/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-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe014_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 02:22:34,435 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 02:22:34,438 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 02:22:34,452 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 02:22:34,452 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 02:22:34,453 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 02:22:34,454 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 02:22:34,456 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 02:22:34,458 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 02:22:34,458 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 02:22:34,459 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 02:22:34,460 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 02:22:34,461 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 02:22:34,462 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 02:22:34,463 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 02:22:34,464 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 02:22:34,464 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 02:22:34,465 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 02:22:34,467 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 02:22:34,468 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 02:22:34,470 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 02:22:34,471 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 02:22:34,472 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 02:22:34,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 02:22:34,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 02:22:34,475 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 02:22:34,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 02:22:34,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 02:22:34,476 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 02:22:34,477 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 02:22:34,477 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 02:22:34,478 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 02:22:34,478 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 02:22:34,479 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 02:22:34,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 02:22:34,480 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 02:22:34,481 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 02:22:34,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 02:22:34,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 02:22:34,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 02:22:34,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 02:22:34,484 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-VariableLbe.epf [2020-04-18 02:22:34,497 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 02:22:34,497 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 02:22:34,498 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 02:22:34,499 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 02:22:34,499 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 02:22:34,499 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 02:22:34,499 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 02:22:34,500 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 02:22:34,500 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 02:22:34,500 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 02:22:34,500 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 02:22:34,500 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 02:22:34,500 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 02:22:34,501 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 02:22:34,501 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 02:22:34,501 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 02:22:34,501 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 02:22:34,501 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 02:22:34,502 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 02:22:34,502 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 02:22:34,502 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 02:22:34,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 02:22:34,502 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 02:22:34,503 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 02:22:34,503 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 02:22:34,503 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-18 02:22:34,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 02:22:34,503 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-04-18 02:22:34,504 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 02:22:34,504 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 02:22:34,776 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 02:22:34,787 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 02:22:34,790 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 02:22:34,791 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 02:22:34,792 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 02:22:34,793 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe014_tso.oepc.i [2020-04-18 02:22:34,859 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/044622adb/a89ff02e52d04ce8b59f44efa52850ce/FLAG6d4f00e00 [2020-04-18 02:22:35,387 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 02:22:35,388 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_tso.oepc.i [2020-04-18 02:22:35,401 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/044622adb/a89ff02e52d04ce8b59f44efa52850ce/FLAG6d4f00e00 [2020-04-18 02:22:35,683 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/044622adb/a89ff02e52d04ce8b59f44efa52850ce [2020-04-18 02:22:35,692 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 02:22:35,714 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 02:22:35,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 02:22:35,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 02:22:35,719 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 02:22:35,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 02:22:35" (1/1) ... [2020-04-18 02:22:35,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36b347a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:22:35, skipping insertion in model container [2020-04-18 02:22:35,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 02:22:35" (1/1) ... [2020-04-18 02:22:35,730 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 02:22:35,776 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 02:22:36,254 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 02:22:36,265 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 02:22:36,329 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 02:22:36,401 INFO L208 MainTranslator]: Completed translation [2020-04-18 02:22:36,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:22:36 WrapperNode [2020-04-18 02:22:36,402 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 02:22:36,404 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 02:22:36,404 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 02:22:36,404 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 02:22:36,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:22:36" (1/1) ... [2020-04-18 02:22:36,431 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:22:36" (1/1) ... [2020-04-18 02:22:36,453 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 02:22:36,453 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 02:22:36,453 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 02:22:36,453 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 02:22:36,462 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:22:36" (1/1) ... [2020-04-18 02:22:36,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:22:36" (1/1) ... [2020-04-18 02:22:36,465 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:22:36" (1/1) ... [2020-04-18 02:22:36,465 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:22:36" (1/1) ... [2020-04-18 02:22:36,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:22:36" (1/1) ... [2020-04-18 02:22:36,474 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:22:36" (1/1) ... [2020-04-18 02:22:36,476 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:22:36" (1/1) ... [2020-04-18 02:22:36,479 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 02:22:36,479 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 02:22:36,480 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 02:22:36,480 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 02:22:36,481 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:22:36" (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 02:22:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 02:22:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 02:22:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 02:22:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 02:22:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 02:22:36,548 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 02:22:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 02:22:36,548 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 02:22:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 02:22:36,548 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 02:22:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 02:22:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 02:22:36,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 02:22:36,550 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 02:22:36,943 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 02:22:36,943 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 02:22:36,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 02:22:36 BoogieIcfgContainer [2020-04-18 02:22:36,947 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 02:22:36,948 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 02:22:36,949 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 02:22:36,952 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 02:22:36,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 02:22:35" (1/3) ... [2020-04-18 02:22:36,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158046f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 02:22:36, skipping insertion in model container [2020-04-18 02:22:36,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:22:36" (2/3) ... [2020-04-18 02:22:36,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158046f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 02:22:36, skipping insertion in model container [2020-04-18 02:22:36,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 02:22:36" (3/3) ... [2020-04-18 02:22:36,955 INFO L109 eAbstractionObserver]: Analyzing ICFG safe014_tso.oepc.i [2020-04-18 02:22:36,966 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 02:22:36,966 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 02:22:36,973 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 02:22:36,974 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 02:22:37,007 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:22:37,008 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:22:37,008 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:22:37,009 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:22:37,009 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:22:37,009 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:22:37,011 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:22:37,011 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:22:37,011 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:22:37,012 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:22:37,012 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:22:37,012 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:22:37,013 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:22:37,013 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:22:37,014 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:22:37,014 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:22:37,015 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:22:37,015 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:22:37,021 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:22:37,021 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:22:37,021 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:22:37,022 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:22:37,029 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:22:37,029 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:22:37,030 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:22:37,030 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:22:37,035 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:22:37,035 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:22:37,035 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:22:37,035 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:22:37,051 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 02:22:37,070 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 02:22:37,070 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 02:22:37,070 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 02:22:37,071 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 02:22:37,071 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 02:22:37,071 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 02:22:37,071 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 02:22:37,071 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 02:22:37,086 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-04-18 02:22:37,088 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-04-18 02:22:37,127 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-04-18 02:22:37,128 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 02:22:37,133 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-18 02:22:37,135 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-04-18 02:22:37,156 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-04-18 02:22:37,156 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 02:22:37,157 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-18 02:22:37,159 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-04-18 02:22:37,160 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 02:22:38,574 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-04-18 02:22:38,738 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2020-04-18 02:22:38,775 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2700 [2020-04-18 02:22:38,775 INFO L214 etLargeBlockEncoding]: Total number of compositions: 59 [2020-04-18 02:22:38,779 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-04-18 02:22:38,802 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-04-18 02:22:38,805 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-04-18 02:22:38,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 02:22:38,813 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:22:38,813 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:22:38,814 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:22:38,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:22:38,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1011733384, now seen corresponding path program 1 times [2020-04-18 02:22:38,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:22:38,829 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155883226] [2020-04-18 02:22:38,830 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:22:38,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:22:39,054 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 02:22:39,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155883226] [2020-04-18 02:22:39,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:22:39,056 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-18 02:22:39,057 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593982643] [2020-04-18 02:22:39,062 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 02:22:39,063 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:22:39,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 02:22:39,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 02:22:39,078 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-04-18 02:22:39,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:22:39,149 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-04-18 02:22:39,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 02:22:39,151 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-04-18 02:22:39,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:22:39,167 INFO L225 Difference]: With dead ends: 282 [2020-04-18 02:22:39,167 INFO L226 Difference]: Without dead ends: 218 [2020-04-18 02:22:39,169 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 02:22:39,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-04-18 02:22:39,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-04-18 02:22:39,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-04-18 02:22:39,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-04-18 02:22:39,236 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-04-18 02:22:39,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:22:39,237 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-04-18 02:22:39,237 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 02:22:39,237 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-04-18 02:22:39,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 02:22:39,239 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:22:39,239 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:22:39,239 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:22:39,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:22:39,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1299119847, now seen corresponding path program 1 times [2020-04-18 02:22:39,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:22:39,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393656541] [2020-04-18 02:22:39,240 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:22:39,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:22:39,332 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 02:22:39,332 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393656541] [2020-04-18 02:22:39,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:22:39,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:22:39,334 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732002956] [2020-04-18 02:22:39,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 02:22:39,336 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:22:39,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 02:22:39,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 02:22:39,336 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 3 states. [2020-04-18 02:22:39,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:22:39,360 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-04-18 02:22:39,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 02:22:39,362 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-04-18 02:22:39,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:22:39,364 INFO L225 Difference]: With dead ends: 202 [2020-04-18 02:22:39,365 INFO L226 Difference]: Without dead ends: 202 [2020-04-18 02:22:39,365 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 02:22:39,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-04-18 02:22:39,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-04-18 02:22:39,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-04-18 02:22:39,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-04-18 02:22:39,385 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 9 [2020-04-18 02:22:39,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:22:39,386 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-04-18 02:22:39,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 02:22:39,386 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-04-18 02:22:39,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-18 02:22:39,388 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:22:39,388 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:22:39,388 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:22:39,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:22:39,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1618060859, now seen corresponding path program 1 times [2020-04-18 02:22:39,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:22:39,389 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592203195] [2020-04-18 02:22:39,389 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:22:39,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:22:39,469 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 02:22:39,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592203195] [2020-04-18 02:22:39,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:22:39,470 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-18 02:22:39,470 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883663297] [2020-04-18 02:22:39,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 02:22:39,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:22:39,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 02:22:39,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 02:22:39,472 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-04-18 02:22:39,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:22:39,479 INFO L93 Difference]: Finished difference Result 194 states and 518 transitions. [2020-04-18 02:22:39,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 02:22:39,479 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-04-18 02:22:39,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:22:39,481 INFO L225 Difference]: With dead ends: 194 [2020-04-18 02:22:39,481 INFO L226 Difference]: Without dead ends: 194 [2020-04-18 02:22:39,482 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 02:22:39,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-04-18 02:22:39,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2020-04-18 02:22:39,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-04-18 02:22:39,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 518 transitions. [2020-04-18 02:22:39,496 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 518 transitions. Word has length 10 [2020-04-18 02:22:39,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:22:39,497 INFO L479 AbstractCegarLoop]: Abstraction has 194 states and 518 transitions. [2020-04-18 02:22:39,497 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 02:22:39,497 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 518 transitions. [2020-04-18 02:22:39,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-18 02:22:39,498 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:22:39,499 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:22:39,499 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:22:39,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:22:39,499 INFO L82 PathProgramCache]: Analyzing trace with hash 1106664046, now seen corresponding path program 1 times [2020-04-18 02:22:39,500 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:22:39,500 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823845432] [2020-04-18 02:22:39,500 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:22:39,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:22:39,553 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 02:22:39,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823845432] [2020-04-18 02:22:39,554 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:22:39,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:22:39,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166621132] [2020-04-18 02:22:39,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:22:39,555 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:22:39,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:22:39,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:22:39,555 INFO L87 Difference]: Start difference. First operand 194 states and 518 transitions. Second operand 4 states. [2020-04-18 02:22:39,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:22:39,587 INFO L93 Difference]: Finished difference Result 230 states and 596 transitions. [2020-04-18 02:22:39,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 02:22:39,591 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-04-18 02:22:39,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:22:39,595 INFO L225 Difference]: With dead ends: 230 [2020-04-18 02:22:39,595 INFO L226 Difference]: Without dead ends: 104 [2020-04-18 02:22:39,595 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:22:39,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-04-18 02:22:39,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-04-18 02:22:39,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-04-18 02:22:39,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 246 transitions. [2020-04-18 02:22:39,614 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 246 transitions. Word has length 11 [2020-04-18 02:22:39,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:22:39,614 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 246 transitions. [2020-04-18 02:22:39,614 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:22:39,614 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 246 transitions. [2020-04-18 02:22:39,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-18 02:22:39,616 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:22:39,616 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:22:39,616 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:22:39,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:22:39,618 INFO L82 PathProgramCache]: Analyzing trace with hash -132602240, now seen corresponding path program 1 times [2020-04-18 02:22:39,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:22:39,619 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325122156] [2020-04-18 02:22:39,619 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:22:39,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:22:39,690 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 02:22:39,691 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325122156] [2020-04-18 02:22:39,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:22:39,694 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 02:22:39,694 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357378806] [2020-04-18 02:22:39,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:22:39,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:22:39,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:22:39,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:22:39,696 INFO L87 Difference]: Start difference. First operand 104 states and 246 transitions. Second operand 4 states. [2020-04-18 02:22:39,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:22:39,731 INFO L93 Difference]: Finished difference Result 158 states and 375 transitions. [2020-04-18 02:22:39,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 02:22:39,731 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-04-18 02:22:39,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:22:39,733 INFO L225 Difference]: With dead ends: 158 [2020-04-18 02:22:39,733 INFO L226 Difference]: Without dead ends: 104 [2020-04-18 02:22:39,737 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:22:39,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-04-18 02:22:39,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-04-18 02:22:39,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-04-18 02:22:39,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 244 transitions. [2020-04-18 02:22:39,750 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 244 transitions. Word has length 13 [2020-04-18 02:22:39,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:22:39,751 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 244 transitions. [2020-04-18 02:22:39,751 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:22:39,751 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 244 transitions. [2020-04-18 02:22:39,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-18 02:22:39,752 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:22:39,752 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:22:39,752 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:22:39,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:22:39,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1246852910, now seen corresponding path program 2 times [2020-04-18 02:22:39,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:22:39,755 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412051337] [2020-04-18 02:22:39,755 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:22:39,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:22:39,861 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 02:22:39,861 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412051337] [2020-04-18 02:22:39,861 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:22:39,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:22:39,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151526426] [2020-04-18 02:22:39,862 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:22:39,862 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:22:39,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:22:39,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:22:39,863 INFO L87 Difference]: Start difference. First operand 104 states and 244 transitions. Second operand 4 states. [2020-04-18 02:22:39,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:22:39,899 INFO L93 Difference]: Finished difference Result 127 states and 275 transitions. [2020-04-18 02:22:39,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 02:22:39,899 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-04-18 02:22:39,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:22:39,900 INFO L225 Difference]: With dead ends: 127 [2020-04-18 02:22:39,900 INFO L226 Difference]: Without dead ends: 87 [2020-04-18 02:22:39,901 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:22:39,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-04-18 02:22:39,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-04-18 02:22:39,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-04-18 02:22:39,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 183 transitions. [2020-04-18 02:22:39,905 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 183 transitions. Word has length 13 [2020-04-18 02:22:39,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:22:39,905 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 183 transitions. [2020-04-18 02:22:39,906 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:22:39,906 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 183 transitions. [2020-04-18 02:22:39,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 02:22:39,907 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:22:39,907 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:22:39,907 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:22:39,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:22:39,908 INFO L82 PathProgramCache]: Analyzing trace with hash 433937672, now seen corresponding path program 1 times [2020-04-18 02:22:39,908 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:22:39,908 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502594136] [2020-04-18 02:22:39,908 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:22:39,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:22:39,996 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 02:22:39,996 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502594136] [2020-04-18 02:22:39,997 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:22:39,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 02:22:39,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52418345] [2020-04-18 02:22:39,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 02:22:39,998 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:22:39,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 02:22:39,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:22:39,998 INFO L87 Difference]: Start difference. First operand 87 states and 183 transitions. Second operand 5 states. [2020-04-18 02:22:40,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:22:40,069 INFO L93 Difference]: Finished difference Result 90 states and 175 transitions. [2020-04-18 02:22:40,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 02:22:40,070 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-04-18 02:22:40,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:22:40,071 INFO L225 Difference]: With dead ends: 90 [2020-04-18 02:22:40,071 INFO L226 Difference]: Without dead ends: 65 [2020-04-18 02:22:40,071 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-18 02:22:40,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-04-18 02:22:40,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-04-18 02:22:40,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-04-18 02:22:40,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 119 transitions. [2020-04-18 02:22:40,075 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 119 transitions. Word has length 14 [2020-04-18 02:22:40,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:22:40,075 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 119 transitions. [2020-04-18 02:22:40,075 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 02:22:40,076 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 119 transitions. [2020-04-18 02:22:40,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 02:22:40,076 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:22:40,077 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:22:40,077 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:22:40,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:22:40,077 INFO L82 PathProgramCache]: Analyzing trace with hash 567169455, now seen corresponding path program 1 times [2020-04-18 02:22:40,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:22:40,078 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543663840] [2020-04-18 02:22:40,078 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:22:40,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:22:40,192 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 02:22:40,192 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543663840] [2020-04-18 02:22:40,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:22:40,193 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 02:22:40,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813967609] [2020-04-18 02:22:40,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 02:22:40,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:22:40,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 02:22:40,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-18 02:22:40,195 INFO L87 Difference]: Start difference. First operand 65 states and 119 transitions. Second operand 6 states. [2020-04-18 02:22:40,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:22:40,250 INFO L93 Difference]: Finished difference Result 62 states and 111 transitions. [2020-04-18 02:22:40,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-18 02:22:40,250 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-04-18 02:22:40,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:22:40,251 INFO L225 Difference]: With dead ends: 62 [2020-04-18 02:22:40,251 INFO L226 Difference]: Without dead ends: 54 [2020-04-18 02:22:40,251 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-04-18 02:22:40,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-04-18 02:22:40,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-04-18 02:22:40,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-04-18 02:22:40,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 97 transitions. [2020-04-18 02:22:40,254 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 97 transitions. Word has length 15 [2020-04-18 02:22:40,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:22:40,254 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 97 transitions. [2020-04-18 02:22:40,254 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 02:22:40,255 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 97 transitions. [2020-04-18 02:22:40,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 02:22:40,255 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:22:40,255 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:22:40,256 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:22:40,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:22:40,256 INFO L82 PathProgramCache]: Analyzing trace with hash -412776350, now seen corresponding path program 1 times [2020-04-18 02:22:40,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:22:40,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415120439] [2020-04-18 02:22:40,257 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:22:40,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:22:40,286 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 02:22:40,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415120439] [2020-04-18 02:22:40,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:22:40,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 02:22:40,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659248868] [2020-04-18 02:22:40,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:22:40,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:22:40,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:22:40,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:22:40,289 INFO L87 Difference]: Start difference. First operand 54 states and 97 transitions. Second operand 4 states. [2020-04-18 02:22:40,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:22:40,304 INFO L93 Difference]: Finished difference Result 63 states and 110 transitions. [2020-04-18 02:22:40,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 02:22:40,305 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-04-18 02:22:40,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:22:40,306 INFO L225 Difference]: With dead ends: 63 [2020-04-18 02:22:40,306 INFO L226 Difference]: Without dead ends: 35 [2020-04-18 02:22:40,306 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:22:40,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-04-18 02:22:40,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-04-18 02:22:40,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-04-18 02:22:40,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 56 transitions. [2020-04-18 02:22:40,308 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 56 transitions. Word has length 17 [2020-04-18 02:22:40,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:22:40,308 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 56 transitions. [2020-04-18 02:22:40,309 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:22:40,309 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 56 transitions. [2020-04-18 02:22:40,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 02:22:40,309 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:22:40,309 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:22:40,310 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:22:40,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:22:40,310 INFO L82 PathProgramCache]: Analyzing trace with hash 361560856, now seen corresponding path program 2 times [2020-04-18 02:22:40,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:22:40,310 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095896920] [2020-04-18 02:22:40,311 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:22:40,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:22:40,341 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 02:22:40,342 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095896920] [2020-04-18 02:22:40,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:22:40,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 02:22:40,342 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070210402] [2020-04-18 02:22:40,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:22:40,343 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:22:40,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:22:40,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:22:40,343 INFO L87 Difference]: Start difference. First operand 35 states and 56 transitions. Second operand 4 states. [2020-04-18 02:22:40,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:22:40,359 INFO L93 Difference]: Finished difference Result 48 states and 77 transitions. [2020-04-18 02:22:40,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 02:22:40,359 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-04-18 02:22:40,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:22:40,360 INFO L225 Difference]: With dead ends: 48 [2020-04-18 02:22:40,360 INFO L226 Difference]: Without dead ends: 30 [2020-04-18 02:22:40,360 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:22:40,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-04-18 02:22:40,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-04-18 02:22:40,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-04-18 02:22:40,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-04-18 02:22:40,362 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-04-18 02:22:40,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:22:40,363 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-04-18 02:22:40,363 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:22:40,363 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-04-18 02:22:40,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 02:22:40,363 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:22:40,363 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:22:40,364 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:22:40,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:22:40,364 INFO L82 PathProgramCache]: Analyzing trace with hash -550831814, now seen corresponding path program 3 times [2020-04-18 02:22:40,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:22:40,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237485416] [2020-04-18 02:22:40,365 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:22:40,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:22:40,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:22:40,398 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237485416] [2020-04-18 02:22:40,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:22:40,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:22:40,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498525795] [2020-04-18 02:22:40,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:22:40,399 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:22:40,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:22:40,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:22:40,400 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 4 states. [2020-04-18 02:22:40,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:22:40,414 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-04-18 02:22:40,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 02:22:40,414 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-04-18 02:22:40,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:22:40,414 INFO L225 Difference]: With dead ends: 29 [2020-04-18 02:22:40,415 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 02:22:40,415 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:22:40,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 02:22:40,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 02:22:40,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 02:22:40,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 02:22:40,416 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-04-18 02:22:40,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:22:40,416 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 02:22:40,416 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:22:40,417 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 02:22:40,417 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 02:22:40,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 02:22:40 BasicIcfg [2020-04-18 02:22:40,421 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 02:22:40,423 INFO L168 Benchmark]: Toolchain (without parser) took 4729.18 ms. Allocated memory was 144.2 MB in the beginning and 247.5 MB in the end (delta: 103.3 MB). Free memory was 100.9 MB in the beginning and 161.4 MB in the end (delta: -60.4 MB). Peak memory consumption was 42.8 MB. Max. memory is 7.1 GB. [2020-04-18 02:22:40,424 INFO L168 Benchmark]: CDTParser took 1.36 ms. Allocated memory is still 144.2 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-04-18 02:22:40,425 INFO L168 Benchmark]: CACSL2BoogieTranslator took 687.59 ms. Allocated memory was 144.2 MB in the beginning and 200.8 MB in the end (delta: 56.6 MB). Free memory was 99.1 MB in the beginning and 157.2 MB in the end (delta: -58.2 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2020-04-18 02:22:40,425 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.20 ms. Allocated memory is still 200.8 MB. Free memory was 157.2 MB in the beginning and 155.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 02:22:40,426 INFO L168 Benchmark]: Boogie Preprocessor took 26.07 ms. Allocated memory is still 200.8 MB. Free memory was 155.2 MB in the beginning and 153.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-18 02:22:40,427 INFO L168 Benchmark]: RCFGBuilder took 467.87 ms. Allocated memory is still 200.8 MB. Free memory was 153.9 MB in the beginning and 131.9 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-04-18 02:22:40,428 INFO L168 Benchmark]: TraceAbstraction took 3472.41 ms. Allocated memory was 200.8 MB in the beginning and 247.5 MB in the end (delta: 46.7 MB). Free memory was 131.2 MB in the beginning and 161.4 MB in the end (delta: -30.2 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. [2020-04-18 02:22:40,432 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.36 ms. Allocated memory is still 144.2 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 687.59 ms. Allocated memory was 144.2 MB in the beginning and 200.8 MB in the end (delta: 56.6 MB). Free memory was 99.1 MB in the beginning and 157.2 MB in the end (delta: -58.2 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.20 ms. Allocated memory is still 200.8 MB. Free memory was 157.2 MB in the beginning and 155.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.07 ms. Allocated memory is still 200.8 MB. Free memory was 155.2 MB in the beginning and 153.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 467.87 ms. Allocated memory is still 200.8 MB. Free memory was 153.9 MB in the beginning and 131.9 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3472.41 ms. Allocated memory was 200.8 MB in the beginning and 247.5 MB in the end (delta: 46.7 MB). Free memory was 131.2 MB in the beginning and 161.4 MB in the end (delta: -30.2 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 657 VarBasedMoverChecksPositive, 26 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2700 CheckedPairsTotal, 59 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.3s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 214 SDtfs, 159 SDslu, 247 SDs, 0 SdLazy, 138 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 133 ConstructedInterpolants, 0 QuantifiedInterpolants, 4629 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...