/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-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 07:10:08,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 07:10:08,299 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 07:10:08,314 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 07:10:08,315 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 07:10:08,318 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 07:10:08,320 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 07:10:08,333 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 07:10:08,335 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 07:10:08,336 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 07:10:08,339 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 07:10:08,340 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 07:10:08,340 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 07:10:08,343 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 07:10:08,346 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 07:10:08,348 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 07:10:08,350 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 07:10:08,352 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 07:10:08,353 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 07:10:08,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 07:10:08,363 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 07:10:08,364 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 07:10:08,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 07:10:08,366 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 07:10:08,369 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 07:10:08,369 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 07:10:08,369 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 07:10:08,372 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 07:10:08,373 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 07:10:08,375 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 07:10:08,375 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 07:10:08,376 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 07:10:08,377 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 07:10:08,378 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 07:10:08,380 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 07:10:08,381 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 07:10:08,382 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 07:10:08,382 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 07:10:08,382 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 07:10:08,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 07:10:08,387 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 07:10:08,387 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2020-04-18 07:10:08,411 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 07:10:08,412 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 07:10:08,413 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 07:10:08,414 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 07:10:08,414 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 07:10:08,414 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 07:10:08,414 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 07:10:08,415 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 07:10:08,415 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 07:10:08,415 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 07:10:08,416 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 07:10:08,416 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 07:10:08,417 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 07:10:08,417 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 07:10:08,417 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 07:10:08,417 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 07:10:08,418 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 07:10:08,418 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 07:10:08,418 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 07:10:08,418 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 07:10:08,418 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 07:10:08,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 07:10:08,419 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 07:10:08,419 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 07:10:08,419 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 07:10:08,419 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-18 07:10:08,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 07:10:08,420 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 07:10:08,420 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 07:10:08,420 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 07:10:08,704 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 07:10:08,717 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 07:10:08,722 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 07:10:08,724 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 07:10:08,724 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 07:10:08,725 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.oepc.i [2020-04-18 07:10:08,802 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8681a2fa7/84e367d8e6964480a704a364d7ff4199/FLAG6b82538fb [2020-04-18 07:10:09,359 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 07:10:09,360 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe034_tso.oepc.i [2020-04-18 07:10:09,379 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8681a2fa7/84e367d8e6964480a704a364d7ff4199/FLAG6b82538fb [2020-04-18 07:10:09,664 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8681a2fa7/84e367d8e6964480a704a364d7ff4199 [2020-04-18 07:10:09,673 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 07:10:09,694 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 07:10:09,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 07:10:09,696 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 07:10:09,699 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 07:10:09,700 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:10:09" (1/1) ... [2020-04-18 07:10:09,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55cd1e61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:10:09, skipping insertion in model container [2020-04-18 07:10:09,704 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:10:09" (1/1) ... [2020-04-18 07:10:09,713 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 07:10:09,778 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 07:10:10,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 07:10:10,290 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 07:10:10,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 07:10:10,426 INFO L208 MainTranslator]: Completed translation [2020-04-18 07:10:10,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:10:10 WrapperNode [2020-04-18 07:10:10,426 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 07:10:10,427 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 07:10:10,427 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 07:10:10,427 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 07:10:10,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:10:10" (1/1) ... [2020-04-18 07:10:10,454 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:10:10" (1/1) ... [2020-04-18 07:10:10,484 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 07:10:10,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 07:10:10,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 07:10:10,485 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 07:10:10,494 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:10:10" (1/1) ... [2020-04-18 07:10:10,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:10:10" (1/1) ... [2020-04-18 07:10:10,497 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:10:10" (1/1) ... [2020-04-18 07:10:10,497 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:10:10" (1/1) ... [2020-04-18 07:10:10,503 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:10:10" (1/1) ... [2020-04-18 07:10:10,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:10:10" (1/1) ... [2020-04-18 07:10:10,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:10:10" (1/1) ... [2020-04-18 07:10:10,511 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 07:10:10,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 07:10:10,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 07:10:10,512 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 07:10:10,513 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:10:10" (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 07:10:10,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 07:10:10,575 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 07:10:10,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 07:10:10,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 07:10:10,576 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 07:10:10,576 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 07:10:10,576 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 07:10:10,577 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 07:10:10,577 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 07:10:10,577 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 07:10:10,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 07:10:10,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 07:10:10,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 07:10:10,579 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 07:10:10,971 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 07:10:10,971 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 07:10:10,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:10:10 BoogieIcfgContainer [2020-04-18 07:10:10,976 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 07:10:10,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 07:10:10,978 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 07:10:10,981 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 07:10:10,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:10:09" (1/3) ... [2020-04-18 07:10:10,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@683f4dbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:10:10, skipping insertion in model container [2020-04-18 07:10:10,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:10:10" (2/3) ... [2020-04-18 07:10:10,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@683f4dbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:10:10, skipping insertion in model container [2020-04-18 07:10:10,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:10:10" (3/3) ... [2020-04-18 07:10:10,985 INFO L109 eAbstractionObserver]: Analyzing ICFG safe034_tso.oepc.i [2020-04-18 07:10:10,996 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 07:10:10,996 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 07:10:11,003 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 07:10:11,004 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 07:10:11,032 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:10:11,032 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:10:11,033 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:10:11,033 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:10:11,034 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:10:11,034 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:10:11,035 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:10:11,035 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:10:11,035 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:10:11,035 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:10:11,036 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:10:11,036 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:10:11,037 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:10:11,037 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:10:11,037 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:10:11,037 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:10:11,038 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:10:11,038 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:10:11,042 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:10:11,043 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:10:11,043 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:10:11,043 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:10:11,049 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:10:11,050 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:10:11,050 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:10:11,051 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:10:11,054 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:10:11,054 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:10:11,054 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:10:11,055 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:10:11,073 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 07:10:11,089 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 07:10:11,089 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 07:10:11,089 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 07:10:11,089 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 07:10:11,089 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 07:10:11,090 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 07:10:11,090 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 07:10:11,090 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 07:10:11,104 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 78 places, 70 transitions, 155 flow [2020-04-18 07:10:11,607 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 8472 states. [2020-04-18 07:10:11,610 INFO L276 IsEmpty]: Start isEmpty. Operand 8472 states. [2020-04-18 07:10:11,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-04-18 07:10:11,641 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:10:11,642 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:10:11,643 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:10:11,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:10:11,650 INFO L82 PathProgramCache]: Analyzing trace with hash 1548204118, now seen corresponding path program 1 times [2020-04-18 07:10:11,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:10:11,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906906382] [2020-04-18 07:10:11,660 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:10:11,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:10:12,156 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 07:10:12,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906906382] [2020-04-18 07:10:12,159 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:10:12,159 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 07:10:12,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741557153] [2020-04-18 07:10:12,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 07:10:12,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:10:12,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 07:10:12,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 07:10:12,187 INFO L87 Difference]: Start difference. First operand 8472 states. Second operand 6 states. [2020-04-18 07:10:12,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:10:12,765 INFO L93 Difference]: Finished difference Result 19138 states and 65952 transitions. [2020-04-18 07:10:12,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 07:10:12,767 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2020-04-18 07:10:12,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:10:12,849 INFO L225 Difference]: With dead ends: 19138 [2020-04-18 07:10:12,849 INFO L226 Difference]: Without dead ends: 6235 [2020-04-18 07:10:12,853 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-04-18 07:10:12,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6235 states. [2020-04-18 07:10:13,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6235 to 5203. [2020-04-18 07:10:13,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5203 states. [2020-04-18 07:10:13,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 17657 transitions. [2020-04-18 07:10:13,272 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 17657 transitions. Word has length 36 [2020-04-18 07:10:13,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:10:13,274 INFO L479 AbstractCegarLoop]: Abstraction has 5203 states and 17657 transitions. [2020-04-18 07:10:13,274 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 07:10:13,274 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 17657 transitions. [2020-04-18 07:10:13,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 07:10:13,285 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:10:13,285 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:10:13,286 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:10:13,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:10:13,286 INFO L82 PathProgramCache]: Analyzing trace with hash -1307461929, now seen corresponding path program 1 times [2020-04-18 07:10:13,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:10:13,287 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630924784] [2020-04-18 07:10:13,287 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:10:13,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:10:13,449 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 07:10:13,450 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630924784] [2020-04-18 07:10:13,450 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:10:13,450 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 07:10:13,451 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200049915] [2020-04-18 07:10:13,452 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 07:10:13,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:10:13,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 07:10:13,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 07:10:13,454 INFO L87 Difference]: Start difference. First operand 5203 states and 17657 transitions. Second operand 6 states. [2020-04-18 07:10:13,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:10:13,695 INFO L93 Difference]: Finished difference Result 6402 states and 21224 transitions. [2020-04-18 07:10:13,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 07:10:13,696 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-04-18 07:10:13,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:10:13,732 INFO L225 Difference]: With dead ends: 6402 [2020-04-18 07:10:13,732 INFO L226 Difference]: Without dead ends: 4598 [2020-04-18 07:10:13,735 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-04-18 07:10:13,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4598 states. [2020-04-18 07:10:13,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4598 to 4598. [2020-04-18 07:10:13,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4598 states. [2020-04-18 07:10:14,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4598 states to 4598 states and 15242 transitions. [2020-04-18 07:10:14,040 INFO L78 Accepts]: Start accepts. Automaton has 4598 states and 15242 transitions. Word has length 38 [2020-04-18 07:10:14,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:10:14,041 INFO L479 AbstractCegarLoop]: Abstraction has 4598 states and 15242 transitions. [2020-04-18 07:10:14,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 07:10:14,042 INFO L276 IsEmpty]: Start isEmpty. Operand 4598 states and 15242 transitions. [2020-04-18 07:10:14,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-04-18 07:10:14,054 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:10:14,055 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:10:14,055 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:10:14,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:10:14,056 INFO L82 PathProgramCache]: Analyzing trace with hash -476874408, now seen corresponding path program 1 times [2020-04-18 07:10:14,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:10:14,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616014035] [2020-04-18 07:10:14,056 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:10:14,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:10:14,271 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 07:10:14,271 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616014035] [2020-04-18 07:10:14,272 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:10:14,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 07:10:14,273 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037626555] [2020-04-18 07:10:14,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 07:10:14,273 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:10:14,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 07:10:14,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 07:10:14,275 INFO L87 Difference]: Start difference. First operand 4598 states and 15242 transitions. Second operand 7 states. [2020-04-18 07:10:14,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:10:14,463 INFO L93 Difference]: Finished difference Result 4409 states and 14042 transitions. [2020-04-18 07:10:14,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 07:10:14,464 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2020-04-18 07:10:14,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:10:14,483 INFO L225 Difference]: With dead ends: 4409 [2020-04-18 07:10:14,484 INFO L226 Difference]: Without dead ends: 2897 [2020-04-18 07:10:14,484 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-04-18 07:10:14,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2897 states. [2020-04-18 07:10:14,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2897 to 2873. [2020-04-18 07:10:14,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2873 states. [2020-04-18 07:10:14,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2873 states to 2873 states and 8957 transitions. [2020-04-18 07:10:14,568 INFO L78 Accepts]: Start accepts. Automaton has 2873 states and 8957 transitions. Word has length 40 [2020-04-18 07:10:14,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:10:14,569 INFO L479 AbstractCegarLoop]: Abstraction has 2873 states and 8957 transitions. [2020-04-18 07:10:14,569 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 07:10:14,569 INFO L276 IsEmpty]: Start isEmpty. Operand 2873 states and 8957 transitions. [2020-04-18 07:10:14,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-04-18 07:10:14,577 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:10:14,578 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:10:14,578 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:10:14,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:10:14,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1102967894, now seen corresponding path program 1 times [2020-04-18 07:10:14,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:10:14,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497999781] [2020-04-18 07:10:14,579 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:10:14,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:10:14,733 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 07:10:14,733 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497999781] [2020-04-18 07:10:14,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:10:14,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 07:10:14,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867443694] [2020-04-18 07:10:14,735 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 07:10:14,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:10:14,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 07:10:14,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-04-18 07:10:14,736 INFO L87 Difference]: Start difference. First operand 2873 states and 8957 transitions. Second operand 8 states. [2020-04-18 07:10:14,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:10:14,932 INFO L93 Difference]: Finished difference Result 2171 states and 6563 transitions. [2020-04-18 07:10:14,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 07:10:14,932 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 44 [2020-04-18 07:10:14,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:10:14,940 INFO L225 Difference]: With dead ends: 2171 [2020-04-18 07:10:14,940 INFO L226 Difference]: Without dead ends: 1255 [2020-04-18 07:10:14,941 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-04-18 07:10:14,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2020-04-18 07:10:14,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1063. [2020-04-18 07:10:14,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1063 states. [2020-04-18 07:10:14,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 3070 transitions. [2020-04-18 07:10:14,978 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 3070 transitions. Word has length 44 [2020-04-18 07:10:14,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:10:14,981 INFO L479 AbstractCegarLoop]: Abstraction has 1063 states and 3070 transitions. [2020-04-18 07:10:14,981 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 07:10:14,981 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 3070 transitions. [2020-04-18 07:10:14,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-04-18 07:10:14,985 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:10:14,985 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:10:14,985 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:10:14,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:10:14,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1419398676, now seen corresponding path program 1 times [2020-04-18 07:10:14,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:10:14,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569961859] [2020-04-18 07:10:14,986 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:10:15,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:10:15,177 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 07:10:15,177 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569961859] [2020-04-18 07:10:15,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:10:15,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 07:10:15,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701218276] [2020-04-18 07:10:15,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 07:10:15,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:10:15,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 07:10:15,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 07:10:15,180 INFO L87 Difference]: Start difference. First operand 1063 states and 3070 transitions. Second operand 7 states. [2020-04-18 07:10:15,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:10:15,561 INFO L93 Difference]: Finished difference Result 1586 states and 4613 transitions. [2020-04-18 07:10:15,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-18 07:10:15,562 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2020-04-18 07:10:15,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:10:15,565 INFO L225 Difference]: With dead ends: 1586 [2020-04-18 07:10:15,566 INFO L226 Difference]: Without dead ends: 853 [2020-04-18 07:10:15,566 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-04-18 07:10:15,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2020-04-18 07:10:15,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 853. [2020-04-18 07:10:15,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 853 states. [2020-04-18 07:10:15,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 2453 transitions. [2020-04-18 07:10:15,590 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 2453 transitions. Word has length 48 [2020-04-18 07:10:15,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:10:15,590 INFO L479 AbstractCegarLoop]: Abstraction has 853 states and 2453 transitions. [2020-04-18 07:10:15,590 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 07:10:15,591 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 2453 transitions. [2020-04-18 07:10:15,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-04-18 07:10:15,593 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:10:15,593 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:10:15,594 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:10:15,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:10:15,594 INFO L82 PathProgramCache]: Analyzing trace with hash 647958696, now seen corresponding path program 2 times [2020-04-18 07:10:15,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:10:15,595 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253035210] [2020-04-18 07:10:15,595 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:10:15,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:10:15,718 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 07:10:15,719 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253035210] [2020-04-18 07:10:15,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:10:15,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 07:10:15,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797591773] [2020-04-18 07:10:15,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 07:10:15,720 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:10:15,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 07:10:15,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-04-18 07:10:15,721 INFO L87 Difference]: Start difference. First operand 853 states and 2453 transitions. Second operand 7 states. [2020-04-18 07:10:15,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:10:15,838 INFO L93 Difference]: Finished difference Result 1256 states and 3630 transitions. [2020-04-18 07:10:15,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-18 07:10:15,838 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2020-04-18 07:10:15,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:10:15,841 INFO L225 Difference]: With dead ends: 1256 [2020-04-18 07:10:15,841 INFO L226 Difference]: Without dead ends: 633 [2020-04-18 07:10:15,842 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-04-18 07:10:15,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2020-04-18 07:10:15,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 633. [2020-04-18 07:10:15,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 633 states. [2020-04-18 07:10:15,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 1783 transitions. [2020-04-18 07:10:15,858 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 1783 transitions. Word has length 48 [2020-04-18 07:10:15,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:10:15,859 INFO L479 AbstractCegarLoop]: Abstraction has 633 states and 1783 transitions. [2020-04-18 07:10:15,859 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 07:10:15,859 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 1783 transitions. [2020-04-18 07:10:15,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-04-18 07:10:15,861 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:10:15,861 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:10:15,862 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:10:15,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:10:15,862 INFO L82 PathProgramCache]: Analyzing trace with hash -965521732, now seen corresponding path program 3 times [2020-04-18 07:10:15,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:10:15,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314486284] [2020-04-18 07:10:15,863 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:10:15,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:10:15,961 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 07:10:15,962 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314486284] [2020-04-18 07:10:15,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:10:15,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 07:10:15,963 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371963212] [2020-04-18 07:10:15,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 07:10:15,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:10:15,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 07:10:15,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-04-18 07:10:15,964 INFO L87 Difference]: Start difference. First operand 633 states and 1783 transitions. Second operand 7 states. [2020-04-18 07:10:16,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:10:16,039 INFO L93 Difference]: Finished difference Result 579 states and 1621 transitions. [2020-04-18 07:10:16,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-18 07:10:16,039 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2020-04-18 07:10:16,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:10:16,039 INFO L225 Difference]: With dead ends: 579 [2020-04-18 07:10:16,040 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 07:10:16,040 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-04-18 07:10:16,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 07:10:16,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 07:10:16,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 07:10:16,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 07:10:16,041 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2020-04-18 07:10:16,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:10:16,041 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 07:10:16,042 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 07:10:16,042 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 07:10:16,042 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 07:10:16,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 07:10:16 BasicIcfg [2020-04-18 07:10:16,047 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 07:10:16,050 INFO L168 Benchmark]: Toolchain (without parser) took 6374.53 ms. Allocated memory was 139.5 MB in the beginning and 389.5 MB in the end (delta: 250.1 MB). Free memory was 102.8 MB in the beginning and 259.5 MB in the end (delta: -156.7 MB). Peak memory consumption was 93.4 MB. Max. memory is 7.1 GB. [2020-04-18 07:10:16,051 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 139.5 MB. Free memory is still 122.2 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-04-18 07:10:16,052 INFO L168 Benchmark]: CACSL2BoogieTranslator took 731.42 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 100.8 MB in the beginning and 159.8 MB in the end (delta: -58.9 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. [2020-04-18 07:10:16,052 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.95 ms. Allocated memory is still 203.4 MB. Free memory was 159.8 MB in the beginning and 157.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-04-18 07:10:16,053 INFO L168 Benchmark]: Boogie Preprocessor took 26.56 ms. Allocated memory is still 203.4 MB. Free memory was 157.8 MB in the beginning and 155.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-04-18 07:10:16,054 INFO L168 Benchmark]: RCFGBuilder took 465.13 ms. Allocated memory is still 203.4 MB. Free memory was 155.9 MB in the beginning and 134.8 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. [2020-04-18 07:10:16,055 INFO L168 Benchmark]: TraceAbstraction took 5069.70 ms. Allocated memory was 203.4 MB in the beginning and 389.5 MB in the end (delta: 186.1 MB). Free memory was 133.8 MB in the beginning and 259.5 MB in the end (delta: -125.6 MB). Peak memory consumption was 60.5 MB. Max. memory is 7.1 GB. [2020-04-18 07:10:16,059 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 139.5 MB. Free memory is still 122.2 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 731.42 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 100.8 MB in the beginning and 159.8 MB in the end (delta: -58.9 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 56.95 ms. Allocated memory is still 203.4 MB. Free memory was 159.8 MB in the beginning and 157.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.56 ms. Allocated memory is still 203.4 MB. Free memory was 157.8 MB in the beginning and 155.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 465.13 ms. Allocated memory is still 203.4 MB. Free memory was 155.9 MB in the beginning and 134.8 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5069.70 ms. Allocated memory was 203.4 MB in the beginning and 389.5 MB in the end (delta: 186.1 MB). Free memory was 133.8 MB in the beginning and 259.5 MB in the end (delta: -125.6 MB). Peak memory consumption was 60.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.9s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.5s, HoareTripleCheckerStatistics: 628 SDtfs, 949 SDslu, 2040 SDs, 0 SdLazy, 262 SolverSat, 58 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 83 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8472occurred 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: 0.8s AutomataMinimizationTime, 7 MinimizatonAttempts, 1248 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 302 NumberOfCodeBlocks, 302 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 295 ConstructedInterpolants, 0 QuantifiedInterpolants, 43151 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...