/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-17 17:33:33,216 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-17 17:33:33,218 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-17 17:33:33,236 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-17 17:33:33,236 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-17 17:33:33,237 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-17 17:33:33,238 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-17 17:33:33,240 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-17 17:33:33,242 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-17 17:33:33,242 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-17 17:33:33,243 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-17 17:33:33,244 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-17 17:33:33,245 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-17 17:33:33,245 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-17 17:33:33,246 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-17 17:33:33,247 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-17 17:33:33,249 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-17 17:33:33,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-17 17:33:33,254 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-17 17:33:33,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-17 17:33:33,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-17 17:33:33,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-17 17:33:33,264 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-17 17:33:33,265 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-17 17:33:33,267 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-17 17:33:33,267 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-17 17:33:33,268 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-17 17:33:33,270 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-17 17:33:33,271 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-17 17:33:33,272 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-17 17:33:33,272 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-17 17:33:33,273 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-17 17:33:33,275 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-17 17:33:33,276 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-17 17:33:33,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-17 17:33:33,280 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-17 17:33:33,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-17 17:33:33,281 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-17 17:33:33,281 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-17 17:33:33,284 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-17 17:33:33,286 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-17 17:33:33,287 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-04-17 17:33:33,304 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-17 17:33:33,304 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-17 17:33:33,305 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-17 17:33:33,306 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-17 17:33:33,306 INFO L138 SettingsManager]: * Use SBE=true [2020-04-17 17:33:33,308 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-17 17:33:33,308 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-17 17:33:33,308 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-17 17:33:33,308 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-17 17:33:33,308 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-17 17:33:33,309 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-17 17:33:33,309 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-17 17:33:33,310 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-17 17:33:33,310 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-17 17:33:33,310 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-17 17:33:33,310 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-17 17:33:33,310 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-17 17:33:33,311 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-17 17:33:33,311 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-17 17:33:33,311 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-17 17:33:33,311 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-17 17:33:33,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 17:33:33,312 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-17 17:33:33,312 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-17 17:33:33,312 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-17 17:33:33,313 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-17 17:33:33,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-17 17:33:33,313 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-17 17:33:33,313 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-04-17 17:33:33,313 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-17 17:33:33,572 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-17 17:33:33,584 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-17 17:33:33,589 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-17 17:33:33,590 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-17 17:33:33,591 INFO L275 PluginConnector]: CDTParser initialized [2020-04-17 17:33:33,592 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2020-04-17 17:33:33,674 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2acc70023/271fdd6de7634fa987cb04c3fafa7c43/FLAGe6b6e565f [2020-04-17 17:33:34,198 INFO L306 CDTParser]: Found 1 translation units. [2020-04-17 17:33:34,199 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2020-04-17 17:33:34,226 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2acc70023/271fdd6de7634fa987cb04c3fafa7c43/FLAGe6b6e565f [2020-04-17 17:33:34,494 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2acc70023/271fdd6de7634fa987cb04c3fafa7c43 [2020-04-17 17:33:34,505 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-17 17:33:34,526 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-17 17:33:34,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-17 17:33:34,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-17 17:33:34,531 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-17 17:33:34,532 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 05:33:34" (1/1) ... [2020-04-17 17:33:34,535 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b6abf99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:33:34, skipping insertion in model container [2020-04-17 17:33:34,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 05:33:34" (1/1) ... [2020-04-17 17:33:34,544 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-17 17:33:34,599 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-17 17:33:35,149 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 17:33:35,167 INFO L203 MainTranslator]: Completed pre-run [2020-04-17 17:33:35,227 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 17:33:35,317 INFO L208 MainTranslator]: Completed translation [2020-04-17 17:33:35,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:33:35 WrapperNode [2020-04-17 17:33:35,318 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-17 17:33:35,319 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-17 17:33:35,319 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-17 17:33:35,319 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-17 17:33:35,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:33:35" (1/1) ... [2020-04-17 17:33:35,354 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:33:35" (1/1) ... [2020-04-17 17:33:35,382 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-17 17:33:35,382 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-17 17:33:35,382 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-17 17:33:35,383 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-17 17:33:35,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:33:35" (1/1) ... [2020-04-17 17:33:35,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:33:35" (1/1) ... [2020-04-17 17:33:35,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:33:35" (1/1) ... [2020-04-17 17:33:35,394 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:33:35" (1/1) ... [2020-04-17 17:33:35,404 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:33:35" (1/1) ... [2020-04-17 17:33:35,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:33:35" (1/1) ... [2020-04-17 17:33:35,412 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:33:35" (1/1) ... [2020-04-17 17:33:35,415 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-17 17:33:35,416 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-17 17:33:35,416 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-17 17:33:35,416 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-17 17:33:35,417 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:33:35" (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 17:33:35,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-17 17:33:35,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-17 17:33:35,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-17 17:33:35,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-17 17:33:35,480 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-17 17:33:35,480 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-17 17:33:35,480 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-17 17:33:35,480 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-17 17:33:35,480 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-17 17:33:35,481 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-17 17:33:35,481 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-17 17:33:35,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-17 17:33:35,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-17 17:33:35,483 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 17:33:35,875 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-17 17:33:35,876 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-17 17:33:35,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 05:33:35 BoogieIcfgContainer [2020-04-17 17:33:35,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-17 17:33:35,881 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-17 17:33:35,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-17 17:33:35,885 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-17 17:33:35,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 05:33:34" (1/3) ... [2020-04-17 17:33:35,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52e719c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 05:33:35, skipping insertion in model container [2020-04-17 17:33:35,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:33:35" (2/3) ... [2020-04-17 17:33:35,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52e719c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 05:33:35, skipping insertion in model container [2020-04-17 17:33:35,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 05:33:35" (3/3) ... [2020-04-17 17:33:35,889 INFO L109 eAbstractionObserver]: Analyzing ICFG safe003_tso.oepc.i [2020-04-17 17:33:35,899 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-17 17:33:35,900 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-17 17:33:35,907 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-17 17:33:35,908 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-17 17:33:35,935 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:33:35,936 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:33:35,936 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:33:35,936 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:33:35,937 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:33:35,937 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:33:35,938 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:33:35,938 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:33:35,938 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:33:35,939 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:33:35,939 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:33:35,939 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:33:35,940 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:33:35,940 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:33:35,940 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:33:35,941 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:33:35,941 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:33:35,941 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:33:35,946 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:33:35,946 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:33:35,946 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:33:35,947 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:33:35,953 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:33:35,954 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:33:35,954 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:33:35,954 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:33:35,959 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:33:35,959 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:33:35,959 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:33:35,959 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:33:35,977 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-17 17:33:35,997 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 17:33:35,998 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 17:33:35,998 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 17:33:35,998 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 17:33:35,998 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 17:33:35,998 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 17:33:35,998 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 17:33:35,999 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 17:33:36,014 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-04-17 17:33:36,017 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-04-17 17:33:36,070 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-04-17 17:33:36,071 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 17:33:36,079 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-17 17:33:36,082 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-04-17 17:33:36,106 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-04-17 17:33:36,106 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 17:33:36,107 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-17 17:33:36,109 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-04-17 17:33:36,110 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-17 17:33:37,787 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-04-17 17:33:38,009 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2700 [2020-04-17 17:33:38,009 INFO L214 etLargeBlockEncoding]: Total number of compositions: 59 [2020-04-17 17:33:38,014 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-04-17 17:33:38,045 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-04-17 17:33:38,047 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-04-17 17:33:38,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-17 17:33:38,058 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 17:33:38,060 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 17:33:38,060 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 17:33:38,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 17:33:38,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1011733384, now seen corresponding path program 1 times [2020-04-17 17:33:38,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 17:33:38,084 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458238243] [2020-04-17 17:33:38,085 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 17:33:38,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 17:33:38,402 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 17:33:38,403 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458238243] [2020-04-17 17:33:38,405 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 17:33:38,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-17 17:33:38,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517011920] [2020-04-17 17:33:38,415 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 17:33:38,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 17:33:38,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 17:33:38,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 17:33:38,439 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-04-17 17:33:38,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 17:33:38,527 INFO L93 Difference]: Finished difference Result 290 states and 834 transitions. [2020-04-17 17:33:38,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 17:33:38,531 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-04-17 17:33:38,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 17:33:38,562 INFO L225 Difference]: With dead ends: 290 [2020-04-17 17:33:38,562 INFO L226 Difference]: Without dead ends: 226 [2020-04-17 17:33:38,564 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 17:33:38,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-04-17 17:33:38,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-04-17 17:33:38,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-04-17 17:33:38,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions. [2020-04-17 17:33:38,636 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8 [2020-04-17 17:33:38,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 17:33:38,637 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 626 transitions. [2020-04-17 17:33:38,637 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 17:33:38,638 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2020-04-17 17:33:38,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-17 17:33:38,639 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 17:33:38,639 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 17:33:38,639 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 17:33:38,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 17:33:38,640 INFO L82 PathProgramCache]: Analyzing trace with hash -1035713695, now seen corresponding path program 1 times [2020-04-17 17:33:38,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 17:33:38,640 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943224871] [2020-04-17 17:33:38,641 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 17:33:38,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 17:33:38,719 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 17:33:38,720 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943224871] [2020-04-17 17:33:38,720 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 17:33:38,720 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-17 17:33:38,721 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23177927] [2020-04-17 17:33:38,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 17:33:38,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 17:33:38,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 17:33:38,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 17:33:38,723 INFO L87 Difference]: Start difference. First operand 226 states and 626 transitions. Second operand 3 states. [2020-04-17 17:33:38,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 17:33:38,743 INFO L93 Difference]: Finished difference Result 212 states and 578 transitions. [2020-04-17 17:33:38,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 17:33:38,744 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-04-17 17:33:38,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 17:33:38,747 INFO L225 Difference]: With dead ends: 212 [2020-04-17 17:33:38,747 INFO L226 Difference]: Without dead ends: 212 [2020-04-17 17:33:38,748 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 17:33:38,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-04-17 17:33:38,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2020-04-17 17:33:38,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-04-17 17:33:38,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 578 transitions. [2020-04-17 17:33:38,772 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 578 transitions. Word has length 9 [2020-04-17 17:33:38,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 17:33:38,772 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 578 transitions. [2020-04-17 17:33:38,772 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 17:33:38,772 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 578 transitions. [2020-04-17 17:33:38,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-17 17:33:38,774 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 17:33:38,774 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 17:33:38,774 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 17:33:38,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 17:33:38,775 INFO L82 PathProgramCache]: Analyzing trace with hash -2042366299, now seen corresponding path program 1 times [2020-04-17 17:33:38,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 17:33:38,775 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214731495] [2020-04-17 17:33:38,776 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 17:33:38,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 17:33:38,834 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 17:33:38,834 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214731495] [2020-04-17 17:33:38,834 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 17:33:38,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-17 17:33:38,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846037171] [2020-04-17 17:33:38,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 17:33:38,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 17:33:38,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 17:33:38,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 17:33:38,836 INFO L87 Difference]: Start difference. First operand 212 states and 578 transitions. Second operand 3 states. [2020-04-17 17:33:38,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 17:33:38,861 INFO L93 Difference]: Finished difference Result 203 states and 548 transitions. [2020-04-17 17:33:38,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 17:33:38,866 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-04-17 17:33:38,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 17:33:38,868 INFO L225 Difference]: With dead ends: 203 [2020-04-17 17:33:38,869 INFO L226 Difference]: Without dead ends: 203 [2020-04-17 17:33:38,870 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 17:33:38,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-04-17 17:33:38,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2020-04-17 17:33:38,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-04-17 17:33:38,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 548 transitions. [2020-04-17 17:33:38,896 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 548 transitions. Word has length 10 [2020-04-17 17:33:38,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 17:33:38,896 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 548 transitions. [2020-04-17 17:33:38,897 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 17:33:38,897 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 548 transitions. [2020-04-17 17:33:38,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-17 17:33:38,898 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 17:33:38,899 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 17:33:38,899 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 17:33:38,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 17:33:38,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1106702486, now seen corresponding path program 1 times [2020-04-17 17:33:38,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 17:33:38,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284909571] [2020-04-17 17:33:38,900 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 17:33:38,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 17:33:38,979 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 17:33:38,979 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284909571] [2020-04-17 17:33:38,979 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 17:33:38,979 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 17:33:38,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140271239] [2020-04-17 17:33:38,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 17:33:38,980 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 17:33:38,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 17:33:38,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 17:33:38,981 INFO L87 Difference]: Start difference. First operand 203 states and 548 transitions. Second operand 4 states. [2020-04-17 17:33:39,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 17:33:39,024 INFO L93 Difference]: Finished difference Result 248 states and 641 transitions. [2020-04-17 17:33:39,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 17:33:39,026 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-04-17 17:33:39,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 17:33:39,027 INFO L225 Difference]: With dead ends: 248 [2020-04-17 17:33:39,028 INFO L226 Difference]: Without dead ends: 128 [2020-04-17 17:33:39,028 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 17:33:39,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-04-17 17:33:39,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-04-17 17:33:39,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-04-17 17:33:39,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 307 transitions. [2020-04-17 17:33:39,037 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 307 transitions. Word has length 11 [2020-04-17 17:33:39,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 17:33:39,037 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 307 transitions. [2020-04-17 17:33:39,037 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 17:33:39,037 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 307 transitions. [2020-04-17 17:33:39,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-17 17:33:39,039 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 17:33:39,039 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 17:33:39,039 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 17:33:39,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 17:33:39,040 INFO L82 PathProgramCache]: Analyzing trace with hash 550400496, now seen corresponding path program 1 times [2020-04-17 17:33:39,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 17:33:39,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487930238] [2020-04-17 17:33:39,040 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 17:33:39,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 17:33:39,098 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 17:33:39,099 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487930238] [2020-04-17 17:33:39,100 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 17:33:39,100 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 17:33:39,100 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953290812] [2020-04-17 17:33:39,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 17:33:39,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 17:33:39,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 17:33:39,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 17:33:39,101 INFO L87 Difference]: Start difference. First operand 128 states and 307 transitions. Second operand 4 states. [2020-04-17 17:33:39,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 17:33:39,159 INFO L93 Difference]: Finished difference Result 194 states and 456 transitions. [2020-04-17 17:33:39,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 17:33:39,159 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-04-17 17:33:39,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 17:33:39,161 INFO L225 Difference]: With dead ends: 194 [2020-04-17 17:33:39,161 INFO L226 Difference]: Without dead ends: 140 [2020-04-17 17:33:39,161 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 17:33:39,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-04-17 17:33:39,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 128. [2020-04-17 17:33:39,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-04-17 17:33:39,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 297 transitions. [2020-04-17 17:33:39,168 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 297 transitions. Word has length 12 [2020-04-17 17:33:39,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 17:33:39,169 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 297 transitions. [2020-04-17 17:33:39,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 17:33:39,169 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 297 transitions. [2020-04-17 17:33:39,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-17 17:33:39,170 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 17:33:39,170 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 17:33:39,170 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 17:33:39,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 17:33:39,171 INFO L82 PathProgramCache]: Analyzing trace with hash -188087018, now seen corresponding path program 2 times [2020-04-17 17:33:39,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 17:33:39,171 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036563715] [2020-04-17 17:33:39,171 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 17:33:39,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 17:33:39,217 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 17:33:39,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036563715] [2020-04-17 17:33:39,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 17:33:39,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 17:33:39,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568146992] [2020-04-17 17:33:39,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 17:33:39,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 17:33:39,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 17:33:39,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 17:33:39,220 INFO L87 Difference]: Start difference. First operand 128 states and 297 transitions. Second operand 4 states. [2020-04-17 17:33:39,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 17:33:39,248 INFO L93 Difference]: Finished difference Result 146 states and 330 transitions. [2020-04-17 17:33:39,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 17:33:39,250 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-04-17 17:33:39,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 17:33:39,251 INFO L225 Difference]: With dead ends: 146 [2020-04-17 17:33:39,251 INFO L226 Difference]: Without dead ends: 86 [2020-04-17 17:33:39,253 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 17:33:39,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-04-17 17:33:39,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2020-04-17 17:33:39,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-04-17 17:33:39,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 186 transitions. [2020-04-17 17:33:39,259 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 186 transitions. Word has length 12 [2020-04-17 17:33:39,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 17:33:39,259 INFO L479 AbstractCegarLoop]: Abstraction has 86 states and 186 transitions. [2020-04-17 17:33:39,260 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 17:33:39,260 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 186 transitions. [2020-04-17 17:33:39,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-17 17:33:39,263 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 17:33:39,264 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 17:33:39,264 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 17:33:39,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 17:33:39,267 INFO L82 PathProgramCache]: Analyzing trace with hash -118658274, now seen corresponding path program 1 times [2020-04-17 17:33:39,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 17:33:39,268 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011732789] [2020-04-17 17:33:39,268 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 17:33:39,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 17:33:39,315 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 17:33:39,316 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011732789] [2020-04-17 17:33:39,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 17:33:39,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 17:33:39,316 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276942523] [2020-04-17 17:33:39,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 17:33:39,317 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 17:33:39,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 17:33:39,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 17:33:39,318 INFO L87 Difference]: Start difference. First operand 86 states and 186 transitions. Second operand 3 states. [2020-04-17 17:33:39,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 17:33:39,325 INFO L93 Difference]: Finished difference Result 74 states and 154 transitions. [2020-04-17 17:33:39,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 17:33:39,326 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-04-17 17:33:39,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 17:33:39,326 INFO L225 Difference]: With dead ends: 74 [2020-04-17 17:33:39,327 INFO L226 Difference]: Without dead ends: 0 [2020-04-17 17:33:39,327 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 17:33:39,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-17 17:33:39,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-17 17:33:39,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-17 17:33:39,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-17 17:33:39,328 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-04-17 17:33:39,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 17:33:39,329 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-17 17:33:39,329 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 17:33:39,329 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-17 17:33:39,329 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-17 17:33:39,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.04 05:33:39 BasicIcfg [2020-04-17 17:33:39,335 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-17 17:33:39,338 INFO L168 Benchmark]: Toolchain (without parser) took 4831.07 ms. Allocated memory was 145.2 MB in the beginning and 246.4 MB in the end (delta: 101.2 MB). Free memory was 101.8 MB in the beginning and 190.2 MB in the end (delta: -88.5 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. [2020-04-17 17:33:39,339 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-04-17 17:33:39,340 INFO L168 Benchmark]: CACSL2BoogieTranslator took 791.08 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 99.7 MB in the beginning and 160.0 MB in the end (delta: -60.3 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. [2020-04-17 17:33:39,340 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.92 ms. Allocated memory is still 203.4 MB. Free memory was 160.0 MB in the beginning and 158.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-17 17:33:39,341 INFO L168 Benchmark]: Boogie Preprocessor took 33.23 ms. Allocated memory is still 203.4 MB. Free memory was 158.0 MB in the beginning and 156.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-17 17:33:39,342 INFO L168 Benchmark]: RCFGBuilder took 464.42 ms. Allocated memory is still 203.4 MB. Free memory was 156.6 MB in the beginning and 134.5 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-04-17 17:33:39,344 INFO L168 Benchmark]: TraceAbstraction took 3454.11 ms. Allocated memory was 203.4 MB in the beginning and 246.4 MB in the end (delta: 43.0 MB). Free memory was 133.8 MB in the beginning and 190.2 MB in the end (delta: -56.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-04-17 17:33:39,358 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 791.08 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 99.7 MB in the beginning and 160.0 MB in the end (delta: -60.3 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 62.92 ms. Allocated memory is still 203.4 MB. Free memory was 160.0 MB in the beginning and 158.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.23 ms. Allocated memory is still 203.4 MB. Free memory was 158.0 MB in the beginning and 156.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 464.42 ms. Allocated memory is still 203.4 MB. Free memory was 156.6 MB in the beginning and 134.5 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3454.11 ms. Allocated memory was 203.4 MB in the beginning and 246.4 MB in the end (delta: 43.0 MB). Free memory was 133.8 MB in the beginning and 190.2 MB in the end (delta: -56.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.9s, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 667 VarBasedMoverChecksPositive, 35 VarBasedMoverChecksNegative, 11 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2700 CheckedPairsTotal, 59 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, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.3s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 127 SDtfs, 82 SDslu, 111 SDs, 0 SdLazy, 44 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 1780 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...