./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe034_pso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf 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/safe034_pso.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 a047411ef4471f24e7719411658e09b1a4216c0e ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-wip.dd.seqcomp-5fbdf5b [2021-08-29 22:25:27,895 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 22:25:27,899 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 22:25:27,942 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 22:25:27,942 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 22:25:27,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 22:25:27,948 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 22:25:27,954 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 22:25:27,957 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 22:25:27,961 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 22:25:27,962 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 22:25:27,966 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 22:25:27,966 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 22:25:27,969 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 22:25:27,970 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 22:25:27,974 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 22:25:27,975 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 22:25:27,976 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 22:25:27,978 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 22:25:27,983 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 22:25:27,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 22:25:27,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 22:25:27,987 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 22:25:27,989 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 22:25:27,991 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 22:25:27,992 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 22:25:27,992 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 22:25:27,993 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 22:25:27,994 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 22:25:27,995 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 22:25:27,995 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 22:25:27,996 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 22:25:27,997 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 22:25:27,998 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 22:25:27,999 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 22:25:27,999 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 22:25:28,000 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 22:25:28,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 22:25:28,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 22:25:28,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 22:25:28,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 22:25:28,004 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 22:25:28,037 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 22:25:28,037 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 22:25:28,038 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 22:25:28,038 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 22:25:28,040 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 22:25:28,041 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 22:25:28,041 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 22:25:28,041 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 22:25:28,041 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 22:25:28,041 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 22:25:28,042 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 22:25:28,043 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 22:25:28,043 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 22:25:28,043 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 22:25:28,043 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 22:25:28,043 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 22:25:28,043 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 22:25:28,049 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 22:25:28,049 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 22:25:28,049 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 22:25:28,049 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 22:25:28,049 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 22:25:28,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 22:25:28,050 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 22:25:28,050 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 22:25:28,050 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 22:25:28,050 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 22:25:28,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 22:25:28,051 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 22:25:28,051 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 22:25:28,051 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a047411ef4471f24e7719411658e09b1a4216c0e [2021-08-29 22:25:28,329 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 22:25:28,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 22:25:28,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 22:25:28,361 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 22:25:28,361 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 22:25:28,363 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe034_pso.oepc.i [2021-08-29 22:25:28,433 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36f61639f/00b8f6cd67a74e7285a577d99bfab33b/FLAG0d09ef23e [2021-08-29 22:25:29,023 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 22:25:29,026 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe034_pso.oepc.i [2021-08-29 22:25:29,046 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36f61639f/00b8f6cd67a74e7285a577d99bfab33b/FLAG0d09ef23e [2021-08-29 22:25:29,433 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36f61639f/00b8f6cd67a74e7285a577d99bfab33b [2021-08-29 22:25:29,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 22:25:29,437 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 22:25:29,438 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 22:25:29,438 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 22:25:29,442 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 22:25:29,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 10:25:29" (1/1) ... [2021-08-29 22:25:29,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b6c0fb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:29, skipping insertion in model container [2021-08-29 22:25:29,444 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 10:25:29" (1/1) ... [2021-08-29 22:25:29,450 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 22:25:29,497 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 22:25:29,637 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/safe034_pso.oepc.i[950,963] [2021-08-29 22:25:29,870 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 22:25:29,880 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 22:25:29,894 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/safe034_pso.oepc.i[950,963] [2021-08-29 22:25:29,958 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 22:25:29,997 INFO L208 MainTranslator]: Completed translation [2021-08-29 22:25:29,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:29 WrapperNode [2021-08-29 22:25:29,998 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 22:25:29,999 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 22:25:29,999 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 22:25:30,000 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 22:25:30,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:29" (1/1) ... [2021-08-29 22:25:30,020 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:29" (1/1) ... [2021-08-29 22:25:30,068 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 22:25:30,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 22:25:30,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 22:25:30,070 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 22:25:30,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:29" (1/1) ... [2021-08-29 22:25:30,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:29" (1/1) ... [2021-08-29 22:25:30,096 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:29" (1/1) ... [2021-08-29 22:25:30,106 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:29" (1/1) ... [2021-08-29 22:25:30,113 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:29" (1/1) ... [2021-08-29 22:25:30,131 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:29" (1/1) ... [2021-08-29 22:25:30,133 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:29" (1/1) ... [2021-08-29 22:25:30,137 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 22:25:30,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 22:25:30,138 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 22:25:30,138 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 22:25:30,139 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:29" (1/1) ... [2021-08-29 22:25:30,152 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 22:25:30,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 22:25:30,174 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) [2021-08-29 22:25:30,198 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 [2021-08-29 22:25:30,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-29 22:25:30,216 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-29 22:25:30,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 22:25:30,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-29 22:25:30,217 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-29 22:25:30,217 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-29 22:25:30,218 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-29 22:25:30,218 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-29 22:25:30,218 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-29 22:25:30,218 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-29 22:25:30,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 22:25:30,218 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-29 22:25:30,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 22:25:30,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 22:25:30,220 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-29 22:25:30,914 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 22:25:30,914 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-08-29 22:25:30,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 10:25:30 BoogieIcfgContainer [2021-08-29 22:25:30,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 22:25:30,918 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 22:25:30,918 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 22:25:30,920 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 22:25:30,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 10:25:29" (1/3) ... [2021-08-29 22:25:30,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18b9508f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 10:25:30, skipping insertion in model container [2021-08-29 22:25:30,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:29" (2/3) ... [2021-08-29 22:25:30,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18b9508f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 10:25:30, skipping insertion in model container [2021-08-29 22:25:30,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 10:25:30" (3/3) ... [2021-08-29 22:25:30,930 INFO L111 eAbstractionObserver]: Analyzing ICFG safe034_pso.oepc.i [2021-08-29 22:25:30,934 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-29 22:25:30,934 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 22:25:30,934 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-08-29 22:25:30,934 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-29 22:25:30,982 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,982 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,983 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,983 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,983 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,983 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,983 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,984 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,984 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,984 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,984 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,984 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,985 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,985 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,985 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,985 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,986 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,986 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,987 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,987 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,987 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,987 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,988 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,988 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,988 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,988 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,988 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,989 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,989 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,989 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,990 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,991 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,991 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,991 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,992 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,992 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,992 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,992 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,992 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,993 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,993 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,993 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,993 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,993 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,993 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,994 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,994 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,994 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,994 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,994 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,994 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,995 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,995 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,995 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,995 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,996 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,996 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,996 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,999 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:30,999 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,000 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,000 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,000 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,000 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,000 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,000 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,001 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,001 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,001 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,002 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,002 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,002 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,003 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,003 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,003 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,003 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,004 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,004 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,004 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,004 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,004 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,005 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,005 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,005 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,005 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,005 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,005 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,006 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,007 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,009 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,009 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,009 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,010 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,010 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,010 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,011 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,013 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,013 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,020 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,020 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,021 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,021 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,021 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,022 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,022 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,022 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,022 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,022 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,023 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,024 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,024 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,024 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,025 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,025 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,025 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,025 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,025 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,026 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,026 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,026 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,026 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,026 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,026 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,027 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,027 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,027 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,027 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,028 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,028 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,028 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,028 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,029 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,029 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,029 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,033 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,033 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,033 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,034 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,034 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,034 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,034 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,034 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,035 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,035 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,035 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,035 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,036 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,037 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,037 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,037 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,038 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,038 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,039 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,039 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,039 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,039 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,039 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,040 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,040 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,040 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,041 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,041 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,041 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,041 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,041 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,042 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,042 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,042 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,042 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,042 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,043 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,043 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,043 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,043 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,043 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,043 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,044 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:31,044 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-29 22:25:31,097 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 22:25:31,113 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 [2021-08-29 22:25:31,116 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-08-29 22:25:31,129 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-08-29 22:25:31,138 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 105 transitions, 225 flow [2021-08-29 22:25:31,140 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 113 places, 105 transitions, 225 flow [2021-08-29 22:25:31,143 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 113 places, 105 transitions, 225 flow [2021-08-29 22:25:31,200 INFO L129 PetriNetUnfolder]: 2/102 cut-off events. [2021-08-29 22:25:31,200 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-29 22:25:31,205 INFO L84 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 102 events. 2/102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 66. Up to 2 conditions per place. [2021-08-29 22:25:31,211 INFO L116 LiptonReduction]: Number of co-enabled transitions 1636 [2021-08-29 22:25:35,690 INFO L131 LiptonReduction]: Checked pairs total: 3538 [2021-08-29 22:25:35,690 INFO L133 LiptonReduction]: Total number of compositions: 88 [2021-08-29 22:25:35,700 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 26 transitions, 67 flow [2021-08-29 22:25:35,751 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 554 states, 551 states have (on average 3.252268602540835) internal successors, (1792), 553 states have internal predecessors, (1792), 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) [2021-08-29 22:25:35,756 INFO L276 IsEmpty]: Start isEmpty. Operand has 554 states, 551 states have (on average 3.252268602540835) internal successors, (1792), 553 states have internal predecessors, (1792), 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) [2021-08-29 22:25:35,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-29 22:25:35,761 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:25:35,762 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:25:35,762 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-08-29 22:25:35,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:25:35,767 INFO L82 PathProgramCache]: Analyzing trace with hash -631619251, now seen corresponding path program 1 times [2021-08-29 22:25:35,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:25:35,775 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179094940] [2021-08-29 22:25:35,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:25:35,776 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:25:35,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:25:36,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:25:36,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:25:36,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179094940] [2021-08-29 22:25:36,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179094940] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:25:36,064 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:25:36,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-08-29 22:25:36,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632539164] [2021-08-29 22:25:36,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 22:25:36,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:25:36,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 22:25:36,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 22:25:36,091 INFO L87 Difference]: Start difference. First operand has 554 states, 551 states have (on average 3.252268602540835) internal successors, (1792), 553 states have internal predecessors, (1792), 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 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-08-29 22:25:36,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:25:36,176 INFO L93 Difference]: Finished difference Result 458 states and 1376 transitions. [2021-08-29 22:25:36,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 22:25:36,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2021-08-29 22:25:36,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:25:36,205 INFO L225 Difference]: With dead ends: 458 [2021-08-29 22:25:36,205 INFO L226 Difference]: Without dead ends: 442 [2021-08-29 22:25:36,206 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.23ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 22:25:36,212 INFO L928 BasicCegarLoop]: 12 mSDtfsCounter, 9 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.89ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.39ms IncrementalHoareTripleChecker+Time [2021-08-29 22:25:36,213 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 20 Invalid, 17 Unknown, 0 Unchecked, 0.89ms Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 28.39ms Time] [2021-08-29 22:25:36,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2021-08-29 22:25:36,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2021-08-29 22:25:36,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 441 states have (on average 3.0294784580498866) internal successors, (1336), 441 states have internal predecessors, (1336), 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) [2021-08-29 22:25:36,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 1336 transitions. [2021-08-29 22:25:36,278 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 1336 transitions. Word has length 7 [2021-08-29 22:25:36,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:25:36,279 INFO L470 AbstractCegarLoop]: Abstraction has 442 states and 1336 transitions. [2021-08-29 22:25:36,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-08-29 22:25:36,279 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 1336 transitions. [2021-08-29 22:25:36,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-29 22:25:36,286 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:25:36,286 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:25:36,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 22:25:36,286 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-08-29 22:25:36,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:25:36,287 INFO L82 PathProgramCache]: Analyzing trace with hash -315329082, now seen corresponding path program 1 times [2021-08-29 22:25:36,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:25:36,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662705734] [2021-08-29 22:25:36,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:25:36,288 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:25:36,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:25:36,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:25:36,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:25:36,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662705734] [2021-08-29 22:25:36,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662705734] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:25:36,397 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:25:36,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 22:25:36,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473038480] [2021-08-29 22:25:36,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 22:25:36,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:25:36,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 22:25:36,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 22:25:36,399 INFO L87 Difference]: Start difference. First operand 442 states and 1336 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-08-29 22:25:36,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:25:36,457 INFO L93 Difference]: Finished difference Result 506 states and 1468 transitions. [2021-08-29 22:25:36,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 22:25:36,458 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2021-08-29 22:25:36,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:25:36,461 INFO L225 Difference]: With dead ends: 506 [2021-08-29 22:25:36,461 INFO L226 Difference]: Without dead ends: 426 [2021-08-29 22:25:36,462 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.70ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:25:36,463 INFO L928 BasicCegarLoop]: 18 mSDtfsCounter, 21 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.07ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.27ms IncrementalHoareTripleChecker+Time [2021-08-29 22:25:36,463 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 44 Invalid, 34 Unknown, 0 Unchecked, 1.07ms Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 40.27ms Time] [2021-08-29 22:25:36,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2021-08-29 22:25:36,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 426. [2021-08-29 22:25:36,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 425 states have (on average 3.0023529411764707) internal successors, (1276), 425 states have internal predecessors, (1276), 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) [2021-08-29 22:25:36,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 1276 transitions. [2021-08-29 22:25:36,484 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 1276 transitions. Word has length 10 [2021-08-29 22:25:36,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:25:36,485 INFO L470 AbstractCegarLoop]: Abstraction has 426 states and 1276 transitions. [2021-08-29 22:25:36,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-08-29 22:25:36,485 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 1276 transitions. [2021-08-29 22:25:36,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-29 22:25:36,487 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:25:36,487 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:25:36,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 22:25:36,487 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-08-29 22:25:36,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:25:36,488 INFO L82 PathProgramCache]: Analyzing trace with hash -1214226504, now seen corresponding path program 1 times [2021-08-29 22:25:36,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:25:36,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881919133] [2021-08-29 22:25:36,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:25:36,489 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:25:36,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:25:36,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:25:36,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:25:36,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881919133] [2021-08-29 22:25:36,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881919133] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:25:36,549 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:25:36,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 22:25:36,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927996143] [2021-08-29 22:25:36,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 22:25:36,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:25:36,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 22:25:36,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 22:25:36,551 INFO L87 Difference]: Start difference. First operand 426 states and 1276 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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) [2021-08-29 22:25:36,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:25:36,631 INFO L93 Difference]: Finished difference Result 374 states and 968 transitions. [2021-08-29 22:25:36,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 22:25:36,632 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2021-08-29 22:25:36,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:25:36,634 INFO L225 Difference]: With dead ends: 374 [2021-08-29 22:25:36,634 INFO L226 Difference]: Without dead ends: 294 [2021-08-29 22:25:36,634 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.34ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:25:36,635 INFO L928 BasicCegarLoop]: 12 mSDtfsCounter, 24 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.04ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 64.28ms IncrementalHoareTripleChecker+Time [2021-08-29 22:25:36,636 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 31 Invalid, 50 Unknown, 0 Unchecked, 1.04ms Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 64.28ms Time] [2021-08-29 22:25:36,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2021-08-29 22:25:36,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2021-08-29 22:25:36,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 293 states have (on average 2.5529010238907848) internal successors, (748), 293 states have internal predecessors, (748), 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) [2021-08-29 22:25:36,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 748 transitions. [2021-08-29 22:25:36,646 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 748 transitions. Word has length 11 [2021-08-29 22:25:36,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:25:36,646 INFO L470 AbstractCegarLoop]: Abstraction has 294 states and 748 transitions. [2021-08-29 22:25:36,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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) [2021-08-29 22:25:36,647 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 748 transitions. [2021-08-29 22:25:36,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-29 22:25:36,648 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:25:36,648 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:25:36,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-29 22:25:36,657 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-08-29 22:25:36,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:25:36,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1298873435, now seen corresponding path program 1 times [2021-08-29 22:25:36,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:25:36,658 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982996408] [2021-08-29 22:25:36,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:25:36,658 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:25:36,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:25:36,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:25:36,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:25:36,717 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982996408] [2021-08-29 22:25:36,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982996408] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:25:36,717 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:25:36,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 22:25:36,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267499120] [2021-08-29 22:25:36,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 22:25:36,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:25:36,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 22:25:36,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:25:36,719 INFO L87 Difference]: Start difference. First operand 294 states and 748 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) [2021-08-29 22:25:36,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:25:36,814 INFO L93 Difference]: Finished difference Result 210 states and 473 transitions. [2021-08-29 22:25:36,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-29 22:25:36,815 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 [2021-08-29 22:25:36,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:25:36,816 INFO L225 Difference]: With dead ends: 210 [2021-08-29 22:25:36,816 INFO L226 Difference]: Without dead ends: 166 [2021-08-29 22:25:36,816 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 13.96ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-29 22:25:36,817 INFO L928 BasicCegarLoop]: 12 mSDtfsCounter, 41 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 67.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.84ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 79.66ms IncrementalHoareTripleChecker+Time [2021-08-29 22:25:36,817 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 41 Invalid, 69 Unknown, 0 Unchecked, 1.84ms Time], IncrementalHoareTripleChecker [6 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 79.66ms Time] [2021-08-29 22:25:36,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-08-29 22:25:36,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2021-08-29 22:25:36,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 165 states have (on average 2.206060606060606) internal successors, (364), 165 states have internal predecessors, (364), 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) [2021-08-29 22:25:36,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 364 transitions. [2021-08-29 22:25:36,823 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 364 transitions. Word has length 13 [2021-08-29 22:25:36,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:25:36,824 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 364 transitions. [2021-08-29 22:25:36,824 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) [2021-08-29 22:25:36,824 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 364 transitions. [2021-08-29 22:25:36,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-29 22:25:36,825 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:25:36,825 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:25:36,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-29 22:25:36,826 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-08-29 22:25:36,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:25:36,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1964821795, now seen corresponding path program 1 times [2021-08-29 22:25:36,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:25:36,827 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985532812] [2021-08-29 22:25:36,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:25:36,827 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:25:36,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:25:36,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:25:36,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:25:36,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985532812] [2021-08-29 22:25:36,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985532812] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:25:36,894 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:25:36,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 22:25:36,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939102418] [2021-08-29 22:25:36,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 22:25:36,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:25:36,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 22:25:36,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:25:36,895 INFO L87 Difference]: Start difference. First operand 166 states and 364 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-08-29 22:25:36,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:25:36,987 INFO L93 Difference]: Finished difference Result 276 states and 579 transitions. [2021-08-29 22:25:36,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-29 22:25:36,988 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2021-08-29 22:25:36,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:25:36,992 INFO L225 Difference]: With dead ends: 276 [2021-08-29 22:25:36,993 INFO L226 Difference]: Without dead ends: 204 [2021-08-29 22:25:36,993 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 37.46ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-08-29 22:25:36,994 INFO L928 BasicCegarLoop]: 25 mSDtfsCounter, 46 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.25ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.26ms IncrementalHoareTripleChecker+Time [2021-08-29 22:25:36,994 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 70 Invalid, 60 Unknown, 0 Unchecked, 1.25ms Time], IncrementalHoareTripleChecker [4 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 55.26ms Time] [2021-08-29 22:25:36,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-08-29 22:25:36,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 182. [2021-08-29 22:25:37,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 181 states have (on average 2.0386740331491713) internal successors, (369), 181 states have internal predecessors, (369), 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) [2021-08-29 22:25:37,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 369 transitions. [2021-08-29 22:25:37,001 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 369 transitions. Word has length 16 [2021-08-29 22:25:37,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:25:37,001 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 369 transitions. [2021-08-29 22:25:37,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-08-29 22:25:37,001 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 369 transitions. [2021-08-29 22:25:37,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-29 22:25:37,002 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:25:37,002 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:25:37,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-29 22:25:37,003 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-08-29 22:25:37,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:25:37,003 INFO L82 PathProgramCache]: Analyzing trace with hash -406781859, now seen corresponding path program 2 times [2021-08-29 22:25:37,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:25:37,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019602986] [2021-08-29 22:25:37,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:25:37,004 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:25:37,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:25:37,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:25:37,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:25:37,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019602986] [2021-08-29 22:25:37,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019602986] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:25:37,062 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:25:37,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 22:25:37,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597773779] [2021-08-29 22:25:37,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 22:25:37,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:25:37,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 22:25:37,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:25:37,063 INFO L87 Difference]: Start difference. First operand 182 states and 369 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-08-29 22:25:37,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:25:37,137 INFO L93 Difference]: Finished difference Result 251 states and 495 transitions. [2021-08-29 22:25:37,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 22:25:37,137 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2021-08-29 22:25:37,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:25:37,138 INFO L225 Difference]: With dead ends: 251 [2021-08-29 22:25:37,139 INFO L226 Difference]: Without dead ends: 186 [2021-08-29 22:25:37,139 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.60ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-29 22:25:37,140 INFO L928 BasicCegarLoop]: 26 mSDtfsCounter, 32 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.72ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 58.59ms IncrementalHoareTripleChecker+Time [2021-08-29 22:25:37,140 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 72 Invalid, 55 Unknown, 0 Unchecked, 0.72ms Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 58.59ms Time] [2021-08-29 22:25:37,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2021-08-29 22:25:37,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 182. [2021-08-29 22:25:37,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 181 states have (on average 2.0) internal successors, (362), 181 states have internal predecessors, (362), 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) [2021-08-29 22:25:37,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 362 transitions. [2021-08-29 22:25:37,146 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 362 transitions. Word has length 16 [2021-08-29 22:25:37,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:25:37,146 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 362 transitions. [2021-08-29 22:25:37,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-08-29 22:25:37,146 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 362 transitions. [2021-08-29 22:25:37,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-29 22:25:37,147 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:25:37,147 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:25:37,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-29 22:25:37,148 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-08-29 22:25:37,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:25:37,148 INFO L82 PathProgramCache]: Analyzing trace with hash -243769341, now seen corresponding path program 3 times [2021-08-29 22:25:37,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:25:37,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204020318] [2021-08-29 22:25:37,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:25:37,149 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:25:37,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:25:37,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:25:37,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:25:37,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204020318] [2021-08-29 22:25:37,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204020318] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:25:37,218 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:25:37,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-29 22:25:37,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354552033] [2021-08-29 22:25:37,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 22:25:37,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:25:37,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 22:25:37,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-29 22:25:37,220 INFO L87 Difference]: Start difference. First operand 182 states and 362 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-08-29 22:25:37,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:25:37,287 INFO L93 Difference]: Finished difference Result 150 states and 298 transitions. [2021-08-29 22:25:37,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-29 22:25:37,287 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2021-08-29 22:25:37,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:25:37,288 INFO L225 Difference]: With dead ends: 150 [2021-08-29 22:25:37,288 INFO L226 Difference]: Without dead ends: 80 [2021-08-29 22:25:37,288 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 16.43ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-08-29 22:25:37,289 INFO L928 BasicCegarLoop]: 12 mSDtfsCounter, 39 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.72ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.33ms IncrementalHoareTripleChecker+Time [2021-08-29 22:25:37,289 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 38 Invalid, 65 Unknown, 0 Unchecked, 0.72ms Time], IncrementalHoareTripleChecker [9 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 55.33ms Time] [2021-08-29 22:25:37,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-08-29 22:25:37,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 68. [2021-08-29 22:25:37,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.8507462686567164) internal successors, (124), 67 states have internal predecessors, (124), 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) [2021-08-29 22:25:37,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 124 transitions. [2021-08-29 22:25:37,293 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 124 transitions. Word has length 16 [2021-08-29 22:25:37,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:25:37,293 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 124 transitions. [2021-08-29 22:25:37,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-08-29 22:25:37,293 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 124 transitions. [2021-08-29 22:25:37,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-29 22:25:37,294 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:25:37,294 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:25:37,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-29 22:25:37,295 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-08-29 22:25:37,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:25:37,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1639880908, now seen corresponding path program 1 times [2021-08-29 22:25:37,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:25:37,295 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246781453] [2021-08-29 22:25:37,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:25:37,296 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:25:37,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:25:37,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:25:37,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:25:37,357 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246781453] [2021-08-29 22:25:37,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246781453] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:25:37,357 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:25:37,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 22:25:37,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593589845] [2021-08-29 22:25:37,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 22:25:37,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:25:37,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 22:25:37,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:25:37,359 INFO L87 Difference]: Start difference. First operand 68 states and 124 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2021-08-29 22:25:37,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:25:37,400 INFO L93 Difference]: Finished difference Result 98 states and 178 transitions. [2021-08-29 22:25:37,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 22:25:37,401 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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 20 [2021-08-29 22:25:37,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:25:37,401 INFO L225 Difference]: With dead ends: 98 [2021-08-29 22:25:37,401 INFO L226 Difference]: Without dead ends: 42 [2021-08-29 22:25:37,402 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 12.30ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-29 22:25:37,402 INFO L928 BasicCegarLoop]: 15 mSDtfsCounter, 16 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.51ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.85ms IncrementalHoareTripleChecker+Time [2021-08-29 22:25:37,403 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 49 Invalid, 40 Unknown, 0 Unchecked, 0.51ms Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 33.85ms Time] [2021-08-29 22:25:37,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-08-29 22:25:37,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-08-29 22:25:37,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.6585365853658536) internal successors, (68), 41 states have internal predecessors, (68), 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) [2021-08-29 22:25:37,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 68 transitions. [2021-08-29 22:25:37,405 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 68 transitions. Word has length 20 [2021-08-29 22:25:37,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:25:37,405 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 68 transitions. [2021-08-29 22:25:37,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2021-08-29 22:25:37,405 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 68 transitions. [2021-08-29 22:25:37,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-29 22:25:37,406 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:25:37,406 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:25:37,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-29 22:25:37,406 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-08-29 22:25:37,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:25:37,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1459564756, now seen corresponding path program 2 times [2021-08-29 22:25:37,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:25:37,407 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609752271] [2021-08-29 22:25:37,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:25:37,408 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:25:37,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:25:37,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:25:37,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:25:37,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609752271] [2021-08-29 22:25:37,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609752271] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:25:37,521 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:25:37,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-29 22:25:37,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115338905] [2021-08-29 22:25:37,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 22:25:37,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:25:37,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 22:25:37,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-29 22:25:37,523 INFO L87 Difference]: Start difference. First operand 42 states and 68 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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) [2021-08-29 22:25:37,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:25:37,582 INFO L93 Difference]: Finished difference Result 53 states and 83 transitions. [2021-08-29 22:25:37,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-29 22:25:37,583 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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 20 [2021-08-29 22:25:37,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:25:37,583 INFO L225 Difference]: With dead ends: 53 [2021-08-29 22:25:37,584 INFO L226 Difference]: Without dead ends: 30 [2021-08-29 22:25:37,584 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 30.67ms TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-08-29 22:25:37,585 INFO L928 BasicCegarLoop]: 17 mSDtfsCounter, 9 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.63ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.64ms IncrementalHoareTripleChecker+Time [2021-08-29 22:25:37,585 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 68 Invalid, 55 Unknown, 0 Unchecked, 0.63ms Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 42.64ms Time] [2021-08-29 22:25:37,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-08-29 22:25:37,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-08-29 22:25:37,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 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) [2021-08-29 22:25:37,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2021-08-29 22:25:37,587 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 20 [2021-08-29 22:25:37,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:25:37,587 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2021-08-29 22:25:37,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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) [2021-08-29 22:25:37,588 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2021-08-29 22:25:37,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-29 22:25:37,588 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:25:37,589 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:25:37,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-29 22:25:37,589 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-08-29 22:25:37,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:25:37,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1270737666, now seen corresponding path program 3 times [2021-08-29 22:25:37,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:25:37,590 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206489704] [2021-08-29 22:25:37,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:25:37,590 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:25:37,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 22:25:37,632 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-29 22:25:37,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 22:25:37,733 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-29 22:25:37,734 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-29 22:25:37,735 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2021-08-29 22:25:37,736 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2021-08-29 22:25:37,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 6 remaining) [2021-08-29 22:25:37,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 6 remaining) [2021-08-29 22:25:37,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 6 remaining) [2021-08-29 22:25:37,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2021-08-29 22:25:37,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-29 22:25:37,743 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-29 22:25:37,743 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 22:25:37,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 10:25:37 BasicIcfg [2021-08-29 22:25:37,828 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 22:25:37,828 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 22:25:37,828 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 22:25:37,828 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 22:25:37,829 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 10:25:30" (3/4) ... [2021-08-29 22:25:37,830 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-29 22:25:37,903 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 22:25:37,903 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 22:25:37,904 INFO L158 Benchmark]: Toolchain (without parser) took 8467.23ms. Allocated memory was 48.2MB in the beginning and 125.8MB in the end (delta: 77.6MB). Free memory was 32.4MB in the beginning and 94.0MB in the end (delta: -61.6MB). Peak memory consumption was 73.2MB. Max. memory is 16.1GB. [2021-08-29 22:25:37,904 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 48.2MB. Free memory was 30.0MB in the beginning and 30.0MB in the end (delta: 31.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 22:25:37,904 INFO L158 Benchmark]: CACSL2BoogieTranslator took 560.61ms. Allocated memory was 48.2MB in the beginning and 58.7MB in the end (delta: 10.5MB). Free memory was 32.3MB in the beginning and 29.4MB in the end (delta: 2.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-29 22:25:37,905 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.08ms. Allocated memory is still 58.7MB. Free memory was 29.4MB in the beginning and 40.5MB in the end (delta: -11.1MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2021-08-29 22:25:37,905 INFO L158 Benchmark]: Boogie Preprocessor took 67.53ms. Allocated memory is still 58.7MB. Free memory was 40.5MB in the beginning and 38.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 22:25:37,905 INFO L158 Benchmark]: RCFGBuilder took 779.28ms. Allocated memory is still 58.7MB. Free memory was 38.4MB in the beginning and 21.7MB in the end (delta: 16.7MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. [2021-08-29 22:25:37,906 INFO L158 Benchmark]: TraceAbstraction took 6909.53ms. Allocated memory was 58.7MB in the beginning and 125.8MB in the end (delta: 67.1MB). Free memory was 21.1MB in the beginning and 49.7MB in the end (delta: -28.6MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. [2021-08-29 22:25:37,906 INFO L158 Benchmark]: Witness Printer took 75.17ms. Allocated memory is still 125.8MB. Free memory was 49.7MB in the beginning and 94.0MB in the end (delta: -44.3MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2021-08-29 22:25:37,908 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 48.2MB. Free memory was 30.0MB in the beginning and 30.0MB in the end (delta: 31.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 560.61ms. Allocated memory was 48.2MB in the beginning and 58.7MB in the end (delta: 10.5MB). Free memory was 32.3MB in the beginning and 29.4MB in the end (delta: 2.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.08ms. Allocated memory is still 58.7MB. Free memory was 29.4MB in the beginning and 40.5MB in the end (delta: -11.1MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.53ms. Allocated memory is still 58.7MB. Free memory was 40.5MB in the beginning and 38.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 779.28ms. Allocated memory is still 58.7MB. Free memory was 38.4MB in the beginning and 21.7MB in the end (delta: 16.7MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6909.53ms. Allocated memory was 58.7MB in the beginning and 125.8MB in the end (delta: 67.1MB). Free memory was 21.1MB in the beginning and 49.7MB in the end (delta: -28.6MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. * Witness Printer took 75.17ms. Allocated memory is still 125.8MB. Free memory was 49.7MB in the beginning and 94.0MB in the end (delta: -44.3MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4550.18ms, 113 PlacesBefore, 35 PlacesAfterwards, 105 TransitionsBefore, 26 TransitionsAfterwards, 1636 CoEnabledTransitionPairs, 6 FixpointIterations, 38 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 88 TotalNumberOfCompositions, 3538 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1858, positive: 1738, positive conditional: 0, positive unconditional: 1738, negative: 120, negative conditional: 0, negative unconditional: 120, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1062, positive: 1029, positive conditional: 0, positive unconditional: 1029, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1062, positive: 1012, positive conditional: 0, positive unconditional: 1012, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 50, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 245, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 214, negative conditional: 0, negative unconditional: 214, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1858, positive: 709, positive conditional: 0, positive unconditional: 709, negative: 87, negative conditional: 0, negative unconditional: 87, unknown: 1062, unknown conditional: 0, unknown unconditional: 1062] , Statistics on independence cache: Total cache size (in pairs): 100, Positive cache size: 86, Positive conditional cache size: 0, Positive unconditional cache size: 86, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms 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; [L714] 0 _Bool main$tmp_guard0; [L715] 0 _Bool main$tmp_guard1; [L717] 0 int x = 0; [L719] 0 int y = 0; [L720] 0 _Bool y$flush_delayed; [L721] 0 int y$mem_tmp; [L722] 0 _Bool y$r_buff0_thd0; [L723] 0 _Bool y$r_buff0_thd1; [L724] 0 _Bool y$r_buff0_thd2; [L725] 0 _Bool y$r_buff0_thd3; [L726] 0 _Bool y$r_buff1_thd0; [L727] 0 _Bool y$r_buff1_thd1; [L728] 0 _Bool y$r_buff1_thd2; [L729] 0 _Bool y$r_buff1_thd3; [L730] 0 _Bool y$read_delayed; [L731] 0 int *y$read_delayed_var; [L732] 0 int y$w_buff0; [L733] 0 _Bool y$w_buff0_used; [L734] 0 int y$w_buff1; [L735] 0 _Bool y$w_buff1_used; [L737] 0 int z = 0; [L738] 0 _Bool weak$$choice0; [L739] 0 _Bool weak$$choice2; [L827] 0 pthread_t t2583; [L828] FCALL, FORK 0 pthread_create(&t2583, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L829] 0 pthread_t t2584; [L830] FCALL, FORK 0 pthread_create(&t2584, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_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, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L831] 0 pthread_t t2585; [L832] FCALL, FORK 0 pthread_create(&t2585, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_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, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L790] 3 y$w_buff1 = y$w_buff0 [L791] 3 y$w_buff0 = 1 [L792] 3 y$w_buff1_used = y$w_buff0_used [L793] 3 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 3 !(!expression) [L795] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L796] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L797] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L798] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L799] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L802] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_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, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L743] 1 z = 2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_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=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L748] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_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=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L760] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_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=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L765] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L766] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L767] 2 y$flush_delayed = weak$$choice2 [L768] 2 y$mem_tmp = y [L769] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L769] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L770] EXPR 2 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L770] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L771] EXPR 2 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L771] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L772] EXPR 2 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L772] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L773] EXPR 2 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L773] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L774] EXPR 2 weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L774] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L775] EXPR 2 weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L775] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L776] 2 __unbuffered_p1_EAX = y [L777] EXPR 2 y$flush_delayed ? y$mem_tmp : y [L777] 2 y = y$flush_delayed ? y$mem_tmp : y [L778] 2 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L783] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L785] 2 return 0; [L753] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L755] 1 return 0; [L805] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L805] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L806] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L806] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L807] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L807] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L808] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L808] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L809] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L809] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L812] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L814] 3 return 0; [L834] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L3] COND FALSE 0 !(!cond) [L838] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L838] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L838] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L838] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L839] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L839] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L840] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L840] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L841] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L841] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L842] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L842] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L845] 0 main$tmp_guard1 = !(z == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p1_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, 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, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] - 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: 832]: 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: 828]: 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: 830]: 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, 130 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 6645.25ms, OverallIterations: 10, TraceHistogramMax: 1, EmptinessCheckTime: 22.98ms, AutomataDifference: 754.32ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 4634.75ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 237 SdHoareTripleChecker+Valid, 458.28ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 237 mSDsluCounter, 433 SdHoareTripleChecker+Invalid, 382.02ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 449 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 417 IncrementalHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 149 mSDtfsCounter, 417 mSolverCounterSat, 8.68ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 146.69ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=554occurred in iteration=0, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 102.80ms AutomataMinimizationTime, 9 MinimizatonAttempts, 38 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 37.20ms SsaConstructionTime, 264.12ms SatisfiabilityAnalysisTime, 524.12ms InterpolantComputationTime, 149 NumberOfCodeBlocks, 149 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 484 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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! [2021-08-29 22:25:37,956 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...