [2020-04-17 22:21:07,056 INFO L109 eAbstractionObserver]: Analyzing ICFG safe024_tso.oepc.i [2020-04-17 22:21:07,066 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-17 22:21:07,066 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-17 22:21:07,074 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-17 22:21:07,075 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-17 22:21:07,100 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:21:07,100 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:21:07,101 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:21:07,101 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:21:07,101 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:21:07,102 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:21:07,102 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:21:07,103 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:21:07,103 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:21:07,103 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:21:07,104 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:21:07,104 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:21:07,104 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:21:07,105 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:21:07,105 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:21:07,105 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:21:07,106 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:21:07,106 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:21:07,110 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:21:07,111 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:21:07,111 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:21:07,111 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:21:07,119 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:21:07,119 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:21:07,120 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:21:07,120 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:21:07,128 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:21:07,128 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:21:07,128 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:21:07,129 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:21:07,145 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-17 22:21:07,162 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 22:21:07,162 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 22:21:07,162 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 22:21:07,162 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 22:21:07,163 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 22:21:07,163 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 22:21:07,163 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 22:21:07,163 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 22:21:07,178 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-04-17 22:21:07,180 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-04-17 22:21:07,236 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-04-17 22:21:07,237 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 22:21:07,243 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. [2020-04-17 22:21:07,248 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-04-17 22:21:07,277 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-04-17 22:21:07,278 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 22:21:07,279 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. [2020-04-17 22:21:07,283 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-04-17 22:21:07,284 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-17 22:21:09,261 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2585 [2020-04-17 22:21:09,261 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-04-17 22:21:09,265 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-04-17 22:21:09,291 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-04-17 22:21:09,293 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-04-17 22:21:09,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-17 22:21:09,302 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:21:09,303 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:21:09,303 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:21:09,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:21:09,311 INFO L82 PathProgramCache]: Analyzing trace with hash -595431234, now seen corresponding path program 1 times [2020-04-17 22:21:09,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:21:09,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904165199] [2020-04-17 22:21:09,323 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:21:09,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:21:09,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:21:09,564 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904165199] [2020-04-17 22:21:09,566 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:21:09,566 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-17 22:21:09,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252824425] [2020-04-17 22:21:09,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 22:21:09,573 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:21:09,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 22:21:09,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 22:21:09,591 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-04-17 22:21:09,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:21:09,672 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-04-17 22:21:09,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 22:21:09,674 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-04-17 22:21:09,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:21:09,702 INFO L225 Difference]: With dead ends: 282 [2020-04-17 22:21:09,702 INFO L226 Difference]: Without dead ends: 218 [2020-04-17 22:21:09,704 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 [2020-04-17 22:21:09,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-04-17 22:21:09,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-04-17 22:21:09,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-04-17 22:21:09,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-04-17 22:21:09,812 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-04-17 22:21:09,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:21:09,814 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-04-17 22:21:09,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 22:21:09,814 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-04-17 22:21:09,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-17 22:21:09,817 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:21:09,817 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:21:09,817 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:21:09,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:21:09,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1278499900, now seen corresponding path program 1 times [2020-04-17 22:21:09,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:21:09,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794407589] [2020-04-17 22:21:09,818 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:21:09,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:21:09,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:21:09,932 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794407589] [2020-04-17 22:21:09,932 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:21:09,932 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 22:21:09,932 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466399833] [2020-04-17 22:21:09,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 22:21:09,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:21:09,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 22:21:09,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:21:09,936 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-04-17 22:21:09,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:21:09,979 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-04-17 22:21:09,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 22:21:09,980 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-04-17 22:21:09,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:21:09,982 INFO L225 Difference]: With dead ends: 242 [2020-04-17 22:21:09,983 INFO L226 Difference]: Without dead ends: 146 [2020-04-17 22:21:09,984 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 [2020-04-17 22:21:09,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-04-17 22:21:09,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-04-17 22:21:09,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-04-17 22:21:09,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-04-17 22:21:09,995 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 9 [2020-04-17 22:21:09,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:21:09,996 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-04-17 22:21:09,996 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 22:21:09,996 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-04-17 22:21:09,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-17 22:21:09,997 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:21:09,997 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:21:09,997 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:21:09,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:21:09,998 INFO L82 PathProgramCache]: Analyzing trace with hash -453706064, now seen corresponding path program 1 times [2020-04-17 22:21:09,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:21:09,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786485408] [2020-04-17 22:21:09,999 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:21:10,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:21:10,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:21:10,102 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786485408] [2020-04-17 22:21:10,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:21:10,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 22:21:10,103 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183290139] [2020-04-17 22:21:10,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 22:21:10,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:21:10,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 22:21:10,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:21:10,105 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 4 states. [2020-04-17 22:21:10,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:21:10,150 INFO L93 Difference]: Finished difference Result 165 states and 377 transitions. [2020-04-17 22:21:10,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 22:21:10,150 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-04-17 22:21:10,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:21:10,152 INFO L225 Difference]: With dead ends: 165 [2020-04-17 22:21:10,152 INFO L226 Difference]: Without dead ends: 125 [2020-04-17 22:21:10,153 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 [2020-04-17 22:21:10,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-04-17 22:21:10,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-04-17 22:21:10,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-04-17 22:21:10,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 284 transitions. [2020-04-17 22:21:10,161 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 284 transitions. Word has length 11 [2020-04-17 22:21:10,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:21:10,162 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 284 transitions. [2020-04-17 22:21:10,162 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 22:21:10,162 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 284 transitions. [2020-04-17 22:21:10,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-17 22:21:10,163 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:21:10,163 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:21:10,163 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:21:10,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:21:10,164 INFO L82 PathProgramCache]: Analyzing trace with hash -1227187402, now seen corresponding path program 1 times [2020-04-17 22:21:10,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:21:10,165 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405097936] [2020-04-17 22:21:10,165 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:21:10,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:21:10,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:21:10,276 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405097936] [2020-04-17 22:21:10,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:21:10,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 22:21:10,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075960308] [2020-04-17 22:21:10,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 22:21:10,277 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:21:10,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 22:21:10,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:21:10,278 INFO L87 Difference]: Start difference. First operand 125 states and 284 transitions. Second operand 5 states. [2020-04-17 22:21:10,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:21:10,335 INFO L93 Difference]: Finished difference Result 122 states and 258 transitions. [2020-04-17 22:21:10,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-17 22:21:10,336 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-04-17 22:21:10,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:21:10,337 INFO L225 Difference]: With dead ends: 122 [2020-04-17 22:21:10,337 INFO L226 Difference]: Without dead ends: 97 [2020-04-17 22:21:10,337 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 [2020-04-17 22:21:10,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-04-17 22:21:10,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-04-17 22:21:10,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-04-17 22:21:10,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 202 transitions. [2020-04-17 22:21:10,344 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 202 transitions. Word has length 12 [2020-04-17 22:21:10,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:21:10,345 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 202 transitions. [2020-04-17 22:21:10,345 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 22:21:10,345 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 202 transitions. [2020-04-17 22:21:10,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-17 22:21:10,346 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:21:10,346 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:21:10,346 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:21:10,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:21:10,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1770525280, now seen corresponding path program 1 times [2020-04-17 22:21:10,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:21:10,347 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859780715] [2020-04-17 22:21:10,347 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:21:10,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:21:10,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:21:10,420 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859780715] [2020-04-17 22:21:10,421 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:21:10,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-17 22:21:10,421 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912042630] [2020-04-17 22:21:10,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-17 22:21:10,422 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:21:10,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-17 22:21:10,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-17 22:21:10,422 INFO L87 Difference]: Start difference. First operand 97 states and 202 transitions. Second operand 6 states. [2020-04-17 22:21:10,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:21:10,480 INFO L93 Difference]: Finished difference Result 92 states and 190 transitions. [2020-04-17 22:21:10,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-17 22:21:10,481 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-04-17 22:21:10,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:21:10,482 INFO L225 Difference]: With dead ends: 92 [2020-04-17 22:21:10,482 INFO L226 Difference]: Without dead ends: 84 [2020-04-17 22:21:10,482 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 [2020-04-17 22:21:10,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-04-17 22:21:10,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-04-17 22:21:10,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-04-17 22:21:10,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 176 transitions. [2020-04-17 22:21:10,487 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 176 transitions. Word has length 14 [2020-04-17 22:21:10,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:21:10,487 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 176 transitions. [2020-04-17 22:21:10,487 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-17 22:21:10,488 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 176 transitions. [2020-04-17 22:21:10,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-17 22:21:10,488 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:21:10,489 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:21:10,489 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:21:10,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:21:10,489 INFO L82 PathProgramCache]: Analyzing trace with hash -793372783, now seen corresponding path program 1 times [2020-04-17 22:21:10,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:21:10,490 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146409643] [2020-04-17 22:21:10,490 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:21:10,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:21:10,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:21:10,558 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146409643] [2020-04-17 22:21:10,558 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:21:10,558 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 22:21:10,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006782978] [2020-04-17 22:21:10,559 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 22:21:10,559 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:21:10,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 22:21:10,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:21:10,560 INFO L87 Difference]: Start difference. First operand 84 states and 176 transitions. Second operand 4 states. [2020-04-17 22:21:10,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:21:10,573 INFO L93 Difference]: Finished difference Result 115 states and 234 transitions. [2020-04-17 22:21:10,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 22:21:10,574 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-04-17 22:21:10,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:21:10,574 INFO L225 Difference]: With dead ends: 115 [2020-04-17 22:21:10,575 INFO L226 Difference]: Without dead ends: 54 [2020-04-17 22:21:10,575 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 [2020-04-17 22:21:10,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-04-17 22:21:10,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-04-17 22:21:10,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-04-17 22:21:10,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2020-04-17 22:21:10,578 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 17 [2020-04-17 22:21:10,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:21:10,578 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2020-04-17 22:21:10,578 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 22:21:10,579 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2020-04-17 22:21:10,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-17 22:21:10,579 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:21:10,579 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:21:10,580 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:21:10,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:21:10,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1598285289, now seen corresponding path program 2 times [2020-04-17 22:21:10,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:21:10,581 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760126453] [2020-04-17 22:21:10,581 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:21:10,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:21:10,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:21:10,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760126453] [2020-04-17 22:21:10,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:21:10,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 22:21:10,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124230767] [2020-04-17 22:21:10,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 22:21:10,619 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:21:10,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 22:21:10,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:21:10,620 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand 4 states. [2020-04-17 22:21:10,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:21:10,631 INFO L93 Difference]: Finished difference Result 53 states and 97 transitions. [2020-04-17 22:21:10,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 22:21:10,631 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-04-17 22:21:10,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:21:10,631 INFO L225 Difference]: With dead ends: 53 [2020-04-17 22:21:10,632 INFO L226 Difference]: Without dead ends: 0 [2020-04-17 22:21:10,632 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 [2020-04-17 22:21:10,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-17 22:21:10,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-17 22:21:10,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-17 22:21:10,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-17 22:21:10,633 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-04-17 22:21:10,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:21:10,633 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-17 22:21:10,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 22:21:10,633 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-17 22:21:10,634 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-17 22:21:10,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.04 10:21:10 BasicIcfg [2020-04-17 22:21:10,638 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-17 22:21:10,640 INFO L168 Benchmark]: Toolchain (without parser) took 5026.47 ms. Allocated memory was 138.4 MB in the beginning and 248.5 MB in the end (delta: 110.1 MB). Free memory was 100.4 MB in the beginning and 163.5 MB in the end (delta: -63.1 MB). Peak memory consumption was 47.0 MB. Max. memory is 7.1 GB. [2020-04-17 22:21:10,641 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 138.4 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-04-17 22:21:10,642 INFO L168 Benchmark]: CACSL2BoogieTranslator took 780.98 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 98.4 MB in the beginning and 158.2 MB in the end (delta: -59.8 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2020-04-17 22:21:10,643 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.42 ms. Allocated memory is still 202.4 MB. Free memory was 158.2 MB in the beginning and 156.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-17 22:21:10,644 INFO L168 Benchmark]: Boogie Preprocessor took 35.99 ms. Allocated memory is still 202.4 MB. Free memory was 156.2 MB in the beginning and 154.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-17 22:21:10,645 INFO L168 Benchmark]: RCFGBuilder took 534.74 ms. Allocated memory is still 202.4 MB. Free memory was 154.2 MB in the beginning and 132.3 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2020-04-17 22:21:10,646 INFO L168 Benchmark]: TraceAbstraction took 3590.12 ms. Allocated memory was 202.4 MB in the beginning and 248.5 MB in the end (delta: 46.1 MB). Free memory was 131.7 MB in the beginning and 163.5 MB in the end (delta: -31.8 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2020-04-17 22:21:10,650 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 138.4 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 780.98 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 98.4 MB in the beginning and 158.2 MB in the end (delta: -59.8 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 57.42 ms. Allocated memory is still 202.4 MB. Free memory was 158.2 MB in the beginning and 156.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 35.99 ms. Allocated memory is still 202.4 MB. Free memory was 156.2 MB in the beginning and 154.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 534.74 ms. Allocated memory is still 202.4 MB. Free memory was 154.2 MB in the beginning and 132.3 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3590.12 ms. Allocated memory was 202.4 MB in the beginning and 248.5 MB in the end (delta: 46.1 MB). Free memory was 131.7 MB in the beginning and 163.5 MB in the end (delta: -31.8 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.0s, 79 ProgramPointsBefore, 31 ProgramPointsAfterwards, 71 TransitionsBefore, 21 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 15 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 666 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 34 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 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: 3.4s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, 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, 0.2s 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, 2865 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...