./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix001.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 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/pthread-wmm/mix001.opt.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 21c0308f80ae5e3a4b410ebaece3730b9f788bd0cc89fb6ef65f8dd9f7120f36 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 15:00:51,207 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 15:00:51,209 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 15:00:51,286 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 15:00:51,288 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 15:00:51,289 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 15:00:51,291 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 15:00:51,295 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 15:00:51,296 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 15:00:51,297 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 15:00:51,298 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 15:00:51,299 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 15:00:51,299 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 15:00:51,300 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 15:00:51,301 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 15:00:51,302 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 15:00:51,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 15:00:51,303 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 15:00:51,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 15:00:51,306 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 15:00:51,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 15:00:51,313 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 15:00:51,314 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 15:00:51,315 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 15:00:51,318 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 15:00:51,319 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 15:00:51,322 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 15:00:51,323 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 15:00:51,323 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 15:00:51,324 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 15:00:51,324 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 15:00:51,325 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 15:00:51,325 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 15:00:51,326 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 15:00:51,327 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 15:00:51,327 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 15:00:51,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 15:00:51,328 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 15:00:51,328 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 15:00:51,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 15:00:51,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 15:00:51,330 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 15:00:51,350 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 15:00:51,350 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 15:00:51,351 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 15:00:51,351 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 15:00:51,351 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 15:00:51,352 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 15:00:51,352 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 15:00:51,352 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 15:00:51,352 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 15:00:51,353 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 15:00:51,353 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 15:00:51,353 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 15:00:51,353 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 15:00:51,353 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 15:00:51,353 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 15:00:51,354 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 15:00:51,354 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 15:00:51,354 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 15:00:51,354 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 15:00:51,354 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 15:00:51,355 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 15:00:51,355 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 15:00:51,355 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 15:00:51,355 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 15:00:51,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 15:00:51,356 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 15:00:51,356 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 15:00:51,357 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 15:00:51,358 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 15:00:51,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 15:00:51,358 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 15:00:51,358 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 15:00:51,359 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 15:00:51,359 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 15:00:51,359 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 21c0308f80ae5e3a4b410ebaece3730b9f788bd0cc89fb6ef65f8dd9f7120f36 [2021-12-21 15:00:51,555 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 15:00:51,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 15:00:51,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 15:00:51,576 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 15:00:51,577 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 15:00:51,578 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix001.opt.i [2021-12-21 15:00:51,628 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5b059608/d09c56400b044aa69cb76dcc886887a7/FLAG55b5a061e [2021-12-21 15:00:52,035 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 15:00:52,035 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix001.opt.i [2021-12-21 15:00:52,059 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5b059608/d09c56400b044aa69cb76dcc886887a7/FLAG55b5a061e [2021-12-21 15:00:52,069 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5b059608/d09c56400b044aa69cb76dcc886887a7 [2021-12-21 15:00:52,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 15:00:52,072 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 15:00:52,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 15:00:52,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 15:00:52,079 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 15:00:52,080 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 03:00:52" (1/1) ... [2021-12-21 15:00:52,080 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@213606a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:00:52, skipping insertion in model container [2021-12-21 15:00:52,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 03:00:52" (1/1) ... [2021-12-21 15:00:52,085 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 15:00:52,117 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 15:00:52,286 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/pthread-wmm/mix001.opt.i[944,957] [2021-12-21 15:00:52,465 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 15:00:52,476 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 15:00:52,486 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/pthread-wmm/mix001.opt.i[944,957] [2021-12-21 15:00:52,548 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 15:00:52,580 INFO L208 MainTranslator]: Completed translation [2021-12-21 15:00:52,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:00:52 WrapperNode [2021-12-21 15:00:52,581 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 15:00:52,582 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 15:00:52,582 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 15:00:52,582 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 15:00:52,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:00:52" (1/1) ... [2021-12-21 15:00:52,622 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:00:52" (1/1) ... [2021-12-21 15:00:52,651 INFO L137 Inliner]: procedures = 176, calls = 60, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 282 [2021-12-21 15:00:52,652 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 15:00:52,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 15:00:52,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 15:00:52,653 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 15:00:52,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:00:52" (1/1) ... [2021-12-21 15:00:52,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:00:52" (1/1) ... [2021-12-21 15:00:52,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:00:52" (1/1) ... [2021-12-21 15:00:52,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:00:52" (1/1) ... [2021-12-21 15:00:52,682 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:00:52" (1/1) ... [2021-12-21 15:00:52,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:00:52" (1/1) ... [2021-12-21 15:00:52,707 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:00:52" (1/1) ... [2021-12-21 15:00:52,710 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 15:00:52,711 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 15:00:52,711 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 15:00:52,711 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 15:00:52,712 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:00:52" (1/1) ... [2021-12-21 15:00:52,722 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 15:00:52,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:00:52,744 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) [2021-12-21 15:00:52,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 15:00:52,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-21 15:00:52,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 15:00:52,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 15:00:52,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 15:00:52,770 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-12-21 15:00:52,770 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-12-21 15:00:52,770 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-12-21 15:00:52,770 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-12-21 15:00:52,771 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-12-21 15:00:52,771 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-12-21 15:00:52,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 15:00:52,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-21 15:00:52,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 15:00:52,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 15:00:52,750 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 [2021-12-21 15:00:52,773 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-21 15:00:52,889 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 15:00:52,890 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 15:00:53,347 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 15:00:53,619 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 15:00:53,619 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-21 15:00:53,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 03:00:53 BoogieIcfgContainer [2021-12-21 15:00:53,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 15:00:53,636 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 15:00:53,636 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 15:00:53,640 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 15:00:53,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 03:00:52" (1/3) ... [2021-12-21 15:00:53,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a8a7c6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 03:00:53, skipping insertion in model container [2021-12-21 15:00:53,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:00:52" (2/3) ... [2021-12-21 15:00:53,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a8a7c6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 03:00:53, skipping insertion in model container [2021-12-21 15:00:53,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 03:00:53" (3/3) ... [2021-12-21 15:00:53,644 INFO L111 eAbstractionObserver]: Analyzing ICFG mix001.opt.i [2021-12-21 15:00:53,648 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-21 15:00:53,648 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 15:00:53,649 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-21 15:00:53,649 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-21 15:00:53,690 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,690 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,690 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,690 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,691 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,691 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,691 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,691 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,691 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,692 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,692 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,692 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,693 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,693 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,693 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,693 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,693 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,694 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,694 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,694 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,694 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,695 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,696 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,696 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,696 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,696 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,696 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,697 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,697 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,697 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,697 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,697 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,697 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,697 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,697 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,697 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,698 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,698 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,698 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,698 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,698 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,698 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,698 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,698 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,699 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,699 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,699 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,699 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,699 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,699 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,700 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,700 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,700 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,700 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,700 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,700 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,700 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,700 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,702 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,702 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,703 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,703 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,703 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,703 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,704 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,704 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,704 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,704 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,704 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,704 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,704 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,705 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,705 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,705 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,705 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,705 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,705 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,705 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,706 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,706 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,708 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,708 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,708 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,709 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,710 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,710 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,710 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,710 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,710 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,717 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,717 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,717 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,717 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,717 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,717 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,717 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,719 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,720 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,720 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,720 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,720 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,720 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,721 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,721 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,721 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,721 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,721 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,721 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,721 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,721 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,722 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,722 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,722 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,722 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,722 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,722 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,723 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,723 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,723 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,723 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,723 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,723 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,723 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite40#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,724 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,724 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,724 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,724 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,724 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,724 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,724 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,724 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,724 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,725 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,725 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,725 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,725 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,725 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,725 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,725 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,725 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,726 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,726 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,726 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite47#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,726 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite48#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,726 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,726 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite44#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,726 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,726 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,727 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite40#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,727 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,727 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,727 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,727 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,728 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,730 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,730 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,730 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,730 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,731 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,731 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,731 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite40#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,731 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,731 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,731 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,731 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,731 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,731 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,732 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,732 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,732 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,732 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,732 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,732 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,732 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,732 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,732 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,733 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,733 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,733 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,733 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,733 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite47#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,733 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite48#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,733 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,733 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite44#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,733 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,734 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,734 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite40#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,734 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,734 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,734 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,734 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,734 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,736 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,736 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite50#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,736 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite52#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,736 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite53#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,736 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite51#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,737 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite54#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,737 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,737 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,737 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite50#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,737 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite52#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,737 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite53#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,738 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite51#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,738 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite54#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,738 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,739 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,741 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,741 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,741 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,745 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,745 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,746 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,746 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,746 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,746 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,747 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,747 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,747 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,747 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,747 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,748 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,748 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,748 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,748 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,748 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,748 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,753 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,753 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,753 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,753 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,753 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,753 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,753 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,754 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,754 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,754 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,755 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite52#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,755 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,755 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite44#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,755 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,755 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,755 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,756 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite51#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,756 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,756 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,756 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,756 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,756 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,756 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite50#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,756 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,757 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,757 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,757 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,757 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite54#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,757 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,757 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,757 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,758 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,758 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,758 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite47#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,758 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,758 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,758 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite40#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,758 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite53#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,758 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,759 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,759 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,759 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite48#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,759 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,759 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,759 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,760 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,760 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,760 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,760 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:00:53,761 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-12-21 15:00:53,806 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 15:00:53,812 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 [2021-12-21 15:00:53,812 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-12-21 15:00:53,821 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 128 places, 120 transitions, 255 flow [2021-12-21 15:00:53,866 INFO L129 PetriNetUnfolder]: 2/117 cut-off events. [2021-12-21 15:00:53,866 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-21 15:00:53,869 INFO L84 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 117 events. 2/117 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2021-12-21 15:00:53,869 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 120 transitions, 255 flow [2021-12-21 15:00:53,873 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 125 places, 117 transitions, 243 flow [2021-12-21 15:00:53,893 INFO L129 PetriNetUnfolder]: 0/79 cut-off events. [2021-12-21 15:00:53,894 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-21 15:00:53,894 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:00:53,895 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:00:53,895 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-21 15:00:53,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:00:53,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1182076203, now seen corresponding path program 1 times [2021-12-21 15:00:53,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:00:53,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481124416] [2021-12-21 15:00:53,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:00:53,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:00:54,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:00:54,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:00:54,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:00:54,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481124416] [2021-12-21 15:00:54,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481124416] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:00:54,169 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:00:54,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 15:00:54,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84408906] [2021-12-21 15:00:54,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:00:54,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 15:00:54,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:00:54,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 15:00:54,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 15:00:54,205 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 120 [2021-12-21 15:00:54,209 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 117 transitions, 243 flow. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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) [2021-12-21 15:00:54,210 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:00:54,210 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 120 [2021-12-21 15:00:54,211 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:00:54,337 INFO L129 PetriNetUnfolder]: 14/194 cut-off events. [2021-12-21 15:00:54,337 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-12-21 15:00:54,338 INFO L84 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 194 events. 14/194 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 438 event pairs, 6 based on Foata normal form. 6/189 useless extension candidates. Maximal degree in co-relation 185. Up to 25 conditions per place. [2021-12-21 15:00:54,340 INFO L132 encePairwiseOnDemand]: 115/120 looper letters, 9 selfloop transitions, 2 changer transitions 0/115 dead transitions. [2021-12-21 15:00:54,340 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 115 transitions, 261 flow [2021-12-21 15:00:54,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 15:00:54,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-21 15:00:54,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 337 transitions. [2021-12-21 15:00:54,356 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9361111111111111 [2021-12-21 15:00:54,356 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 337 transitions. [2021-12-21 15:00:54,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 337 transitions. [2021-12-21 15:00:54,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:00:54,359 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 337 transitions. [2021-12-21 15:00:54,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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) [2021-12-21 15:00:54,368 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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) [2021-12-21 15:00:54,368 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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) [2021-12-21 15:00:54,370 INFO L186 Difference]: Start difference. First operand has 125 places, 117 transitions, 243 flow. Second operand 3 states and 337 transitions. [2021-12-21 15:00:54,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 115 transitions, 261 flow [2021-12-21 15:00:54,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 115 transitions, 258 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-12-21 15:00:54,374 INFO L242 Difference]: Finished difference. Result has 122 places, 113 transitions, 236 flow [2021-12-21 15:00:54,376 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=236, PETRI_PLACES=122, PETRI_TRANSITIONS=113} [2021-12-21 15:00:54,378 INFO L334 CegarLoopForPetriNet]: 125 programPoint places, -3 predicate places. [2021-12-21 15:00:54,378 INFO L470 AbstractCegarLoop]: Abstraction has has 122 places, 113 transitions, 236 flow [2021-12-21 15:00:54,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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) [2021-12-21 15:00:54,379 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:00:54,379 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:00:54,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 15:00:54,379 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-21 15:00:54,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:00:54,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1278907714, now seen corresponding path program 1 times [2021-12-21 15:00:54,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:00:54,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148377229] [2021-12-21 15:00:54,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:00:54,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:00:54,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:00:54,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:00:54,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:00:54,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148377229] [2021-12-21 15:00:54,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148377229] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:00:54,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:00:54,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 15:00:54,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210214158] [2021-12-21 15:00:54,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:00:54,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 15:00:54,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:00:54,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 15:00:54,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-21 15:00:54,614 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 120 [2021-12-21 15:00:54,615 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 113 transitions, 236 flow. Second operand has 7 states, 7 states have (on average 93.28571428571429) internal successors, (653), 7 states have internal predecessors, (653), 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) [2021-12-21 15:00:54,615 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:00:54,615 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 120 [2021-12-21 15:00:54,616 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:00:55,141 INFO L129 PetriNetUnfolder]: 966/2623 cut-off events. [2021-12-21 15:00:55,141 INFO L130 PetriNetUnfolder]: For 99/99 co-relation queries the response was YES. [2021-12-21 15:00:55,148 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4232 conditions, 2623 events. 966/2623 cut-off events. For 99/99 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 20257 event pairs, 122 based on Foata normal form. 0/2556 useless extension candidates. Maximal degree in co-relation 4171. Up to 733 conditions per place. [2021-12-21 15:00:55,155 INFO L132 encePairwiseOnDemand]: 114/120 looper letters, 31 selfloop transitions, 2 changer transitions 63/173 dead transitions. [2021-12-21 15:00:55,156 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 173 transitions, 544 flow [2021-12-21 15:00:55,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-21 15:00:55,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-21 15:00:55,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 906 transitions. [2021-12-21 15:00:55,161 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8388888888888889 [2021-12-21 15:00:55,161 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 906 transitions. [2021-12-21 15:00:55,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 906 transitions. [2021-12-21 15:00:55,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:00:55,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 906 transitions. [2021-12-21 15:00:55,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 100.66666666666667) internal successors, (906), 9 states have internal predecessors, (906), 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) [2021-12-21 15:00:55,167 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 120.0) internal successors, (1200), 10 states have internal predecessors, (1200), 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) [2021-12-21 15:00:55,167 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 120.0) internal successors, (1200), 10 states have internal predecessors, (1200), 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) [2021-12-21 15:00:55,168 INFO L186 Difference]: Start difference. First operand has 122 places, 113 transitions, 236 flow. Second operand 9 states and 906 transitions. [2021-12-21 15:00:55,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 173 transitions, 544 flow [2021-12-21 15:00:55,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 173 transitions, 526 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-21 15:00:55,172 INFO L242 Difference]: Finished difference. Result has 135 places, 101 transitions, 228 flow [2021-12-21 15:00:55,173 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=228, PETRI_PLACES=135, PETRI_TRANSITIONS=101} [2021-12-21 15:00:55,173 INFO L334 CegarLoopForPetriNet]: 125 programPoint places, 10 predicate places. [2021-12-21 15:00:55,173 INFO L470 AbstractCegarLoop]: Abstraction has has 135 places, 101 transitions, 228 flow [2021-12-21 15:00:55,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 93.28571428571429) internal successors, (653), 7 states have internal predecessors, (653), 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) [2021-12-21 15:00:55,174 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:00:55,174 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:00:55,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 15:00:55,177 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-21 15:00:55,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:00:55,177 INFO L85 PathProgramCache]: Analyzing trace with hash -313212350, now seen corresponding path program 1 times [2021-12-21 15:00:55,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:00:55,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211338280] [2021-12-21 15:00:55,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:00:55,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:00:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:00:55,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:00:55,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:00:55,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211338280] [2021-12-21 15:00:55,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211338280] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:00:55,337 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:00:55,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 15:00:55,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685763046] [2021-12-21 15:00:55,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:00:55,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 15:00:55,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:00:55,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 15:00:55,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-21 15:00:55,340 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 120 [2021-12-21 15:00:55,341 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 101 transitions, 228 flow. Second operand has 7 states, 7 states have (on average 93.42857142857143) internal successors, (654), 7 states have internal predecessors, (654), 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) [2021-12-21 15:00:55,341 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:00:55,341 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 120 [2021-12-21 15:00:55,341 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:00:55,623 INFO L129 PetriNetUnfolder]: 545/1158 cut-off events. [2021-12-21 15:00:55,623 INFO L130 PetriNetUnfolder]: For 378/378 co-relation queries the response was YES. [2021-12-21 15:00:55,626 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2385 conditions, 1158 events. 545/1158 cut-off events. For 378/378 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 6304 event pairs, 123 based on Foata normal form. 30/1149 useless extension candidates. Maximal degree in co-relation 2317. Up to 411 conditions per place. [2021-12-21 15:00:55,630 INFO L132 encePairwiseOnDemand]: 110/120 looper letters, 23 selfloop transitions, 6 changer transitions 37/143 dead transitions. [2021-12-21 15:00:55,630 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 143 transitions, 465 flow [2021-12-21 15:00:55,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-21 15:00:55,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-21 15:00:55,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 978 transitions. [2021-12-21 15:00:55,633 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.815 [2021-12-21 15:00:55,633 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 978 transitions. [2021-12-21 15:00:55,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 978 transitions. [2021-12-21 15:00:55,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:00:55,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 978 transitions. [2021-12-21 15:00:55,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 97.8) internal successors, (978), 10 states have internal predecessors, (978), 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) [2021-12-21 15:00:55,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 120.0) internal successors, (1320), 11 states have internal predecessors, (1320), 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) [2021-12-21 15:00:55,637 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 120.0) internal successors, (1320), 11 states have internal predecessors, (1320), 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) [2021-12-21 15:00:55,637 INFO L186 Difference]: Start difference. First operand has 135 places, 101 transitions, 228 flow. Second operand 10 states and 978 transitions. [2021-12-21 15:00:55,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 143 transitions, 465 flow [2021-12-21 15:00:55,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 143 transitions, 431 flow, removed 14 selfloop flow, removed 8 redundant places. [2021-12-21 15:00:55,643 INFO L242 Difference]: Finished difference. Result has 125 places, 101 transitions, 240 flow [2021-12-21 15:00:55,643 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=240, PETRI_PLACES=125, PETRI_TRANSITIONS=101} [2021-12-21 15:00:55,644 INFO L334 CegarLoopForPetriNet]: 125 programPoint places, 0 predicate places. [2021-12-21 15:00:55,644 INFO L470 AbstractCegarLoop]: Abstraction has has 125 places, 101 transitions, 240 flow [2021-12-21 15:00:55,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 93.42857142857143) internal successors, (654), 7 states have internal predecessors, (654), 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) [2021-12-21 15:00:55,645 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:00:55,645 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:00:55,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 15:00:55,645 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-21 15:00:55,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:00:55,646 INFO L85 PathProgramCache]: Analyzing trace with hash 219300252, now seen corresponding path program 1 times [2021-12-21 15:00:55,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:00:55,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581436818] [2021-12-21 15:00:55,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:00:55,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:00:55,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:00:55,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:00:55,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:00:55,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581436818] [2021-12-21 15:00:55,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581436818] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:00:55,798 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:00:55,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 15:00:55,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756169843] [2021-12-21 15:00:55,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:00:55,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 15:00:55,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:00:55,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 15:00:55,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-21 15:00:55,801 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 120 [2021-12-21 15:00:55,801 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 101 transitions, 240 flow. Second operand has 7 states, 7 states have (on average 93.71428571428571) internal successors, (656), 7 states have internal predecessors, (656), 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) [2021-12-21 15:00:55,801 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:00:55,802 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 120 [2021-12-21 15:00:55,802 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:00:56,032 INFO L129 PetriNetUnfolder]: 382/875 cut-off events. [2021-12-21 15:00:56,033 INFO L130 PetriNetUnfolder]: For 200/200 co-relation queries the response was YES. [2021-12-21 15:00:56,035 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1790 conditions, 875 events. 382/875 cut-off events. For 200/200 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 4247 event pairs, 158 based on Foata normal form. 18/839 useless extension candidates. Maximal degree in co-relation 1717. Up to 356 conditions per place. [2021-12-21 15:00:56,038 INFO L132 encePairwiseOnDemand]: 112/120 looper letters, 28 selfloop transitions, 4 changer transitions 31/140 dead transitions. [2021-12-21 15:00:56,038 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 140 transitions, 470 flow [2021-12-21 15:00:56,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-21 15:00:56,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-21 15:00:56,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 975 transitions. [2021-12-21 15:00:56,041 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8125 [2021-12-21 15:00:56,041 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 975 transitions. [2021-12-21 15:00:56,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 975 transitions. [2021-12-21 15:00:56,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:00:56,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 975 transitions. [2021-12-21 15:00:56,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 97.5) internal successors, (975), 10 states have internal predecessors, (975), 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) [2021-12-21 15:00:56,045 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 120.0) internal successors, (1320), 11 states have internal predecessors, (1320), 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) [2021-12-21 15:00:56,046 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 120.0) internal successors, (1320), 11 states have internal predecessors, (1320), 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) [2021-12-21 15:00:56,046 INFO L186 Difference]: Start difference. First operand has 125 places, 101 transitions, 240 flow. Second operand 10 states and 975 transitions. [2021-12-21 15:00:56,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 140 transitions, 470 flow [2021-12-21 15:00:56,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 140 transitions, 428 flow, removed 14 selfloop flow, removed 9 redundant places. [2021-12-21 15:00:56,052 INFO L242 Difference]: Finished difference. Result has 126 places, 101 transitions, 240 flow [2021-12-21 15:00:56,052 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=240, PETRI_PLACES=126, PETRI_TRANSITIONS=101} [2021-12-21 15:00:56,053 INFO L334 CegarLoopForPetriNet]: 125 programPoint places, 1 predicate places. [2021-12-21 15:00:56,053 INFO L470 AbstractCegarLoop]: Abstraction has has 126 places, 101 transitions, 240 flow [2021-12-21 15:00:56,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 93.71428571428571) internal successors, (656), 7 states have internal predecessors, (656), 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) [2021-12-21 15:00:56,054 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:00:56,054 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:00:56,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 15:00:56,055 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-21 15:00:56,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:00:56,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1403484829, now seen corresponding path program 1 times [2021-12-21 15:00:56,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:00:56,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395348674] [2021-12-21 15:00:56,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:00:56,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:00:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:00:56,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:00:56,199 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:00:56,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395348674] [2021-12-21 15:00:56,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395348674] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:00:56,199 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:00:56,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 15:00:56,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485572551] [2021-12-21 15:00:56,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:00:56,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 15:00:56,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:00:56,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 15:00:56,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 15:00:56,200 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 120 [2021-12-21 15:00:56,201 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 101 transitions, 240 flow. Second operand has 6 states, 6 states have (on average 99.16666666666667) internal successors, (595), 6 states have internal predecessors, (595), 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) [2021-12-21 15:00:56,201 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:00:56,201 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 120 [2021-12-21 15:00:56,201 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:00:56,464 INFO L129 PetriNetUnfolder]: 556/1214 cut-off events. [2021-12-21 15:00:56,464 INFO L130 PetriNetUnfolder]: For 85/85 co-relation queries the response was YES. [2021-12-21 15:00:56,468 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2342 conditions, 1214 events. 556/1214 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 7789 event pairs, 25 based on Foata normal form. 0/1186 useless extension candidates. Maximal degree in co-relation 2275. Up to 343 conditions per place. [2021-12-21 15:00:56,492 INFO L132 encePairwiseOnDemand]: 110/120 looper letters, 28 selfloop transitions, 6 changer transitions 45/161 dead transitions. [2021-12-21 15:00:56,492 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 161 transitions, 529 flow [2021-12-21 15:00:56,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-21 15:00:56,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-21 15:00:56,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1051 transitions. [2021-12-21 15:00:56,496 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8758333333333334 [2021-12-21 15:00:56,496 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1051 transitions. [2021-12-21 15:00:56,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1051 transitions. [2021-12-21 15:00:56,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:00:56,496 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1051 transitions. [2021-12-21 15:00:56,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 105.1) internal successors, (1051), 10 states have internal predecessors, (1051), 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) [2021-12-21 15:00:56,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 120.0) internal successors, (1320), 11 states have internal predecessors, (1320), 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) [2021-12-21 15:00:56,500 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 120.0) internal successors, (1320), 11 states have internal predecessors, (1320), 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) [2021-12-21 15:00:56,500 INFO L186 Difference]: Start difference. First operand has 126 places, 101 transitions, 240 flow. Second operand 10 states and 1051 transitions. [2021-12-21 15:00:56,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 161 transitions, 529 flow [2021-12-21 15:00:56,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 161 transitions, 509 flow, removed 6 selfloop flow, removed 9 redundant places. [2021-12-21 15:00:56,502 INFO L242 Difference]: Finished difference. Result has 126 places, 103 transitions, 274 flow [2021-12-21 15:00:56,503 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=274, PETRI_PLACES=126, PETRI_TRANSITIONS=103} [2021-12-21 15:00:56,504 INFO L334 CegarLoopForPetriNet]: 125 programPoint places, 1 predicate places. [2021-12-21 15:00:56,505 INFO L470 AbstractCegarLoop]: Abstraction has has 126 places, 103 transitions, 274 flow [2021-12-21 15:00:56,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 99.16666666666667) internal successors, (595), 6 states have internal predecessors, (595), 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) [2021-12-21 15:00:56,505 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:00:56,505 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:00:56,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 15:00:56,505 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-21 15:00:56,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:00:56,505 INFO L85 PathProgramCache]: Analyzing trace with hash 106032414, now seen corresponding path program 1 times [2021-12-21 15:00:56,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:00:56,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881798921] [2021-12-21 15:00:56,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:00:56,506 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:00:56,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:00:56,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:00:56,608 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:00:56,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881798921] [2021-12-21 15:00:56,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881798921] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:00:56,609 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:00:56,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 15:00:56,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131515100] [2021-12-21 15:00:56,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:00:56,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 15:00:56,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:00:56,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 15:00:56,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-21 15:00:56,610 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 120 [2021-12-21 15:00:56,611 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 103 transitions, 274 flow. Second operand has 7 states, 7 states have (on average 99.0) internal successors, (693), 7 states have internal predecessors, (693), 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) [2021-12-21 15:00:56,611 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:00:56,611 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 120 [2021-12-21 15:00:56,611 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:00:56,820 INFO L129 PetriNetUnfolder]: 212/616 cut-off events. [2021-12-21 15:00:56,820 INFO L130 PetriNetUnfolder]: For 609/617 co-relation queries the response was YES. [2021-12-21 15:00:56,821 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1615 conditions, 616 events. 212/616 cut-off events. For 609/617 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3389 event pairs, 4 based on Foata normal form. 22/636 useless extension candidates. Maximal degree in co-relation 1549. Up to 154 conditions per place. [2021-12-21 15:00:56,823 INFO L132 encePairwiseOnDemand]: 111/120 looper letters, 33 selfloop transitions, 9 changer transitions 35/159 dead transitions. [2021-12-21 15:00:56,823 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 159 transitions, 680 flow [2021-12-21 15:00:56,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-21 15:00:56,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-21 15:00:56,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1049 transitions. [2021-12-21 15:00:56,825 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8741666666666666 [2021-12-21 15:00:56,826 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1049 transitions. [2021-12-21 15:00:56,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1049 transitions. [2021-12-21 15:00:56,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:00:56,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1049 transitions. [2021-12-21 15:00:56,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 104.9) internal successors, (1049), 10 states have internal predecessors, (1049), 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) [2021-12-21 15:00:56,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 120.0) internal successors, (1320), 11 states have internal predecessors, (1320), 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) [2021-12-21 15:00:56,831 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 120.0) internal successors, (1320), 11 states have internal predecessors, (1320), 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) [2021-12-21 15:00:56,831 INFO L186 Difference]: Start difference. First operand has 126 places, 103 transitions, 274 flow. Second operand 10 states and 1049 transitions. [2021-12-21 15:00:56,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 159 transitions, 680 flow [2021-12-21 15:00:56,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 159 transitions, 656 flow, removed 7 selfloop flow, removed 5 redundant places. [2021-12-21 15:00:56,836 INFO L242 Difference]: Finished difference. Result has 130 places, 106 transitions, 342 flow [2021-12-21 15:00:56,837 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=342, PETRI_PLACES=130, PETRI_TRANSITIONS=106} [2021-12-21 15:00:56,837 INFO L334 CegarLoopForPetriNet]: 125 programPoint places, 5 predicate places. [2021-12-21 15:00:56,837 INFO L470 AbstractCegarLoop]: Abstraction has has 130 places, 106 transitions, 342 flow [2021-12-21 15:00:56,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 99.0) internal successors, (693), 7 states have internal predecessors, (693), 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) [2021-12-21 15:00:56,838 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:00:56,838 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:00:56,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-21 15:00:56,838 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-21 15:00:56,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:00:56,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1936956571, now seen corresponding path program 1 times [2021-12-21 15:00:56,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:00:56,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480912855] [2021-12-21 15:00:56,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:00:56,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:00:56,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:00:56,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:00:56,998 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:00:56,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480912855] [2021-12-21 15:00:56,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480912855] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:00:56,998 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:00:56,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-21 15:00:56,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467526325] [2021-12-21 15:00:56,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:00:56,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-21 15:00:56,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:00:56,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-21 15:00:56,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-21 15:00:57,000 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 120 [2021-12-21 15:00:57,001 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 106 transitions, 342 flow. Second operand has 8 states, 8 states have (on average 92.0) internal successors, (736), 8 states have internal predecessors, (736), 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) [2021-12-21 15:00:57,001 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:00:57,001 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 120 [2021-12-21 15:00:57,001 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:00:57,221 INFO L129 PetriNetUnfolder]: 187/739 cut-off events. [2021-12-21 15:00:57,221 INFO L130 PetriNetUnfolder]: For 869/919 co-relation queries the response was YES. [2021-12-21 15:00:57,224 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1848 conditions, 739 events. 187/739 cut-off events. For 869/919 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4144 event pairs, 30 based on Foata normal form. 17/737 useless extension candidates. Maximal degree in co-relation 1772. Up to 192 conditions per place. [2021-12-21 15:00:57,226 INFO L132 encePairwiseOnDemand]: 108/120 looper letters, 30 selfloop transitions, 8 changer transitions 21/139 dead transitions. [2021-12-21 15:00:57,226 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 139 transitions, 540 flow [2021-12-21 15:00:57,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 15:00:57,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-21 15:00:57,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 772 transitions. [2021-12-21 15:00:57,228 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8041666666666667 [2021-12-21 15:00:57,228 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 772 transitions. [2021-12-21 15:00:57,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 772 transitions. [2021-12-21 15:00:57,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:00:57,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 772 transitions. [2021-12-21 15:00:57,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 96.5) internal successors, (772), 8 states have internal predecessors, (772), 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) [2021-12-21 15:00:57,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 120.0) internal successors, (1080), 9 states have internal predecessors, (1080), 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) [2021-12-21 15:00:57,232 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 120.0) internal successors, (1080), 9 states have internal predecessors, (1080), 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) [2021-12-21 15:00:57,232 INFO L186 Difference]: Start difference. First operand has 130 places, 106 transitions, 342 flow. Second operand 8 states and 772 transitions. [2021-12-21 15:00:57,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 139 transitions, 540 flow [2021-12-21 15:00:57,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 139 transitions, 484 flow, removed 20 selfloop flow, removed 9 redundant places. [2021-12-21 15:00:57,237 INFO L242 Difference]: Finished difference. Result has 129 places, 107 transitions, 317 flow [2021-12-21 15:00:57,238 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=317, PETRI_PLACES=129, PETRI_TRANSITIONS=107} [2021-12-21 15:00:57,238 INFO L334 CegarLoopForPetriNet]: 125 programPoint places, 4 predicate places. [2021-12-21 15:00:57,238 INFO L470 AbstractCegarLoop]: Abstraction has has 129 places, 107 transitions, 317 flow [2021-12-21 15:00:57,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 92.0) internal successors, (736), 8 states have internal predecessors, (736), 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) [2021-12-21 15:00:57,239 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:00:57,239 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:00:57,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-21 15:00:57,239 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-21 15:00:57,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:00:57,240 INFO L85 PathProgramCache]: Analyzing trace with hash 419989755, now seen corresponding path program 2 times [2021-12-21 15:00:57,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:00:57,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506682144] [2021-12-21 15:00:57,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:00:57,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:00:57,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:00:57,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:00:57,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:00:57,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506682144] [2021-12-21 15:00:57,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506682144] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:00:57,358 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:00:57,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-21 15:00:57,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161493695] [2021-12-21 15:00:57,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:00:57,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-21 15:00:57,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:00:57,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-21 15:00:57,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-21 15:00:57,360 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 120 [2021-12-21 15:00:57,360 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 107 transitions, 317 flow. Second operand has 8 states, 8 states have (on average 99.0) internal successors, (792), 8 states have internal predecessors, (792), 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) [2021-12-21 15:00:57,360 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:00:57,360 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 120 [2021-12-21 15:00:57,361 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:00:57,606 INFO L129 PetriNetUnfolder]: 129/470 cut-off events. [2021-12-21 15:00:57,606 INFO L130 PetriNetUnfolder]: For 370/378 co-relation queries the response was YES. [2021-12-21 15:00:57,608 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1139 conditions, 470 events. 129/470 cut-off events. For 370/378 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2355 event pairs, 12 based on Foata normal form. 21/477 useless extension candidates. Maximal degree in co-relation 1121. Up to 83 conditions per place. [2021-12-21 15:00:57,609 INFO L132 encePairwiseOnDemand]: 111/120 looper letters, 23 selfloop transitions, 12 changer transitions 22/139 dead transitions. [2021-12-21 15:00:57,609 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 139 transitions, 564 flow [2021-12-21 15:00:57,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-21 15:00:57,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-21 15:00:57,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1125 transitions. [2021-12-21 15:00:57,612 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8522727272727273 [2021-12-21 15:00:57,612 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1125 transitions. [2021-12-21 15:00:57,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1125 transitions. [2021-12-21 15:00:57,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:00:57,613 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1125 transitions. [2021-12-21 15:00:57,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 102.27272727272727) internal successors, (1125), 11 states have internal predecessors, (1125), 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) [2021-12-21 15:00:57,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 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) [2021-12-21 15:00:57,617 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 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) [2021-12-21 15:00:57,617 INFO L186 Difference]: Start difference. First operand has 129 places, 107 transitions, 317 flow. Second operand 11 states and 1125 transitions. [2021-12-21 15:00:57,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 139 transitions, 564 flow [2021-12-21 15:00:57,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 139 transitions, 511 flow, removed 15 selfloop flow, removed 8 redundant places. [2021-12-21 15:00:57,621 INFO L242 Difference]: Finished difference. Result has 134 places, 106 transitions, 320 flow [2021-12-21 15:00:57,621 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=320, PETRI_PLACES=134, PETRI_TRANSITIONS=106} [2021-12-21 15:00:57,622 INFO L334 CegarLoopForPetriNet]: 125 programPoint places, 9 predicate places. [2021-12-21 15:00:57,622 INFO L470 AbstractCegarLoop]: Abstraction has has 134 places, 106 transitions, 320 flow [2021-12-21 15:00:57,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 99.0) internal successors, (792), 8 states have internal predecessors, (792), 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) [2021-12-21 15:00:57,622 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:00:57,623 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:00:57,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-21 15:00:57,623 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-21 15:00:57,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:00:57,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1042031597, now seen corresponding path program 1 times [2021-12-21 15:00:57,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:00:57,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041550282] [2021-12-21 15:00:57,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:00:57,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:00:57,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:00:57,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:00:57,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:00:57,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041550282] [2021-12-21 15:00:57,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041550282] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:00:57,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:00:57,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 15:00:57,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805100527] [2021-12-21 15:00:57,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:00:57,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 15:00:57,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:00:57,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 15:00:57,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-21 15:00:57,732 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 120 [2021-12-21 15:00:57,733 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 106 transitions, 320 flow. Second operand has 7 states, 7 states have (on average 92.71428571428571) internal successors, (649), 7 states have internal predecessors, (649), 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) [2021-12-21 15:00:57,733 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:00:57,733 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 120 [2021-12-21 15:00:57,733 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:00:57,911 INFO L129 PetriNetUnfolder]: 112/439 cut-off events. [2021-12-21 15:00:57,912 INFO L130 PetriNetUnfolder]: For 217/229 co-relation queries the response was YES. [2021-12-21 15:00:57,913 INFO L84 FinitePrefix]: Finished finitePrefix Result has 943 conditions, 439 events. 112/439 cut-off events. For 217/229 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2060 event pairs, 10 based on Foata normal form. 1/429 useless extension candidates. Maximal degree in co-relation 905. Up to 146 conditions per place. [2021-12-21 15:00:57,914 INFO L132 encePairwiseOnDemand]: 104/120 looper letters, 25 selfloop transitions, 12 changer transitions 7/124 dead transitions. [2021-12-21 15:00:57,914 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 124 transitions, 452 flow [2021-12-21 15:00:57,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 15:00:57,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-21 15:00:57,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 757 transitions. [2021-12-21 15:00:57,917 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7885416666666667 [2021-12-21 15:00:57,917 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 757 transitions. [2021-12-21 15:00:57,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 757 transitions. [2021-12-21 15:00:57,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:00:57,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 757 transitions. [2021-12-21 15:00:57,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 94.625) internal successors, (757), 8 states have internal predecessors, (757), 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) [2021-12-21 15:00:57,920 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 120.0) internal successors, (1080), 9 states have internal predecessors, (1080), 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) [2021-12-21 15:00:57,920 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 120.0) internal successors, (1080), 9 states have internal predecessors, (1080), 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) [2021-12-21 15:00:57,920 INFO L186 Difference]: Start difference. First operand has 134 places, 106 transitions, 320 flow. Second operand 8 states and 757 transitions. [2021-12-21 15:00:57,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 124 transitions, 452 flow [2021-12-21 15:00:57,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 124 transitions, 372 flow, removed 21 selfloop flow, removed 16 redundant places. [2021-12-21 15:00:57,923 INFO L242 Difference]: Finished difference. Result has 125 places, 111 transitions, 307 flow [2021-12-21 15:00:57,924 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=307, PETRI_PLACES=125, PETRI_TRANSITIONS=111} [2021-12-21 15:00:57,924 INFO L334 CegarLoopForPetriNet]: 125 programPoint places, 0 predicate places. [2021-12-21 15:00:57,924 INFO L470 AbstractCegarLoop]: Abstraction has has 125 places, 111 transitions, 307 flow [2021-12-21 15:00:57,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 92.71428571428571) internal successors, (649), 7 states have internal predecessors, (649), 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) [2021-12-21 15:00:57,925 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:00:57,925 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:00:57,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-21 15:00:57,925 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-21 15:00:57,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:00:57,926 INFO L85 PathProgramCache]: Analyzing trace with hash -373902079, now seen corresponding path program 2 times [2021-12-21 15:00:57,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:00:57,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112611302] [2021-12-21 15:00:57,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:00:57,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:00:57,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:00:58,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:00:58,201 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:00:58,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112611302] [2021-12-21 15:00:58,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112611302] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:00:58,201 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:00:58,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-21 15:00:58,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401434835] [2021-12-21 15:00:58,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:00:58,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-21 15:00:58,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:00:58,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-21 15:00:58,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-12-21 15:00:58,203 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 120 [2021-12-21 15:00:58,204 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 111 transitions, 307 flow. Second operand has 13 states, 13 states have (on average 93.76923076923077) internal successors, (1219), 13 states have internal predecessors, (1219), 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) [2021-12-21 15:00:58,205 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:00:58,205 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 120 [2021-12-21 15:00:58,205 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:00:58,389 INFO L129 PetriNetUnfolder]: 62/423 cut-off events. [2021-12-21 15:00:58,389 INFO L130 PetriNetUnfolder]: For 42/71 co-relation queries the response was YES. [2021-12-21 15:00:58,390 INFO L84 FinitePrefix]: Finished finitePrefix Result has 732 conditions, 423 events. 62/423 cut-off events. For 42/71 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2328 event pairs, 11 based on Foata normal form. 1/403 useless extension candidates. Maximal degree in co-relation 719. Up to 56 conditions per place. [2021-12-21 15:00:58,391 INFO L132 encePairwiseOnDemand]: 107/120 looper letters, 16 selfloop transitions, 9 changer transitions 10/122 dead transitions. [2021-12-21 15:00:58,391 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 122 transitions, 415 flow [2021-12-21 15:00:58,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-21 15:00:58,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-21 15:00:58,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1322 transitions. [2021-12-21 15:00:58,393 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7869047619047619 [2021-12-21 15:00:58,393 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1322 transitions. [2021-12-21 15:00:58,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1322 transitions. [2021-12-21 15:00:58,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:00:58,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1322 transitions. [2021-12-21 15:00:58,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 94.42857142857143) internal successors, (1322), 14 states have internal predecessors, (1322), 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) [2021-12-21 15:00:58,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 120.0) internal successors, (1800), 15 states have internal predecessors, (1800), 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) [2021-12-21 15:00:58,399 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 120.0) internal successors, (1800), 15 states have internal predecessors, (1800), 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) [2021-12-21 15:00:58,399 INFO L186 Difference]: Start difference. First operand has 125 places, 111 transitions, 307 flow. Second operand 14 states and 1322 transitions. [2021-12-21 15:00:58,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 122 transitions, 415 flow [2021-12-21 15:00:58,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 122 transitions, 392 flow, removed 5 selfloop flow, removed 5 redundant places. [2021-12-21 15:00:58,401 INFO L242 Difference]: Finished difference. Result has 137 places, 112 transitions, 327 flow [2021-12-21 15:00:58,402 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=327, PETRI_PLACES=137, PETRI_TRANSITIONS=112} [2021-12-21 15:00:58,402 INFO L334 CegarLoopForPetriNet]: 125 programPoint places, 12 predicate places. [2021-12-21 15:00:58,402 INFO L470 AbstractCegarLoop]: Abstraction has has 137 places, 112 transitions, 327 flow [2021-12-21 15:00:58,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 93.76923076923077) internal successors, (1219), 13 states have internal predecessors, (1219), 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) [2021-12-21 15:00:58,403 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:00:58,403 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:00:58,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-21 15:00:58,403 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-21 15:00:58,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:00:58,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1721041995, now seen corresponding path program 3 times [2021-12-21 15:00:58,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:00:58,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008359447] [2021-12-21 15:00:58,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:00:58,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:00:58,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:00:58,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:00:58,517 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:00:58,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008359447] [2021-12-21 15:00:58,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008359447] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:00:58,517 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:00:58,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 15:00:58,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122997636] [2021-12-21 15:00:58,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:00:58,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 15:00:58,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:00:58,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 15:00:58,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-21 15:00:58,519 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 120 [2021-12-21 15:00:58,519 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 112 transitions, 327 flow. Second operand has 7 states, 7 states have (on average 98.71428571428571) internal successors, (691), 7 states have internal predecessors, (691), 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) [2021-12-21 15:00:58,519 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:00:58,519 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 120 [2021-12-21 15:00:58,520 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:00:58,661 INFO L129 PetriNetUnfolder]: 65/412 cut-off events. [2021-12-21 15:00:58,661 INFO L130 PetriNetUnfolder]: For 99/107 co-relation queries the response was YES. [2021-12-21 15:00:58,663 INFO L84 FinitePrefix]: Finished finitePrefix Result has 844 conditions, 412 events. 65/412 cut-off events. For 99/107 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2135 event pairs, 9 based on Foata normal form. 2/401 useless extension candidates. Maximal degree in co-relation 827. Up to 73 conditions per place. [2021-12-21 15:00:58,663 INFO L132 encePairwiseOnDemand]: 114/120 looper letters, 18 selfloop transitions, 1 changer transitions 22/128 dead transitions. [2021-12-21 15:00:58,663 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 128 transitions, 482 flow [2021-12-21 15:00:58,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 15:00:58,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-21 15:00:58,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 707 transitions. [2021-12-21 15:00:58,665 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8416666666666667 [2021-12-21 15:00:58,665 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 707 transitions. [2021-12-21 15:00:58,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 707 transitions. [2021-12-21 15:00:58,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:00:58,665 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 707 transitions. [2021-12-21 15:00:58,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 101.0) internal successors, (707), 7 states have internal predecessors, (707), 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) [2021-12-21 15:00:58,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 120.0) internal successors, (960), 8 states have internal predecessors, (960), 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) [2021-12-21 15:00:58,669 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 120.0) internal successors, (960), 8 states have internal predecessors, (960), 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) [2021-12-21 15:00:58,669 INFO L186 Difference]: Start difference. First operand has 137 places, 112 transitions, 327 flow. Second operand 7 states and 707 transitions. [2021-12-21 15:00:58,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 128 transitions, 482 flow [2021-12-21 15:00:58,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 128 transitions, 439 flow, removed 11 selfloop flow, removed 12 redundant places. [2021-12-21 15:00:58,675 INFO L242 Difference]: Finished difference. Result has 130 places, 106 transitions, 272 flow [2021-12-21 15:00:58,676 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=272, PETRI_PLACES=130, PETRI_TRANSITIONS=106} [2021-12-21 15:00:58,708 INFO L334 CegarLoopForPetriNet]: 125 programPoint places, 5 predicate places. [2021-12-21 15:00:58,708 INFO L470 AbstractCegarLoop]: Abstraction has has 130 places, 106 transitions, 272 flow [2021-12-21 15:00:58,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 98.71428571428571) internal successors, (691), 7 states have internal predecessors, (691), 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) [2021-12-21 15:00:58,709 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:00:58,709 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:00:58,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-21 15:00:58,710 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-21 15:00:58,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:00:58,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1249973039, now seen corresponding path program 4 times [2021-12-21 15:00:58,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:00:58,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461093308] [2021-12-21 15:00:58,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:00:58,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:00:58,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 15:00:58,747 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 15:00:58,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 15:00:58,822 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 15:00:58,822 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-21 15:00:58,823 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2021-12-21 15:00:58,824 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2021-12-21 15:00:58,824 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 6 remaining) [2021-12-21 15:00:58,825 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 6 remaining) [2021-12-21 15:00:58,825 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 6 remaining) [2021-12-21 15:00:58,825 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2021-12-21 15:00:58,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-21 15:00:58,827 INFO L732 BasicCegarLoop]: Path program histogram: [4, 2, 1, 1, 1, 1, 1, 1] [2021-12-21 15:00:58,831 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-21 15:00:58,831 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-21 15:00:58,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 03:00:58 BasicIcfg [2021-12-21 15:00:58,948 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-21 15:00:58,948 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 15:00:58,948 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 15:00:58,949 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 15:00:58,949 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 03:00:53" (3/4) ... [2021-12-21 15:00:58,950 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-21 15:00:59,027 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-21 15:00:59,028 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 15:00:59,028 INFO L158 Benchmark]: Toolchain (without parser) took 6955.83ms. Allocated memory was 104.9MB in the beginning and 270.5MB in the end (delta: 165.7MB). Free memory was 74.5MB in the beginning and 99.8MB in the end (delta: -25.2MB). Peak memory consumption was 138.8MB. Max. memory is 16.1GB. [2021-12-21 15:00:59,028 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 104.9MB. Free memory is still 61.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 15:00:59,029 INFO L158 Benchmark]: CACSL2BoogieTranslator took 504.52ms. Allocated memory was 104.9MB in the beginning and 134.2MB in the end (delta: 29.4MB). Free memory was 74.2MB in the beginning and 95.6MB in the end (delta: -21.4MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2021-12-21 15:00:59,029 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.77ms. Allocated memory is still 134.2MB. Free memory was 95.1MB in the beginning and 91.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-21 15:00:59,029 INFO L158 Benchmark]: Boogie Preprocessor took 56.77ms. Allocated memory is still 134.2MB. Free memory was 91.9MB in the beginning and 89.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 15:00:59,029 INFO L158 Benchmark]: RCFGBuilder took 910.45ms. Allocated memory is still 134.2MB. Free memory was 89.8MB in the beginning and 51.5MB in the end (delta: 38.3MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2021-12-21 15:00:59,030 INFO L158 Benchmark]: TraceAbstraction took 5311.96ms. Allocated memory was 134.2MB in the beginning and 270.5MB in the end (delta: 136.3MB). Free memory was 103.8MB in the beginning and 144.9MB in the end (delta: -41.1MB). Peak memory consumption was 95.1MB. Max. memory is 16.1GB. [2021-12-21 15:00:59,030 INFO L158 Benchmark]: Witness Printer took 79.52ms. Allocated memory is still 270.5MB. Free memory was 144.9MB in the beginning and 99.8MB in the end (delta: 45.1MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2021-12-21 15:00:59,031 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 104.9MB. Free memory is still 61.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 504.52ms. Allocated memory was 104.9MB in the beginning and 134.2MB in the end (delta: 29.4MB). Free memory was 74.2MB in the beginning and 95.6MB in the end (delta: -21.4MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.77ms. Allocated memory is still 134.2MB. Free memory was 95.1MB in the beginning and 91.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.77ms. Allocated memory is still 134.2MB. Free memory was 91.9MB in the beginning and 89.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 910.45ms. Allocated memory is still 134.2MB. Free memory was 89.8MB in the beginning and 51.5MB in the end (delta: 38.3MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * TraceAbstraction took 5311.96ms. Allocated memory was 134.2MB in the beginning and 270.5MB in the end (delta: 136.3MB). Free memory was 103.8MB in the beginning and 144.9MB in the end (delta: -41.1MB). Peak memory consumption was 95.1MB. Max. memory is 16.1GB. * Witness Printer took 79.52ms. Allocated memory is still 270.5MB. Free memory was 144.9MB in the beginning and 99.8MB in the end (delta: 45.1MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * 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 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; VAL [__unbuffered_cnt=0] [L711] 0 int __unbuffered_p0_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0] [L713] 0 int __unbuffered_p0_EBX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0] [L715] 0 int __unbuffered_p1_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0] [L717] 0 int __unbuffered_p1_EBX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0] [L719] 0 int __unbuffered_p2_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0] [L721] 0 int __unbuffered_p2_EBX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0] [L722] 0 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0] [L723] 0 _Bool main$tmp_guard1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0] [L725] 0 int x = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L727] 0 int y = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0] [L728] 0 _Bool y$flush_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0] [L729] 0 int y$mem_tmp; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0] [L730] 0 _Bool y$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0] [L731] 0 _Bool y$r_buff0_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0] [L732] 0 _Bool y$r_buff0_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0] [L733] 0 _Bool y$r_buff0_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0] [L734] 0 _Bool y$r_buff1_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0] [L735] 0 _Bool y$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0] [L736] 0 _Bool y$r_buff1_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0] [L737] 0 _Bool y$r_buff1_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0] [L738] 0 _Bool y$read_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0] [L739] 0 int *y$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}] [L740] 0 int y$w_buff0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0] [L741] 0 _Bool y$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0] [L742] 0 int y$w_buff1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0] [L743] 0 _Bool y$w_buff1_used; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L745] 0 int z = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L746] 0 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L747] 0 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L853] 0 pthread_t t17; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t17={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L854] FCALL, FORK 0 pthread_create(&t17, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t17, ((void *)0), P0, ((void *)0))=-2, t17={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L855] 0 pthread_t t18; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t17={5:0}, t18={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L856] FCALL, FORK 0 pthread_create(&t18, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t18, ((void *)0), P1, ((void *)0))=-1, t17={5:0}, t18={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L857] 0 pthread_t t19; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t17={5:0}, t18={6:0}, t19={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L858] FCALL, FORK 0 pthread_create(&t19, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t19, ((void *)0), P2, ((void *)0))=0, t17={5:0}, t18={6:0}, t19={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L800] 3 y$w_buff1 = y$w_buff0 [L801] 3 y$w_buff0 = 1 [L802] 3 y$w_buff1_used = y$w_buff0_used [L803] 3 y$w_buff0_used = (_Bool)1 [L804] CALL 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND FALSE 3 !(!expression) [L804] RET 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L805] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L806] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L807] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L808] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L809] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L812] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L813] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L814] 3 y$flush_delayed = weak$$choice2 [L815] 3 y$mem_tmp = y [L816] EXPR 3 !y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y : (y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : y$w_buff1) [L816] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : y$w_buff1 [L816] EXPR 3 !y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y : (y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : y$w_buff1) [L816] 3 y = !y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y : (y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : y$w_buff1) [L817] EXPR 3 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : y$w_buff0)) [L817] 3 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : y$w_buff0)) [L818] EXPR 3 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff1 : y$w_buff1)) [L818] 3 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff1 : y$w_buff1)) [L819] EXPR 3 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used)) [L819] 3 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used)) [L820] EXPR 3 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L820] 3 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L821] EXPR 3 weak$$choice2 ? y$r_buff0_thd3 : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$r_buff0_thd3 : (y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3)) [L821] 3 y$r_buff0_thd3 = weak$$choice2 ? y$r_buff0_thd3 : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$r_buff0_thd3 : (y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3)) [L822] EXPR 3 weak$$choice2 ? y$r_buff1_thd3 : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$r_buff1_thd3 : (y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L822] 3 y$r_buff1_thd3 = weak$$choice2 ? y$r_buff1_thd3 : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$r_buff1_thd3 : (y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L823] 3 __unbuffered_p2_EAX = y [L824] EXPR 3 y$flush_delayed ? y$mem_tmp : y [L824] 3 y = y$flush_delayed ? y$mem_tmp : y [L825] 3 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=3, weak$$choice2=1, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L828] 3 __unbuffered_p2_EBX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=3, weak$$choice2=1, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L751] 1 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=3, weak$$choice2=1, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L754] 1 __unbuffered_p0_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=3, weak$$choice2=1, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L757] 1 __unbuffered_p0_EBX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=3, weak$$choice2=1, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L769] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=3, weak$$choice2=1, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L772] 2 __unbuffered_p1_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=3, weak$$choice2=1, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L775] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L776] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L777] 2 y$flush_delayed = weak$$choice2 [L778] 2 y$mem_tmp = y [L779] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L779] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L780] EXPR 2 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L780] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L781] EXPR 2 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L781] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L782] EXPR 2 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L782] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L783] EXPR 2 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L783] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L784] EXPR 2 weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L784] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L785] EXPR 2 weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L785] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L786] 2 __unbuffered_p1_EBX = y [L787] EXPR 2 y$flush_delayed ? y$mem_tmp : y [L787] 2 y = y$flush_delayed ? y$mem_tmp : y [L788] 2 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=255, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L831] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L831] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L832] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L832] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L833] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L833] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L834] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L834] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L835] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L835] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L762] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L838] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L793] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L860] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t17={5:0}, t18={6:0}, t19={3:0}, weak$$choice0=2, weak$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L862] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) VAL [\old(cond)=1, __unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cond=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L862] RET 0 assume_abort_if_not(main$tmp_guard0) [L864] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L864] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L864] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L864] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L865] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L865] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L866] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L866] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L867] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L867] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L868] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L868] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L871] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 1 && __unbuffered_p0_EBX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 0) VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t17={5:0}, t18={6:0}, t19={3:0}, weak$$choice0=2, weak$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L873] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression VAL [\old(expression)=0, \old(expression)=1, __unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L18] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, __unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 858]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 856]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 854]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 148 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.0s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 457 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 457 mSDsluCounter, 690 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1111 mSDsCounter, 73 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1326 IncrementalHoareTripleChecker+Invalid, 1399 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 73 mSolverCounterUnsat, 151 mSDtfsCounter, 1326 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 129 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=342occurred in iteration=6, InterpolantAutomatonStates: 100, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 1040 NumberOfCodeBlocks, 1040 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 935 ConstructedInterpolants, 0 QuantifiedInterpolants, 4980 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-12-21 15:00:59,062 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE