./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix049_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 997cd7c3 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/mix049_rmo.oepc.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 b726ec7542fd149a4af664bbb3651891018e9655 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-997cd7c-m [2021-09-22 14:44:32,217 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-09-22 14:44:32,219 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-09-22 14:44:32,247 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-09-22 14:44:32,247 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-09-22 14:44:32,250 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-09-22 14:44:32,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-09-22 14:44:32,254 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-09-22 14:44:32,255 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-09-22 14:44:32,255 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-09-22 14:44:32,256 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-09-22 14:44:32,256 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-09-22 14:44:32,257 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-09-22 14:44:32,257 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-09-22 14:44:32,258 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-09-22 14:44:32,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-09-22 14:44:32,259 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-09-22 14:44:32,260 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-09-22 14:44:32,261 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-09-22 14:44:32,262 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-09-22 14:44:32,262 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-09-22 14:44:32,277 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-09-22 14:44:32,278 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-09-22 14:44:32,279 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-09-22 14:44:32,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-09-22 14:44:32,287 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-09-22 14:44:32,287 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-09-22 14:44:32,288 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-09-22 14:44:32,288 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-09-22 14:44:32,289 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-09-22 14:44:32,290 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-09-22 14:44:32,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-09-22 14:44:32,291 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-09-22 14:44:32,292 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-09-22 14:44:32,292 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-09-22 14:44:32,293 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-09-22 14:44:32,293 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-09-22 14:44:32,293 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-09-22 14:44:32,294 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-09-22 14:44:32,294 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-09-22 14:44:32,295 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-09-22 14:44:32,296 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-09-22 14:44:32,318 INFO L113 SettingsManager]: Loading preferences was successful [2021-09-22 14:44:32,318 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-09-22 14:44:32,319 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-09-22 14:44:32,319 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-09-22 14:44:32,320 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-09-22 14:44:32,320 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-09-22 14:44:32,320 INFO L138 SettingsManager]: * Use SBE=true [2021-09-22 14:44:32,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-09-22 14:44:32,321 INFO L138 SettingsManager]: * sizeof long=4 [2021-09-22 14:44:32,321 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-09-22 14:44:32,322 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-09-22 14:44:32,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-09-22 14:44:32,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-09-22 14:44:32,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-09-22 14:44:32,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-09-22 14:44:32,323 INFO L138 SettingsManager]: * sizeof long double=12 [2021-09-22 14:44:32,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-09-22 14:44:32,323 INFO L138 SettingsManager]: * Use constant arrays=true [2021-09-22 14:44:32,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-09-22 14:44:32,323 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-09-22 14:44:32,323 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-09-22 14:44:32,324 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-09-22 14:44:32,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-09-22 14:44:32,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-09-22 14:44:32,328 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-09-22 14:44:32,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-09-22 14:44:32,329 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-09-22 14:44:32,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-09-22 14:44:32,329 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-09-22 14:44:32,329 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-09-22 14:44:32,329 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b726ec7542fd149a4af664bbb3651891018e9655 [2021-09-22 14:44:32,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-09-22 14:44:32,615 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-09-22 14:44:32,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-09-22 14:44:32,619 INFO L271 PluginConnector]: Initializing CDTParser... [2021-09-22 14:44:32,619 INFO L275 PluginConnector]: CDTParser initialized [2021-09-22 14:44:32,620 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix049_rmo.oepc.i [2021-09-22 14:44:32,666 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93d56e11a/17bb97741e3a4941aa2902b5c0e20b55/FLAGb887114e8 [2021-09-22 14:44:33,116 INFO L306 CDTParser]: Found 1 translation units. [2021-09-22 14:44:33,116 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix049_rmo.oepc.i [2021-09-22 14:44:33,133 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93d56e11a/17bb97741e3a4941aa2902b5c0e20b55/FLAGb887114e8 [2021-09-22 14:44:33,147 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93d56e11a/17bb97741e3a4941aa2902b5c0e20b55 [2021-09-22 14:44:33,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-09-22 14:44:33,152 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-09-22 14:44:33,152 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-09-22 14:44:33,153 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-09-22 14:44:33,155 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-09-22 14:44:33,156 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.09 02:44:33" (1/1) ... [2021-09-22 14:44:33,156 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c2e0a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:44:33, skipping insertion in model container [2021-09-22 14:44:33,156 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.09 02:44:33" (1/1) ... [2021-09-22 14:44:33,161 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-09-22 14:44:33,201 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-09-22 14:44:33,355 WARN L228 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/mix049_rmo.oepc.i[949,962] [2021-09-22 14:44:33,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-09-22 14:44:33,544 INFO L203 MainTranslator]: Completed pre-run [2021-09-22 14:44:33,552 WARN L228 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/mix049_rmo.oepc.i[949,962] [2021-09-22 14:44:33,582 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-09-22 14:44:33,615 INFO L208 MainTranslator]: Completed translation [2021-09-22 14:44:33,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:44:33 WrapperNode [2021-09-22 14:44:33,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-09-22 14:44:33,617 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-09-22 14:44:33,618 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-09-22 14:44:33,618 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-09-22 14:44:33,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:44:33" (1/1) ... [2021-09-22 14:44:33,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:44:33" (1/1) ... [2021-09-22 14:44:33,658 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-09-22 14:44:33,658 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-09-22 14:44:33,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-09-22 14:44:33,659 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-09-22 14:44:33,668 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:44:33" (1/1) ... [2021-09-22 14:44:33,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:44:33" (1/1) ... [2021-09-22 14:44:33,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:44:33" (1/1) ... [2021-09-22 14:44:33,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:44:33" (1/1) ... [2021-09-22 14:44:33,689 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:44:33" (1/1) ... [2021-09-22 14:44:33,692 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:44:33" (1/1) ... [2021-09-22 14:44:33,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:44:33" (1/1) ... [2021-09-22 14:44:33,696 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-09-22 14:44:33,697 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-09-22 14:44:33,697 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-09-22 14:44:33,697 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-09-22 14:44:33,698 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:44:33" (1/1) ... [2021-09-22 14:44:33,710 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-09-22 14:44:33,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-09-22 14:44:33,738 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) [2021-09-22 14:44:33,753 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 [2021-09-22 14:44:33,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-09-22 14:44:33,776 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-09-22 14:44:33,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-09-22 14:44:33,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-09-22 14:44:33,776 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-09-22 14:44:33,776 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-09-22 14:44:33,777 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-09-22 14:44:33,777 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-09-22 14:44:33,777 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-09-22 14:44:33,777 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-09-22 14:44:33,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-09-22 14:44:33,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-09-22 14:44:33,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-09-22 14:44:33,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-09-22 14:44:33,782 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-09-22 14:44:34,964 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-09-22 14:44:34,965 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-09-22 14:44:34,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 02:44:34 BoogieIcfgContainer [2021-09-22 14:44:34,966 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-09-22 14:44:34,967 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-09-22 14:44:34,968 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-09-22 14:44:34,970 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-09-22 14:44:34,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.09 02:44:33" (1/3) ... [2021-09-22 14:44:34,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@784b4476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.09 02:44:34, skipping insertion in model container [2021-09-22 14:44:34,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:44:33" (2/3) ... [2021-09-22 14:44:34,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@784b4476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.09 02:44:34, skipping insertion in model container [2021-09-22 14:44:34,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 02:44:34" (3/3) ... [2021-09-22 14:44:34,972 INFO L111 eAbstractionObserver]: Analyzing ICFG mix049_rmo.oepc.i [2021-09-22 14:44:34,975 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-09-22 14:44:34,975 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-09-22 14:44:34,976 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-09-22 14:44:34,976 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-09-22 14:44:34,998 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:34,998 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:34,999 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:34,999 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:34,999 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:34,999 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:34,999 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:34,999 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:34,999 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,000 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,000 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,000 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,000 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,000 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,000 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,001 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,001 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,001 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,001 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,001 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,001 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,001 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,001 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,002 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,002 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,002 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,002 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,002 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,002 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,003 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,003 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,003 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,003 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,003 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,004 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,004 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,004 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,004 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,004 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,004 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,004 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,005 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,005 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,005 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,005 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,005 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,005 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,005 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,005 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,006 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,006 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,006 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,006 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,006 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,006 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,006 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,007 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,007 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,007 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,007 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,007 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,008 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,008 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,008 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,008 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,008 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,008 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,008 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,008 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,009 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,009 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,009 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,009 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,009 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,009 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,009 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,009 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,010 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,010 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,010 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,010 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,010 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,010 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,010 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,010 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,011 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,011 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,011 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,011 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,012 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,012 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,012 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,012 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,012 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,012 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,016 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,016 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,017 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,020 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,020 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,021 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,021 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,021 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,021 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,021 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,021 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,022 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,023 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,023 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,023 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,023 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,023 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,023 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,023 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,023 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,023 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,024 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,024 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,024 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,024 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,024 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,024 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,024 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,024 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,025 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,025 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,025 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,025 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,025 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,025 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,025 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,025 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,025 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,026 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,026 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,026 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,026 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,026 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,026 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,026 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,026 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,027 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,027 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,027 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,028 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,028 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,028 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,028 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,028 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,029 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,029 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,029 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,029 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,029 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,029 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,029 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,029 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,030 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,030 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,030 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,030 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,030 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,032 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,032 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,033 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,033 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,033 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,033 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,033 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,033 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,033 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,034 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,035 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,035 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,035 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,035 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,035 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,035 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,036 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,036 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,036 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,036 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,036 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,036 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,036 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,036 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,037 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,037 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,037 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,037 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,037 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,037 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,037 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,037 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,038 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,038 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,038 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,038 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,038 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,038 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,038 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,038 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,039 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,039 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,039 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,040 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,040 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,040 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,040 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,040 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,041 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,041 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,041 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,041 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,041 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,041 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,041 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:44:35,042 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-09-22 14:44:35,067 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-09-22 14:44:35,070 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, mConcurrency=FINITE_AUTOMATA, 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 [2021-09-22 14:44:35,070 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-09-22 14:44:35,078 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-09-22 14:44:35,083 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 116 places, 108 transitions, 231 flow [2021-09-22 14:44:35,085 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 116 places, 108 transitions, 231 flow [2021-09-22 14:44:35,086 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 116 places, 108 transitions, 231 flow [2021-09-22 14:44:35,109 INFO L129 PetriNetUnfolder]: 2/105 cut-off events. [2021-09-22 14:44:35,109 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-09-22 14:44:35,111 INFO L84 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 105 events. 2/105 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. 0/101 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-09-22 14:44:35,113 INFO L116 LiptonReduction]: Number of co-enabled transitions 1876 [2021-09-22 14:44:38,866 INFO L131 LiptonReduction]: Checked pairs total: 5054 [2021-09-22 14:44:38,867 INFO L133 LiptonReduction]: Total number of compositions: 92 [2021-09-22 14:44:38,872 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 27 transitions, 69 flow [2021-09-22 14:44:38,900 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 724 states, 721 states have (on average 3.1858529819694867) internal successors, (2297), 723 states have internal predecessors, (2297), 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) [2021-09-22 14:44:38,903 INFO L276 IsEmpty]: Start isEmpty. Operand has 724 states, 721 states have (on average 3.1858529819694867) internal successors, (2297), 723 states have internal predecessors, (2297), 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) [2021-09-22 14:44:38,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-09-22 14:44:38,906 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:44:38,906 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-09-22 14:44:38,907 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-09-22 14:44:38,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:44:38,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1090391, now seen corresponding path program 1 times [2021-09-22 14:44:38,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:44:38,915 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694795014] [2021-09-22 14:44:38,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:44:38,916 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:44:39,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:44:39,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:44:39,096 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:44:39,096 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694795014] [2021-09-22 14:44:39,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694795014] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:44:39,097 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:44:39,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-09-22 14:44:39,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492683568] [2021-09-22 14:44:39,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-09-22 14:44:39,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:44:39,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-09-22 14:44:39,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-09-22 14:44:39,111 INFO L87 Difference]: Start difference. First operand has 724 states, 721 states have (on average 3.1858529819694867) internal successors, (2297), 723 states have internal predecessors, (2297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-09-22 14:44:39,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:44:39,160 INFO L93 Difference]: Finished difference Result 587 states and 1790 transitions. [2021-09-22 14:44:39,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-09-22 14:44:39,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-09-22 14:44:39,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:44:39,173 INFO L225 Difference]: With dead ends: 587 [2021-09-22 14:44:39,177 INFO L226 Difference]: Without dead ends: 562 [2021-09-22 14:44:39,178 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-09-22 14:44:39,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2021-09-22 14:44:39,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 562. [2021-09-22 14:44:39,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 561 states have (on average 3.0748663101604277) internal successors, (1725), 561 states have internal predecessors, (1725), 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) [2021-09-22 14:44:39,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 1725 transitions. [2021-09-22 14:44:39,258 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 1725 transitions. Word has length 3 [2021-09-22 14:44:39,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:44:39,258 INFO L470 AbstractCegarLoop]: Abstraction has 562 states and 1725 transitions. [2021-09-22 14:44:39,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-09-22 14:44:39,259 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 1725 transitions. [2021-09-22 14:44:39,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-09-22 14:44:39,260 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:44:39,260 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:44:39,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-09-22 14:44:39,260 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-09-22 14:44:39,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:44:39,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1763654098, now seen corresponding path program 1 times [2021-09-22 14:44:39,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:44:39,262 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873363000] [2021-09-22 14:44:39,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:44:39,262 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:44:39,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:44:39,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:44:39,352 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:44:39,352 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873363000] [2021-09-22 14:44:39,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873363000] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:44:39,353 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:44:39,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-09-22 14:44:39,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61431692] [2021-09-22 14:44:39,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-09-22 14:44:39,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:44:39,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-09-22 14:44:39,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-09-22 14:44:39,354 INFO L87 Difference]: Start difference. First operand 562 states and 1725 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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) [2021-09-22 14:44:39,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:44:39,379 INFO L93 Difference]: Finished difference Result 495 states and 1321 transitions. [2021-09-22 14:44:39,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-09-22 14:44:39,380 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-09-22 14:44:39,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:44:39,382 INFO L225 Difference]: With dead ends: 495 [2021-09-22 14:44:39,382 INFO L226 Difference]: Without dead ends: 370 [2021-09-22 14:44:39,382 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-09-22 14:44:39,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2021-09-22 14:44:39,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2021-09-22 14:44:39,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 369 states have (on average 2.5934959349593494) internal successors, (957), 369 states have internal predecessors, (957), 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) [2021-09-22 14:44:39,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 957 transitions. [2021-09-22 14:44:39,389 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 957 transitions. Word has length 9 [2021-09-22 14:44:39,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:44:39,389 INFO L470 AbstractCegarLoop]: Abstraction has 370 states and 957 transitions. [2021-09-22 14:44:39,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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) [2021-09-22 14:44:39,390 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 957 transitions. [2021-09-22 14:44:39,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-09-22 14:44:39,391 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:44:39,391 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:44:39,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-09-22 14:44:39,391 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-09-22 14:44:39,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:44:39,392 INFO L82 PathProgramCache]: Analyzing trace with hash -1427906851, now seen corresponding path program 1 times [2021-09-22 14:44:39,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:44:39,392 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024648082] [2021-09-22 14:44:39,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:44:39,392 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:44:39,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:44:39,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:44:39,468 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:44:39,468 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024648082] [2021-09-22 14:44:39,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024648082] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:44:39,468 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:44:39,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-09-22 14:44:39,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042600163] [2021-09-22 14:44:39,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-09-22 14:44:39,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:44:39,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-09-22 14:44:39,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-09-22 14:44:39,473 INFO L87 Difference]: Start difference. First operand 370 states and 957 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-09-22 14:44:39,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:44:39,502 INFO L93 Difference]: Finished difference Result 287 states and 681 transitions. [2021-09-22 14:44:39,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-09-22 14:44:39,502 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-09-22 14:44:39,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:44:39,503 INFO L225 Difference]: With dead ends: 287 [2021-09-22 14:44:39,504 INFO L226 Difference]: Without dead ends: 226 [2021-09-22 14:44:39,504 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 8.0ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-09-22 14:44:39,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2021-09-22 14:44:39,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2021-09-22 14:44:39,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 225 states have (on average 2.3333333333333335) internal successors, (525), 225 states have internal predecessors, (525), 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) [2021-09-22 14:44:39,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 525 transitions. [2021-09-22 14:44:39,509 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 525 transitions. Word has length 13 [2021-09-22 14:44:39,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:44:39,509 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 525 transitions. [2021-09-22 14:44:39,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-09-22 14:44:39,510 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 525 transitions. [2021-09-22 14:44:39,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-09-22 14:44:39,514 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:44:39,514 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:44:39,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-09-22 14:44:39,515 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-09-22 14:44:39,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:44:39,515 INFO L82 PathProgramCache]: Analyzing trace with hash 269104966, now seen corresponding path program 1 times [2021-09-22 14:44:39,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:44:39,515 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389290912] [2021-09-22 14:44:39,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:44:39,516 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:44:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:44:39,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:44:39,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:44:39,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389290912] [2021-09-22 14:44:39,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389290912] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:44:39,618 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:44:39,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-09-22 14:44:39,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498158811] [2021-09-22 14:44:39,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-09-22 14:44:39,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:44:39,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-09-22 14:44:39,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-09-22 14:44:39,620 INFO L87 Difference]: Start difference. First operand 226 states and 525 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 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) [2021-09-22 14:44:39,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:44:39,668 INFO L93 Difference]: Finished difference Result 203 states and 477 transitions. [2021-09-22 14:44:39,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-09-22 14:44:39,668 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-09-22 14:44:39,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:44:39,669 INFO L225 Difference]: With dead ends: 203 [2021-09-22 14:44:39,669 INFO L226 Difference]: Without dead ends: 190 [2021-09-22 14:44:39,669 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 9.7ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-09-22 14:44:39,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2021-09-22 14:44:39,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2021-09-22 14:44:39,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 189 states have (on average 2.3968253968253967) internal successors, (453), 189 states have internal predecessors, (453), 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) [2021-09-22 14:44:39,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 453 transitions. [2021-09-22 14:44:39,673 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 453 transitions. Word has length 17 [2021-09-22 14:44:39,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:44:39,673 INFO L470 AbstractCegarLoop]: Abstraction has 190 states and 453 transitions. [2021-09-22 14:44:39,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 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) [2021-09-22 14:44:39,673 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 453 transitions. [2021-09-22 14:44:39,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-09-22 14:44:39,674 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:44:39,674 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:44:39,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-09-22 14:44:39,674 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-09-22 14:44:39,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:44:39,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1848493250, now seen corresponding path program 1 times [2021-09-22 14:44:39,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:44:39,675 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275834510] [2021-09-22 14:44:39,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:44:39,675 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:44:39,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:44:39,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:44:39,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:44:39,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275834510] [2021-09-22 14:44:39,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275834510] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:44:39,735 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:44:39,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-09-22 14:44:39,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644247496] [2021-09-22 14:44:39,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-09-22 14:44:39,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:44:39,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-09-22 14:44:39,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-09-22 14:44:39,737 INFO L87 Difference]: Start difference. First operand 190 states and 453 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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) [2021-09-22 14:44:39,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:44:39,756 INFO L93 Difference]: Finished difference Result 276 states and 646 transitions. [2021-09-22 14:44:39,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-09-22 14:44:39,756 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-09-22 14:44:39,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:44:39,757 INFO L225 Difference]: With dead ends: 276 [2021-09-22 14:44:39,757 INFO L226 Difference]: Without dead ends: 229 [2021-09-22 14:44:39,758 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-09-22 14:44:39,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2021-09-22 14:44:39,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 172. [2021-09-22 14:44:39,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 171 states have (on average 2.3333333333333335) internal successors, (399), 171 states have internal predecessors, (399), 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) [2021-09-22 14:44:39,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 399 transitions. [2021-09-22 14:44:39,763 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 399 transitions. Word has length 21 [2021-09-22 14:44:39,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:44:39,763 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 399 transitions. [2021-09-22 14:44:39,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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) [2021-09-22 14:44:39,763 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 399 transitions. [2021-09-22 14:44:39,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-09-22 14:44:39,764 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:44:39,764 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:44:39,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-09-22 14:44:39,764 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-09-22 14:44:39,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:44:39,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1111350014, now seen corresponding path program 2 times [2021-09-22 14:44:39,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:44:39,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272839730] [2021-09-22 14:44:39,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:44:39,765 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:44:39,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:44:39,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:44:39,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:44:39,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272839730] [2021-09-22 14:44:39,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272839730] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:44:39,842 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:44:39,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-09-22 14:44:39,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523281026] [2021-09-22 14:44:39,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-09-22 14:44:39,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:44:39,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-09-22 14:44:39,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-09-22 14:44:39,843 INFO L87 Difference]: Start difference. First operand 172 states and 399 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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) [2021-09-22 14:44:39,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:44:39,853 INFO L93 Difference]: Finished difference Result 258 states and 592 transitions. [2021-09-22 14:44:39,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-09-22 14:44:39,854 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-09-22 14:44:39,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:44:39,855 INFO L225 Difference]: With dead ends: 258 [2021-09-22 14:44:39,855 INFO L226 Difference]: Without dead ends: 134 [2021-09-22 14:44:39,855 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-09-22 14:44:39,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-09-22 14:44:39,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2021-09-22 14:44:39,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 2.2030075187969924) internal successors, (293), 133 states have internal predecessors, (293), 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) [2021-09-22 14:44:39,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 293 transitions. [2021-09-22 14:44:39,858 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 293 transitions. Word has length 21 [2021-09-22 14:44:39,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:44:39,858 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 293 transitions. [2021-09-22 14:44:39,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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) [2021-09-22 14:44:39,858 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 293 transitions. [2021-09-22 14:44:39,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-09-22 14:44:39,859 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:44:39,859 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:44:39,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-09-22 14:44:39,859 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-09-22 14:44:39,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:44:39,860 INFO L82 PathProgramCache]: Analyzing trace with hash 976082370, now seen corresponding path program 3 times [2021-09-22 14:44:39,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:44:39,860 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783345016] [2021-09-22 14:44:39,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:44:39,860 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:44:39,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:44:39,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:44:39,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:44:39,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783345016] [2021-09-22 14:44:39,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783345016] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:44:39,946 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:44:39,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-09-22 14:44:39,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513267421] [2021-09-22 14:44:39,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-09-22 14:44:39,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:44:39,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-09-22 14:44:39,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-09-22 14:44:39,948 INFO L87 Difference]: Start difference. First operand 134 states and 293 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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) [2021-09-22 14:44:39,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:44:39,967 INFO L93 Difference]: Finished difference Result 172 states and 370 transitions. [2021-09-22 14:44:39,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-09-22 14:44:39,968 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-09-22 14:44:39,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:44:39,969 INFO L225 Difference]: With dead ends: 172 [2021-09-22 14:44:39,969 INFO L226 Difference]: Without dead ends: 119 [2021-09-22 14:44:39,970 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-09-22 14:44:39,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-09-22 14:44:39,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 110. [2021-09-22 14:44:39,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 109 states have (on average 2.1376146788990824) internal successors, (233), 109 states have internal predecessors, (233), 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) [2021-09-22 14:44:39,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 233 transitions. [2021-09-22 14:44:39,974 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 233 transitions. Word has length 21 [2021-09-22 14:44:39,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:44:39,974 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 233 transitions. [2021-09-22 14:44:39,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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) [2021-09-22 14:44:39,974 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 233 transitions. [2021-09-22 14:44:39,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-09-22 14:44:39,975 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:44:39,975 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:44:39,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-09-22 14:44:39,975 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-09-22 14:44:39,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:44:39,976 INFO L82 PathProgramCache]: Analyzing trace with hash -164491128, now seen corresponding path program 4 times [2021-09-22 14:44:39,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:44:39,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88813461] [2021-09-22 14:44:39,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:44:39,976 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:44:39,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:44:40,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:44:40,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:44:40,040 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88813461] [2021-09-22 14:44:40,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88813461] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:44:40,040 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:44:40,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-09-22 14:44:40,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683258132] [2021-09-22 14:44:40,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-09-22 14:44:40,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:44:40,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-09-22 14:44:40,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-09-22 14:44:40,041 INFO L87 Difference]: Start difference. First operand 110 states and 233 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 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) [2021-09-22 14:44:40,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:44:40,058 INFO L93 Difference]: Finished difference Result 148 states and 310 transitions. [2021-09-22 14:44:40,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-09-22 14:44:40,059 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-09-22 14:44:40,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:44:40,059 INFO L225 Difference]: With dead ends: 148 [2021-09-22 14:44:40,059 INFO L226 Difference]: Without dead ends: 102 [2021-09-22 14:44:40,060 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.0ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-09-22 14:44:40,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-09-22 14:44:40,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2021-09-22 14:44:40,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 101 states have (on average 2.108910891089109) internal successors, (213), 101 states have internal predecessors, (213), 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) [2021-09-22 14:44:40,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 213 transitions. [2021-09-22 14:44:40,062 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 213 transitions. Word has length 21 [2021-09-22 14:44:40,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:44:40,062 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 213 transitions. [2021-09-22 14:44:40,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 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) [2021-09-22 14:44:40,063 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 213 transitions. [2021-09-22 14:44:40,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-09-22 14:44:40,063 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:44:40,063 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:44:40,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-09-22 14:44:40,063 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-09-22 14:44:40,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:44:40,064 INFO L82 PathProgramCache]: Analyzing trace with hash 1701599746, now seen corresponding path program 5 times [2021-09-22 14:44:40,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:44:40,065 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120053674] [2021-09-22 14:44:40,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:44:40,065 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:44:40,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-09-22 14:44:40,100 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-09-22 14:44:40,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-09-22 14:44:40,150 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-09-22 14:44:40,151 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-09-22 14:44:40,151 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-09-22 14:44:40,153 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-09-22 14:44:40,153 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-09-22 14:44:40,153 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-09-22 14:44:40,153 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-09-22 14:44:40,153 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-09-22 14:44:40,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-09-22 14:44:40,158 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-09-22 14:44:40,158 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-09-22 14:44:40,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.09 02:44:40 BasicIcfg [2021-09-22 14:44:40,226 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-09-22 14:44:40,227 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-09-22 14:44:40,227 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-09-22 14:44:40,227 INFO L275 PluginConnector]: Witness Printer initialized [2021-09-22 14:44:40,227 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 02:44:34" (3/4) ... [2021-09-22 14:44:40,228 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-09-22 14:44:40,295 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-09-22 14:44:40,296 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-09-22 14:44:40,297 INFO L168 Benchmark]: Toolchain (without parser) took 7144.53 ms. Allocated memory was 56.6 MB in the beginning and 146.8 MB in the end (delta: 90.2 MB). Free memory was 33.8 MB in the beginning and 96.1 MB in the end (delta: -62.3 MB). Peak memory consumption was 27.1 MB. Max. memory is 16.1 GB. [2021-09-22 14:44:40,297 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 56.6 MB. Free memory was 38.8 MB in the beginning and 38.7 MB in the end (delta: 44.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-09-22 14:44:40,298 INFO L168 Benchmark]: CACSL2BoogieTranslator took 464.40 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 33.6 MB in the beginning and 39.8 MB in the end (delta: -6.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-09-22 14:44:40,298 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.58 ms. Allocated memory is still 69.2 MB. Free memory was 39.8 MB in the beginning and 37.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-09-22 14:44:40,298 INFO L168 Benchmark]: Boogie Preprocessor took 38.23 ms. Allocated memory is still 69.2 MB. Free memory was 37.4 MB in the beginning and 50.6 MB in the end (delta: -13.2 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2021-09-22 14:44:40,299 INFO L168 Benchmark]: RCFGBuilder took 1269.42 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 50.6 MB in the beginning and 59.7 MB in the end (delta: -9.1 MB). Peak memory consumption was 31.6 MB. Max. memory is 16.1 GB. [2021-09-22 14:44:40,299 INFO L168 Benchmark]: TraceAbstraction took 5258.90 ms. Allocated memory was 83.9 MB in the beginning and 146.8 MB in the end (delta: 62.9 MB). Free memory was 59.2 MB in the beginning and 112.9 MB in the end (delta: -53.7 MB). Peak memory consumption was 78.9 MB. Max. memory is 16.1 GB. [2021-09-22 14:44:40,299 INFO L168 Benchmark]: Witness Printer took 68.91 ms. Allocated memory is still 146.8 MB. Free memory was 112.9 MB in the beginning and 96.1 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-09-22 14:44:40,301 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 56.6 MB. Free memory was 38.8 MB in the beginning and 38.7 MB in the end (delta: 44.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 464.40 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 33.6 MB in the beginning and 39.8 MB in the end (delta: -6.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.58 ms. Allocated memory is still 69.2 MB. Free memory was 39.8 MB in the beginning and 37.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.23 ms. Allocated memory is still 69.2 MB. Free memory was 37.4 MB in the beginning and 50.6 MB in the end (delta: -13.2 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1269.42 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 50.6 MB in the beginning and 59.7 MB in the end (delta: -9.1 MB). Peak memory consumption was 31.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5258.90 ms. Allocated memory was 83.9 MB in the beginning and 146.8 MB in the end (delta: 62.9 MB). Free memory was 59.2 MB in the beginning and 112.9 MB in the end (delta: -53.7 MB). Peak memory consumption was 78.9 MB. Max. memory is 16.1 GB. * Witness Printer took 68.91 ms. Allocated memory is still 146.8 MB. Free memory was 112.9 MB in the beginning and 96.1 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3781.9ms, 116 PlacesBefore, 36 PlacesAfterwards, 108 TransitionsBefore, 27 TransitionsAfterwards, 1876 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 92 TotalNumberOfCompositions, 5054 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2468, positive: 2294, positive conditional: 0, positive unconditional: 2294, negative: 174, negative conditional: 0, negative unconditional: 174, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1355, positive: 1301, positive conditional: 0, positive unconditional: 1301, negative: 54, negative conditional: 0, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1355, positive: 1281, positive conditional: 0, positive unconditional: 1281, negative: 74, negative conditional: 0, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 74, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 54, negative conditional: 0, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 393, positive: 47, positive conditional: 0, positive unconditional: 47, negative: 347, negative conditional: 0, negative unconditional: 347, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2468, positive: 993, positive conditional: 0, positive unconditional: 993, negative: 120, negative conditional: 0, negative unconditional: 120, unknown: 1355, unknown conditional: 0, unknown unconditional: 1355] , Statistics on independence cache: Total cache size (in pairs): 158, Positive cache size: 131, Positive conditional cache size: 0, Positive unconditional cache size: 131, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms 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; [L711] 0 int __unbuffered_p0_EAX = 0; [L713] 0 int __unbuffered_p1_EAX = 0; [L715] 0 int __unbuffered_p2_EAX = 0; [L716] 0 _Bool main$tmp_guard0; [L717] 0 _Bool main$tmp_guard1; [L719] 0 int x = 0; [L721] 0 int y = 0; [L723] 0 int z = 0; [L724] 0 _Bool z$flush_delayed; [L725] 0 int z$mem_tmp; [L726] 0 _Bool z$r_buff0_thd0; [L727] 0 _Bool z$r_buff0_thd1; [L728] 0 _Bool z$r_buff0_thd2; [L729] 0 _Bool z$r_buff0_thd3; [L730] 0 _Bool z$r_buff1_thd0; [L731] 0 _Bool z$r_buff1_thd1; [L732] 0 _Bool z$r_buff1_thd2; [L733] 0 _Bool z$r_buff1_thd3; [L734] 0 _Bool z$read_delayed; [L735] 0 int *z$read_delayed_var; [L736] 0 int z$w_buff0; [L737] 0 _Bool z$w_buff0_used; [L738] 0 int z$w_buff1; [L739] 0 _Bool z$w_buff1_used; [L740] 0 _Bool weak$$choice0; [L741] 0 _Bool weak$$choice2; [L835] 0 pthread_t t1309; [L836] FCALL, FORK 0 pthread_create(&t1309, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L837] 0 pthread_t t1310; [L838] FCALL, FORK 0 pthread_create(&t1310, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L839] 0 pthread_t t1311; [L840] FCALL, FORK 0 pthread_create(&t1311, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=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, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L745] 1 z$w_buff1 = z$w_buff0 [L746] 1 z$w_buff0 = 1 [L747] 1 z$w_buff1_used = z$w_buff0_used [L748] 1 z$w_buff0_used = (_Bool)1 [L18] COND FALSE 1 !(!expression) [L750] 1 z$r_buff1_thd0 = z$r_buff0_thd0 [L751] 1 z$r_buff1_thd1 = z$r_buff0_thd1 [L752] 1 z$r_buff1_thd2 = z$r_buff0_thd2 [L753] 1 z$r_buff1_thd3 = z$r_buff0_thd3 [L754] 1 z$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L757] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=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, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L774] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=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=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L777] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=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=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L780] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd2 ? z$w_buff1 : z) [L780] EXPR 2 z$w_buff1_used && z$r_buff1_thd2 ? z$w_buff1 : z [L780] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd2 ? z$w_buff1 : z) [L780] 2 z = z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd2 ? z$w_buff1 : z) [L781] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used [L781] 2 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used [L782] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$w_buff1_used [L782] 2 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$w_buff1_used [L783] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2 [L783] 2 z$r_buff0_thd2 = z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2 [L784] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$r_buff1_thd2 [L784] 2 z$r_buff1_thd2 = z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$r_buff1_thd2 [L787] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L789] 2 return 0; [L794] 3 y = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L797] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L798] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L799] 3 z$flush_delayed = weak$$choice2 [L800] 3 z$mem_tmp = z [L801] EXPR 3 !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L801] 3 z = !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L802] EXPR 3 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L802] 3 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L803] EXPR 3 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L803] 3 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L804] EXPR 3 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L804] 3 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L805] EXPR 3 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L805] 3 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L806] EXPR 3 weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L806] 3 z$r_buff0_thd3 = weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L807] EXPR 3 weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L807] 3 z$r_buff1_thd3 = weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L808] 3 __unbuffered_p2_EAX = z [L809] EXPR 3 z$flush_delayed ? z$mem_tmp : z [L809] 3 z = z$flush_delayed ? z$mem_tmp : z [L810] 3 z$flush_delayed = (_Bool)0 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L813] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L813] EXPR 3 z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z [L813] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L813] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L814] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L814] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L815] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L815] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L816] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L816] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L817] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L817] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L820] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L822] 3 return 0; [L760] EXPR 1 z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd1 ? z$w_buff1 : z) [L760] 1 z = z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd1 ? z$w_buff1 : z) [L761] EXPR 1 z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$w_buff0_used [L761] 1 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$w_buff0_used [L762] EXPR 1 z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$w_buff1_used [L762] 1 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$w_buff1_used [L763] EXPR 1 z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$r_buff0_thd1 [L763] 1 z$r_buff0_thd1 = z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$r_buff0_thd1 [L764] EXPR 1 z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$r_buff1_thd1 [L764] 1 z$r_buff1_thd1 = z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$r_buff1_thd1 [L767] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L769] 1 return 0; [L842] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L3] COND FALSE 0 !(!cond) [L846] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L846] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L846] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L846] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L847] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L847] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L848] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L848] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L849] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L849] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L850] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L850] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L853] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 0) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - 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: 838]: 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: 840]: 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: 836]: 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, 135 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 5090.1ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 13.7ms, AutomataDifference: 264.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 3829.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 236 SDtfs, 224 SDslu, 309 SDs, 0 SdLazy, 118 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 97.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 70.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=724occurred in iteration=0, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 92.0ms AutomataMinimizationTime, 8 MinimizatonAttempts, 66 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 28.8ms SsaConstructionTime, 287.8ms SatisfiabilityAnalysisTime, 347.1ms InterpolantComputationTime, 147 NumberOfCodeBlocks, 147 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 118 ConstructedInterpolants, 0 QuantifiedInterpolants, 498 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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! [2021-09-22 14:44:40,336 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...