/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe018_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 15:39:05,267 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 15:39:05,270 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 15:39:05,320 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 15:39:05,321 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 15:39:05,325 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 15:39:05,329 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 15:39:05,337 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 15:39:05,341 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 15:39:05,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 15:39:05,350 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 15:39:05,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 15:39:05,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 15:39:05,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 15:39:05,355 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 15:39:05,356 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 15:39:05,358 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 15:39:05,359 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 15:39:05,361 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 15:39:05,363 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 15:39:05,365 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 15:39:05,367 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 15:39:05,368 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 15:39:05,369 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 15:39:05,372 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 15:39:05,393 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 15:39:05,394 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 15:39:05,395 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 15:39:05,397 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 15:39:05,399 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 15:39:05,399 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 15:39:05,400 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 15:39:05,401 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 15:39:05,401 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 15:39:05,402 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 15:39:05,403 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 15:39:05,404 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-11-09 15:39:05,469 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 15:39:05,470 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 15:39:05,475 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 15:39:05,475 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 15:39:05,475 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 15:39:05,476 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 15:39:05,476 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 15:39:05,476 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 15:39:05,476 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 15:39:05,477 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 15:39:05,478 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 15:39:05,478 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 15:39:05,479 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 15:39:05,479 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 15:39:05,479 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 15:39:05,479 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 15:39:05,480 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 15:39:05,480 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 15:39:05,480 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 15:39:05,480 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 15:39:05,481 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 15:39:05,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 15:39:05,481 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 15:39:05,482 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 15:39:05,482 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 15:39:05,482 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 15:39:05,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 15:39:05,483 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 15:39:05,483 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 15:39:05,483 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 15:39:05,483 INFO L138 SettingsManager]: * Interpolant automaton=MCR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 15:39:05,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 15:39:05,906 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 15:39:05,910 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 15:39:05,912 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 15:39:05,917 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 15:39:05,919 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe018_tso.opt.i [2020-11-09 15:39:06,005 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3e26f17c/fd1f294446c2433681d1e47bcad3a40d/FLAG0919fa591 [2020-11-09 15:39:06,739 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 15:39:06,740 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe018_tso.opt.i [2020-11-09 15:39:06,773 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3e26f17c/fd1f294446c2433681d1e47bcad3a40d/FLAG0919fa591 [2020-11-09 15:39:07,022 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3e26f17c/fd1f294446c2433681d1e47bcad3a40d [2020-11-09 15:39:07,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 15:39:07,033 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 15:39:07,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 15:39:07,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 15:39:07,041 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 15:39:07,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:39:07" (1/1) ... [2020-11-09 15:39:07,047 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71a94a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:07, skipping insertion in model container [2020-11-09 15:39:07,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:39:07" (1/1) ... [2020-11-09 15:39:07,058 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 15:39:07,129 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 15:39:07,577 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:39:07,595 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 15:39:07,677 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:39:07,790 INFO L208 MainTranslator]: Completed translation [2020-11-09 15:39:07,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:07 WrapperNode [2020-11-09 15:39:07,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 15:39:07,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 15:39:07,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 15:39:07,792 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 15:39:07,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:07" (1/1) ... [2020-11-09 15:39:07,819 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:07" (1/1) ... [2020-11-09 15:39:07,844 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 15:39:07,845 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 15:39:07,845 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 15:39:07,846 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 15:39:07,855 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:07" (1/1) ... [2020-11-09 15:39:07,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:07" (1/1) ... [2020-11-09 15:39:07,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:07" (1/1) ... [2020-11-09 15:39:07,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:07" (1/1) ... [2020-11-09 15:39:07,866 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:07" (1/1) ... [2020-11-09 15:39:07,869 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:07" (1/1) ... [2020-11-09 15:39:07,871 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:07" (1/1) ... [2020-11-09 15:39:07,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 15:39:07,876 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 15:39:07,876 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 15:39:07,876 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 15:39:07,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:07" (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 [2020-11-09 15:39:07,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 15:39:07,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 15:39:07,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 15:39:07,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 15:39:07,958 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 15:39:07,958 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 15:39:07,958 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 15:39:07,958 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 15:39:07,959 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 15:39:07,959 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 15:39:07,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 15:39:07,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 15:39:07,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 15:39:07,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 15:39:07,962 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 15:39:08,425 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 15:39:08,426 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 15:39:08,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:39:08 BoogieIcfgContainer [2020-11-09 15:39:08,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 15:39:08,430 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 15:39:08,430 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 15:39:08,434 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 15:39:08,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:39:07" (1/3) ... [2020-11-09 15:39:08,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a1884c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:39:08, skipping insertion in model container [2020-11-09 15:39:08,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:07" (2/3) ... [2020-11-09 15:39:08,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a1884c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:39:08, skipping insertion in model container [2020-11-09 15:39:08,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:39:08" (3/3) ... [2020-11-09 15:39:08,438 INFO L111 eAbstractionObserver]: Analyzing ICFG safe018_tso.opt.i [2020-11-09 15:39:08,453 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 15:39:08,454 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 15:39:08,457 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 15:39:08,458 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 15:39:08,489 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,490 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,490 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,490 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,490 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,491 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,491 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,491 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,492 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,492 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,492 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,492 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,493 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,493 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,493 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,493 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,494 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,494 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,495 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,495 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,495 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,495 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,496 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,496 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,496 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,496 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,497 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,497 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,497 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,497 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,498 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,498 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,498 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,498 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,501 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,501 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,502 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,502 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,508 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,508 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,508 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,509 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,515 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,515 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,515 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,516 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:08,518 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 15:39:08,531 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 15:39:08,557 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 15:39:08,557 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 15:39:08,557 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 15:39:08,558 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 15:39:08,558 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 15:39:08,558 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 15:39:08,558 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 15:39:08,558 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 15:39:08,572 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 15:39:08,573 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 78 transitions, 171 flow [2020-11-09 15:39:08,577 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 78 transitions, 171 flow [2020-11-09 15:39:08,579 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 78 transitions, 171 flow [2020-11-09 15:39:08,637 INFO L129 PetriNetUnfolder]: 3/75 cut-off events. [2020-11-09 15:39:08,638 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 15:39:08,648 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 75 events. 3/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2020-11-09 15:39:08,656 INFO L116 LiptonReduction]: Number of co-enabled transitions 1348 [2020-11-09 15:39:11,374 WARN L194 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-11-09 15:39:11,562 WARN L194 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-11-09 15:39:11,862 WARN L194 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-11-09 15:39:12,183 WARN L194 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-11-09 15:39:12,419 WARN L194 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 15:39:12,529 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 15:39:12,654 WARN L194 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 15:39:12,792 WARN L194 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 15:39:12,796 INFO L131 LiptonReduction]: Checked pairs total: 2462 [2020-11-09 15:39:12,796 INFO L133 LiptonReduction]: Total number of compositions: 71 [2020-11-09 15:39:12,805 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-11-09 15:39:12,830 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 274 states. [2020-11-09 15:39:12,832 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states. [2020-11-09 15:39:12,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 15:39:12,840 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:39:12,841 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:39:12,841 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:39:12,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:39:12,847 INFO L82 PathProgramCache]: Analyzing trace with hash 911607414, now seen corresponding path program 1 times [2020-11-09 15:39:12,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:39:12,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595519518] [2020-11-09 15:39:12,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:39:13,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:39:13,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:39:13,068 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595519518] [2020-11-09 15:39:13,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:39:13,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:39:13,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [9758531] [2020-11-09 15:39:13,071 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:39:13,074 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:39:13,089 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-11-09 15:39:13,089 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:39:13,094 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:39:13,095 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-09 15:39:13,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:39:13,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-09 15:39:13,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 15:39:13,114 INFO L87 Difference]: Start difference. First operand 274 states. Second operand 2 states. [2020-11-09 15:39:13,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:39:13,135 INFO L93 Difference]: Finished difference Result 274 states and 786 transitions. [2020-11-09 15:39:13,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-09 15:39:13,137 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-09 15:39:13,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:39:13,157 INFO L225 Difference]: With dead ends: 274 [2020-11-09 15:39:13,157 INFO L226 Difference]: Without dead ends: 226 [2020-11-09 15:39:13,159 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 15:39:13,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-11-09 15:39:13,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-11-09 15:39:13,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-11-09 15:39:13,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 634 transitions. [2020-11-09 15:39:13,266 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 634 transitions. Word has length 8 [2020-11-09 15:39:13,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:39:13,267 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 634 transitions. [2020-11-09 15:39:13,268 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-09 15:39:13,268 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 634 transitions. [2020-11-09 15:39:13,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 15:39:13,271 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:39:13,271 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:39:13,271 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 15:39:13,271 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:39:13,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:39:13,276 INFO L82 PathProgramCache]: Analyzing trace with hash -1804948320, now seen corresponding path program 1 times [2020-11-09 15:39:13,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:39:13,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231308880] [2020-11-09 15:39:13,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:39:13,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:39:13,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:39:13,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231308880] [2020-11-09 15:39:13,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:39:13,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:39:13,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [569282107] [2020-11-09 15:39:13,453 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:39:13,454 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:39:13,456 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-11-09 15:39:13,456 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:39:13,457 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:39:13,458 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:39:13,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:39:13,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:39:13,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:39:13,459 INFO L87 Difference]: Start difference. First operand 226 states and 634 transitions. Second operand 4 states. [2020-11-09 15:39:13,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:39:13,504 INFO L93 Difference]: Finished difference Result 250 states and 668 transitions. [2020-11-09 15:39:13,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 15:39:13,505 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-09 15:39:13,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:39:13,508 INFO L225 Difference]: With dead ends: 250 [2020-11-09 15:39:13,508 INFO L226 Difference]: Without dead ends: 202 [2020-11-09 15:39:13,509 INFO L677 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 [2020-11-09 15:39:13,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-11-09 15:39:13,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-11-09 15:39:13,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-11-09 15:39:13,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 552 transitions. [2020-11-09 15:39:13,524 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 552 transitions. Word has length 9 [2020-11-09 15:39:13,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:39:13,525 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 552 transitions. [2020-11-09 15:39:13,525 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:39:13,525 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 552 transitions. [2020-11-09 15:39:13,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 15:39:13,526 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:39:13,527 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:39:13,527 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 15:39:13,527 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:39:13,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:39:13,528 INFO L82 PathProgramCache]: Analyzing trace with hash 834020007, now seen corresponding path program 1 times [2020-11-09 15:39:13,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:39:13,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895091058] [2020-11-09 15:39:13,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:39:13,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:39:13,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:39:13,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895091058] [2020-11-09 15:39:13,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:39:13,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:39:13,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1826363122] [2020-11-09 15:39:13,608 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:39:13,609 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:39:13,611 INFO L252 McrAutomatonBuilder]: Finished intersection with 16 states and 20 transitions. [2020-11-09 15:39:13,611 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:39:13,680 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:39:13,681 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:39:13,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:39:13,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:39:13,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:39:13,682 INFO L87 Difference]: Start difference. First operand 202 states and 552 transitions. Second operand 4 states. [2020-11-09 15:39:13,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:39:13,708 INFO L93 Difference]: Finished difference Result 220 states and 576 transitions. [2020-11-09 15:39:13,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 15:39:13,708 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-09 15:39:13,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:39:13,710 INFO L225 Difference]: With dead ends: 220 [2020-11-09 15:39:13,711 INFO L226 Difference]: Without dead ends: 184 [2020-11-09 15:39:13,711 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:39:13,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-11-09 15:39:13,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2020-11-09 15:39:13,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-11-09 15:39:13,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 492 transitions. [2020-11-09 15:39:13,723 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 492 transitions. Word has length 10 [2020-11-09 15:39:13,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:39:13,723 INFO L481 AbstractCegarLoop]: Abstraction has 184 states and 492 transitions. [2020-11-09 15:39:13,723 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:39:13,723 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 492 transitions. [2020-11-09 15:39:13,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 15:39:13,725 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:39:13,725 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:39:13,725 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 15:39:13,725 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:39:13,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:39:13,726 INFO L82 PathProgramCache]: Analyzing trace with hash 83805114, now seen corresponding path program 1 times [2020-11-09 15:39:13,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:39:13,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159001591] [2020-11-09 15:39:13,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:39:13,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:39:13,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:39:13,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159001591] [2020-11-09 15:39:13,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:39:13,844 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:39:13,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1302754608] [2020-11-09 15:39:13,845 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:39:13,846 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:39:13,848 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 28 transitions. [2020-11-09 15:39:13,849 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:39:13,960 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:39:13,962 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:39:13,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:39:13,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:39:13,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:39:13,964 INFO L87 Difference]: Start difference. First operand 184 states and 492 transitions. Second operand 5 states. [2020-11-09 15:39:14,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:39:14,038 INFO L93 Difference]: Finished difference Result 241 states and 629 transitions. [2020-11-09 15:39:14,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 15:39:14,041 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-11-09 15:39:14,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:39:14,042 INFO L225 Difference]: With dead ends: 241 [2020-11-09 15:39:14,043 INFO L226 Difference]: Without dead ends: 142 [2020-11-09 15:39:14,043 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-09 15:39:14,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-11-09 15:39:14,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2020-11-09 15:39:14,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-11-09 15:39:14,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 354 transitions. [2020-11-09 15:39:14,050 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 354 transitions. Word has length 11 [2020-11-09 15:39:14,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:39:14,050 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 354 transitions. [2020-11-09 15:39:14,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:39:14,050 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 354 transitions. [2020-11-09 15:39:14,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 15:39:14,052 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:39:14,052 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:39:14,052 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 15:39:14,052 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:39:14,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:39:14,053 INFO L82 PathProgramCache]: Analyzing trace with hash -976750188, now seen corresponding path program 1 times [2020-11-09 15:39:14,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:39:14,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723671651] [2020-11-09 15:39:14,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:39:14,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:39:14,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:39:14,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723671651] [2020-11-09 15:39:14,120 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:39:14,120 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:39:14,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1470189457] [2020-11-09 15:39:14,120 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:39:14,122 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:39:14,125 INFO L252 McrAutomatonBuilder]: Finished intersection with 28 states and 46 transitions. [2020-11-09 15:39:14,125 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:39:14,225 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:39:14,225 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:39:14,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:39:14,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:39:14,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:39:14,227 INFO L87 Difference]: Start difference. First operand 142 states and 354 transitions. Second operand 5 states. [2020-11-09 15:39:14,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:39:14,311 INFO L93 Difference]: Finished difference Result 172 states and 419 transitions. [2020-11-09 15:39:14,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 15:39:14,312 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-11-09 15:39:14,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:39:14,313 INFO L225 Difference]: With dead ends: 172 [2020-11-09 15:39:14,313 INFO L226 Difference]: Without dead ends: 76 [2020-11-09 15:39:14,314 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-09 15:39:14,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-11-09 15:39:14,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-11-09 15:39:14,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-11-09 15:39:14,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 169 transitions. [2020-11-09 15:39:14,320 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 169 transitions. Word has length 12 [2020-11-09 15:39:14,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:39:14,321 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 169 transitions. [2020-11-09 15:39:14,321 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:39:14,321 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 169 transitions. [2020-11-09 15:39:14,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 15:39:14,322 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:39:14,322 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:39:14,322 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 15:39:14,322 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:39:14,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:39:14,323 INFO L82 PathProgramCache]: Analyzing trace with hash -254241509, now seen corresponding path program 1 times [2020-11-09 15:39:14,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:39:14,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588674884] [2020-11-09 15:39:14,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:39:14,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:39:14,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:39:14,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588674884] [2020-11-09 15:39:14,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:39:14,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:39:14,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [474845220] [2020-11-09 15:39:14,400 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:39:14,402 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:39:14,405 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 25 transitions. [2020-11-09 15:39:14,405 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:39:14,439 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:39:14,457 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:39:14,458 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:39:14,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:39:14,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:39:14,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:39:14,459 INFO L87 Difference]: Start difference. First operand 76 states and 169 transitions. Second operand 4 states. [2020-11-09 15:39:14,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:39:14,515 INFO L93 Difference]: Finished difference Result 87 states and 174 transitions. [2020-11-09 15:39:14,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 15:39:14,518 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-09 15:39:14,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:39:14,519 INFO L225 Difference]: With dead ends: 87 [2020-11-09 15:39:14,519 INFO L226 Difference]: Without dead ends: 66 [2020-11-09 15:39:14,520 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:39:14,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-11-09 15:39:14,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-11-09 15:39:14,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-11-09 15:39:14,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 133 transitions. [2020-11-09 15:39:14,524 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 133 transitions. Word has length 13 [2020-11-09 15:39:14,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:39:14,524 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 133 transitions. [2020-11-09 15:39:14,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:39:14,525 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 133 transitions. [2020-11-09 15:39:14,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 15:39:14,525 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:39:14,525 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:39:14,526 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 15:39:14,526 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:39:14,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:39:14,527 INFO L82 PathProgramCache]: Analyzing trace with hash 734665460, now seen corresponding path program 1 times [2020-11-09 15:39:14,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:39:14,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982433686] [2020-11-09 15:39:14,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:39:14,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:39:14,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:39:14,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982433686] [2020-11-09 15:39:14,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:39:14,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 15:39:14,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [126844631] [2020-11-09 15:39:14,618 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:39:14,621 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:39:14,623 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 22 transitions. [2020-11-09 15:39:14,624 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:39:14,650 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3719#(<= ~__unbuffered_cnt~0 0)] [2020-11-09 15:39:14,650 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 15:39:14,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:39:14,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 15:39:14,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 15:39:14,652 INFO L87 Difference]: Start difference. First operand 66 states and 133 transitions. Second operand 6 states. [2020-11-09 15:39:14,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:39:14,710 INFO L93 Difference]: Finished difference Result 62 states and 108 transitions. [2020-11-09 15:39:14,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 15:39:14,711 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-09 15:39:14,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:39:14,711 INFO L225 Difference]: With dead ends: 62 [2020-11-09 15:39:14,712 INFO L226 Difference]: Without dead ends: 47 [2020-11-09 15:39:14,712 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-09 15:39:14,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-09 15:39:14,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-11-09 15:39:14,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-09 15:39:14,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 78 transitions. [2020-11-09 15:39:14,714 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 78 transitions. Word has length 14 [2020-11-09 15:39:14,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:39:14,715 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 78 transitions. [2020-11-09 15:39:14,715 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 15:39:14,715 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 78 transitions. [2020-11-09 15:39:14,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 15:39:14,716 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:39:14,716 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:39:14,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 15:39:14,716 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:39:14,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:39:14,717 INFO L82 PathProgramCache]: Analyzing trace with hash 1299079363, now seen corresponding path program 1 times [2020-11-09 15:39:14,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:39:14,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967165901] [2020-11-09 15:39:14,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:39:14,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:39:14,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:39:14,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967165901] [2020-11-09 15:39:14,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:39:14,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 15:39:14,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [821936217] [2020-11-09 15:39:14,800 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:39:14,802 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:39:14,805 INFO L252 McrAutomatonBuilder]: Finished intersection with 21 states and 25 transitions. [2020-11-09 15:39:14,806 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:39:14,824 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:39:14,846 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3884#(<= ~__unbuffered_cnt~0 0)] [2020-11-09 15:39:14,846 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 15:39:14,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:39:14,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 15:39:14,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-09 15:39:14,847 INFO L87 Difference]: Start difference. First operand 47 states and 78 transitions. Second operand 7 states. [2020-11-09 15:39:14,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:39:14,908 INFO L93 Difference]: Finished difference Result 40 states and 62 transitions. [2020-11-09 15:39:14,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 15:39:14,908 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-11-09 15:39:14,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:39:14,909 INFO L225 Difference]: With dead ends: 40 [2020-11-09 15:39:14,909 INFO L226 Difference]: Without dead ends: 34 [2020-11-09 15:39:14,909 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-11-09 15:39:14,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-09 15:39:14,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-11-09 15:39:14,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-09 15:39:14,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 52 transitions. [2020-11-09 15:39:14,911 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 52 transitions. Word has length 15 [2020-11-09 15:39:14,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:39:14,912 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 52 transitions. [2020-11-09 15:39:14,912 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 15:39:14,912 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 52 transitions. [2020-11-09 15:39:14,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 15:39:14,912 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:39:14,913 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:39:14,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-09 15:39:14,913 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:39:14,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:39:14,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1284707522, now seen corresponding path program 1 times [2020-11-09 15:39:14,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:39:14,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103856162] [2020-11-09 15:39:14,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:39:14,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:39:14,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:39:14,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103856162] [2020-11-09 15:39:14,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:39:14,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 15:39:14,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [208144542] [2020-11-09 15:39:14,976 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:39:14,978 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:39:14,982 INFO L252 McrAutomatonBuilder]: Finished intersection with 22 states and 25 transitions. [2020-11-09 15:39:14,982 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:39:14,994 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:39:14,994 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:39:14,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:39:14,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:39:14,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:39:14,996 INFO L87 Difference]: Start difference. First operand 34 states and 52 transitions. Second operand 5 states. [2020-11-09 15:39:15,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:39:15,030 INFO L93 Difference]: Finished difference Result 33 states and 51 transitions. [2020-11-09 15:39:15,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 15:39:15,030 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-11-09 15:39:15,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:39:15,031 INFO L225 Difference]: With dead ends: 33 [2020-11-09 15:39:15,031 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 15:39:15,031 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-09 15:39:15,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 15:39:15,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 15:39:15,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 15:39:15,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 15:39:15,032 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-09 15:39:15,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:39:15,032 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 15:39:15,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:39:15,032 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 15:39:15,033 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 15:39:15,033 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-09 15:39:15,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 03:39:15 BasicIcfg [2020-11-09 15:39:15,037 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 15:39:15,039 INFO L168 Benchmark]: Toolchain (without parser) took 8010.71 ms. Allocated memory was 158.3 MB in the beginning and 229.6 MB in the end (delta: 71.3 MB). Free memory was 132.7 MB in the beginning and 116.2 MB in the end (delta: 16.6 MB). Peak memory consumption was 88.9 MB. Max. memory is 8.0 GB. [2020-11-09 15:39:15,039 INFO L168 Benchmark]: CDTParser took 0.92 ms. Allocated memory is still 158.3 MB. Free memory is still 132.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 15:39:15,040 INFO L168 Benchmark]: CACSL2BoogieTranslator took 754.74 ms. Allocated memory is still 158.3 MB. Free memory was 132.1 MB in the beginning and 133.5 MB in the end (delta: -1.4 MB). Peak memory consumption was 28.1 MB. Max. memory is 8.0 GB. [2020-11-09 15:39:15,041 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.60 ms. Allocated memory is still 158.3 MB. Free memory was 133.5 MB in the beginning and 131.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 15:39:15,042 INFO L168 Benchmark]: Boogie Preprocessor took 29.84 ms. Allocated memory is still 158.3 MB. Free memory was 131.9 MB in the beginning and 130.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 15:39:15,042 INFO L168 Benchmark]: RCFGBuilder took 552.74 ms. Allocated memory is still 158.3 MB. Free memory was 130.3 MB in the beginning and 108.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-09 15:39:15,043 INFO L168 Benchmark]: TraceAbstraction took 6606.81 ms. Allocated memory was 158.3 MB in the beginning and 229.6 MB in the end (delta: 71.3 MB). Free memory was 107.8 MB in the beginning and 116.2 MB in the end (delta: -8.4 MB). Peak memory consumption was 62.9 MB. Max. memory is 8.0 GB. [2020-11-09 15:39:15,047 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.92 ms. Allocated memory is still 158.3 MB. Free memory is still 132.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 754.74 ms. Allocated memory is still 158.3 MB. Free memory was 132.1 MB in the beginning and 133.5 MB in the end (delta: -1.4 MB). Peak memory consumption was 28.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 52.60 ms. Allocated memory is still 158.3 MB. Free memory was 133.5 MB in the beginning and 131.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 29.84 ms. Allocated memory is still 158.3 MB. Free memory was 131.9 MB in the beginning and 130.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 552.74 ms. Allocated memory is still 158.3 MB. Free memory was 130.3 MB in the beginning and 108.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6606.81 ms. Allocated memory was 158.3 MB in the beginning and 229.6 MB in the end (delta: 71.3 MB). Free memory was 107.8 MB in the beginning and 116.2 MB in the end (delta: -8.4 MB). Peak memory consumption was 62.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 736 VarBasedMoverChecksPositive, 20 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 46 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.2s, 85 PlacesBefore, 31 PlacesAfterwards, 78 TransitionsBefore, 22 TransitionsAfterwards, 1348 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 2 ChoiceCompositions, 71 TotalNumberOfCompositions, 2462 MoverChecksTotal - PositiveResult [Line: 17]: 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, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.4s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.2s, HoareTripleCheckerStatistics: 171 SDtfs, 162 SDslu, 266 SDs, 0 SdLazy, 132 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 49 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred 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, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 109 NumberOfCodeBlocks, 109 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 3684 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...