/usr/bin/java -Xmx16000000000 -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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 14:45:30,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 14:45:30,272 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 14:45:30,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 14:45:30,330 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 14:45:30,334 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 14:45:30,339 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 14:45:30,349 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 14:45:30,352 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 14:45:30,361 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 14:45:30,362 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 14:45:30,363 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 14:45:30,364 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 14:45:30,368 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 14:45:30,370 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 14:45:30,373 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 14:45:30,374 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 14:45:30,379 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 14:45:30,387 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 14:45:30,392 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 14:45:30,394 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 14:45:30,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 14:45:30,399 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 14:45:30,400 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 14:45:30,404 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-20 14:45:30,404 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-20 14:45:30,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-20 14:45:30,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-20 14:45:30,406 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-20 14:45:30,408 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-20 14:45:30,408 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 14:45:30,409 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 14:45:30,410 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 14:45:30,411 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 14:45:30,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 14:45:30,413 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 14:45:30,414 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 14:45:30,414 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 14:45:30,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 14:45:30,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 14:45:30,416 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 14:45:30,417 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-01-20 14:45:30,446 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 14:45:30,447 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 14:45:30,448 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 14:45:30,449 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 14:45:30,449 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 14:45:30,449 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 14:45:30,449 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 14:45:30,450 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 14:45:30,450 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 14:45:30,450 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 14:45:30,450 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 14:45:30,451 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 14:45:30,451 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 14:45:30,451 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 14:45:30,451 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 14:45:30,452 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 14:45:30,452 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 14:45:30,452 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 14:45:30,452 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 14:45:30,453 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 14:45:30,453 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 14:45:30,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 14:45:30,453 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 14:45:30,454 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 14:45:30,454 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 14:45:30,454 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 14:45:30,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 14:45:30,454 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 14:45:30,455 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 14:45:30,455 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 14:45:30,455 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 14:45:30,835 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 14:45:30,884 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 14:45:30,890 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 14:45:30,891 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 14:45:30,892 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 14:45:30,894 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i [2021-01-20 14:45:30,985 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/158e3ba07/e7f0952cc7c2491ebbbad91c4727b1da/FLAG58c70cfbc [2021-01-20 14:45:31,676 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 14:45:31,676 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i [2021-01-20 14:45:31,692 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/158e3ba07/e7f0952cc7c2491ebbbad91c4727b1da/FLAG58c70cfbc [2021-01-20 14:45:31,936 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/158e3ba07/e7f0952cc7c2491ebbbad91c4727b1da [2021-01-20 14:45:31,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 14:45:31,941 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 14:45:31,945 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 14:45:31,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 14:45:31,949 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 14:45:31,950 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:45:31" (1/1) ... [2021-01-20 14:45:31,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aa938ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:31, skipping insertion in model container [2021-01-20 14:45:31,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:45:31" (1/1) ... [2021-01-20 14:45:31,965 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 14:45:32,008 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 14:45:32,489 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:45:32,499 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 14:45:32,546 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:45:32,643 INFO L208 MainTranslator]: Completed translation [2021-01-20 14:45:32,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:32 WrapperNode [2021-01-20 14:45:32,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 14:45:32,645 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 14:45:32,645 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 14:45:32,645 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 14:45:32,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:32" (1/1) ... [2021-01-20 14:45:32,671 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:32" (1/1) ... [2021-01-20 14:45:32,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 14:45:32,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 14:45:32,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 14:45:32,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 14:45:32,707 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:32" (1/1) ... [2021-01-20 14:45:32,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:32" (1/1) ... [2021-01-20 14:45:32,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:32" (1/1) ... [2021-01-20 14:45:32,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:32" (1/1) ... [2021-01-20 14:45:32,719 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:32" (1/1) ... [2021-01-20 14:45:32,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:32" (1/1) ... [2021-01-20 14:45:32,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:32" (1/1) ... [2021-01-20 14:45:32,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 14:45:32,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 14:45:32,732 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 14:45:32,732 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 14:45:32,736 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:32" (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 [2021-01-20 14:45:32,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 14:45:32,826 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 14:45:32,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 14:45:32,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 14:45:32,828 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 14:45:32,829 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 14:45:32,830 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 14:45:32,830 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 14:45:32,830 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-20 14:45:32,830 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-20 14:45:32,830 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-01-20 14:45:32,831 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-01-20 14:45:32,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 14:45:32,831 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 14:45:32,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 14:45:32,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 14:45:32,833 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 14:45:33,336 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 14:45:33,337 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 14:45:33,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:45:33 BoogieIcfgContainer [2021-01-20 14:45:33,339 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 14:45:33,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 14:45:33,341 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 14:45:33,344 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 14:45:33,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 02:45:31" (1/3) ... [2021-01-20 14:45:33,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60cd1b1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:45:33, skipping insertion in model container [2021-01-20 14:45:33,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:32" (2/3) ... [2021-01-20 14:45:33,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60cd1b1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:45:33, skipping insertion in model container [2021-01-20 14:45:33,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:45:33" (3/3) ... [2021-01-20 14:45:33,348 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_tso.oepc.i [2021-01-20 14:45:33,364 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 14:45:33,364 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 14:45:33,368 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 14:45:33,369 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 14:45:33,404 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,404 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,404 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,404 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,405 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,405 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,405 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,405 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,406 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,406 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,406 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,406 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,407 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,407 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,407 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,407 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,407 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,408 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,408 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,408 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,408 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,409 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,409 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,409 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,410 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,410 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,410 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,410 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,410 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,411 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,411 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,411 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,411 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,412 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,412 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,412 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,413 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,413 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,413 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,413 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,414 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,414 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,414 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,414 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,415 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,415 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,415 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,415 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,418 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,418 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,418 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,418 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,425 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,425 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,425 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,426 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,428 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,429 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,429 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,429 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,431 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,432 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,432 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,432 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:33,436 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 14:45:33,449 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-01-20 14:45:33,472 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 14:45:33,473 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 14:45:33,473 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 14:45:33,473 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 14:45:33,473 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 14:45:33,473 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 14:45:33,473 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 14:45:33,474 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 14:45:33,487 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 100 places, 90 transitions, 200 flow [2021-01-20 14:45:43,790 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 54312 states, 54310 states have (on average 4.420254096851409) internal successors, (240064), 54311 states have internal predecessors, (240064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:45:43,937 INFO L276 IsEmpty]: Start isEmpty. Operand has 54312 states, 54310 states have (on average 4.420254096851409) internal successors, (240064), 54311 states have internal predecessors, (240064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:45:44,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-01-20 14:45:44,069 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:45:44,070 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:45:44,071 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:45:44,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:45:44,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1521340881, now seen corresponding path program 1 times [2021-01-20 14:45:44,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:45:44,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347515267] [2021-01-20 14:45:44,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:45:44,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:45:44,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:45:44,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347515267] [2021-01-20 14:45:44,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:45:44,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:45:44,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078506608] [2021-01-20 14:45:44,904 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:45:44,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:45:44,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:45:44,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:45:45,006 INFO L87 Difference]: Start difference. First operand has 54312 states, 54310 states have (on average 4.420254096851409) internal successors, (240064), 54311 states have internal predecessors, (240064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:45:47,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:45:47,550 INFO L93 Difference]: Finished difference Result 68928 states and 296104 transitions. [2021-01-20 14:45:47,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:45:47,553 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-01-20 14:45:47,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:45:47,921 INFO L225 Difference]: With dead ends: 68928 [2021-01-20 14:45:47,921 INFO L226 Difference]: Without dead ends: 23820 [2021-01-20 14:45:47,923 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:45:47,923 INFO L78 Accepts]: Start accepts. Automaton has 23820 states. Word has length 46 [2021-01-20 14:45:47,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:45:47,925 INFO L481 AbstractCegarLoop]: Abstraction has 23820 states. [2021-01-20 14:45:47,926 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:45:47,926 INFO L276 IsEmpty]: Start isEmpty. Operand 23820 states. [2021-01-20 14:45:47,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-01-20 14:45:47,988 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:45:47,989 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:45:47,989 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 14:45:47,989 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:45:47,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:45:47,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1443855120, now seen corresponding path program 1 times [2021-01-20 14:45:47,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:45:47,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012547453] [2021-01-20 14:45:47,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:45:48,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:45:48,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:45:48,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012547453] [2021-01-20 14:45:48,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:45:48,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:45:48,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500783227] [2021-01-20 14:45:48,194 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:45:48,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:45:48,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:45:48,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:45:48,198 INFO L87 Difference]: Start difference. First operand 23820 states. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:45:48,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:45:48,876 INFO L93 Difference]: Finished difference Result 28188 states and 118076 transitions. [2021-01-20 14:45:48,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:45:48,877 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-01-20 14:45:48,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:45:49,033 INFO L225 Difference]: With dead ends: 28188 [2021-01-20 14:45:49,033 INFO L226 Difference]: Without dead ends: 23148 [2021-01-20 14:45:49,034 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:45:49,034 INFO L78 Accepts]: Start accepts. Automaton has 23148 states. Word has length 48 [2021-01-20 14:45:49,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:45:49,035 INFO L481 AbstractCegarLoop]: Abstraction has 23148 states. [2021-01-20 14:45:49,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:45:49,035 INFO L276 IsEmpty]: Start isEmpty. Operand 23148 states. [2021-01-20 14:45:49,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-01-20 14:45:49,210 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:45:49,210 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:45:49,210 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 14:45:49,210 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:45:49,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:45:49,211 INFO L82 PathProgramCache]: Analyzing trace with hash 783013961, now seen corresponding path program 1 times [2021-01-20 14:45:49,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:45:49,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668819095] [2021-01-20 14:45:49,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:45:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:45:49,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:45:49,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668819095] [2021-01-20 14:45:49,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:45:49,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:45:49,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62601947] [2021-01-20 14:45:49,405 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:45:49,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:45:49,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:45:49,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:45:49,406 INFO L87 Difference]: Start difference. First operand 23148 states. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:45:50,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:45:50,017 INFO L93 Difference]: Finished difference Result 31156 states and 129678 transitions. [2021-01-20 14:45:50,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:45:50,018 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-01-20 14:45:50,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:45:50,103 INFO L225 Difference]: With dead ends: 31156 [2021-01-20 14:45:50,103 INFO L226 Difference]: Without dead ends: 16792 [2021-01-20 14:45:50,104 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-20 14:45:50,104 INFO L78 Accepts]: Start accepts. Automaton has 16792 states. Word has length 49 [2021-01-20 14:45:50,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:45:50,105 INFO L481 AbstractCegarLoop]: Abstraction has 16792 states. [2021-01-20 14:45:50,105 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:45:50,105 INFO L276 IsEmpty]: Start isEmpty. Operand 16792 states. [2021-01-20 14:45:50,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-20 14:45:50,155 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:45:50,156 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:45:50,156 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 14:45:50,156 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:45:50,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:45:50,157 INFO L82 PathProgramCache]: Analyzing trace with hash 1975787338, now seen corresponding path program 1 times [2021-01-20 14:45:50,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:45:50,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909355068] [2021-01-20 14:45:50,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:45:50,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:45:50,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:45:50,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909355068] [2021-01-20 14:45:50,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:45:50,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:45:50,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524484723] [2021-01-20 14:45:50,325 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:45:50,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:45:50,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:45:50,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:45:50,326 INFO L87 Difference]: Start difference. First operand 16792 states. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:45:50,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:45:50,748 INFO L93 Difference]: Finished difference Result 26200 states and 106082 transitions. [2021-01-20 14:45:50,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:45:50,749 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-01-20 14:45:50,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:45:50,835 INFO L225 Difference]: With dead ends: 26200 [2021-01-20 14:45:50,835 INFO L226 Difference]: Without dead ends: 18584 [2021-01-20 14:45:50,836 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:45:50,836 INFO L78 Accepts]: Start accepts. Automaton has 18584 states. Word has length 51 [2021-01-20 14:45:50,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:45:50,836 INFO L481 AbstractCegarLoop]: Abstraction has 18584 states. [2021-01-20 14:45:50,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:45:50,837 INFO L276 IsEmpty]: Start isEmpty. Operand 18584 states. [2021-01-20 14:45:50,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-01-20 14:45:50,885 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:45:50,885 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:45:50,885 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 14:45:50,885 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:45:50,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:45:50,886 INFO L82 PathProgramCache]: Analyzing trace with hash 350404744, now seen corresponding path program 1 times [2021-01-20 14:45:50,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:45:50,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092645912] [2021-01-20 14:45:50,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:45:50,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:45:51,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:45:51,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092645912] [2021-01-20 14:45:51,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:45:51,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:45:51,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145817297] [2021-01-20 14:45:51,261 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:45:51,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:45:51,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:45:51,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:45:51,262 INFO L87 Difference]: Start difference. First operand 18584 states. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:45:51,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:45:51,539 INFO L93 Difference]: Finished difference Result 20312 states and 80786 transitions. [2021-01-20 14:45:51,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:45:51,539 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-01-20 14:45:51,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:45:51,599 INFO L225 Difference]: With dead ends: 20312 [2021-01-20 14:45:51,599 INFO L226 Difference]: Without dead ends: 16280 [2021-01-20 14:45:51,600 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:45:51,600 INFO L78 Accepts]: Start accepts. Automaton has 16280 states. Word has length 52 [2021-01-20 14:45:51,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:45:51,600 INFO L481 AbstractCegarLoop]: Abstraction has 16280 states. [2021-01-20 14:45:51,601 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:45:51,601 INFO L276 IsEmpty]: Start isEmpty. Operand 16280 states. [2021-01-20 14:45:51,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-01-20 14:45:51,633 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:45:51,634 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:45:51,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 14:45:51,635 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:45:51,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:45:51,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1207661705, now seen corresponding path program 1 times [2021-01-20 14:45:51,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:45:51,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869380046] [2021-01-20 14:45:51,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:45:51,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:45:51,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:45:51,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869380046] [2021-01-20 14:45:51,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:45:51,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:45:51,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072904096] [2021-01-20 14:45:51,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:45:51,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:45:51,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:45:51,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:45:51,777 INFO L87 Difference]: Start difference. First operand 16280 states. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:45:52,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:45:52,295 INFO L93 Difference]: Finished difference Result 25080 states and 99462 transitions. [2021-01-20 14:45:52,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 14:45:52,295 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-01-20 14:45:52,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:45:52,344 INFO L225 Difference]: With dead ends: 25080 [2021-01-20 14:45:52,345 INFO L226 Difference]: Without dead ends: 14700 [2021-01-20 14:45:52,345 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:45:52,345 INFO L78 Accepts]: Start accepts. Automaton has 14700 states. Word has length 54 [2021-01-20 14:45:52,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:45:52,345 INFO L481 AbstractCegarLoop]: Abstraction has 14700 states. [2021-01-20 14:45:52,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:45:52,346 INFO L276 IsEmpty]: Start isEmpty. Operand 14700 states. [2021-01-20 14:45:52,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-01-20 14:45:52,385 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:45:52,386 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:45:52,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-20 14:45:52,386 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:45:52,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:45:52,388 INFO L82 PathProgramCache]: Analyzing trace with hash -1887275789, now seen corresponding path program 2 times [2021-01-20 14:45:52,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:45:52,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876238306] [2021-01-20 14:45:52,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:45:52,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:45:52,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:45:52,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876238306] [2021-01-20 14:45:52,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:45:52,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:45:52,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254311669] [2021-01-20 14:45:52,529 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:45:52,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:45:52,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:45:52,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:45:52,530 INFO L87 Difference]: Start difference. First operand 14700 states. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:45:52,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:45:52,807 INFO L93 Difference]: Finished difference Result 19000 states and 74794 transitions. [2021-01-20 14:45:52,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:45:52,808 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-01-20 14:45:52,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:45:52,849 INFO L225 Difference]: With dead ends: 19000 [2021-01-20 14:45:52,849 INFO L226 Difference]: Without dead ends: 14264 [2021-01-20 14:45:52,849 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:45:52,850 INFO L78 Accepts]: Start accepts. Automaton has 14264 states. Word has length 54 [2021-01-20 14:45:52,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:45:52,850 INFO L481 AbstractCegarLoop]: Abstraction has 14264 states. [2021-01-20 14:45:52,850 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:45:52,850 INFO L276 IsEmpty]: Start isEmpty. Operand 14264 states. [2021-01-20 14:45:52,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-20 14:45:52,870 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:45:52,870 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:45:52,870 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-20 14:45:52,870 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:45:52,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:45:52,871 INFO L82 PathProgramCache]: Analyzing trace with hash 741333027, now seen corresponding path program 1 times [2021-01-20 14:45:52,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:45:52,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110807242] [2021-01-20 14:45:52,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:45:52,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:45:53,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:45:53,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110807242] [2021-01-20 14:45:53,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:45:53,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:45:53,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722349985] [2021-01-20 14:45:53,085 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:45:53,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:45:53,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:45:53,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:45:53,087 INFO L87 Difference]: Start difference. First operand 14264 states. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:45:53,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:45:53,556 INFO L93 Difference]: Finished difference Result 16610 states and 64511 transitions. [2021-01-20 14:45:53,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:45:53,556 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-01-20 14:45:53,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:45:53,590 INFO L225 Difference]: With dead ends: 16610 [2021-01-20 14:45:53,591 INFO L226 Difference]: Without dead ends: 12146 [2021-01-20 14:45:53,591 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-01-20 14:45:53,591 INFO L78 Accepts]: Start accepts. Automaton has 12146 states. Word has length 55 [2021-01-20 14:45:53,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:45:53,592 INFO L481 AbstractCegarLoop]: Abstraction has 12146 states. [2021-01-20 14:45:53,592 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:45:53,592 INFO L276 IsEmpty]: Start isEmpty. Operand 12146 states. [2021-01-20 14:45:53,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-01-20 14:45:53,609 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:45:53,609 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:45:53,610 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-20 14:45:53,610 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:45:53,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:45:53,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1669139404, now seen corresponding path program 1 times [2021-01-20 14:45:53,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:45:53,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948339533] [2021-01-20 14:45:53,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:45:53,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:45:53,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:45:53,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948339533] [2021-01-20 14:45:53,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:45:53,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-20 14:45:53,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094315513] [2021-01-20 14:45:53,753 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-20 14:45:53,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:45:53,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-20 14:45:53,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-20 14:45:53,757 INFO L87 Difference]: Start difference. First operand 12146 states. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:45:54,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:45:54,047 INFO L93 Difference]: Finished difference Result 11237 states and 42401 transitions. [2021-01-20 14:45:54,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-20 14:45:54,047 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-01-20 14:45:54,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:45:54,065 INFO L225 Difference]: With dead ends: 11237 [2021-01-20 14:45:54,065 INFO L226 Difference]: Without dead ends: 7853 [2021-01-20 14:45:54,066 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-01-20 14:45:54,066 INFO L78 Accepts]: Start accepts. Automaton has 7853 states. Word has length 56 [2021-01-20 14:45:54,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:45:54,066 INFO L481 AbstractCegarLoop]: Abstraction has 7853 states. [2021-01-20 14:45:54,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:45:54,066 INFO L276 IsEmpty]: Start isEmpty. Operand 7853 states. [2021-01-20 14:45:54,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-01-20 14:45:54,078 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:45:54,078 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:45:54,078 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-20 14:45:54,078 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:45:54,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:45:54,078 INFO L82 PathProgramCache]: Analyzing trace with hash -10705787, now seen corresponding path program 1 times [2021-01-20 14:45:54,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:45:54,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999807939] [2021-01-20 14:45:54,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:45:54,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:45:54,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:45:54,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999807939] [2021-01-20 14:45:54,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:45:54,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:45:54,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899150997] [2021-01-20 14:45:54,236 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:45:54,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:45:54,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:45:54,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:45:54,237 INFO L87 Difference]: Start difference. First operand 7853 states. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:45:54,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:45:54,416 INFO L93 Difference]: Finished difference Result 10437 states and 38991 transitions. [2021-01-20 14:45:54,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-20 14:45:54,417 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-01-20 14:45:54,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:45:54,433 INFO L225 Difference]: With dead ends: 10437 [2021-01-20 14:45:54,433 INFO L226 Difference]: Without dead ends: 6943 [2021-01-20 14:45:54,433 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:45:54,433 INFO L78 Accepts]: Start accepts. Automaton has 6943 states. Word has length 58 [2021-01-20 14:45:54,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:45:54,434 INFO L481 AbstractCegarLoop]: Abstraction has 6943 states. [2021-01-20 14:45:54,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:45:54,434 INFO L276 IsEmpty]: Start isEmpty. Operand 6943 states. [2021-01-20 14:45:54,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-01-20 14:45:54,654 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:45:54,654 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:45:54,655 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-20 14:45:54,655 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:45:54,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:45:54,655 INFO L82 PathProgramCache]: Analyzing trace with hash 1226318091, now seen corresponding path program 2 times [2021-01-20 14:45:54,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:45:54,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029174426] [2021-01-20 14:45:54,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:45:54,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:45:54,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:45:54,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029174426] [2021-01-20 14:45:54,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:45:54,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-20 14:45:54,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850969840] [2021-01-20 14:45:54,859 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-20 14:45:54,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:45:54,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-20 14:45:54,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-01-20 14:45:54,861 INFO L87 Difference]: Start difference. First operand 6943 states. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:45:55,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:45:55,259 INFO L93 Difference]: Finished difference Result 4837 states and 17444 transitions. [2021-01-20 14:45:55,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-01-20 14:45:55,259 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-01-20 14:45:55,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:45:55,268 INFO L225 Difference]: With dead ends: 4837 [2021-01-20 14:45:55,268 INFO L226 Difference]: Without dead ends: 2537 [2021-01-20 14:45:55,268 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2021-01-20 14:45:55,268 INFO L78 Accepts]: Start accepts. Automaton has 2537 states. Word has length 58 [2021-01-20 14:45:55,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:45:55,269 INFO L481 AbstractCegarLoop]: Abstraction has 2537 states. [2021-01-20 14:45:55,269 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:45:55,269 INFO L276 IsEmpty]: Start isEmpty. Operand 2537 states. [2021-01-20 14:45:55,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-01-20 14:45:55,276 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:45:55,277 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:45:55,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-20 14:45:55,277 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:45:55,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:45:55,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1195573236, now seen corresponding path program 1 times [2021-01-20 14:45:55,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:45:55,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068312616] [2021-01-20 14:45:55,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:45:55,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:45:55,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:45:55,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068312616] [2021-01-20 14:45:55,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:45:55,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:45:55,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749718921] [2021-01-20 14:45:55,411 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:45:55,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:45:55,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:45:55,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:45:55,412 INFO L87 Difference]: Start difference. First operand 2537 states. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:45:55,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:45:55,528 INFO L93 Difference]: Finished difference Result 2213 states and 7697 transitions. [2021-01-20 14:45:55,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 14:45:55,529 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-01-20 14:45:55,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:45:55,529 INFO L225 Difference]: With dead ends: 2213 [2021-01-20 14:45:55,529 INFO L226 Difference]: Without dead ends: 0 [2021-01-20 14:45:55,530 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:45:55,530 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 60 [2021-01-20 14:45:55,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:45:55,530 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-20 14:45:55,530 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:45:55,530 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-20 14:45:55,530 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 14:45:55,531 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-01-20 14:45:55,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 02:45:55 BasicIcfg [2021-01-20 14:45:55,536 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 14:45:55,538 INFO L168 Benchmark]: Toolchain (without parser) took 23596.56 ms. Allocated memory was 302.0 MB in the beginning and 7.6 GB in the end (delta: 7.3 GB). Free memory was 273.3 MB in the beginning and 6.7 GB in the end (delta: -6.4 GB). Peak memory consumption was 861.3 MB. Max. memory is 16.0 GB. [2021-01-20 14:45:55,539 INFO L168 Benchmark]: CDTParser took 0.90 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 14:45:55,540 INFO L168 Benchmark]: CACSL2BoogieTranslator took 698.91 ms. Allocated memory is still 302.0 MB. Free memory was 273.0 MB in the beginning and 262.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.0 GB. [2021-01-20 14:45:55,540 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.46 ms. Allocated memory is still 302.0 MB. Free memory was 262.4 MB in the beginning and 260.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 14:45:55,541 INFO L168 Benchmark]: Boogie Preprocessor took 30.85 ms. Allocated memory is still 302.0 MB. Free memory was 260.3 MB in the beginning and 258.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 14:45:55,542 INFO L168 Benchmark]: RCFGBuilder took 607.63 ms. Allocated memory is still 302.0 MB. Free memory was 258.9 MB in the beginning and 271.1 MB in the end (delta: -12.2 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.0 GB. [2021-01-20 14:45:55,543 INFO L168 Benchmark]: TraceAbstraction took 22195.14 ms. Allocated memory was 302.0 MB in the beginning and 7.6 GB in the end (delta: 7.3 GB). Free memory was 270.3 MB in the beginning and 6.7 GB in the end (delta: -6.4 GB). Peak memory consumption was 857.2 MB. Max. memory is 16.0 GB. [2021-01-20 14:45:55,546 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.90 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 698.91 ms. Allocated memory is still 302.0 MB. Free memory was 273.0 MB in the beginning and 262.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 51.46 ms. Allocated memory is still 302.0 MB. Free memory was 262.4 MB in the beginning and 260.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 30.85 ms. Allocated memory is still 302.0 MB. Free memory was 260.3 MB in the beginning and 258.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 607.63 ms. Allocated memory is still 302.0 MB. Free memory was 258.9 MB in the beginning and 271.1 MB in the end (delta: -12.2 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 22195.14 ms. Allocated memory was 302.0 MB in the beginning and 7.6 GB in the end (delta: 7.3 GB). Free memory was 270.3 MB in the beginning and 6.7 GB in the end (delta: -6.4 GB). Peak memory consumption was 857.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 5 procedures, 88 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 22.0s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 7.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.3s, HoareTripleCheckerStatistics: 1377 SDtfs, 2041 SDslu, 4482 SDs, 0 SdLazy, 503 SolverSat, 114 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54312occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 641 NumberOfCodeBlocks, 641 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 629 ConstructedInterpolants, 0 QuantifiedInterpolants, 88695 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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...