/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-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread/sync01.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 16:09:39,175 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 16:09:39,178 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 16:09:39,197 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 16:09:39,197 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 16:09:39,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 16:09:39,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 16:09:39,211 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 16:09:39,215 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 16:09:39,218 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 16:09:39,220 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 16:09:39,222 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 16:09:39,222 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 16:09:39,224 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 16:09:39,226 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 16:09:39,228 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 16:09:39,229 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 16:09:39,230 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 16:09:39,232 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 16:09:39,236 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 16:09:39,241 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 16:09:39,245 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 16:09:39,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 16:09:39,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 16:09:39,249 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 16:09:39,249 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 16:09:39,249 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 16:09:39,251 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 16:09:39,252 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 16:09:39,253 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 16:09:39,253 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 16:09:39,254 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 16:09:39,255 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 16:09:39,256 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 16:09:39,257 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 16:09:39,257 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 16:09:39,257 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 16:09:39,258 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 16:09:39,258 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 16:09:39,259 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 16:09:39,259 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 16:09:39,260 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-McrStrategy.epf [2020-04-18 16:09:39,277 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 16:09:39,277 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 16:09:39,279 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 16:09:39,279 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 16:09:39,279 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 16:09:39,279 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 16:09:39,280 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 16:09:39,280 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 16:09:39,280 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 16:09:39,280 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 16:09:39,280 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 16:09:39,280 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 16:09:39,281 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 16:09:39,281 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 16:09:39,281 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 16:09:39,281 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 16:09:39,281 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 16:09:39,282 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 16:09:39,282 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 16:09:39,282 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 16:09:39,282 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 16:09:39,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 16:09:39,283 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 16:09:39,283 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 16:09:39,283 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 16:09:39,283 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 16:09:39,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 16:09:39,284 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 16:09:39,284 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 16:09:39,284 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 16:09:39,284 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 16:09:39,572 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 16:09:39,584 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 16:09:39,588 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 16:09:39,589 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 16:09:39,590 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 16:09:39,591 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/sync01.i [2020-04-18 16:09:39,653 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2041988e/b52fb9cbfc8f40d39bcccd3d8ce8c4ad/FLAGf17920af6 [2020-04-18 16:09:40,211 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 16:09:40,216 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i [2020-04-18 16:09:40,231 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2041988e/b52fb9cbfc8f40d39bcccd3d8ce8c4ad/FLAGf17920af6 [2020-04-18 16:09:40,454 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2041988e/b52fb9cbfc8f40d39bcccd3d8ce8c4ad [2020-04-18 16:09:40,463 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 16:09:40,486 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 16:09:40,488 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 16:09:40,488 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 16:09:40,491 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 16:09:40,492 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:09:40" (1/1) ... [2020-04-18 16:09:40,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79b43a28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:40, skipping insertion in model container [2020-04-18 16:09:40,496 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:09:40" (1/1) ... [2020-04-18 16:09:40,504 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 16:09:40,554 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 16:09:41,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 16:09:41,256 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 16:09:41,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 16:09:41,441 INFO L208 MainTranslator]: Completed translation [2020-04-18 16:09:41,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:41 WrapperNode [2020-04-18 16:09:41,442 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 16:09:41,443 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 16:09:41,443 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 16:09:41,443 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 16:09:41,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:41" (1/1) ... [2020-04-18 16:09:41,486 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:41" (1/1) ... [2020-04-18 16:09:41,522 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 16:09:41,523 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 16:09:41,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 16:09:41,523 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 16:09:41,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:41" (1/1) ... [2020-04-18 16:09:41,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:41" (1/1) ... [2020-04-18 16:09:41,550 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:41" (1/1) ... [2020-04-18 16:09:41,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:41" (1/1) ... [2020-04-18 16:09:41,565 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:41" (1/1) ... [2020-04-18 16:09:41,571 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:41" (1/1) ... [2020-04-18 16:09:41,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:41" (1/1) ... [2020-04-18 16:09:41,579 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 16:09:41,579 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 16:09:41,579 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 16:09:41,580 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 16:09:41,581 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:41" (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 16:09:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 16:09:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 16:09:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-04-18 16:09:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-04-18 16:09:41,648 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-04-18 16:09:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-04-18 16:09:41,648 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-04-18 16:09:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 16:09:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-04-18 16:09:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-04-18 16:09:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 16:09:41,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 16:09:41,651 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 16:09:42,091 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 16:09:42,091 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-04-18 16:09:42,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:09:42 BoogieIcfgContainer [2020-04-18 16:09:42,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 16:09:42,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 16:09:42,097 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 16:09:42,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 16:09:42,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:09:40" (1/3) ... [2020-04-18 16:09:42,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50c17e5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:09:42, skipping insertion in model container [2020-04-18 16:09:42,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:41" (2/3) ... [2020-04-18 16:09:42,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50c17e5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:09:42, skipping insertion in model container [2020-04-18 16:09:42,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:09:42" (3/3) ... [2020-04-18 16:09:42,104 INFO L109 eAbstractionObserver]: Analyzing ICFG sync01.i [2020-04-18 16:09:42,115 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 16:09:42,115 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 16:09:42,122 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 16:09:42,123 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 16:09:42,150 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,150 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,150 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,151 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,151 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,151 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,152 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,152 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,152 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,153 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,153 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,153 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,153 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,154 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,154 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,154 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,155 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,155 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,155 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,156 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,156 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,156 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,156 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,157 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,157 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,157 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,161 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,161 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,162 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,162 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,162 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,162 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,163 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,168 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,169 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,169 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,169 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,169 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,170 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,170 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:42,207 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-04-18 16:09:42,223 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 16:09:42,223 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 16:09:42,223 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 16:09:42,224 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 16:09:42,224 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 16:09:42,224 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 16:09:42,224 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 16:09:42,224 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 16:09:42,237 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 91 places, 91 transitions, 204 flow [2020-04-18 16:09:42,288 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 762 states. [2020-04-18 16:09:42,291 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states. [2020-04-18 16:09:42,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-04-18 16:09:42,320 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:09:42,321 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:09:42,322 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:09:42,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:42,329 INFO L82 PathProgramCache]: Analyzing trace with hash -624029613, now seen corresponding path program 1 times [2020-04-18 16:09:42,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:09:42,337 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1357378806] [2020-04-18 16:09:42,370 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:42,432 INFO L259 McrAutomatonBuilder]: Finished intersection with 469 states and 1068 transitions. [2020-04-18 16:09:42,440 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states. [2020-04-18 16:09:42,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-04-18 16:09:42,444 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:09:42,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:42,444 INFO L82 PathProgramCache]: Analyzing trace with hash -624029613, now seen corresponding path program 2 times [2020-04-18 16:09:42,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:09:42,449 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108094011] [2020-04-18 16:09:42,449 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:09:42,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:09:42,690 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 16:09:42,691 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108094011] [2020-04-18 16:09:42,693 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:09:42,694 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 16:09:42,695 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:09:42,727 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:42,963 INFO L259 McrAutomatonBuilder]: Finished intersection with 226 states and 442 transitions. [2020-04-18 16:09:42,963 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:09:42,995 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times. [2020-04-18 16:09:42,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:09:43,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:09:43,002 INFO L87 Difference]: Start difference. First operand 469 states. Second operand 3 states. [2020-04-18 16:09:43,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:43,036 INFO L93 Difference]: Finished difference Result 469 states and 1068 transitions. [2020-04-18 16:09:43,036 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 1068 transitions. [2020-04-18 16:09:43,041 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:09:43,043 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1357378806] [2020-04-18 16:09:43,044 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:09:43,044 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 16:09:43,045 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1357378806] [2020-04-18 16:09:43,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 16:09:43,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:09:43,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:09:43,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:09:43,054 INFO L87 Difference]: Start difference. First operand 762 states. Second operand 3 states. [2020-04-18 16:09:43,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:43,118 INFO L93 Difference]: Finished difference Result 570 states and 1213 transitions. [2020-04-18 16:09:43,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 16:09:43,120 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-04-18 16:09:43,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:09:43,135 INFO L225 Difference]: With dead ends: 570 [2020-04-18 16:09:43,136 INFO L226 Difference]: Without dead ends: 562 [2020-04-18 16:09:43,138 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:09:43,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2020-04-18 16:09:43,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 562. [2020-04-18 16:09:43,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2020-04-18 16:09:43,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 1205 transitions. [2020-04-18 16:09:43,251 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 1205 transitions. Word has length 68 [2020-04-18 16:09:43,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:09:43,252 INFO L479 AbstractCegarLoop]: Abstraction has 562 states and 1205 transitions. [2020-04-18 16:09:43,253 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 16:09:43,253 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 1205 transitions. [2020-04-18 16:09:43,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-04-18 16:09:43,257 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:09:43,257 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:09:43,257 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:09:43,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:43,258 INFO L82 PathProgramCache]: Analyzing trace with hash -1809399259, now seen corresponding path program 1 times [2020-04-18 16:09:43,258 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:09:43,258 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [486632420] [2020-04-18 16:09:43,263 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:43,302 INFO L259 McrAutomatonBuilder]: Finished intersection with 469 states and 1068 transitions. [2020-04-18 16:09:43,305 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states. [2020-04-18 16:09:43,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-04-18 16:09:43,308 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:09:43,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:43,309 INFO L82 PathProgramCache]: Analyzing trace with hash -257028087, now seen corresponding path program 2 times [2020-04-18 16:09:43,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:09:43,310 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659375689] [2020-04-18 16:09:43,310 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:09:43,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:09:43,490 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 16:09:43,490 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659375689] [2020-04-18 16:09:43,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:09:43,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:09:43,491 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:09:43,506 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:43,955 INFO L259 McrAutomatonBuilder]: Finished intersection with 226 states and 442 transitions. [2020-04-18 16:09:43,956 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:09:43,972 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 16:09:43,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 16:09:43,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 16:09:43,973 INFO L87 Difference]: Start difference. First operand 469 states. Second operand 4 states. [2020-04-18 16:09:44,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:44,001 INFO L93 Difference]: Finished difference Result 599 states and 1355 transitions. [2020-04-18 16:09:44,001 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 1355 transitions. [2020-04-18 16:09:44,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-04-18 16:09:44,003 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 16:09:44,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:44,003 INFO L82 PathProgramCache]: Analyzing trace with hash -942225913, now seen corresponding path program 3 times [2020-04-18 16:09:44,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:09:44,004 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131717922] [2020-04-18 16:09:44,004 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:09:44,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:09:44,137 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 16:09:44,138 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131717922] [2020-04-18 16:09:44,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:09:44,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-18 16:09:44,139 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:09:44,154 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:44,309 INFO L259 McrAutomatonBuilder]: Finished intersection with 262 states and 538 transitions. [2020-04-18 16:09:44,309 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:09:44,367 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times. [2020-04-18 16:09:44,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 16:09:44,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 16:09:44,368 INFO L87 Difference]: Start difference. First operand 599 states and 1355 transitions. Second operand 6 states. [2020-04-18 16:09:44,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:44,470 INFO L93 Difference]: Finished difference Result 711 states and 1590 transitions. [2020-04-18 16:09:44,471 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 1590 transitions. [2020-04-18 16:09:44,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-04-18 16:09:44,473 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 16:09:44,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:44,473 INFO L82 PathProgramCache]: Analyzing trace with hash -1809399259, now seen corresponding path program 4 times [2020-04-18 16:09:44,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:09:44,474 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847965027] [2020-04-18 16:09:44,474 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:09:44,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:09:44,618 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 16:09:44,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847965027] [2020-04-18 16:09:44,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:09:44,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 16:09:44,619 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:09:44,635 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:44,816 INFO L259 McrAutomatonBuilder]: Finished intersection with 226 states and 438 transitions. [2020-04-18 16:09:44,816 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:09:44,917 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times. [2020-04-18 16:09:44,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 16:09:44,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-04-18 16:09:44,918 INFO L87 Difference]: Start difference. First operand 711 states and 1590 transitions. Second operand 8 states. [2020-04-18 16:09:45,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:45,251 INFO L93 Difference]: Finished difference Result 711 states and 1590 transitions. [2020-04-18 16:09:45,251 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 1590 transitions. [2020-04-18 16:09:45,253 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:09:45,254 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [486632420] [2020-04-18 16:09:45,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:09:45,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 16:09:45,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [486632420] [2020-04-18 16:09:45,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-04-18 16:09:45,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:09:45,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 16:09:45,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2020-04-18 16:09:45,260 INFO L87 Difference]: Start difference. First operand 562 states and 1205 transitions. Second operand 11 states. [2020-04-18 16:09:45,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:45,607 INFO L93 Difference]: Finished difference Result 334 states and 683 transitions. [2020-04-18 16:09:45,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-04-18 16:09:45,608 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 68 [2020-04-18 16:09:45,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:09:45,610 INFO L225 Difference]: With dead ends: 334 [2020-04-18 16:09:45,610 INFO L226 Difference]: Without dead ends: 292 [2020-04-18 16:09:45,612 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 194 SyntacticMatches, 12 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462 [2020-04-18 16:09:45,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2020-04-18 16:09:45,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2020-04-18 16:09:45,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-04-18 16:09:45,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 599 transitions. [2020-04-18 16:09:45,622 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 599 transitions. Word has length 68 [2020-04-18 16:09:45,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:09:45,623 INFO L479 AbstractCegarLoop]: Abstraction has 292 states and 599 transitions. [2020-04-18 16:09:45,623 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-04-18 16:09:45,623 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 599 transitions. [2020-04-18 16:09:45,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-04-18 16:09:45,624 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:09:45,625 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:09:45,625 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:09:45,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:45,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1207218393, now seen corresponding path program 1 times [2020-04-18 16:09:45,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:09:45,626 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1752143622] [2020-04-18 16:09:45,629 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:45,645 INFO L259 McrAutomatonBuilder]: Finished intersection with 469 states and 1068 transitions. [2020-04-18 16:09:45,649 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states. [2020-04-18 16:09:45,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-04-18 16:09:45,651 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:09:45,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:45,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1559958581, now seen corresponding path program 2 times [2020-04-18 16:09:45,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:09:45,652 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284621396] [2020-04-18 16:09:45,652 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:09:45,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:09:45,714 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 16:09:45,715 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284621396] [2020-04-18 16:09:45,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:09:45,715 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:09:45,715 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:09:45,731 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:45,932 INFO L259 McrAutomatonBuilder]: Finished intersection with 217 states and 424 transitions. [2020-04-18 16:09:45,933 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:09:45,948 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 16:09:45,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 16:09:45,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 16:09:45,949 INFO L87 Difference]: Start difference. First operand 469 states. Second operand 4 states. [2020-04-18 16:09:45,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:45,965 INFO L93 Difference]: Finished difference Result 593 states and 1343 transitions. [2020-04-18 16:09:45,965 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 1343 transitions. [2020-04-18 16:09:45,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-04-18 16:09:45,967 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 16:09:45,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:45,967 INFO L82 PathProgramCache]: Analyzing trace with hash -244955657, now seen corresponding path program 3 times [2020-04-18 16:09:45,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:09:45,968 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559599195] [2020-04-18 16:09:45,968 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:09:45,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:09:46,064 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 16:09:46,066 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559599195] [2020-04-18 16:09:46,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:09:46,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-18 16:09:46,067 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:09:46,082 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:46,200 INFO L259 McrAutomatonBuilder]: Finished intersection with 244 states and 502 transitions. [2020-04-18 16:09:46,200 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:09:46,249 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times. [2020-04-18 16:09:46,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 16:09:46,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 16:09:46,250 INFO L87 Difference]: Start difference. First operand 593 states and 1343 transitions. Second operand 6 states. [2020-04-18 16:09:46,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:46,310 INFO L93 Difference]: Finished difference Result 687 states and 1542 transitions. [2020-04-18 16:09:46,310 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 1542 transitions. [2020-04-18 16:09:46,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-04-18 16:09:46,312 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 16:09:46,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:46,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1207218393, now seen corresponding path program 4 times [2020-04-18 16:09:46,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:09:46,314 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497527721] [2020-04-18 16:09:46,314 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:09:46,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:09:46,457 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 16:09:46,458 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497527721] [2020-04-18 16:09:46,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:09:46,459 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 16:09:46,460 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:09:46,495 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:46,597 INFO L259 McrAutomatonBuilder]: Finished intersection with 202 states and 390 transitions. [2020-04-18 16:09:46,597 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:09:46,695 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 16 times. [2020-04-18 16:09:46,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 16:09:46,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-04-18 16:09:46,696 INFO L87 Difference]: Start difference. First operand 687 states and 1542 transitions. Second operand 7 states. [2020-04-18 16:09:46,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:46,820 INFO L93 Difference]: Finished difference Result 687 states and 1542 transitions. [2020-04-18 16:09:46,820 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 1542 transitions. [2020-04-18 16:09:46,822 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:09:46,823 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1752143622] [2020-04-18 16:09:46,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:09:46,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 16:09:46,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1752143622] [2020-04-18 16:09:46,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 16:09:46,825 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:09:46,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 16:09:46,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2020-04-18 16:09:46,825 INFO L87 Difference]: Start difference. First operand 292 states and 599 transitions. Second operand 9 states. [2020-04-18 16:09:47,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:47,011 INFO L93 Difference]: Finished difference Result 281 states and 567 transitions. [2020-04-18 16:09:47,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-04-18 16:09:47,016 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 68 [2020-04-18 16:09:47,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:09:47,017 INFO L225 Difference]: With dead ends: 281 [2020-04-18 16:09:47,017 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 16:09:47,018 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 186 SyntacticMatches, 34 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2020-04-18 16:09:47,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 16:09:47,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 16:09:47,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 16:09:47,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 16:09:47,018 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 68 [2020-04-18 16:09:47,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:09:47,019 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 16:09:47,019 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 16:09:47,019 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 16:09:47,019 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:09:47,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 04:09:47 BasicIcfg [2020-04-18 16:09:47,025 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 16:09:47,029 INFO L168 Benchmark]: Toolchain (without parser) took 6561.62 ms. Allocated memory was 144.7 MB in the beginning and 554.7 MB in the end (delta: 410.0 MB). Free memory was 100.8 MB in the beginning and 281.3 MB in the end (delta: -180.4 MB). Peak memory consumption was 229.5 MB. Max. memory is 7.1 GB. [2020-04-18 16:09:47,031 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-04-18 16:09:47,032 INFO L168 Benchmark]: CACSL2BoogieTranslator took 954.71 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 99.0 MB in the beginning and 137.8 MB in the end (delta: -38.9 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2020-04-18 16:09:47,033 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.07 ms. Allocated memory is still 202.4 MB. Free memory was 137.8 MB in the beginning and 135.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-04-18 16:09:47,034 INFO L168 Benchmark]: Boogie Preprocessor took 55.98 ms. Allocated memory is still 202.4 MB. Free memory was 135.8 MB in the beginning and 133.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-04-18 16:09:47,035 INFO L168 Benchmark]: RCFGBuilder took 516.14 ms. Allocated memory is still 202.4 MB. Free memory was 133.7 MB in the beginning and 107.1 MB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2020-04-18 16:09:47,040 INFO L168 Benchmark]: TraceAbstraction took 4928.04 ms. Allocated memory was 202.4 MB in the beginning and 554.7 MB in the end (delta: 352.3 MB). Free memory was 107.1 MB in the beginning and 281.3 MB in the end (delta: -174.2 MB). Peak memory consumption was 178.2 MB. Max. memory is 7.1 GB. [2020-04-18 16:09:47,047 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 954.71 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 99.0 MB in the beginning and 137.8 MB in the end (delta: -38.9 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 80.07 ms. Allocated memory is still 202.4 MB. Free memory was 137.8 MB in the beginning and 135.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 55.98 ms. Allocated memory is still 202.4 MB. Free memory was 135.8 MB in the beginning and 133.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 516.14 ms. Allocated memory is still 202.4 MB. Free memory was 133.7 MB in the beginning and 107.1 MB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4928.04 ms. Allocated memory was 202.4 MB in the beginning and 554.7 MB in the end (delta: 352.3 MB). Free memory was 107.1 MB in the beginning and 281.3 MB in the end (delta: -174.2 MB). Peak memory consumption was 178.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 947]: 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 3 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 277 SDtfs, 248 SDslu, 732 SDs, 0 SdLazy, 293 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 537 GetRequests, 449 SyntacticMatches, 46 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=762occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...