/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin000_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 17:15:06,862 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 17:15:06,865 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 17:15:06,907 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 17:15:06,907 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 17:15:06,909 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 17:15:06,911 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 17:15:06,913 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 17:15:06,915 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 17:15:06,916 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 17:15:06,918 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 17:15:06,919 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 17:15:06,920 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 17:15:06,921 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 17:15:06,922 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 17:15:06,924 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 17:15:06,925 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 17:15:06,926 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 17:15:06,938 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 17:15:06,946 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 17:15:06,949 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 17:15:06,952 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 17:15:06,953 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 17:15:06,954 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 17:15:06,958 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-09 17:15:06,958 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-09 17:15:06,958 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-09 17:15:06,959 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-09 17:15:06,964 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-09 17:15:06,965 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-09 17:15:06,965 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 17:15:06,966 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 17:15:06,967 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 17:15:06,968 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 17:15:06,969 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 17:15:06,970 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 17:15:06,971 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 17:15:06,971 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 17:15:06,971 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 17:15:06,972 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 17:15:06,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 17:15:06,977 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf [2020-11-09 17:15:07,030 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 17:15:07,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 17:15:07,034 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 17:15:07,035 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 17:15:07,036 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 17:15:07,036 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 17:15:07,036 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 17:15:07,036 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 17:15:07,036 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 17:15:07,037 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 17:15:07,037 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 17:15:07,038 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 17:15:07,038 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 17:15:07,038 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 17:15:07,039 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 17:15:07,039 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 17:15:07,039 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 17:15:07,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 17:15:07,039 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 17:15:07,041 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 17:15:07,042 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 17:15:07,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:15:07,042 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 17:15:07,042 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 17:15:07,042 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 17:15:07,043 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 17:15:07,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 17:15:07,045 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 17:15:07,045 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 17:15:07,045 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 17:15:07,046 INFO L138 SettingsManager]: * Interpolant automaton=MCR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 17:15:07,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 17:15:07,492 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 17:15:07,496 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 17:15:07,497 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 17:15:07,498 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 17:15:07,498 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin000_tso.oepc.i [2020-11-09 17:15:07,571 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39132ddc6/48f3d01cc0644f62bcca960f7208182a/FLAG6b69ef1cb [2020-11-09 17:15:08,217 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 17:15:08,217 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin000_tso.oepc.i [2020-11-09 17:15:08,244 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39132ddc6/48f3d01cc0644f62bcca960f7208182a/FLAG6b69ef1cb [2020-11-09 17:15:08,468 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39132ddc6/48f3d01cc0644f62bcca960f7208182a [2020-11-09 17:15:08,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 17:15:08,481 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 17:15:08,484 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 17:15:08,484 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 17:15:08,488 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 17:15:08,490 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:15:08" (1/1) ... [2020-11-09 17:15:08,499 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c4669e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:08, skipping insertion in model container [2020-11-09 17:15:08,499 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:15:08" (1/1) ... [2020-11-09 17:15:08,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 17:15:08,585 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 17:15:09,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:15:09,063 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 17:15:09,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:15:09,321 INFO L208 MainTranslator]: Completed translation [2020-11-09 17:15:09,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:09 WrapperNode [2020-11-09 17:15:09,322 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 17:15:09,337 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 17:15:09,337 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 17:15:09,337 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 17:15:09,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:09" (1/1) ... [2020-11-09 17:15:09,393 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:09" (1/1) ... [2020-11-09 17:15:09,423 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 17:15:09,425 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 17:15:09,425 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 17:15:09,425 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 17:15:09,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:09" (1/1) ... [2020-11-09 17:15:09,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:09" (1/1) ... [2020-11-09 17:15:09,442 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:09" (1/1) ... [2020-11-09 17:15:09,442 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:09" (1/1) ... [2020-11-09 17:15:09,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:09" (1/1) ... [2020-11-09 17:15:09,465 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:09" (1/1) ... [2020-11-09 17:15:09,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:09" (1/1) ... [2020-11-09 17:15:09,480 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 17:15:09,481 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 17:15:09,481 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 17:15:09,481 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 17:15:09,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:15:09,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 17:15:09,566 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 17:15:09,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 17:15:09,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 17:15:09,568 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 17:15:09,568 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 17:15:09,569 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 17:15:09,569 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 17:15:09,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 17:15:09,570 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 17:15:09,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 17:15:09,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 17:15:09,572 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 17:15:09,907 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 17:15:09,908 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 17:15:09,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:15:09 BoogieIcfgContainer [2020-11-09 17:15:09,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 17:15:09,912 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 17:15:09,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 17:15:09,915 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 17:15:09,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:15:08" (1/3) ... [2020-11-09 17:15:09,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ac9f395 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:15:09, skipping insertion in model container [2020-11-09 17:15:09,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:09" (2/3) ... [2020-11-09 17:15:09,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ac9f395 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:15:09, skipping insertion in model container [2020-11-09 17:15:09,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:15:09" (3/3) ... [2020-11-09 17:15:09,918 INFO L111 eAbstractionObserver]: Analyzing ICFG thin000_tso.oepc.i [2020-11-09 17:15:09,933 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 17:15:09,934 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 17:15:09,937 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 17:15:09,938 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 17:15:09,964 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:15:09,965 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:15:09,965 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:15:09,965 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:15:09,966 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:15:09,966 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:15:09,966 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:15:09,966 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:15:09,967 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:15:09,967 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:15:09,967 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:15:09,967 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:15:09,968 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:15:09,968 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:15:09,968 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:15:09,968 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:15:09,968 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:15:09,969 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:15:09,969 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:15:09,969 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:15:09,969 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:15:09,970 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:15:09,970 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:15:09,970 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:15:09,972 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:15:09,973 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:15:09,973 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:15:09,973 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:15:09,980 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:15:09,980 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:15:09,980 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:15:09,981 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:15:09,985 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 17:15:09,996 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-09 17:15:10,018 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 17:15:10,019 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 17:15:10,019 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 17:15:10,019 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 17:15:10,019 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 17:15:10,019 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 17:15:10,019 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 17:15:10,020 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 17:15:10,031 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 17:15:10,032 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 65 transitions, 140 flow [2020-11-09 17:15:10,035 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 65 transitions, 140 flow [2020-11-09 17:15:10,037 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 65 transitions, 140 flow [2020-11-09 17:15:10,081 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2020-11-09 17:15:10,081 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 17:15:10,085 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 63 events. 3/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2020-11-09 17:15:10,088 INFO L116 LiptonReduction]: Number of co-enabled transitions 792 [2020-11-09 17:15:12,225 WARN L194 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-11-09 17:15:12,735 WARN L194 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-11-09 17:15:12,938 WARN L194 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-11-09 17:15:13,355 WARN L194 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-11-09 17:15:13,481 WARN L194 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-09 17:15:13,734 WARN L194 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-11-09 17:15:13,845 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-09 17:15:13,902 INFO L131 LiptonReduction]: Checked pairs total: 1892 [2020-11-09 17:15:13,902 INFO L133 LiptonReduction]: Total number of compositions: 66 [2020-11-09 17:15:13,909 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 17 transitions, 44 flow [2020-11-09 17:15:13,922 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 90 states. [2020-11-09 17:15:13,924 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2020-11-09 17:15:13,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-09 17:15:13,930 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:15:13,930 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-09 17:15:13,931 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:15:13,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:15:13,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1281927427, now seen corresponding path program 1 times [2020-11-09 17:15:13,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:15:13,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526138841] [2020-11-09 17:15:13,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:15:14,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:15:14,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:15:14,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526138841] [2020-11-09 17:15:14,130 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:15:14,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:15:14,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1117382784] [2020-11-09 17:15:14,132 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:15:14,135 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:15:14,147 INFO L252 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-11-09 17:15:14,147 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:15:14,151 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:15:14,152 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-09 17:15:14,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:15:14,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-09 17:15:14,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 17:15:14,169 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2020-11-09 17:15:14,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:15:14,179 INFO L93 Difference]: Finished difference Result 90 states and 200 transitions. [2020-11-09 17:15:14,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-09 17:15:14,180 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-11-09 17:15:14,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:15:14,189 INFO L225 Difference]: With dead ends: 90 [2020-11-09 17:15:14,189 INFO L226 Difference]: Without dead ends: 74 [2020-11-09 17:15:14,191 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 17:15:14,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-11-09 17:15:14,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-11-09 17:15:14,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-11-09 17:15:14,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 160 transitions. [2020-11-09 17:15:14,235 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 160 transitions. Word has length 6 [2020-11-09 17:15:14,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:15:14,235 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 160 transitions. [2020-11-09 17:15:14,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-09 17:15:14,236 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 160 transitions. [2020-11-09 17:15:14,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-09 17:15:14,236 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:15:14,237 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:15:14,237 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 17:15:14,237 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:15:14,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:15:14,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1085050971, now seen corresponding path program 1 times [2020-11-09 17:15:14,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:15:14,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825733413] [2020-11-09 17:15:14,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:15:14,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:15:14,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:15:14,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825733413] [2020-11-09 17:15:14,417 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:15:14,417 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:15:14,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1751560366] [2020-11-09 17:15:14,418 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:15:14,419 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:15:14,420 INFO L252 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-11-09 17:15:14,421 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:15:14,421 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:15:14,422 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:15:14,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:15:14,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:15:14,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:15:14,424 INFO L87 Difference]: Start difference. First operand 74 states and 160 transitions. Second operand 4 states. [2020-11-09 17:15:14,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:15:14,459 INFO L93 Difference]: Finished difference Result 82 states and 166 transitions. [2020-11-09 17:15:14,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:15:14,459 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-09 17:15:14,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:15:14,461 INFO L225 Difference]: With dead ends: 82 [2020-11-09 17:15:14,461 INFO L226 Difference]: Without dead ends: 66 [2020-11-09 17:15:14,462 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:15:14,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-11-09 17:15:14,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-11-09 17:15:14,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-11-09 17:15:14,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 138 transitions. [2020-11-09 17:15:14,472 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 138 transitions. Word has length 7 [2020-11-09 17:15:14,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:15:14,472 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 138 transitions. [2020-11-09 17:15:14,472 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:15:14,473 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 138 transitions. [2020-11-09 17:15:14,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 17:15:14,473 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:15:14,474 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:15:14,474 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 17:15:14,474 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:15:14,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:15:14,475 INFO L82 PathProgramCache]: Analyzing trace with hash 722349434, now seen corresponding path program 1 times [2020-11-09 17:15:14,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:15:14,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008356019] [2020-11-09 17:15:14,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:15:14,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:15:14,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:15:14,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008356019] [2020-11-09 17:15:14,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:15:14,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:15:14,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [491603641] [2020-11-09 17:15:14,549 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:15:14,550 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:15:14,552 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 10 transitions. [2020-11-09 17:15:14,552 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:15:14,570 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:15:14,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:15:14,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:15:14,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:15:14,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:15:14,572 INFO L87 Difference]: Start difference. First operand 66 states and 138 transitions. Second operand 5 states. [2020-11-09 17:15:14,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:15:14,631 INFO L93 Difference]: Finished difference Result 78 states and 155 transitions. [2020-11-09 17:15:14,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 17:15:14,632 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-11-09 17:15:14,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:15:14,633 INFO L225 Difference]: With dead ends: 78 [2020-11-09 17:15:14,633 INFO L226 Difference]: Without dead ends: 42 [2020-11-09 17:15:14,633 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-09 17:15:14,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-11-09 17:15:14,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-11-09 17:15:14,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-11-09 17:15:14,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 76 transitions. [2020-11-09 17:15:14,639 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 76 transitions. Word has length 8 [2020-11-09 17:15:14,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:15:14,639 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 76 transitions. [2020-11-09 17:15:14,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:15:14,640 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 76 transitions. [2020-11-09 17:15:14,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 17:15:14,640 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:15:14,641 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:15:14,641 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 17:15:14,641 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:15:14,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:15:14,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1631439828, now seen corresponding path program 1 times [2020-11-09 17:15:14,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:15:14,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639032726] [2020-11-09 17:15:14,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:15:14,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:15:14,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:15:14,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639032726] [2020-11-09 17:15:14,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:15:14,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:15:14,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1103020456] [2020-11-09 17:15:14,709 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:15:14,710 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:15:14,713 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 24 transitions. [2020-11-09 17:15:14,713 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:15:14,737 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:15:14,737 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:15:14,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:15:14,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:15:14,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:15:14,738 INFO L87 Difference]: Start difference. First operand 42 states and 76 transitions. Second operand 5 states. [2020-11-09 17:15:14,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:15:14,785 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2020-11-09 17:15:14,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 17:15:14,785 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-11-09 17:15:14,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:15:14,786 INFO L225 Difference]: With dead ends: 36 [2020-11-09 17:15:14,786 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 17:15:14,786 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-09 17:15:14,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 17:15:14,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 17:15:14,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 17:15:14,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 17:15:14,787 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-11-09 17:15:14,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:15:14,788 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 17:15:14,788 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:15:14,788 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 17:15:14,788 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 17:15:14,788 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 17:15:14,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:15:14 BasicIcfg [2020-11-09 17:15:14,792 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 17:15:14,794 INFO L168 Benchmark]: Toolchain (without parser) took 6319.07 ms. Allocated memory was 154.1 MB in the beginning and 199.2 MB in the end (delta: 45.1 MB). Free memory was 128.2 MB in the beginning and 97.4 MB in the end (delta: 30.8 MB). Peak memory consumption was 77.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:15:14,795 INFO L168 Benchmark]: CDTParser took 0.68 ms. Allocated memory is still 154.1 MB. Free memory is still 126.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 17:15:14,795 INFO L168 Benchmark]: CACSL2BoogieTranslator took 838.81 ms. Allocated memory is still 154.1 MB. Free memory was 127.5 MB in the beginning and 135.1 MB in the end (delta: -7.6 MB). Peak memory consumption was 33.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:15:14,796 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.97 ms. Allocated memory is still 154.1 MB. Free memory was 135.1 MB in the beginning and 133.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:15:14,797 INFO L168 Benchmark]: Boogie Preprocessor took 55.25 ms. Allocated memory is still 154.1 MB. Free memory was 133.0 MB in the beginning and 132.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:15:14,798 INFO L168 Benchmark]: RCFGBuilder took 428.84 ms. Allocated memory is still 154.1 MB. Free memory was 132.0 MB in the beginning and 112.0 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-11-09 17:15:14,799 INFO L168 Benchmark]: TraceAbstraction took 4880.57 ms. Allocated memory was 154.1 MB in the beginning and 199.2 MB in the end (delta: 45.1 MB). Free memory was 111.5 MB in the beginning and 97.4 MB in the end (delta: 14.2 MB). Peak memory consumption was 60.8 MB. Max. memory is 8.0 GB. [2020-11-09 17:15:14,803 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68 ms. Allocated memory is still 154.1 MB. Free memory is still 126.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 838.81 ms. Allocated memory is still 154.1 MB. Free memory was 127.5 MB in the beginning and 135.1 MB in the end (delta: -7.6 MB). Peak memory consumption was 33.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 86.97 ms. Allocated memory is still 154.1 MB. Free memory was 135.1 MB in the beginning and 133.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 55.25 ms. Allocated memory is still 154.1 MB. Free memory was 133.0 MB in the beginning and 132.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 428.84 ms. Allocated memory is still 154.1 MB. Free memory was 132.0 MB in the beginning and 112.0 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4880.57 ms. Allocated memory was 154.1 MB in the beginning and 199.2 MB in the end (delta: 45.1 MB). Free memory was 111.5 MB in the beginning and 97.4 MB in the end (delta: 14.2 MB). Peak memory consumption was 60.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 451 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 23 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.8s, 69 PlacesBefore, 23 PlacesAfterwards, 65 TransitionsBefore, 17 TransitionsAfterwards, 792 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 2 ChoiceCompositions, 66 TotalNumberOfCompositions, 1892 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 61 SDtfs, 53 SDslu, 66 SDs, 0 SdLazy, 23 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 655 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...