/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-keepdead.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-aa1e80b [2020-12-18 00:04:32,198 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-18 00:04:32,201 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-18 00:04:32,248 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-18 00:04:32,249 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-18 00:04:32,253 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-18 00:04:32,258 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-18 00:04:32,265 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-18 00:04:32,269 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-18 00:04:32,275 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-18 00:04:32,276 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-18 00:04:32,278 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-18 00:04:32,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-18 00:04:32,281 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-18 00:04:32,283 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-18 00:04:32,285 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-18 00:04:32,286 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-18 00:04:32,290 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-18 00:04:32,297 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-18 00:04:32,305 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-18 00:04:32,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-18 00:04:32,309 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-18 00:04:32,310 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-18 00:04:32,313 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-18 00:04:32,322 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-18 00:04:32,326 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-18 00:04:32,327 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-18 00:04:32,329 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-18 00:04:32,330 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-18 00:04:32,331 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-18 00:04:32,332 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-18 00:04:32,332 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-18 00:04:32,333 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-18 00:04:32,333 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-18 00:04:32,334 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-18 00:04:32,335 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-18 00:04:32,336 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-keepdead.epf [2020-12-18 00:04:32,397 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-18 00:04:32,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-18 00:04:32,403 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-18 00:04:32,403 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-18 00:04:32,403 INFO L138 SettingsManager]: * Use SBE=true [2020-12-18 00:04:32,404 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-18 00:04:32,404 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-18 00:04:32,404 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-18 00:04:32,404 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-18 00:04:32,405 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-18 00:04:32,406 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-18 00:04:32,406 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-18 00:04:32,407 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-18 00:04:32,407 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-18 00:04:32,407 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-18 00:04:32,407 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-18 00:04:32,407 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-18 00:04:32,408 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-18 00:04:32,408 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-18 00:04:32,408 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-18 00:04:32,409 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-18 00:04:32,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-18 00:04:32,409 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-18 00:04:32,409 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-18 00:04:32,410 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-18 00:04:32,410 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-18 00:04:32,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-18 00:04:32,410 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-12-18 00:04:32,410 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-18 00:04:32,411 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2020-12-18 00:04:32,411 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2020-12-18 00:04:32,411 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-18 00:04:32,800 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-18 00:04:32,825 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-18 00:04:32,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-18 00:04:32,830 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-18 00:04:32,831 INFO L275 PluginConnector]: CDTParser initialized [2020-12-18 00:04:32,832 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2020-12-18 00:04:32,915 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6107a79c9/2213ed2565a34b929282307ba0ca78fe/FLAGa144b41a4 [2020-12-18 00:04:33,768 INFO L306 CDTParser]: Found 1 translation units. [2020-12-18 00:04:33,769 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2020-12-18 00:04:33,794 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6107a79c9/2213ed2565a34b929282307ba0ca78fe/FLAGa144b41a4 [2020-12-18 00:04:33,985 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6107a79c9/2213ed2565a34b929282307ba0ca78fe [2020-12-18 00:04:33,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-18 00:04:33,994 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-12-18 00:04:33,999 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-18 00:04:34,000 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-18 00:04:34,005 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-18 00:04:34,005 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 12:04:33" (1/1) ... [2020-12-18 00:04:34,010 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@631f1dea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:34, skipping insertion in model container [2020-12-18 00:04:34,010 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 12:04:33" (1/1) ... [2020-12-18 00:04:34,019 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-18 00:04:34,092 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-18 00:04:34,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-18 00:04:34,484 INFO L203 MainTranslator]: Completed pre-run [2020-12-18 00:04:34,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-18 00:04:34,652 INFO L208 MainTranslator]: Completed translation [2020-12-18 00:04:34,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:34 WrapperNode [2020-12-18 00:04:34,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-18 00:04:34,654 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-18 00:04:34,655 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-18 00:04:34,657 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-18 00:04:34,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:34" (1/1) ... [2020-12-18 00:04:34,700 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:34" (1/1) ... [2020-12-18 00:04:34,750 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-18 00:04:34,751 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-18 00:04:34,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-18 00:04:34,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-18 00:04:34,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:34" (1/1) ... [2020-12-18 00:04:34,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:34" (1/1) ... [2020-12-18 00:04:34,764 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:34" (1/1) ... [2020-12-18 00:04:34,765 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:34" (1/1) ... [2020-12-18 00:04:34,772 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:34" (1/1) ... [2020-12-18 00:04:34,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:34" (1/1) ... [2020-12-18 00:04:34,777 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:34" (1/1) ... [2020-12-18 00:04:34,781 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-18 00:04:34,782 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-18 00:04:34,782 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-18 00:04:34,782 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-18 00:04:34,783 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-18 00:04:34,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-18 00:04:34,876 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-18 00:04:34,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-18 00:04:34,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-18 00:04:34,876 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-18 00:04:34,877 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-18 00:04:34,877 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-18 00:04:34,877 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-18 00:04:34,877 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-18 00:04:34,877 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-18 00:04:34,877 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-12-18 00:04:34,877 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-12-18 00:04:34,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-18 00:04:34,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-18 00:04:34,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-18 00:04:34,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-18 00:04:34,880 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-18 00:04:35,473 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-18 00:04:35,473 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-18 00:04:35,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 12:04:35 BoogieIcfgContainer [2020-12-18 00:04:35,476 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-18 00:04:35,478 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-18 00:04:35,478 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-18 00:04:35,481 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-18 00:04:35,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 12:04:33" (1/3) ... [2020-12-18 00:04:35,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a0ee769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 12:04:35, skipping insertion in model container [2020-12-18 00:04:35,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:34" (2/3) ... [2020-12-18 00:04:35,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a0ee769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 12:04:35, skipping insertion in model container [2020-12-18 00:04:35,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 12:04:35" (3/3) ... [2020-12-18 00:04:35,485 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_tso.oepc.i [2020-12-18 00:04:35,503 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-18 00:04:35,503 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-18 00:04:35,507 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-18 00:04:35,509 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-18 00:04:35,542 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,542 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,542 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,543 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,543 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,543 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,543 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,543 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,544 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,544 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,545 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,545 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,545 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,546 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,546 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,546 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,546 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,546 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,546 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,547 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,547 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,547 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,547 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,548 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,548 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,548 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,548 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,549 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,549 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,549 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,549 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,549 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,550 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,550 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,550 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,550 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,551 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,551 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,551 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,551 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,552 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,552 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,552 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,552 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,553 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,553 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,553 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,553 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,556 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,556 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,556 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,557 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,564 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,564 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,564 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,565 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,567 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,567 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,567 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,568 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,572 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,572 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,572 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,572 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:35,574 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-18 00:04:35,589 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-12-18 00:04:35,614 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-18 00:04:35,615 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-18 00:04:35,615 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-18 00:04:35,615 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-18 00:04:35,615 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-18 00:04:35,615 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-18 00:04:35,615 INFO L383 AbstractCegarLoop]: Minimize is NONE [2020-12-18 00:04:35,616 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-18 00:04:35,628 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 105 places, 95 transitions, 210 flow [2020-12-18 00:04:49,254 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 73649 states, 73647 states have (on average 4.471315871658044) internal successors, (329299), 73648 states have internal predecessors, (329299), 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) [2020-12-18 00:04:49,475 INFO L276 IsEmpty]: Start isEmpty. Operand has 73649 states, 73647 states have (on average 4.471315871658044) internal successors, (329299), 73648 states have internal predecessors, (329299), 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) [2020-12-18 00:04:49,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-18 00:04:49,629 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:04:49,631 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] [2020-12-18 00:04:49,631 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:04:49,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:04:49,639 INFO L82 PathProgramCache]: Analyzing trace with hash 207288984, now seen corresponding path program 1 times [2020-12-18 00:04:49,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:04:49,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274301259] [2020-12-18 00:04:49,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:04:49,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:04:50,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 00:04:50,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274301259] [2020-12-18 00:04:50,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:04:50,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-18 00:04:50,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294425550] [2020-12-18 00:04:50,329 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-18 00:04:50,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:04:50,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-18 00:04:50,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-18 00:04:50,502 INFO L87 Difference]: Start difference. First operand has 73649 states, 73647 states have (on average 4.471315871658044) internal successors, (329299), 73648 states have internal predecessors, (329299), 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 8.166666666666666) internal successors, (49), 6 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) [2020-12-18 00:04:51,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:04:51,949 INFO L93 Difference]: Finished difference Result 93543 states and 406523 transitions. [2020-12-18 00:04:51,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-18 00:04:51,951 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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 [2020-12-18 00:04:51,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:04:51,953 INFO L763 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 [2020-12-18 00:04:51,953 INFO L78 Accepts]: Start accepts. Automaton has 93543 states and 406523 transitions. Word has length 49 [2020-12-18 00:04:51,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:04:51,956 INFO L481 AbstractCegarLoop]: Abstraction has 93543 states and 406523 transitions. [2020-12-18 00:04:51,956 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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) [2020-12-18 00:04:51,956 INFO L276 IsEmpty]: Start isEmpty. Operand 93543 states and 406523 transitions. [2020-12-18 00:04:52,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-18 00:04:52,037 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:04:52,037 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] [2020-12-18 00:04:52,037 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-18 00:04:52,037 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:04:52,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:04:52,038 INFO L82 PathProgramCache]: Analyzing trace with hash -2026880935, now seen corresponding path program 1 times [2020-12-18 00:04:52,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:04:52,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345535901] [2020-12-18 00:04:52,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:04:52,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:04:52,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 00:04:52,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345535901] [2020-12-18 00:04:52,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:04:52,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-18 00:04:52,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856973306] [2020-12-18 00:04:52,245 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-18 00:04:52,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:04:52,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-18 00:04:52,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-18 00:04:52,249 INFO L87 Difference]: Start difference. First operand 93543 states and 406523 transitions. 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) [2020-12-18 00:04:53,125 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-12-18 00:04:54,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:04:54,983 INFO L93 Difference]: Finished difference Result 138623 states and 599247 transitions. [2020-12-18 00:04:54,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-18 00:04:54,983 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 [2020-12-18 00:04:54,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:04:54,985 INFO L763 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 [2020-12-18 00:04:54,985 INFO L78 Accepts]: Start accepts. Automaton has 138623 states and 599247 transitions. Word has length 51 [2020-12-18 00:04:54,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:04:54,987 INFO L481 AbstractCegarLoop]: Abstraction has 138623 states and 599247 transitions. [2020-12-18 00:04:54,987 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) [2020-12-18 00:04:54,987 INFO L276 IsEmpty]: Start isEmpty. Operand 138623 states and 599247 transitions. [2020-12-18 00:04:55,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-12-18 00:04:55,073 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:04:55,074 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] [2020-12-18 00:04:55,074 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-18 00:04:55,074 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:04:55,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:04:55,075 INFO L82 PathProgramCache]: Analyzing trace with hash 412575002, now seen corresponding path program 1 times [2020-12-18 00:04:55,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:04:55,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042973637] [2020-12-18 00:04:55,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:04:55,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:04:55,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 00:04:55,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042973637] [2020-12-18 00:04:55,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:04:55,271 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-18 00:04:55,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724637615] [2020-12-18 00:04:55,272 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-18 00:04:55,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:04:55,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-18 00:04:55,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-18 00:04:55,273 INFO L87 Difference]: Start difference. First operand 138623 states and 599247 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2020-12-18 00:04:58,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:04:58,184 INFO L93 Difference]: Finished difference Result 217863 states and 936639 transitions. [2020-12-18 00:04:58,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-18 00:04:58,185 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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 53 [2020-12-18 00:04:58,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:04:58,186 INFO L763 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 [2020-12-18 00:04:58,186 INFO L78 Accepts]: Start accepts. Automaton has 217863 states and 936639 transitions. Word has length 53 [2020-12-18 00:04:58,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:04:58,187 INFO L481 AbstractCegarLoop]: Abstraction has 217863 states and 936639 transitions. [2020-12-18 00:04:58,187 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2020-12-18 00:04:58,188 INFO L276 IsEmpty]: Start isEmpty. Operand 217863 states and 936639 transitions. [2020-12-18 00:04:58,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-18 00:04:58,340 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:04:58,340 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] [2020-12-18 00:04:58,340 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-18 00:04:58,340 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:04:58,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:04:58,343 INFO L82 PathProgramCache]: Analyzing trace with hash -1445512613, now seen corresponding path program 1 times [2020-12-18 00:04:58,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:04:58,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297839445] [2020-12-18 00:04:58,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:04:58,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:04:58,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 00:04:58,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297839445] [2020-12-18 00:04:58,494 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:04:58,494 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-18 00:04:58,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752007157] [2020-12-18 00:04:58,495 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-18 00:04:58,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:04:58,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-18 00:04:58,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-18 00:04:58,496 INFO L87 Difference]: Start difference. First operand 217863 states and 936639 transitions. 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) [2020-12-18 00:05:02,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:05:02,477 INFO L93 Difference]: Finished difference Result 306203 states and 1305771 transitions. [2020-12-18 00:05:02,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-18 00:05:02,478 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 [2020-12-18 00:05:02,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:05:02,480 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-18 00:05:02,480 INFO L78 Accepts]: Start accepts. Automaton has 306203 states and 1305771 transitions. Word has length 55 [2020-12-18 00:05:02,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:05:02,482 INFO L481 AbstractCegarLoop]: Abstraction has 306203 states and 1305771 transitions. [2020-12-18 00:05:02,482 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) [2020-12-18 00:05:02,482 INFO L276 IsEmpty]: Start isEmpty. Operand 306203 states and 1305771 transitions. [2020-12-18 00:05:02,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-12-18 00:05:02,752 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:05:02,752 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] [2020-12-18 00:05:02,753 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-18 00:05:02,753 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:05:02,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:05:02,754 INFO L82 PathProgramCache]: Analyzing trace with hash 347828795, now seen corresponding path program 1 times [2020-12-18 00:05:02,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:05:02,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287482855] [2020-12-18 00:05:02,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:05:02,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:05:03,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 00:05:03,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287482855] [2020-12-18 00:05:03,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:05:03,560 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-18 00:05:03,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186346335] [2020-12-18 00:05:03,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-18 00:05:03,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:05:03,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-18 00:05:03,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-18 00:05:03,569 INFO L87 Difference]: Start difference. First operand 306203 states and 1305771 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 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) [2020-12-18 00:05:08,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:05:08,960 INFO L93 Difference]: Finished difference Result 446603 states and 1884991 transitions. [2020-12-18 00:05:08,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-18 00:05:08,961 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 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 [2020-12-18 00:05:08,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:05:08,962 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-18 00:05:08,962 INFO L78 Accepts]: Start accepts. Automaton has 446603 states and 1884991 transitions. Word has length 56 [2020-12-18 00:05:08,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:05:08,962 INFO L481 AbstractCegarLoop]: Abstraction has 446603 states and 1884991 transitions. [2020-12-18 00:05:08,963 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 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) [2020-12-18 00:05:08,963 INFO L276 IsEmpty]: Start isEmpty. Operand 446603 states and 1884991 transitions. [2020-12-18 00:05:09,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-12-18 00:05:09,402 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:05:09,402 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] [2020-12-18 00:05:09,402 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-18 00:05:09,403 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:05:09,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:05:09,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1018607020, now seen corresponding path program 1 times [2020-12-18 00:05:09,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:05:09,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800660199] [2020-12-18 00:05:09,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:05:09,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:05:09,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 00:05:09,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800660199] [2020-12-18 00:05:09,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:05:09,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-18 00:05:09,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136607745] [2020-12-18 00:05:09,593 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-18 00:05:09,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:05:09,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-18 00:05:09,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-18 00:05:09,595 INFO L87 Difference]: Start difference. First operand 446603 states and 1884991 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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) [2020-12-18 00:05:19,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:05:19,159 INFO L93 Difference]: Finished difference Result 752363 states and 3141239 transitions. [2020-12-18 00:05:19,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-18 00:05:19,160 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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 59 [2020-12-18 00:05:19,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:05:19,161 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-18 00:05:19,161 INFO L78 Accepts]: Start accepts. Automaton has 752363 states and 3141239 transitions. Word has length 59 [2020-12-18 00:05:19,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:05:19,161 INFO L481 AbstractCegarLoop]: Abstraction has 752363 states and 3141239 transitions. [2020-12-18 00:05:19,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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) [2020-12-18 00:05:19,162 INFO L276 IsEmpty]: Start isEmpty. Operand 752363 states and 3141239 transitions. [2020-12-18 00:05:20,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-12-18 00:05:20,011 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:05:20,011 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] [2020-12-18 00:05:20,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-18 00:05:20,012 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:05:20,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:05:20,012 INFO L82 PathProgramCache]: Analyzing trace with hash 792710772, now seen corresponding path program 1 times [2020-12-18 00:05:20,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:05:20,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264523714] [2020-12-18 00:05:20,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:05:20,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:05:20,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 00:05:20,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264523714] [2020-12-18 00:05:20,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:05:20,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-18 00:05:20,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163232180] [2020-12-18 00:05:20,199 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-18 00:05:20,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:05:20,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-18 00:05:20,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-18 00:05:20,201 INFO L87 Difference]: Start difference. First operand 752363 states and 3141239 transitions. 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) [2020-12-18 00:05:21,380 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 12 [2020-12-18 00:05:34,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:05:34,206 INFO L93 Difference]: Finished difference Result 1071563 states and 4443759 transitions. [2020-12-18 00:05:34,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-18 00:05:34,212 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 [2020-12-18 00:05:34,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:05:34,213 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-18 00:05:34,213 INFO L78 Accepts]: Start accepts. Automaton has 1071563 states and 4443759 transitions. Word has length 60 [2020-12-18 00:05:34,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:05:34,213 INFO L481 AbstractCegarLoop]: Abstraction has 1071563 states and 4443759 transitions. [2020-12-18 00:05:34,214 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) [2020-12-18 00:05:34,214 INFO L276 IsEmpty]: Start isEmpty. Operand 1071563 states and 4443759 transitions. [2020-12-18 00:05:40,077 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-18 00:05:40,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-18 00:05:40,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 12:05:40 BasicIcfg [2020-12-18 00:05:40,087 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-18 00:05:40,089 INFO L168 Benchmark]: Toolchain (without parser) took 66096.25 ms. Allocated memory was 302.0 MB in the beginning and 15.4 GB in the end (delta: 15.1 GB). Free memory was 277.1 MB in the beginning and 7.1 GB in the end (delta: -6.8 GB). Peak memory consumption was 8.4 GB. Max. memory is 16.0 GB. [2020-12-18 00:05:40,090 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 302.0 MB. Free memory is still 272.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-12-18 00:05:40,091 INFO L168 Benchmark]: CACSL2BoogieTranslator took 654.22 ms. Allocated memory is still 302.0 MB. Free memory was 276.9 MB in the beginning and 245.7 MB in the end (delta: 31.2 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2020-12-18 00:05:40,098 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.46 ms. Allocated memory is still 302.0 MB. Free memory was 245.5 MB in the beginning and 283.3 MB in the end (delta: -37.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.0 GB. [2020-12-18 00:05:40,098 INFO L168 Benchmark]: Boogie Preprocessor took 30.75 ms. Allocated memory is still 302.0 MB. Free memory was 283.3 MB in the beginning and 282.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-12-18 00:05:40,099 INFO L168 Benchmark]: RCFGBuilder took 693.60 ms. Allocated memory is still 302.0 MB. Free memory was 282.2 MB in the beginning and 257.1 MB in the end (delta: 25.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2020-12-18 00:05:40,100 INFO L168 Benchmark]: TraceAbstraction took 64609.83 ms. Allocated memory was 302.0 MB in the beginning and 15.4 GB in the end (delta: 15.1 GB). Free memory was 257.1 MB in the beginning and 7.1 GB in the end (delta: -6.8 GB). Peak memory consumption was 8.4 GB. Max. memory is 16.0 GB. [2020-12-18 00:05:40,107 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 302.0 MB. Free memory is still 272.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 654.22 ms. Allocated memory is still 302.0 MB. Free memory was 276.9 MB in the beginning and 245.7 MB in the end (delta: 31.2 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 95.46 ms. Allocated memory is still 302.0 MB. Free memory was 245.5 MB in the beginning and 283.3 MB in the end (delta: -37.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 30.75 ms. Allocated memory is still 302.0 MB. Free memory was 283.3 MB in the beginning and 282.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 693.60 ms. Allocated memory is still 302.0 MB. Free memory was 282.2 MB in the beginning and 257.1 MB in the end (delta: 25.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 64609.83 ms. Allocated memory was 302.0 MB in the beginning and 15.4 GB in the end (delta: 15.1 GB). Free memory was 257.1 MB in the beginning and 7.1 GB in the end (delta: -6.8 GB). Peak memory consumption was 8.4 GB. 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, 93 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 64.4s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 40.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 13.6s, HoareTripleCheckerStatistics: 1058 SDtfs, 2428 SDslu, 3631 SDs, 0 SdLazy, 255 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1071563occurred in iteration=7, 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, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 383 NumberOfCodeBlocks, 383 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 376 ConstructedInterpolants, 0 QuantifiedInterpolants, 58156 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...