./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-pthread/cs_stateful-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-pthread/cs_stateful-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8ecae2ca1de1e5b446d807037ed0cb2d4fc04c355acb35a6870f18f7e175f10e --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 12:20:27,900 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 12:20:27,902 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 12:20:27,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 12:20:27,941 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 12:20:27,943 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 12:20:27,944 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 12:20:27,946 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 12:20:27,947 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 12:20:27,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 12:20:27,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 12:20:27,952 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 12:20:27,952 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 12:20:27,954 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 12:20:27,955 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 12:20:27,956 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 12:20:27,957 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 12:20:27,957 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 12:20:27,960 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 12:20:27,964 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 12:20:27,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 12:20:27,965 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 12:20:27,966 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 12:20:27,967 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 12:20:27,971 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 12:20:27,971 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 12:20:27,972 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 12:20:27,973 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 12:20:27,973 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 12:20:27,973 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 12:20:27,974 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 12:20:27,974 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 12:20:27,975 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 12:20:27,976 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 12:20:27,977 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 12:20:27,977 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 12:20:27,978 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 12:20:27,978 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 12:20:27,978 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 12:20:27,978 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 12:20:27,979 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 12:20:27,980 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-22 12:20:28,007 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 12:20:28,007 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 12:20:28,008 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 12:20:28,008 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 12:20:28,008 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 12:20:28,009 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 12:20:28,009 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 12:20:28,009 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 12:20:28,009 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 12:20:28,009 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 12:20:28,010 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 12:20:28,010 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 12:20:28,010 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 12:20:28,011 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 12:20:28,011 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 12:20:28,011 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 12:20:28,011 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 12:20:28,011 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 12:20:28,011 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 12:20:28,011 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 12:20:28,012 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 12:20:28,012 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 12:20:28,012 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 12:20:28,012 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 12:20:28,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 12:20:28,012 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 12:20:28,012 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 12:20:28,013 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 12:20:28,013 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 12:20:28,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 12:20:28,013 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 12:20:28,013 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 12:20:28,013 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 12:20:28,014 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 12:20:28,014 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ecae2ca1de1e5b446d807037ed0cb2d4fc04c355acb35a6870f18f7e175f10e [2021-12-22 12:20:28,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 12:20:28,226 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 12:20:28,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 12:20:28,229 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 12:20:28,229 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 12:20:28,230 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-pthread/cs_stateful-1.i [2021-12-22 12:20:28,272 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cfe00b54/003ae576cbf048fa983675cdb7126508/FLAGb473d2fa7 [2021-12-22 12:20:28,671 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 12:20:28,671 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_stateful-1.i [2021-12-22 12:20:28,693 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cfe00b54/003ae576cbf048fa983675cdb7126508/FLAGb473d2fa7 [2021-12-22 12:20:29,038 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cfe00b54/003ae576cbf048fa983675cdb7126508 [2021-12-22 12:20:29,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 12:20:29,042 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 12:20:29,044 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 12:20:29,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 12:20:29,047 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 12:20:29,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:20:29" (1/1) ... [2021-12-22 12:20:29,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19337500 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:20:29, skipping insertion in model container [2021-12-22 12:20:29,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:20:29" (1/1) ... [2021-12-22 12:20:29,053 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 12:20:29,086 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 12:20:29,312 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_stateful-1.i[23400,23413] [2021-12-22 12:20:29,395 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 12:20:29,402 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 12:20:29,433 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_stateful-1.i[23400,23413] [2021-12-22 12:20:29,479 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 12:20:29,508 INFO L208 MainTranslator]: Completed translation [2021-12-22 12:20:29,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:20:29 WrapperNode [2021-12-22 12:20:29,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 12:20:29,509 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 12:20:29,510 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 12:20:29,510 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 12:20:29,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:20:29" (1/1) ... [2021-12-22 12:20:29,546 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:20:29" (1/1) ... [2021-12-22 12:20:29,582 INFO L137 Inliner]: procedures = 144, calls = 231, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 563 [2021-12-22 12:20:29,583 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 12:20:29,584 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 12:20:29,584 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 12:20:29,584 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 12:20:29,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:20:29" (1/1) ... [2021-12-22 12:20:29,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:20:29" (1/1) ... [2021-12-22 12:20:29,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:20:29" (1/1) ... [2021-12-22 12:20:29,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:20:29" (1/1) ... [2021-12-22 12:20:29,607 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:20:29" (1/1) ... [2021-12-22 12:20:29,611 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:20:29" (1/1) ... [2021-12-22 12:20:29,613 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:20:29" (1/1) ... [2021-12-22 12:20:29,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 12:20:29,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 12:20:29,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 12:20:29,617 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 12:20:29,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:20:29" (1/1) ... [2021-12-22 12:20:29,622 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 12:20:29,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 12:20:29,646 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 12:20:29,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 12:20:29,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 12:20:29,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 12:20:29,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 12:20:29,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 12:20:29,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 12:20:29,673 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_init [2021-12-22 12:20:29,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_init [2021-12-22 12:20:29,674 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_lock [2021-12-22 12:20:29,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_lock [2021-12-22 12:20:29,674 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2021-12-22 12:20:29,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2021-12-22 12:20:29,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 12:20:29,675 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2021-12-22 12:20:29,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2021-12-22 12:20:29,675 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2021-12-22 12:20:29,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2021-12-22 12:20:29,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 12:20:29,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 12:20:29,675 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2021-12-22 12:20:29,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2021-12-22 12:20:29,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 12:20:29,676 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_unlock [2021-12-22 12:20:29,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_unlock [2021-12-22 12:20:29,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 12:20:29,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 12:20:29,869 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 12:20:29,871 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 12:20:30,148 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L746: SUMMARY for call __CS_cs(); srcloc: null [2021-12-22 12:20:30,149 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L746-1: assume 0 != ~__CS_ret~0 % 256;main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset);havoc main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset);havoc main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset; [2021-12-22 12:20:30,149 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L746-1: assume !(0 != ~__CS_ret~0 % 256); [2021-12-22 12:20:30,149 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##31: assume !(0 != ~__CS_ret~0 % 256); [2021-12-22 12:20:30,149 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume 0 != ~__CS_ret~0 % 256;main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset);havoc main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset);havoc main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset; [2021-12-22 12:20:30,149 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume !(0 != ~__CS_ret~0 % 256); [2021-12-22 12:20:30,149 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##28: assume 0 != ~__CS_ret~0 % 256;main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset);havoc main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset);havoc main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset; [2021-12-22 12:20:32,435 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 12:20:32,440 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 12:20:32,441 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-22 12:20:32,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:20:32 BoogieIcfgContainer [2021-12-22 12:20:32,443 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 12:20:32,444 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 12:20:32,444 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 12:20:32,447 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 12:20:32,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 12:20:29" (1/3) ... [2021-12-22 12:20:32,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33a198c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:20:32, skipping insertion in model container [2021-12-22 12:20:32,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:20:29" (2/3) ... [2021-12-22 12:20:32,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33a198c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:20:32, skipping insertion in model container [2021-12-22 12:20:32,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:20:32" (3/3) ... [2021-12-22 12:20:32,449 INFO L111 eAbstractionObserver]: Analyzing ICFG cs_stateful-1.i [2021-12-22 12:20:32,452 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 12:20:32,452 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 12:20:32,481 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 12:20:32,485 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 12:20:32,485 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 12:20:32,497 INFO L276 IsEmpty]: Start isEmpty. Operand has 172 states, 121 states have (on average 1.5041322314049588) internal successors, (182), 122 states have internal predecessors, (182), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2021-12-22 12:20:32,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-22 12:20:32,503 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:20:32,504 INFO L514 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] [2021-12-22 12:20:32,504 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 12:20:32,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:20:32,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1724368089, now seen corresponding path program 1 times [2021-12-22 12:20:32,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:20:32,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988565214] [2021-12-22 12:20:32,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:20:32,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:20:32,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:20:32,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:20:32,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:20:32,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988565214] [2021-12-22 12:20:32,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988565214] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:20:32,867 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:20:32,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 12:20:32,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495542575] [2021-12-22 12:20:32,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:20:32,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 12:20:32,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:20:32,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 12:20:32,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 12:20:32,897 INFO L87 Difference]: Start difference. First operand has 172 states, 121 states have (on average 1.5041322314049588) internal successors, (182), 122 states have internal predecessors, (182), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:20:32,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:20:32,990 INFO L93 Difference]: Finished difference Result 347 states and 569 transitions. [2021-12-22 12:20:32,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 12:20:32,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 32 [2021-12-22 12:20:32,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:20:33,003 INFO L225 Difference]: With dead ends: 347 [2021-12-22 12:20:33,003 INFO L226 Difference]: Without dead ends: 173 [2021-12-22 12:20:33,010 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 12:20:33,013 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 5 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 12:20:33,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 492 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 12:20:33,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-12-22 12:20:33,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 169. [2021-12-22 12:20:33,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 119 states have (on average 1.3781512605042017) internal successors, (164), 119 states have internal predecessors, (164), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2021-12-22 12:20:33,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 248 transitions. [2021-12-22 12:20:33,070 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 248 transitions. Word has length 32 [2021-12-22 12:20:33,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:20:33,071 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 248 transitions. [2021-12-22 12:20:33,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:20:33,072 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 248 transitions. [2021-12-22 12:20:33,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-22 12:20:33,077 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:20:33,078 INFO L514 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] [2021-12-22 12:20:33,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 12:20:33,078 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 12:20:33,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:20:33,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1488698589, now seen corresponding path program 1 times [2021-12-22 12:20:33,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:20:33,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352413657] [2021-12-22 12:20:33,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:20:33,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:20:33,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:20:33,244 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:20:33,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:20:33,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352413657] [2021-12-22 12:20:33,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352413657] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:20:33,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:20:33,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 12:20:33,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583635919] [2021-12-22 12:20:33,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:20:33,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 12:20:33,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:20:33,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 12:20:33,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 12:20:33,251 INFO L87 Difference]: Start difference. First operand 169 states and 248 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:20:33,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:20:33,283 INFO L93 Difference]: Finished difference Result 337 states and 496 transitions. [2021-12-22 12:20:33,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 12:20:33,302 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 36 [2021-12-22 12:20:33,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:20:33,305 INFO L225 Difference]: With dead ends: 337 [2021-12-22 12:20:33,306 INFO L226 Difference]: Without dead ends: 171 [2021-12-22 12:20:33,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 12:20:33,309 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 1 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 12:20:33,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 487 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 12:20:33,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2021-12-22 12:20:33,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 170. [2021-12-22 12:20:33,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 120 states have (on average 1.375) internal successors, (165), 120 states have internal predecessors, (165), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2021-12-22 12:20:33,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 249 transitions. [2021-12-22 12:20:33,325 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 249 transitions. Word has length 36 [2021-12-22 12:20:33,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:20:33,325 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 249 transitions. [2021-12-22 12:20:33,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:20:33,326 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 249 transitions. [2021-12-22 12:20:33,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-12-22 12:20:33,328 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:20:33,328 INFO L514 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] [2021-12-22 12:20:33,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 12:20:33,328 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 12:20:33,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:20:33,329 INFO L85 PathProgramCache]: Analyzing trace with hash 967627515, now seen corresponding path program 1 times [2021-12-22 12:20:33,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:20:33,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569093542] [2021-12-22 12:20:33,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:20:33,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:20:33,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:20:33,484 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:20:33,485 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:20:33,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569093542] [2021-12-22 12:20:33,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569093542] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 12:20:33,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796132208] [2021-12-22 12:20:33,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:20:33,486 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 12:20:33,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 12:20:33,488 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 12:20:33,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-22 12:20:33,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:20:34,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 1701 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-22 12:20:34,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 12:20:34,101 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:20:34,102 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 12:20:34,187 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:20:34,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1796132208] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 12:20:34,188 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 12:20:34,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-12-22 12:20:34,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539428690] [2021-12-22 12:20:34,188 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 12:20:34,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 12:20:34,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:20:34,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 12:20:34,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-22 12:20:34,191 INFO L87 Difference]: Start difference. First operand 170 states and 249 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:20:34,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:20:34,225 INFO L93 Difference]: Finished difference Result 341 states and 501 transitions. [2021-12-22 12:20:34,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 12:20:34,227 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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 38 [2021-12-22 12:20:34,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:20:34,231 INFO L225 Difference]: With dead ends: 341 [2021-12-22 12:20:34,232 INFO L226 Difference]: Without dead ends: 174 [2021-12-22 12:20:34,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 73 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-22 12:20:34,234 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 3 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 971 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 12:20:34,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 971 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 12:20:34,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2021-12-22 12:20:34,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2021-12-22 12:20:34,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 124 states have (on average 1.3629032258064515) internal successors, (169), 124 states have internal predecessors, (169), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2021-12-22 12:20:34,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 253 transitions. [2021-12-22 12:20:34,244 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 253 transitions. Word has length 38 [2021-12-22 12:20:34,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:20:34,244 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 253 transitions. [2021-12-22 12:20:34,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:20:34,244 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 253 transitions. [2021-12-22 12:20:34,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-22 12:20:34,245 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:20:34,245 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:20:34,266 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-22 12:20:34,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 12:20:34,446 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 12:20:34,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:20:34,447 INFO L85 PathProgramCache]: Analyzing trace with hash -624054089, now seen corresponding path program 2 times [2021-12-22 12:20:34,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:20:34,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460495687] [2021-12-22 12:20:34,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:20:34,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:20:34,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:20:34,611 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-22 12:20:34,611 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:20:34,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460495687] [2021-12-22 12:20:34,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460495687] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 12:20:34,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995490703] [2021-12-22 12:20:34,612 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-22 12:20:34,612 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 12:20:34,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 12:20:34,613 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 12:20:34,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-22 12:20:35,406 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-22 12:20:35,406 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-22 12:20:35,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 1584 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-22 12:20:35,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 12:20:35,515 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-12-22 12:20:35,516 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 12:20:35,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1995490703] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:20:35,516 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 12:20:35,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-22 12:20:35,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881486298] [2021-12-22 12:20:35,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:20:35,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 12:20:35,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:20:35,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 12:20:35,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-22 12:20:35,521 INFO L87 Difference]: Start difference. First operand 174 states and 253 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:20:35,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:20:35,551 INFO L93 Difference]: Finished difference Result 332 states and 495 transitions. [2021-12-22 12:20:35,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 12:20:35,551 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 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 42 [2021-12-22 12:20:35,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:20:35,554 INFO L225 Difference]: With dead ends: 332 [2021-12-22 12:20:35,554 INFO L226 Difference]: Without dead ends: 306 [2021-12-22 12:20:35,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-22 12:20:35,555 INFO L933 BasicCegarLoop]: 349 mSDtfsCounter, 206 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 12:20:35,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 934 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 12:20:35,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2021-12-22 12:20:35,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 305. [2021-12-22 12:20:35,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 207 states have (on average 1.4106280193236715) internal successors, (292), 207 states have internal predecessors, (292), 83 states have call successors, (83), 14 states have call predecessors, (83), 14 states have return successors, (91), 83 states have call predecessors, (91), 83 states have call successors, (91) [2021-12-22 12:20:35,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 466 transitions. [2021-12-22 12:20:35,574 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 466 transitions. Word has length 42 [2021-12-22 12:20:35,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:20:35,574 INFO L470 AbstractCegarLoop]: Abstraction has 305 states and 466 transitions. [2021-12-22 12:20:35,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:20:35,574 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 466 transitions. [2021-12-22 12:20:35,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-22 12:20:35,576 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:20:35,576 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:20:35,600 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-22 12:20:35,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-12-22 12:20:35,796 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 12:20:35,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:20:35,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1759881955, now seen corresponding path program 1 times [2021-12-22 12:20:35,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:20:35,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680472596] [2021-12-22 12:20:35,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:20:35,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:20:35,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:20:35,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-22 12:20:35,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:20:35,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 12:20:35,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:20:35,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 12:20:35,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:20:35,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 12:20:35,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:20:35,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-22 12:20:35,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:20:36,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 12:20:36,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:20:36,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-22 12:20:36,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:20:36,008 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-12-22 12:20:36,009 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:20:36,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680472596] [2021-12-22 12:20:36,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680472596] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 12:20:36,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205144929] [2021-12-22 12:20:36,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:20:36,009 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 12:20:36,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 12:20:36,010 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 12:20:36,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-22 12:20:36,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:20:36,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 2039 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-22 12:20:36,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 12:20:36,854 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-12-22 12:20:36,854 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 12:20:37,023 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-12-22 12:20:37,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1205144929] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 12:20:37,024 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 12:20:37,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 9 [2021-12-22 12:20:37,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253842789] [2021-12-22 12:20:37,024 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 12:20:37,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 12:20:37,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:20:37,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 12:20:37,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-12-22 12:20:37,026 INFO L87 Difference]: Start difference. First operand 305 states and 466 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-22 12:20:39,088 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 12:20:41,098 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 12:20:43,117 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 12:20:45,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 12:20:45,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:20:45,626 INFO L93 Difference]: Finished difference Result 617 states and 950 transitions. [2021-12-22 12:20:45,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-22 12:20:45,626 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 100 [2021-12-22 12:20:45,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:20:45,630 INFO L225 Difference]: With dead ends: 617 [2021-12-22 12:20:45,630 INFO L226 Difference]: Without dead ends: 325 [2021-12-22 12:20:45,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 208 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-12-22 12:20:45,632 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 36 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 51 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2021-12-22 12:20:45,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 994 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 535 Invalid, 4 Unknown, 0 Unchecked, 8.5s Time] [2021-12-22 12:20:45,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2021-12-22 12:20:45,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 319. [2021-12-22 12:20:45,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 219 states have (on average 1.3926940639269407) internal successors, (305), 221 states have internal predecessors, (305), 83 states have call successors, (83), 14 states have call predecessors, (83), 16 states have return successors, (97), 83 states have call predecessors, (97), 83 states have call successors, (97) [2021-12-22 12:20:45,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 485 transitions. [2021-12-22 12:20:45,650 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 485 transitions. Word has length 100 [2021-12-22 12:20:45,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:20:45,650 INFO L470 AbstractCegarLoop]: Abstraction has 319 states and 485 transitions. [2021-12-22 12:20:45,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-22 12:20:45,650 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 485 transitions. [2021-12-22 12:20:45,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-22 12:20:45,652 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:20:45,652 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:20:45,676 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-22 12:20:45,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 12:20:45,872 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 12:20:45,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:20:45,872 INFO L85 PathProgramCache]: Analyzing trace with hash -420954683, now seen corresponding path program 2 times [2021-12-22 12:20:45,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:20:45,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643182362] [2021-12-22 12:20:45,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:20:45,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:20:46,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:20:46,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-22 12:20:46,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:20:46,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 12:20:46,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:20:46,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 12:20:46,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:20:46,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 12:20:46,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:20:46,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-22 12:20:46,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:20:46,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 12:20:46,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:20:46,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-22 12:20:46,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:20:46,259 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-12-22 12:20:46,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:20:46,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643182362] [2021-12-22 12:20:46,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643182362] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:20:46,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:20:46,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 12:20:46,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090378882] [2021-12-22 12:20:46,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:20:46,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-22 12:20:46,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:20:46,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-22 12:20:46,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-22 12:20:46,265 INFO L87 Difference]: Start difference. First operand 319 states and 485 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-22 12:20:48,295 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 12:20:49,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:20:49,232 INFO L93 Difference]: Finished difference Result 662 states and 1021 transitions. [2021-12-22 12:20:49,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-22 12:20:49,233 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 110 [2021-12-22 12:20:49,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:20:49,241 INFO L225 Difference]: With dead ends: 662 [2021-12-22 12:20:49,242 INFO L226 Difference]: Without dead ends: 636 [2021-12-22 12:20:49,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-12-22 12:20:49,246 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 313 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 167 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 949 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-12-22 12:20:49,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 949 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 657 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2021-12-22 12:20:49,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2021-12-22 12:20:49,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 595. [2021-12-22 12:20:49,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 394 states have (on average 1.4238578680203047) internal successors, (561), 401 states have internal predecessors, (561), 165 states have call successors, (165), 28 states have call predecessors, (165), 35 states have return successors, (209), 165 states have call predecessors, (209), 165 states have call successors, (209) [2021-12-22 12:20:49,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 935 transitions. [2021-12-22 12:20:49,294 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 935 transitions. Word has length 110 [2021-12-22 12:20:49,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:20:49,295 INFO L470 AbstractCegarLoop]: Abstraction has 595 states and 935 transitions. [2021-12-22 12:20:49,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-22 12:20:49,296 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 935 transitions. [2021-12-22 12:20:49,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-22 12:20:49,298 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:20:49,298 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:20:49,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-22 12:20:49,298 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 12:20:49,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:20:49,299 INFO L85 PathProgramCache]: Analyzing trace with hash -593993191, now seen corresponding path program 1 times [2021-12-22 12:20:49,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:20:49,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138392626] [2021-12-22 12:20:49,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:20:49,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:20:58,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:20:58,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-22 12:20:58,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:20:58,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 12:20:58,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:20:58,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 12:20:58,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:20:58,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 12:20:58,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:20:58,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-22 12:20:58,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:20:58,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 12:20:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:20:58,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-22 12:20:58,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:20:58,833 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-12-22 12:20:58,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:20:58,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138392626] [2021-12-22 12:20:58,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138392626] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 12:20:58,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755429777] [2021-12-22 12:20:58,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:20:58,834 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 12:20:58,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 12:20:58,835 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 12:20:58,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-22 12:20:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:20:59,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 2211 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-22 12:20:59,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 12:20:59,992 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 31 proven. 3 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-12-22 12:20:59,992 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 12:21:00,306 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-12-22 12:21:00,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755429777] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 12:21:00,307 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 12:21:00,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7, 8] total 22 [2021-12-22 12:21:00,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647786060] [2021-12-22 12:21:00,308 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 12:21:00,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-12-22 12:21:00,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:21:00,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-12-22 12:21:00,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2021-12-22 12:21:00,309 INFO L87 Difference]: Start difference. First operand 595 states and 935 transitions. Second operand has 22 states, 21 states have (on average 6.904761904761905) internal successors, (145), 16 states have internal predecessors, (145), 6 states have call successors, (17), 6 states have call predecessors, (17), 9 states have return successors, (19), 10 states have call predecessors, (19), 6 states have call successors, (19) [2021-12-22 12:21:02,338 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 12:21:04,352 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 12:21:05,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:21:05,793 INFO L93 Difference]: Finished difference Result 1632 states and 2674 transitions. [2021-12-22 12:21:05,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-22 12:21:05,793 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 6.904761904761905) internal successors, (145), 16 states have internal predecessors, (145), 6 states have call successors, (17), 6 states have call predecessors, (17), 9 states have return successors, (19), 10 states have call predecessors, (19), 6 states have call successors, (19) Word has length 110 [2021-12-22 12:21:05,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:21:05,794 INFO L225 Difference]: With dead ends: 1632 [2021-12-22 12:21:05,794 INFO L226 Difference]: Without dead ends: 0 [2021-12-22 12:21:05,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 229 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=230, Invalid=1030, Unknown=0, NotChecked=0, Total=1260 [2021-12-22 12:21:05,803 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 1104 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 1488 mSolverCounterSat, 781 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 2271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 781 IncrementalHoareTripleChecker+Valid, 1488 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2021-12-22 12:21:05,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1110 Valid, 1075 Invalid, 2271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [781 Valid, 1488 Invalid, 2 Unknown, 0 Unchecked, 5.2s Time] [2021-12-22 12:21:05,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-22 12:21:05,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-22 12:21:05,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:21:05,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-22 12:21:05,806 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 110 [2021-12-22 12:21:05,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:21:05,806 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-22 12:21:05,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 6.904761904761905) internal successors, (145), 16 states have internal predecessors, (145), 6 states have call successors, (17), 6 states have call predecessors, (17), 9 states have return successors, (19), 10 states have call predecessors, (19), 6 states have call successors, (19) [2021-12-22 12:21:05,806 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-22 12:21:05,806 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-22 12:21:05,809 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-22 12:21:05,834 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-22 12:21:06,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 12:21:06,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-22 12:21:09,288 INFO L858 garLoopResultBuilder]: For program point __CS_pthread_mutex_initEXIT(lines 565 568) no Hoare annotation was computed. [2021-12-22 12:21:09,289 INFO L861 garLoopResultBuilder]: At program point __CS_pthread_mutex_initENTRY(lines 565 568) the Hoare annotation is: true [2021-12-22 12:21:09,289 INFO L858 garLoopResultBuilder]: For program point __CS_pthread_mutex_initFINAL(lines 565 568) no Hoare annotation was computed. [2021-12-22 12:21:09,289 INFO L858 garLoopResultBuilder]: For program point __CS_pthread_joinEXIT(lines 638 659) no Hoare annotation was computed. [2021-12-22 12:21:09,289 INFO L858 garLoopResultBuilder]: For program point L640(lines 640 645) no Hoare annotation was computed. [2021-12-22 12:21:09,289 INFO L854 garLoopResultBuilder]: At program point __CS_pthread_joinENTRY(lines 638 659) the Hoare annotation is: (or (not (= ~__CS_ret_PREEMPTED~0 1)) (and (= ~__CS_error~0 |old(~__CS_error~0)|) (= |old(~__CS_ret~0)| ~__CS_ret~0)) (not (= (mod |old(~__CS_ret~0)| 256) 0))) [2021-12-22 12:21:09,289 INFO L858 garLoopResultBuilder]: For program point __CS_pthread_joinFINAL(lines 638 659) no Hoare annotation was computed. [2021-12-22 12:21:09,289 INFO L858 garLoopResultBuilder]: For program point L657(line 657) no Hoare annotation was computed. [2021-12-22 12:21:09,289 INFO L858 garLoopResultBuilder]: For program point L657-2(line 657) no Hoare annotation was computed. [2021-12-22 12:21:09,289 INFO L858 garLoopResultBuilder]: For program point L651(lines 651 656) no Hoare annotation was computed. [2021-12-22 12:21:09,289 INFO L858 garLoopResultBuilder]: For program point L646(line 646) no Hoare annotation was computed. [2021-12-22 12:21:09,290 INFO L858 garLoopResultBuilder]: For program point L646-2(lines 646 650) no Hoare annotation was computed. [2021-12-22 12:21:09,290 INFO L854 garLoopResultBuilder]: At program point __CS_pthread_mutex_lockENTRY(lines 578 583) the Hoare annotation is: (or (and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(~__CS_ret~0)| ~__CS_ret~0)) (not (= ~__CS_ret_PREEMPTED~0 1)) (not (= (mod |old(~__CS_ret~0)| 256) 0))) [2021-12-22 12:21:09,290 INFO L858 garLoopResultBuilder]: For program point __CS_pthread_mutex_lockEXIT(lines 578 583) no Hoare annotation was computed. [2021-12-22 12:21:09,290 INFO L858 garLoopResultBuilder]: For program point L580(lines 580 581) no Hoare annotation was computed. [2021-12-22 12:21:09,290 INFO L858 garLoopResultBuilder]: For program point L580-1(lines 580 581) no Hoare annotation was computed. [2021-12-22 12:21:09,290 INFO L858 garLoopResultBuilder]: For program point __CS_pthread_mutex_lockFINAL(lines 578 583) no Hoare annotation was computed. [2021-12-22 12:21:09,290 INFO L854 garLoopResultBuilder]: At program point L729(line 729) the Hoare annotation is: (let ((.cse0 (not (= ~__CS_ret_PREEMPTED~0 1))) (.cse1 (not (= (mod |old(~__CS_ret~0)| 256) 0)))) (and (or .cse0 (and (= (mod ~__CS_ret~0 256) 0) (not (= |##fun~$Pointer$~TO~$Pointer$_#in~#fp#1.offset| 0))) .cse1) (or (not (= 0 |old(~__CS_error~0)|)) (= ~__CS_error~0 0) .cse0 .cse1) (or .cse0 (not (= (select |old(~__CS_thread~0.offset)| 2) 0)) .cse1 (= (select ~__CS_thread~0.offset 2) 0)))) [2021-12-22 12:21:09,290 INFO L858 garLoopResultBuilder]: For program point L729-1(lines 718 749) no Hoare annotation was computed. [2021-12-22 12:21:09,291 INFO L854 garLoopResultBuilder]: At program point L713(line 713) the Hoare annotation is: (let ((.cse0 (not (= ~__CS_ret_PREEMPTED~0 1))) (.cse1 (not (= (mod |old(~__CS_ret~0)| 256) 0)))) (and (or .cse0 (and (= (mod ~__CS_ret~0 256) 0) (not (= |##fun~$Pointer$~TO~$Pointer$_#in~#fp#1.offset| 0))) .cse1) (or .cse0 (not (= (select |old(~__CS_thread~0.offset)| 2) 0)) .cse1 (= (select ~__CS_thread~0.offset 2) 0)))) [2021-12-22 12:21:09,291 INFO L858 garLoopResultBuilder]: For program point L713-1(lines 702 716) no Hoare annotation was computed. [2021-12-22 12:21:09,291 INFO L854 garLoopResultBuilder]: At program point L730(line 730) the Hoare annotation is: (let ((.cse0 (not (= ~__CS_ret_PREEMPTED~0 1))) (.cse1 (not (= (mod |old(~__CS_ret~0)| 256) 0)))) (and (or .cse0 (and (= (mod ~__CS_ret~0 256) 0) (not (= |##fun~$Pointer$~TO~$Pointer$_#in~#fp#1.offset| 0))) .cse1) (or (not (= 0 |old(~__CS_error~0)|)) (= ~__CS_error~0 0) .cse0 .cse1) (or .cse0 (not (= (select |old(~__CS_thread~0.offset)| 2) 0)) .cse1 (= (select ~__CS_thread~0.offset 2) 0)))) [2021-12-22 12:21:09,291 INFO L858 garLoopResultBuilder]: For program point L730-1(line 730) no Hoare annotation was computed. [2021-12-22 12:21:09,291 INFO L854 garLoopResultBuilder]: At program point L697(line 697) the Hoare annotation is: (let ((.cse0 (not (= ~__CS_ret_PREEMPTED~0 1))) (.cse1 (not (= (mod |old(~__CS_ret~0)| 256) 0)))) (and (or .cse0 (not (= (select |old(~__CS_thread~0.offset)| 2) 0)) .cse1 (= (select ~__CS_thread~0.offset 2) 0)) (or (= (mod ~__CS_ret~0 256) 0) .cse0 .cse1))) [2021-12-22 12:21:09,292 INFO L858 garLoopResultBuilder]: For program point L697-1(lines 686 700) no Hoare annotation was computed. [2021-12-22 12:21:09,292 INFO L858 garLoopResultBuilder]: For program point ##fun~$Pointer$~TO~$Pointer$FINAL(line -1) no Hoare annotation was computed. [2021-12-22 12:21:09,292 INFO L854 garLoopResultBuilder]: At program point L714(line 714) the Hoare annotation is: (let ((.cse0 (not (= ~__CS_ret_PREEMPTED~0 1))) (.cse1 (not (= (mod |old(~__CS_ret~0)| 256) 0)))) (and (or .cse0 (and (= (mod ~__CS_ret~0 256) 0) (not (= |##fun~$Pointer$~TO~$Pointer$_#in~#fp#1.offset| 0))) .cse1) (or .cse0 (not (= (select |old(~__CS_thread~0.offset)| 2) 0)) .cse1 (= (select ~__CS_thread~0.offset 2) 0)))) [2021-12-22 12:21:09,292 INFO L858 garLoopResultBuilder]: For program point L714-1(line 714) no Hoare annotation was computed. [2021-12-22 12:21:09,292 INFO L858 garLoopResultBuilder]: For program point ##fun~$Pointer$~TO~$Pointer$EXIT(line -1) no Hoare annotation was computed. [2021-12-22 12:21:09,292 INFO L854 garLoopResultBuilder]: At program point L731(line 731) the Hoare annotation is: (let ((.cse0 (not (= ~__CS_ret_PREEMPTED~0 1))) (.cse1 (not (= (mod |old(~__CS_ret~0)| 256) 0)))) (and (or .cse0 (and (= (mod ~__CS_ret~0 256) 0) (not (= |##fun~$Pointer$~TO~$Pointer$_#in~#fp#1.offset| 0))) .cse1) (or (not (= 0 |old(~__CS_error~0)|)) (= ~__CS_error~0 0) .cse0 .cse1))) [2021-12-22 12:21:09,292 INFO L858 garLoopResultBuilder]: For program point L731-1(lines 718 749) no Hoare annotation was computed. [2021-12-22 12:21:09,292 INFO L854 garLoopResultBuilder]: At program point L698(line 698) the Hoare annotation is: (let ((.cse0 (not (= ~__CS_ret_PREEMPTED~0 1))) (.cse1 (not (= (mod |old(~__CS_ret~0)| 256) 0)))) (and (or .cse0 (not (= (select |old(~__CS_thread~0.offset)| 2) 0)) .cse1 (= (select ~__CS_thread~0.offset 2) 0)) (or (= (mod ~__CS_ret~0 256) 0) .cse0 .cse1))) [2021-12-22 12:21:09,293 INFO L858 garLoopResultBuilder]: For program point L698-1(line 698) no Hoare annotation was computed. [2021-12-22 12:21:09,293 INFO L858 garLoopResultBuilder]: For program point L748(lines 718 749) no Hoare annotation was computed. [2021-12-22 12:21:09,293 INFO L854 garLoopResultBuilder]: At program point L715(line 715) the Hoare annotation is: (let ((.cse0 (not (= ~__CS_ret_PREEMPTED~0 1))) (.cse1 (not (= (mod |old(~__CS_ret~0)| 256) 0)))) (and (or .cse0 (not (= (select |old(~__CS_thread~0.offset)| 2) 0)) .cse1 (= (select ~__CS_thread~0.offset 2) 0)) (or .cse0 (not (= |##fun~$Pointer$~TO~$Pointer$_#in~#fp#1.offset| 0)) .cse1))) [2021-12-22 12:21:09,293 INFO L858 garLoopResultBuilder]: For program point L715-1(lines 702 716) no Hoare annotation was computed. [2021-12-22 12:21:09,293 INFO L854 garLoopResultBuilder]: At program point L732(line 732) the Hoare annotation is: (let ((.cse0 (not (= ~__CS_ret_PREEMPTED~0 1))) (.cse1 (not (= (mod |old(~__CS_ret~0)| 256) 0)))) (and (or .cse0 (and (= (mod ~__CS_ret~0 256) 0) (not (= |##fun~$Pointer$~TO~$Pointer$_#in~#fp#1.offset| 0))) .cse1) (or (not (= 0 |old(~__CS_error~0)|)) (= ~__CS_error~0 0) .cse0 .cse1))) [2021-12-22 12:21:09,293 INFO L858 garLoopResultBuilder]: For program point L732-1(line 732) no Hoare annotation was computed. [2021-12-22 12:21:09,293 INFO L854 garLoopResultBuilder]: At program point L699(line 699) the Hoare annotation is: (or (not (= ~__CS_ret_PREEMPTED~0 1)) (not (= (select |old(~__CS_thread~0.offset)| 2) 0)) (not (= (mod |old(~__CS_ret~0)| 256) 0)) (= (select ~__CS_thread~0.offset 2) 0)) [2021-12-22 12:21:09,294 INFO L858 garLoopResultBuilder]: For program point L699-1(lines 686 700) no Hoare annotation was computed. [2021-12-22 12:21:09,294 INFO L854 garLoopResultBuilder]: At program point L733(line 733) the Hoare annotation is: (let ((.cse0 (not (= ~__CS_ret_PREEMPTED~0 1))) (.cse1 (not (= (mod |old(~__CS_ret~0)| 256) 0)))) (and (or .cse0 (and (= (mod ~__CS_ret~0 256) 0) (not (= |##fun~$Pointer$~TO~$Pointer$_#in~#fp#1.offset| 0))) .cse1) (or (not (= 0 |old(~__CS_error~0)|)) (= ~__CS_error~0 0) .cse0 .cse1))) [2021-12-22 12:21:09,294 INFO L858 garLoopResultBuilder]: For program point L733-1(lines 718 749) no Hoare annotation was computed. [2021-12-22 12:21:09,294 INFO L854 garLoopResultBuilder]: At program point L717(lines 717 749) the Hoare annotation is: (or (not (= ~__CS_ret_PREEMPTED~0 1)) (not (= |##fun~$Pointer$~TO~$Pointer$_#in~#fp#1.offset| 0)) (not (= (mod |old(~__CS_ret~0)| 256) 0))) [2021-12-22 12:21:09,294 INFO L854 garLoopResultBuilder]: At program point L734(line 734) the Hoare annotation is: (let ((.cse0 (not (= ~__CS_ret_PREEMPTED~0 1))) (.cse1 (not (= (mod |old(~__CS_ret~0)| 256) 0)))) (and (or .cse0 (and (= (mod ~__CS_ret~0 256) 0) (not (= |##fun~$Pointer$~TO~$Pointer$_#in~#fp#1.offset| 0))) .cse1) (or (not (= 0 |old(~__CS_error~0)|)) (= ~__CS_error~0 0) .cse0 .cse1))) [2021-12-22 12:21:09,294 INFO L858 garLoopResultBuilder]: For program point L734-1(line 734) no Hoare annotation was computed. [2021-12-22 12:21:09,295 INFO L854 garLoopResultBuilder]: At program point L701(lines 701 716) the Hoare annotation is: (let ((.cse0 (not (= ~__CS_ret_PREEMPTED~0 1))) (.cse1 (not (= (mod |old(~__CS_ret~0)| 256) 0)))) (and (or .cse0 (not (= (select |old(~__CS_thread~0.offset)| 2) 0)) .cse1 (= (select ~__CS_thread~0.offset 2) 0)) (or .cse0 (not (= |##fun~$Pointer$~TO~$Pointer$_#in~#fp#1.offset| 0)) .cse1))) [2021-12-22 12:21:09,295 INFO L854 garLoopResultBuilder]: At program point L685(lines 685 700) the Hoare annotation is: (or (not (= ~__CS_ret_PREEMPTED~0 1)) (not (= (select |old(~__CS_thread~0.offset)| 2) 0)) (not (= (mod |old(~__CS_ret~0)| 256) 0)) (= (select ~__CS_thread~0.offset 2) 0)) [2021-12-22 12:21:09,295 INFO L854 garLoopResultBuilder]: At program point L735(line 735) the Hoare annotation is: (or (not (= ~__CS_ret_PREEMPTED~0 1)) (not (= |##fun~$Pointer$~TO~$Pointer$_#in~#fp#1.offset| 0)) (not (= (mod |old(~__CS_ret~0)| 256) 0))) [2021-12-22 12:21:09,295 INFO L858 garLoopResultBuilder]: For program point L735-1(lines 718 749) no Hoare annotation was computed. [2021-12-22 12:21:09,295 INFO L854 garLoopResultBuilder]: At program point L736(line 736) the Hoare annotation is: (or (not (= ~__CS_ret_PREEMPTED~0 1)) (and (= (mod ~__CS_ret~0 256) 0) (not (= |##fun~$Pointer$~TO~$Pointer$_#in~#fp#1.offset| 0))) (not (= (mod |old(~__CS_ret~0)| 256) 0))) [2021-12-22 12:21:09,295 INFO L858 garLoopResultBuilder]: For program point L736-1(line 736) no Hoare annotation was computed. [2021-12-22 12:21:09,295 INFO L854 garLoopResultBuilder]: At program point L703(line 703) the Hoare annotation is: (or (and (= |old(#length)| |#length|) (= |old(~__CS_thread~0.offset)| ~__CS_thread~0.offset) (= |#memory_int| |old(#memory_int)|) (= ~__CS_error~0 |old(~__CS_error~0)|) (= ~__CS_thread~0.base |old(~__CS_thread~0.base)|) (= |old(~__CS_round~0)| ~__CS_round~0) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(~__CS_ret~0)| ~__CS_ret~0) (= |old(#valid)| |#valid|) (not (= |##fun~$Pointer$~TO~$Pointer$_#in~#fp#1.offset| 0)) (= ~__CS_thread_index~0 |old(~__CS_thread_index~0)|)) (not (= ~__CS_ret_PREEMPTED~0 1)) (not (= (mod |old(~__CS_ret~0)| 256) 0))) [2021-12-22 12:21:09,295 INFO L858 garLoopResultBuilder]: For program point L703-1(lines 702 716) no Hoare annotation was computed. [2021-12-22 12:21:09,295 INFO L854 garLoopResultBuilder]: At program point L687(line 687) the Hoare annotation is: (or (not (= ~__CS_ret_PREEMPTED~0 1)) (and (= |old(#length)| |#length|) (= |old(~__CS_thread~0.offset)| ~__CS_thread~0.offset) (= |#memory_int| |old(#memory_int)|) (= ~__CS_error~0 |old(~__CS_error~0)|) (= ~__CS_thread~0.base |old(~__CS_thread~0.base)|) (= |old(~__CS_round~0)| ~__CS_round~0) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(~__CS_ret~0)| ~__CS_ret~0) (= |old(#valid)| |#valid|) (= ~__CS_thread_index~0 |old(~__CS_thread_index~0)|)) (not (= (mod |old(~__CS_ret~0)| 256) 0))) [2021-12-22 12:21:09,296 INFO L858 garLoopResultBuilder]: For program point L687-1(lines 686 700) no Hoare annotation was computed. [2021-12-22 12:21:09,296 INFO L854 garLoopResultBuilder]: At program point L737(line 737) the Hoare annotation is: (or (not (= ~__CS_ret_PREEMPTED~0 1)) (not (= |##fun~$Pointer$~TO~$Pointer$_#in~#fp#1.offset| 0)) (not (= (mod |old(~__CS_ret~0)| 256) 0))) [2021-12-22 12:21:09,296 INFO L858 garLoopResultBuilder]: For program point L737-1(lines 718 749) no Hoare annotation was computed. [2021-12-22 12:21:09,296 INFO L854 garLoopResultBuilder]: At program point L704(line 704) the Hoare annotation is: (let ((.cse0 (not (= ~__CS_ret_PREEMPTED~0 1))) (.cse1 (not (= (mod |old(~__CS_ret~0)| 256) 0)))) (and (or .cse0 (and (= (mod ~__CS_ret~0 256) 0) (not (= |##fun~$Pointer$~TO~$Pointer$_#in~#fp#1.offset| 0))) .cse1) (or (not (= 0 |old(~__CS_error~0)|)) (= ~__CS_error~0 0) .cse0 .cse1) (or .cse0 (not (= (select |old(~__CS_thread~0.offset)| 2) 0)) .cse1 (= (select ~__CS_thread~0.offset 2) 0)))) [2021-12-22 12:21:09,296 INFO L858 garLoopResultBuilder]: For program point L704-1(line 704) no Hoare annotation was computed. [2021-12-22 12:21:09,296 INFO L854 garLoopResultBuilder]: At program point L721(line 721) the Hoare annotation is: (let ((.cse0 (not (= ~__CS_ret_PREEMPTED~0 1))) (.cse1 (not (= (mod |old(~__CS_ret~0)| 256) 0)))) (and (or .cse0 (and (= |#memory_int| |old(#memory_int)|) (= ~__CS_error~0 |old(~__CS_error~0)|) (= |old(~__CS_round~0)| ~__CS_round~0) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(~__CS_ret~0)| ~__CS_ret~0) (not (= |##fun~$Pointer$~TO~$Pointer$_#in~#fp#1.offset| 0))) .cse1) (or .cse0 (not (= (select |old(~__CS_thread~0.offset)| 2) 0)) .cse1 (= (select ~__CS_thread~0.offset 2) 0)))) [2021-12-22 12:21:09,296 INFO L858 garLoopResultBuilder]: For program point L721-1(lines 718 749) no Hoare annotation was computed. [2021-12-22 12:21:09,297 INFO L854 garLoopResultBuilder]: At program point L688(line 688) the Hoare annotation is: (let ((.cse0 (not (= ~__CS_ret_PREEMPTED~0 1))) (.cse1 (not (= (mod |old(~__CS_ret~0)| 256) 0)))) (and (or (not (= 0 |old(~__CS_error~0)|)) (= ~__CS_error~0 0) .cse0 .cse1) (or .cse0 (not (= (select |old(~__CS_thread~0.offset)| 2) 0)) .cse1 (= (select ~__CS_thread~0.offset 2) 0)) (or (= (mod ~__CS_ret~0 256) 0) .cse0 .cse1))) [2021-12-22 12:21:09,297 INFO L858 garLoopResultBuilder]: For program point L688-1(line 688) no Hoare annotation was computed. [2021-12-22 12:21:09,297 INFO L858 garLoopResultBuilder]: For program point L738(line 738) no Hoare annotation was computed. [2021-12-22 12:21:09,297 INFO L854 garLoopResultBuilder]: At program point L705(line 705) the Hoare annotation is: (let ((.cse2 (not (= ~__CS_ret_PREEMPTED~0 1))) (.cse3 (not (= (mod |old(~__CS_ret~0)| 256) 0)))) (and (let ((.cse1 (not (= |##fun~$Pointer$~TO~$Pointer$_#in~#fp#1.offset| 0)))) (or (let ((.cse0 (+ ~__CS_ret~0 (* (div ~__CS_ret_PREEMPTED~0 256) 256)))) (and (<= .cse0 ~__CS_ret_PREEMPTED~0) .cse1 (<= ~__CS_ret_PREEMPTED~0 .cse0))) .cse2 (and (= (mod ~__CS_ret~0 256) 0) .cse1) .cse3)) (or (not (= 0 |old(~__CS_error~0)|)) (= ~__CS_error~0 0) .cse2 .cse3) (or .cse2 (not (= (select |old(~__CS_thread~0.offset)| 2) 0)) .cse3 (= (select ~__CS_thread~0.offset 2) 0)))) [2021-12-22 12:21:09,297 INFO L858 garLoopResultBuilder]: For program point L738-2(lines 738 747) no Hoare annotation was computed. [2021-12-22 12:21:09,298 INFO L858 garLoopResultBuilder]: For program point L705-1(lines 702 716) no Hoare annotation was computed. [2021-12-22 12:21:09,298 INFO L854 garLoopResultBuilder]: At program point L738-4(lines 738 747) the Hoare annotation is: (or (not (= ~__CS_ret_PREEMPTED~0 1)) (and (= (mod ~__CS_ret~0 256) 0) (not (= |##fun~$Pointer$~TO~$Pointer$_#in~#fp#1.offset| 0))) (not (= (mod |old(~__CS_ret~0)| 256) 0))) [2021-12-22 12:21:09,299 INFO L854 garLoopResultBuilder]: At program point L722(line 722) the Hoare annotation is: (let ((.cse0 (not (= ~__CS_ret_PREEMPTED~0 1))) (.cse1 (not (= (mod |old(~__CS_ret~0)| 256) 0)))) (and (or .cse0 (and (= (mod ~__CS_ret~0 256) 0) (not (= |##fun~$Pointer$~TO~$Pointer$_#in~#fp#1.offset| 0))) .cse1) (or (not (= 0 |old(~__CS_error~0)|)) (= ~__CS_error~0 0) .cse0 .cse1) (or .cse0 (not (= (select |old(~__CS_thread~0.offset)| 2) 0)) .cse1 (= (select ~__CS_thread~0.offset 2) 0)))) [2021-12-22 12:21:09,299 INFO L858 garLoopResultBuilder]: For program point L722-1(line 722) no Hoare annotation was computed. [2021-12-22 12:21:09,299 INFO L854 garLoopResultBuilder]: At program point L689(line 689) the Hoare annotation is: (let ((.cse1 (not (= ~__CS_ret_PREEMPTED~0 1))) (.cse2 (not (= (mod |old(~__CS_ret~0)| 256) 0)))) (and (or (= (mod ~__CS_ret~0 256) 0) (let ((.cse0 (+ ~__CS_ret~0 (* (div ~__CS_ret_PREEMPTED~0 256) 256)))) (and (<= .cse0 ~__CS_ret_PREEMPTED~0) (<= ~__CS_ret_PREEMPTED~0 .cse0))) .cse1 .cse2) (or (not (= 0 |old(~__CS_error~0)|)) (= ~__CS_error~0 0) .cse1 .cse2) (or .cse1 (not (= (select |old(~__CS_thread~0.offset)| 2) 0)) .cse2 (= (select ~__CS_thread~0.offset 2) 0)))) [2021-12-22 12:21:09,299 INFO L858 garLoopResultBuilder]: For program point L689-1(lines 686 700) no Hoare annotation was computed. [2021-12-22 12:21:09,299 INFO L854 garLoopResultBuilder]: At program point ##fun~$Pointer$~TO~$Pointer$ENTRY(line -1) the Hoare annotation is: (or (not (= ~__CS_ret_PREEMPTED~0 1)) (and (= |old(#length)| |#length|) (= |old(~__CS_thread~0.offset)| ~__CS_thread~0.offset) (= |#memory_int| |old(#memory_int)|) (= ~__CS_error~0 |old(~__CS_error~0)|) (= ~__CS_thread~0.base |old(~__CS_thread~0.base)|) (= |old(~__CS_round~0)| ~__CS_round~0) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(~__CS_ret~0)| ~__CS_ret~0) (= |old(#valid)| |#valid|) (= ~__CS_thread_index~0 |old(~__CS_thread_index~0)|)) (not (= (mod |old(~__CS_ret~0)| 256) 0))) [2021-12-22 12:21:09,300 INFO L854 garLoopResultBuilder]: At program point L723(line 723) the Hoare annotation is: (let ((.cse0 (not (= ~__CS_ret_PREEMPTED~0 1))) (.cse1 (not (= (mod |old(~__CS_ret~0)| 256) 0)))) (and (or .cse0 (and (= (mod ~__CS_ret~0 256) 0) (not (= |##fun~$Pointer$~TO~$Pointer$_#in~#fp#1.offset| 0))) .cse1) (or (not (= 0 |old(~__CS_error~0)|)) (= ~__CS_error~0 0) .cse0 .cse1) (or .cse0 (not (= (select |old(~__CS_thread~0.offset)| 2) 0)) .cse1 (= (select ~__CS_thread~0.offset 2) 0)))) [2021-12-22 12:21:09,300 INFO L858 garLoopResultBuilder]: For program point L723-1(lines 718 749) no Hoare annotation was computed. [2021-12-22 12:21:09,300 INFO L854 garLoopResultBuilder]: At program point L740(line 740) the Hoare annotation is: (or (not (= ~__CS_ret_PREEMPTED~0 1)) (and (= (mod ~__CS_ret~0 256) 0) (not (= |##fun~$Pointer$~TO~$Pointer$_#in~#fp#1.offset| 0))) (not (= (mod |old(~__CS_ret~0)| 256) 0))) [2021-12-22 12:21:09,300 INFO L858 garLoopResultBuilder]: For program point L740-1(lines 739 747) no Hoare annotation was computed. [2021-12-22 12:21:09,300 INFO L854 garLoopResultBuilder]: At program point L707(line 707) the Hoare annotation is: (let ((.cse0 (not (= ~__CS_ret_PREEMPTED~0 1))) (.cse1 (not (= (mod |old(~__CS_ret~0)| 256) 0)))) (and (or .cse0 (and (= (mod ~__CS_ret~0 256) 0) (not (= |##fun~$Pointer$~TO~$Pointer$_#in~#fp#1.offset| 0))) .cse1) (or (not (= 0 |old(~__CS_error~0)|)) (= ~__CS_error~0 0) .cse0 .cse1) (or .cse0 (not (= (select |old(~__CS_thread~0.offset)| 2) 0)) .cse1 (= (select ~__CS_thread~0.offset 2) 0)))) [2021-12-22 12:21:09,300 INFO L858 garLoopResultBuilder]: For program point L707-1(lines 702 716) no Hoare annotation was computed. [2021-12-22 12:21:09,300 INFO L854 garLoopResultBuilder]: At program point L724(line 724) the Hoare annotation is: (let ((.cse0 (not (= ~__CS_ret_PREEMPTED~0 1))) (.cse1 (not (= (mod |old(~__CS_ret~0)| 256) 0)))) (and (or .cse0 (and (= (mod ~__CS_ret~0 256) 0) (not (= |##fun~$Pointer$~TO~$Pointer$_#in~#fp#1.offset| 0))) .cse1) (or (not (= 0 |old(~__CS_error~0)|)) (= ~__CS_error~0 0) .cse0 .cse1) (or .cse0 (not (= (select |old(~__CS_thread~0.offset)| 2) 0)) .cse1 (= (select ~__CS_thread~0.offset 2) 0)))) [2021-12-22 12:21:09,300 INFO L858 garLoopResultBuilder]: For program point L724-1(line 724) no Hoare annotation was computed. [2021-12-22 12:21:09,300 INFO L854 garLoopResultBuilder]: At program point L691(line 691) the Hoare annotation is: (let ((.cse0 (not (= ~__CS_ret_PREEMPTED~0 1))) (.cse1 (not (= (mod |old(~__CS_ret~0)| 256) 0)))) (and (or (not (= 0 |old(~__CS_error~0)|)) (= ~__CS_error~0 0) .cse0 .cse1) (or .cse0 (not (= (select |old(~__CS_thread~0.offset)| 2) 0)) .cse1 (= (select ~__CS_thread~0.offset 2) 0)) (or (= (mod ~__CS_ret~0 256) 0) .cse0 .cse1))) [2021-12-22 12:21:09,300 INFO L858 garLoopResultBuilder]: For program point L691-1(lines 686 700) no Hoare annotation was computed. [2021-12-22 12:21:09,300 INFO L854 garLoopResultBuilder]: At program point L708(line 708) the Hoare annotation is: (let ((.cse0 (not (= ~__CS_ret_PREEMPTED~0 1))) (.cse1 (not (= (mod |old(~__CS_ret~0)| 256) 0)))) (and (or .cse0 (and (= (mod ~__CS_ret~0 256) 0) (not (= |##fun~$Pointer$~TO~$Pointer$_#in~#fp#1.offset| 0))) .cse1) (or (not (= 0 |old(~__CS_error~0)|)) (= ~__CS_error~0 0) .cse0 .cse1) (or .cse0 (not (= (select |old(~__CS_thread~0.offset)| 2) 0)) .cse1 (= (select ~__CS_thread~0.offset 2) 0)))) [2021-12-22 12:21:09,300 INFO L858 garLoopResultBuilder]: For program point L708-1(line 708) no Hoare annotation was computed. [2021-12-22 12:21:09,300 INFO L854 garLoopResultBuilder]: At program point L725(line 725) the Hoare annotation is: (let ((.cse0 (not (= ~__CS_ret_PREEMPTED~0 1))) (.cse1 (not (= (mod |old(~__CS_ret~0)| 256) 0)))) (and (or .cse0 (and (= (mod ~__CS_ret~0 256) 0) (not (= |##fun~$Pointer$~TO~$Pointer$_#in~#fp#1.offset| 0))) .cse1) (or (not (= 0 |old(~__CS_error~0)|)) (= ~__CS_error~0 0) .cse0 .cse1) (or .cse0 (not (= (select |old(~__CS_thread~0.offset)| 2) 0)) .cse1 (= (select ~__CS_thread~0.offset 2) 0)))) [2021-12-22 12:21:09,300 INFO L858 garLoopResultBuilder]: For program point L725-1(lines 718 749) no Hoare annotation was computed. [2021-12-22 12:21:09,300 INFO L854 garLoopResultBuilder]: At program point L692(line 692) the Hoare annotation is: (let ((.cse0 (not (= ~__CS_ret_PREEMPTED~0 1))) (.cse1 (not (= (mod |old(~__CS_ret~0)| 256) 0)))) (and (or (not (= 0 |old(~__CS_error~0)|)) (= ~__CS_error~0 0) .cse0 .cse1) (or .cse0 (not (= (select |old(~__CS_thread~0.offset)| 2) 0)) .cse1 (= (select ~__CS_thread~0.offset 2) 0)) (or (= (mod ~__CS_ret~0 256) 0) .cse0 .cse1))) [2021-12-22 12:21:09,300 INFO L858 garLoopResultBuilder]: For program point L692-1(line 692) no Hoare annotation was computed. [2021-12-22 12:21:09,300 INFO L854 garLoopResultBuilder]: At program point L709(line 709) the Hoare annotation is: (let ((.cse0 (not (= ~__CS_ret_PREEMPTED~0 1))) (.cse1 (not (= (mod |old(~__CS_ret~0)| 256) 0)))) (and (or .cse0 (not (= (select |old(~__CS_thread~0.offset)| 2) 0)) .cse1 (= (select ~__CS_thread~0.offset 2) 0)) (or .cse0 (not (= |##fun~$Pointer$~TO~$Pointer$_#in~#fp#1.offset| 0)) .cse1))) [2021-12-22 12:21:09,300 INFO L858 garLoopResultBuilder]: For program point L709-1(lines 702 716) no Hoare annotation was computed. [2021-12-22 12:21:09,300 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-22 12:21:09,300 INFO L858 garLoopResultBuilder]: For program point L-1-2(line -1) no Hoare annotation was computed. [2021-12-22 12:21:09,300 INFO L858 garLoopResultBuilder]: For program point L-1-4(line -1) no Hoare annotation was computed. [2021-12-22 12:21:09,301 INFO L854 garLoopResultBuilder]: At program point L693(line 693) the Hoare annotation is: (or (not (= ~__CS_ret_PREEMPTED~0 1)) (not (= (select |old(~__CS_thread~0.offset)| 2) 0)) (not (= (mod |old(~__CS_ret~0)| 256) 0)) (= (select ~__CS_thread~0.offset 2) 0)) [2021-12-22 12:21:09,301 INFO L858 garLoopResultBuilder]: For program point L693-1(lines 686 700) no Hoare annotation was computed. [2021-12-22 12:21:09,301 INFO L854 garLoopResultBuilder]: At program point L743(lines 739 747) the Hoare annotation is: (or (not (= ~__CS_ret_PREEMPTED~0 1)) (and (= (mod ~__CS_ret~0 256) 0) (not (= |##fun~$Pointer$~TO~$Pointer$_#in~#fp#1.offset| 0))) (not (= (mod |old(~__CS_ret~0)| 256) 0))) [2021-12-22 12:21:09,301 INFO L854 garLoopResultBuilder]: At program point L710(line 710) the Hoare annotation is: (let ((.cse0 (not (= ~__CS_ret_PREEMPTED~0 1))) (.cse1 (not (= (mod |old(~__CS_ret~0)| 256) 0)))) (and (or .cse0 (and (= (mod ~__CS_ret~0 256) 0) (not (= |##fun~$Pointer$~TO~$Pointer$_#in~#fp#1.offset| 0))) .cse1) (or .cse0 (not (= (select |old(~__CS_thread~0.offset)| 2) 0)) .cse1 (= (select ~__CS_thread~0.offset 2) 0)))) [2021-12-22 12:21:09,301 INFO L858 garLoopResultBuilder]: For program point L710-1(line 710) no Hoare annotation was computed. [2021-12-22 12:21:09,301 INFO L854 garLoopResultBuilder]: At program point L727(line 727) the Hoare annotation is: (let ((.cse0 (not (= ~__CS_ret_PREEMPTED~0 1))) (.cse1 (not (= (mod |old(~__CS_ret~0)| 256) 0)))) (and (or .cse0 (and (= (mod ~__CS_ret~0 256) 0) (not (= |##fun~$Pointer$~TO~$Pointer$_#in~#fp#1.offset| 0))) .cse1) (or (not (= 0 |old(~__CS_error~0)|)) (= ~__CS_error~0 0) .cse0 .cse1) (or .cse0 (not (= (select |old(~__CS_thread~0.offset)| 2) 0)) .cse1 (= (select ~__CS_thread~0.offset 2) 0)))) [2021-12-22 12:21:09,301 INFO L858 garLoopResultBuilder]: For program point L727-1(lines 718 749) no Hoare annotation was computed. [2021-12-22 12:21:09,301 INFO L854 garLoopResultBuilder]: At program point L694(line 694) the Hoare annotation is: (let ((.cse0 (not (= ~__CS_ret_PREEMPTED~0 1))) (.cse1 (not (= (mod |old(~__CS_ret~0)| 256) 0)))) (and (or .cse0 (not (= (select |old(~__CS_thread~0.offset)| 2) 0)) .cse1 (= (select ~__CS_thread~0.offset 2) 0)) (or (= (mod ~__CS_ret~0 256) 0) .cse0 .cse1))) [2021-12-22 12:21:09,301 INFO L858 garLoopResultBuilder]: For program point L694-1(line 694) no Hoare annotation was computed. [2021-12-22 12:21:09,301 INFO L854 garLoopResultBuilder]: At program point L711(line 711) the Hoare annotation is: (let ((.cse2 (not (= ~__CS_ret_PREEMPTED~0 1))) (.cse3 (not (= (mod |old(~__CS_ret~0)| 256) 0)))) (and (let ((.cse1 (not (= |##fun~$Pointer$~TO~$Pointer$_#in~#fp#1.offset| 0)))) (or (let ((.cse0 (+ ~__CS_ret~0 (* (div ~__CS_ret_PREEMPTED~0 256) 256)))) (and (<= .cse0 ~__CS_ret_PREEMPTED~0) .cse1 (<= ~__CS_ret_PREEMPTED~0 .cse0))) .cse2 (and (= (mod ~__CS_ret~0 256) 0) .cse1) .cse3)) (or .cse2 (not (= (select |old(~__CS_thread~0.offset)| 2) 0)) .cse3 (= (select ~__CS_thread~0.offset 2) 0)))) [2021-12-22 12:21:09,301 INFO L858 garLoopResultBuilder]: For program point L711-1(lines 702 716) no Hoare annotation was computed. [2021-12-22 12:21:09,301 INFO L854 garLoopResultBuilder]: At program point L695(line 695) the Hoare annotation is: (let ((.cse1 (not (= ~__CS_ret_PREEMPTED~0 1))) (.cse2 (not (= (mod |old(~__CS_ret~0)| 256) 0)))) (and (or (= (mod ~__CS_ret~0 256) 0) (let ((.cse0 (+ ~__CS_ret~0 (* (div ~__CS_ret_PREEMPTED~0 256) 256)))) (and (<= .cse0 ~__CS_ret_PREEMPTED~0) (<= ~__CS_ret_PREEMPTED~0 .cse0))) .cse1 .cse2) (or .cse1 (not (= (select |old(~__CS_thread~0.offset)| 2) 0)) .cse2 (= (select ~__CS_thread~0.offset 2) 0)))) [2021-12-22 12:21:09,301 INFO L858 garLoopResultBuilder]: For program point L695-1(lines 686 700) no Hoare annotation was computed. [2021-12-22 12:21:09,301 INFO L854 garLoopResultBuilder]: At program point __CS_pthread_mutex_unlockENTRY(lines 584 592) the Hoare annotation is: (or (not (= ~__CS_ret_PREEMPTED~0 1)) (and (= |#memory_int| |old(#memory_int)|) (= ~__CS_error~0 |old(~__CS_error~0)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(~__CS_ret~0)| ~__CS_ret~0)) (not (= (mod |old(~__CS_ret~0)| 256) 0))) [2021-12-22 12:21:09,301 INFO L858 garLoopResultBuilder]: For program point L586(lines 586 590) no Hoare annotation was computed. [2021-12-22 12:21:09,301 INFO L858 garLoopResultBuilder]: For program point __CS_pthread_mutex_unlockFINAL(lines 584 592) no Hoare annotation was computed. [2021-12-22 12:21:09,301 INFO L858 garLoopResultBuilder]: For program point __CS_pthread_mutex_unlockEXIT(lines 584 592) no Hoare annotation was computed. [2021-12-22 12:21:09,301 INFO L858 garLoopResultBuilder]: For program point __CS_pthread_createFINAL(lines 660 673) no Hoare annotation was computed. [2021-12-22 12:21:09,301 INFO L858 garLoopResultBuilder]: For program point __CS_pthread_createEXIT(lines 660 673) no Hoare annotation was computed. [2021-12-22 12:21:09,301 INFO L854 garLoopResultBuilder]: At program point __CS_pthread_createENTRY(lines 660 673) the Hoare annotation is: (or (not (= (mod ~__CS_ret~0 256) 0)) (and (= |old(~__CS_thread~0.offset)| ~__CS_thread~0.offset) (= |#memory_int| |old(#memory_int)|) (= ~__CS_thread~0.base |old(~__CS_thread~0.base)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= ~__CS_thread_index~0 |old(~__CS_thread_index~0)|)) (not (= ~__CS_ret_PREEMPTED~0 1))) [2021-12-22 12:21:09,301 INFO L858 garLoopResultBuilder]: For program point L662(lines 662 665) no Hoare annotation was computed. [2021-12-22 12:21:09,302 INFO L858 garLoopResultBuilder]: For program point L803-2(line 803) no Hoare annotation was computed. [2021-12-22 12:21:09,302 INFO L854 garLoopResultBuilder]: At program point L787(line 787) the Hoare annotation is: (and (= (mod ~__CS_ret~0 256) 0) (= ~__CS_error~0 0) (= (+ (- 1) ~__CS_ret_PREEMPTED~0) 0) (= (select ~__CS_thread~0.offset 2) 0)) [2021-12-22 12:21:09,302 INFO L858 garLoopResultBuilder]: For program point L787-1(line 787) no Hoare annotation was computed. [2021-12-22 12:21:09,302 INFO L858 garLoopResultBuilder]: For program point L804(line 804) no Hoare annotation was computed. [2021-12-22 12:21:09,302 INFO L858 garLoopResultBuilder]: For program point L804-2(line 804) no Hoare annotation was computed. [2021-12-22 12:21:09,302 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-22 12:21:09,302 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-22 12:21:09,302 INFO L858 garLoopResultBuilder]: For program point L796(lines 796 801) no Hoare annotation was computed. [2021-12-22 12:21:09,302 INFO L858 garLoopResultBuilder]: For program point L796-1(lines 796 801) no Hoare annotation was computed. [2021-12-22 12:21:09,302 INFO L858 garLoopResultBuilder]: For program point L788(line 788) no Hoare annotation was computed. [2021-12-22 12:21:09,302 INFO L858 garLoopResultBuilder]: For program point L805(line 805) no Hoare annotation was computed. [2021-12-22 12:21:09,302 INFO L858 garLoopResultBuilder]: For program point L805-2(line 805) no Hoare annotation was computed. [2021-12-22 12:21:09,302 INFO L858 garLoopResultBuilder]: For program point L806(line 806) no Hoare annotation was computed. [2021-12-22 12:21:09,302 INFO L858 garLoopResultBuilder]: For program point L806-2(line 806) no Hoare annotation was computed. [2021-12-22 12:21:09,302 INFO L858 garLoopResultBuilder]: For program point L790(lines 790 795) no Hoare annotation was computed. [2021-12-22 12:21:09,302 INFO L858 garLoopResultBuilder]: For program point L790-1(lines 790 795) no Hoare annotation was computed. [2021-12-22 12:21:09,302 INFO L858 garLoopResultBuilder]: For program point L807(line 807) no Hoare annotation was computed. [2021-12-22 12:21:09,302 INFO L858 garLoopResultBuilder]: For program point L807-2(line 807) no Hoare annotation was computed. [2021-12-22 12:21:09,302 INFO L854 garLoopResultBuilder]: At program point L799(line 799) the Hoare annotation is: (and (= (mod ~__CS_ret~0 256) 0) (= ~__CS_ret_PREEMPTED~0 1)) [2021-12-22 12:21:09,302 INFO L858 garLoopResultBuilder]: For program point L799-1(line 799) no Hoare annotation was computed. [2021-12-22 12:21:09,302 INFO L858 garLoopResultBuilder]: For program point L535(lines 535 537) no Hoare annotation was computed. [2021-12-22 12:21:09,302 INFO L861 garLoopResultBuilder]: At program point L535-2(lines 534 539) the Hoare annotation is: true [2021-12-22 12:21:09,302 INFO L858 garLoopResultBuilder]: For program point L758-2(lines 758 767) no Hoare annotation was computed. [2021-12-22 12:21:09,302 INFO L854 garLoopResultBuilder]: At program point L758-3(lines 758 767) the Hoare annotation is: (and (= (mod ~__CS_ret~0 256) 0) (= ~__CS_ret_PREEMPTED~0 1) (= ~__CS_error~0 0) (= (select ~__CS_thread~0.offset 2) 0)) [2021-12-22 12:21:09,302 INFO L858 garLoopResultBuilder]: For program point L758-4(lines 758 767) no Hoare annotation was computed. [2021-12-22 12:21:09,302 INFO L858 garLoopResultBuilder]: For program point L750(lines 750 813) no Hoare annotation was computed. [2021-12-22 12:21:09,303 INFO L858 garLoopResultBuilder]: For program point L808(line 808) no Hoare annotation was computed. [2021-12-22 12:21:09,303 INFO L858 garLoopResultBuilder]: For program point L808-2(line 808) no Hoare annotation was computed. [2021-12-22 12:21:09,303 INFO L858 garLoopResultBuilder]: For program point L800(line 800) no Hoare annotation was computed. [2021-12-22 12:21:09,303 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-22 12:21:09,303 INFO L858 garLoopResultBuilder]: For program point L536(line 536) no Hoare annotation was computed. [2021-12-22 12:21:09,303 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 536) no Hoare annotation was computed. [2021-12-22 12:21:09,303 INFO L858 garLoopResultBuilder]: For program point L759-2(lines 759 762) no Hoare annotation was computed. [2021-12-22 12:21:09,303 INFO L854 garLoopResultBuilder]: At program point L759-3(lines 759 762) the Hoare annotation is: (and (= (mod ~__CS_ret~0 256) 0) (= ~__CS_ret_PREEMPTED~0 1) (= ~__CS_error~0 0) (<= |ULTIMATE.start_main_~i~0#1| 1) (= (select ~__CS_thread~0.offset 2) 0)) [2021-12-22 12:21:09,304 INFO L858 garLoopResultBuilder]: For program point L759-4(lines 759 762) no Hoare annotation was computed. [2021-12-22 12:21:09,304 INFO L858 garLoopResultBuilder]: For program point L784(lines 784 789) no Hoare annotation was computed. [2021-12-22 12:21:09,304 INFO L858 garLoopResultBuilder]: For program point L784-1(lines 784 789) no Hoare annotation was computed. [2021-12-22 12:21:09,304 INFO L858 garLoopResultBuilder]: For program point L809(line 809) no Hoare annotation was computed. [2021-12-22 12:21:09,304 INFO L858 garLoopResultBuilder]: For program point L809-2(line 809) no Hoare annotation was computed. [2021-12-22 12:21:09,304 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-22 12:21:09,304 INFO L854 garLoopResultBuilder]: At program point L793(line 793) the Hoare annotation is: (and (= (mod ~__CS_ret~0 256) 0) (= ~__CS_ret_PREEMPTED~0 1)) [2021-12-22 12:21:09,304 INFO L858 garLoopResultBuilder]: For program point L793-1(line 793) no Hoare annotation was computed. [2021-12-22 12:21:09,304 INFO L858 garLoopResultBuilder]: For program point L810(line 810) no Hoare annotation was computed. [2021-12-22 12:21:09,304 INFO L858 garLoopResultBuilder]: For program point L810-2(line 810) no Hoare annotation was computed. [2021-12-22 12:21:09,304 INFO L858 garLoopResultBuilder]: For program point L802(line 802) no Hoare annotation was computed. [2021-12-22 12:21:09,304 INFO L858 garLoopResultBuilder]: For program point L802-2(line 802) no Hoare annotation was computed. [2021-12-22 12:21:09,305 INFO L858 garLoopResultBuilder]: For program point L794(line 794) no Hoare annotation was computed. [2021-12-22 12:21:09,305 INFO L858 garLoopResultBuilder]: For program point L811(line 811) no Hoare annotation was computed. [2021-12-22 12:21:09,305 INFO L858 garLoopResultBuilder]: For program point L811-2(line 811) no Hoare annotation was computed. [2021-12-22 12:21:09,305 INFO L858 garLoopResultBuilder]: For program point L803(line 803) no Hoare annotation was computed. [2021-12-22 12:21:09,305 INFO L858 garLoopResultBuilder]: For program point L563(line 563) no Hoare annotation was computed. [2021-12-22 12:21:09,305 INFO L858 garLoopResultBuilder]: For program point L561(line 561) no Hoare annotation was computed. [2021-12-22 12:21:09,305 INFO L858 garLoopResultBuilder]: For program point L563-2(line 563) no Hoare annotation was computed. [2021-12-22 12:21:09,305 INFO L858 garLoopResultBuilder]: For program point L561-2(line 561) no Hoare annotation was computed. [2021-12-22 12:21:09,305 INFO L858 garLoopResultBuilder]: For program point __CS_csEXIT(lines 558 564) no Hoare annotation was computed. [2021-12-22 12:21:09,305 INFO L854 garLoopResultBuilder]: At program point __CS_csENTRY(lines 558 564) the Hoare annotation is: (or (not (= ~__CS_ret_PREEMPTED~0 1)) (and (= |old(~__CS_round~0)| ~__CS_round~0) (= |old(~__CS_ret~0)| ~__CS_ret~0))) [2021-12-22 12:21:09,306 INFO L858 garLoopResultBuilder]: For program point __CS_csFINAL(lines 558 564) no Hoare annotation was computed. [2021-12-22 12:21:09,308 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2021-12-22 12:21:09,309 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-22 12:21:09,315 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~__CS_thread~0 : [int]$Pointer$; and expression ~__CS_thread~0.offset [2021-12-22 12:21:09,318 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~__CS_thread~0 : [int]$Pointer$; and expression ~__CS_thread~0.offset [2021-12-22 12:21:09,319 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~__CS_thread~0 : [int]$Pointer$; and expression ~__CS_thread~0.offset [2021-12-22 12:21:09,319 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~__CS_thread~0 : [int]$Pointer$; and expression ~__CS_thread~0.offset [2021-12-22 12:21:09,320 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~__CS_thread~0 : [int]$Pointer$; and expression ~__CS_thread~0.offset [2021-12-22 12:21:09,320 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~__CS_thread~0 : [int]$Pointer$; and expression ~__CS_thread~0.offset [2021-12-22 12:21:09,321 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~__CS_thread~0 : [int]$Pointer$; and expression ~__CS_thread~0.offset [2021-12-22 12:21:09,321 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~__CS_thread~0 : [int]$Pointer$; and expression ~__CS_thread~0.offset [2021-12-22 12:21:09,321 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~__CS_thread~0 : [int]$Pointer$; and expression ~__CS_thread~0.offset [2021-12-22 12:21:09,321 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~__CS_thread~0 : [int]$Pointer$; and expression ~__CS_thread~0.offset [2021-12-22 12:21:09,322 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~__CS_thread~0 : [int]$Pointer$; and expression ~__CS_thread~0.offset [2021-12-22 12:21:09,322 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~__CS_thread~0 : [int]$Pointer$; and expression ~__CS_thread~0.offset [2021-12-22 12:21:09,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 12:21:09 BoogieIcfgContainer [2021-12-22 12:21:09,322 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-22 12:21:09,323 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-22 12:21:09,323 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-22 12:21:09,323 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-22 12:21:09,323 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:20:32" (3/4) ... [2021-12-22 12:21:09,325 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-22 12:21:09,330 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __CS_pthread_join [2021-12-22 12:21:09,330 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __CS_pthread_mutex_lock [2021-12-22 12:21:09,330 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~TO~$Pointer$ [2021-12-22 12:21:09,330 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __CS_pthread_mutex_unlock [2021-12-22 12:21:09,330 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __CS_pthread_create [2021-12-22 12:21:09,330 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __CS_cs [2021-12-22 12:21:09,330 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __CS_pthread_mutex_init [2021-12-22 12:21:09,339 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 73 nodes and edges [2021-12-22 12:21:09,343 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-12-22 12:21:09,344 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-12-22 12:21:09,345 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-12-22 12:21:09,369 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(__CS_ret_PREEMPTED == 1) || !(\old(__CS_thread)[2] == 0)) || !(\old(__CS_ret) % 256 == 0)) || __CS_thread[2] == 0) && ((!(__CS_ret_PREEMPTED == 1) || !(#fp == 0)) || !(\old(__CS_ret) % 256 == 0)) [2021-12-22 12:21:09,369 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(__CS_ret_PREEMPTED == 1) || !(\old(__CS_thread)[2] == 0)) || !(\old(__CS_ret) % 256 == 0)) || __CS_thread[2] == 0 [2021-12-22 12:21:09,369 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(__CS_ret_PREEMPTED == 1) || !(#fp == 0)) || !(\old(__CS_ret) % 256 == 0) [2021-12-22 12:21:09,375 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(__CS_ret_PREEMPTED == 1) || (__CS_ret % 256 == 0 && !(#fp == 0))) || !(\old(__CS_ret) % 256 == 0) [2021-12-22 12:21:09,417 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-22 12:21:09,417 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-22 12:21:09,418 INFO L158 Benchmark]: Toolchain (without parser) took 40376.16ms. Allocated memory was 86.0MB in the beginning and 373.3MB in the end (delta: 287.3MB). Free memory was 54.1MB in the beginning and 191.6MB in the end (delta: -137.5MB). Peak memory consumption was 148.6MB. Max. memory is 16.1GB. [2021-12-22 12:21:09,418 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 86.0MB. Free memory was 44.6MB in the beginning and 44.5MB in the end (delta: 39.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 12:21:09,418 INFO L158 Benchmark]: CACSL2BoogieTranslator took 464.46ms. Allocated memory is still 86.0MB. Free memory was 53.9MB in the beginning and 47.6MB in the end (delta: 6.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-22 12:21:09,419 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.75ms. Allocated memory is still 86.0MB. Free memory was 47.6MB in the beginning and 43.5MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-22 12:21:09,419 INFO L158 Benchmark]: Boogie Preprocessor took 32.26ms. Allocated memory is still 86.0MB. Free memory was 43.5MB in the beginning and 39.7MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-22 12:21:09,419 INFO L158 Benchmark]: RCFGBuilder took 2826.92ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 39.7MB in the beginning and 75.2MB in the end (delta: -35.5MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. [2021-12-22 12:21:09,420 INFO L158 Benchmark]: TraceAbstraction took 36878.10ms. Allocated memory was 104.9MB in the beginning and 373.3MB in the end (delta: 268.4MB). Free memory was 75.2MB in the beginning and 203.1MB in the end (delta: -128.0MB). Peak memory consumption was 250.3MB. Max. memory is 16.1GB. [2021-12-22 12:21:09,420 INFO L158 Benchmark]: Witness Printer took 94.82ms. Allocated memory is still 373.3MB. Free memory was 203.1MB in the beginning and 191.6MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-22 12:21:09,421 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 86.0MB. Free memory was 44.6MB in the beginning and 44.5MB in the end (delta: 39.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 464.46ms. Allocated memory is still 86.0MB. Free memory was 53.9MB in the beginning and 47.6MB in the end (delta: 6.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.75ms. Allocated memory is still 86.0MB. Free memory was 47.6MB in the beginning and 43.5MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.26ms. Allocated memory is still 86.0MB. Free memory was 43.5MB in the beginning and 39.7MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 2826.92ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 39.7MB in the beginning and 75.2MB in the end (delta: -35.5MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. * TraceAbstraction took 36878.10ms. Allocated memory was 104.9MB in the beginning and 373.3MB in the end (delta: 268.4MB). Free memory was 75.2MB in the beginning and 203.1MB in the end (delta: -128.0MB). Peak memory consumption was 250.3MB. Max. memory is 16.1GB. * Witness Printer took 94.82ms. Allocated memory is still 373.3MB. Free memory was 203.1MB in the beginning and 191.6MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~__CS_thread~0 : [int]$Pointer$; and expression ~__CS_thread~0.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~__CS_thread~0 : [int]$Pointer$; and expression ~__CS_thread~0.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~__CS_thread~0 : [int]$Pointer$; and expression ~__CS_thread~0.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~__CS_thread~0 : [int]$Pointer$; and expression ~__CS_thread~0.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~__CS_thread~0 : [int]$Pointer$; and expression ~__CS_thread~0.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~__CS_thread~0 : [int]$Pointer$; and expression ~__CS_thread~0.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~__CS_thread~0 : [int]$Pointer$; and expression ~__CS_thread~0.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~__CS_thread~0 : [int]$Pointer$; and expression ~__CS_thread~0.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~__CS_thread~0 : [int]$Pointer$; and expression ~__CS_thread~0.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~__CS_thread~0 : [int]$Pointer$; and expression ~__CS_thread~0.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~__CS_thread~0 : [int]$Pointer$; and expression ~__CS_thread~0.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~__CS_thread~0 : [int]$Pointer$; and expression ~__CS_thread~0.offset * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 536]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 172 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 36.8s, OverallIterations: 7, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 17.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 7 mSolverCounterUnknown, 1697 SdHoareTripleChecker+Valid, 16.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1668 mSDsluCounter, 5902 SdHoareTripleChecker+Invalid, 16.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4056 mSDsCounter, 1001 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2717 IncrementalHoareTripleChecker+Invalid, 3725 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1001 mSolverCounterUnsat, 1846 mSDtfsCounter, 2717 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 641 GetRequests, 571 SyntacticMatches, 3 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=595occurred in iteration=6, InterpolantAutomatonStates: 55, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 53 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 56 LocationsWithAnnotation, 1913 PreInvPairs, 2957 NumberOfFragments, 2178 HoareAnnotationTreeSize, 1913 FomulaSimplifications, 2999 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 56 FomulaSimplificationsInter, 13728 FormulaSimplificationTreeSizeReductionInter, 2.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 10.6s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 758 NumberOfCodeBlocks, 748 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 992 ConstructedInterpolants, 0 QuantifiedInterpolants, 2409 SizeOfPredicates, 7 NumberOfNonLiveVariables, 7535 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 14 InterpolantComputations, 4 PerfectInterpolantSequences, 518/543 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 759]: Loop Invariant [2021-12-22 12:21:09,438 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~__CS_thread~0 : [int]$Pointer$; and expression ~__CS_thread~0.offset [2021-12-22 12:21:09,438 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~__CS_thread~0 : [int]$Pointer$; and expression ~__CS_thread~0.offset Derived loop invariant: (((__CS_ret % 256 == 0 && __CS_ret_PREEMPTED == 1) && __CS_error == 0) && i <= 1) && __CS_thread[2] == 0 - InvariantResult [Line: 701]: Loop Invariant [2021-12-22 12:21:09,439 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~__CS_thread~0 : [int]$Pointer$; and expression ~__CS_thread~0.offset [2021-12-22 12:21:09,439 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~__CS_thread~0 : [int]$Pointer$; and expression ~__CS_thread~0.offset [2021-12-22 12:21:09,441 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~__CS_thread~0 : [int]$Pointer$; and expression ~__CS_thread~0.offset [2021-12-22 12:21:09,443 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~__CS_thread~0 : [int]$Pointer$; and expression ~__CS_thread~0.offset Derived loop invariant: (((!(__CS_ret_PREEMPTED == 1) || !(\old(__CS_thread)[2] == 0)) || !(\old(__CS_ret) % 256 == 0)) || __CS_thread[2] == 0) && ((!(__CS_ret_PREEMPTED == 1) || !(#fp == 0)) || !(\old(__CS_ret) % 256 == 0)) - InvariantResult [Line: 739]: Loop Invariant Derived loop invariant: (!(__CS_ret_PREEMPTED == 1) || (__CS_ret % 256 == 0 && !(#fp == 0))) || !(\old(__CS_ret) % 256 == 0) - InvariantResult [Line: 717]: Loop Invariant Derived loop invariant: (!(__CS_ret_PREEMPTED == 1) || !(#fp == 0)) || !(\old(__CS_ret) % 256 == 0) - InvariantResult [Line: 534]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 758]: Loop Invariant [2021-12-22 12:21:09,444 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~__CS_thread~0 : [int]$Pointer$; and expression ~__CS_thread~0.offset [2021-12-22 12:21:09,444 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~__CS_thread~0 : [int]$Pointer$; and expression ~__CS_thread~0.offset Derived loop invariant: ((__CS_ret % 256 == 0 && __CS_ret_PREEMPTED == 1) && __CS_error == 0) && __CS_thread[2] == 0 - InvariantResult [Line: 685]: Loop Invariant [2021-12-22 12:21:09,444 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~__CS_thread~0 : [int]$Pointer$; and expression ~__CS_thread~0.offset [2021-12-22 12:21:09,445 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~__CS_thread~0 : [int]$Pointer$; and expression ~__CS_thread~0.offset [2021-12-22 12:21:09,445 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~__CS_thread~0 : [int]$Pointer$; and expression ~__CS_thread~0.offset [2021-12-22 12:21:09,445 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~__CS_thread~0 : [int]$Pointer$; and expression ~__CS_thread~0.offset Derived loop invariant: ((!(__CS_ret_PREEMPTED == 1) || !(\old(__CS_thread)[2] == 0)) || !(\old(__CS_ret) % 256 == 0)) || __CS_thread[2] == 0 RESULT: Ultimate proved your program to be correct! [2021-12-22 12:21:09,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE