./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix031_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 997cd7c3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/mix031_tso.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 48d749ca9b98f73dbd327254f44e72bd7c20114b .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-997cd7c-m [2021-09-22 14:42:08,596 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-09-22 14:42:08,597 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-09-22 14:42:08,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-09-22 14:42:08,615 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-09-22 14:42:08,615 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-09-22 14:42:08,616 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-09-22 14:42:08,617 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-09-22 14:42:08,618 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-09-22 14:42:08,619 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-09-22 14:42:08,620 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-09-22 14:42:08,620 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-09-22 14:42:08,620 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-09-22 14:42:08,621 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-09-22 14:42:08,622 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-09-22 14:42:08,623 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-09-22 14:42:08,623 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-09-22 14:42:08,624 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-09-22 14:42:08,625 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-09-22 14:42:08,626 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-09-22 14:42:08,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-09-22 14:42:08,628 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-09-22 14:42:08,629 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-09-22 14:42:08,629 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-09-22 14:42:08,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-09-22 14:42:08,631 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-09-22 14:42:08,631 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-09-22 14:42:08,632 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-09-22 14:42:08,632 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-09-22 14:42:08,633 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-09-22 14:42:08,633 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-09-22 14:42:08,634 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-09-22 14:42:08,634 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-09-22 14:42:08,635 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-09-22 14:42:08,635 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-09-22 14:42:08,636 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-09-22 14:42:08,636 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-09-22 14:42:08,636 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-09-22 14:42:08,636 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-09-22 14:42:08,637 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-09-22 14:42:08,638 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-09-22 14:42:08,641 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-09-22 14:42:08,664 INFO L113 SettingsManager]: Loading preferences was successful [2021-09-22 14:42:08,665 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-09-22 14:42:08,665 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-09-22 14:42:08,665 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-09-22 14:42:08,667 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-09-22 14:42:08,667 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-09-22 14:42:08,667 INFO L138 SettingsManager]: * Use SBE=true [2021-09-22 14:42:08,667 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-09-22 14:42:08,667 INFO L138 SettingsManager]: * sizeof long=4 [2021-09-22 14:42:08,668 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-09-22 14:42:08,668 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-09-22 14:42:08,668 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-09-22 14:42:08,669 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-09-22 14:42:08,669 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-09-22 14:42:08,669 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-09-22 14:42:08,669 INFO L138 SettingsManager]: * sizeof long double=12 [2021-09-22 14:42:08,669 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-09-22 14:42:08,669 INFO L138 SettingsManager]: * Use constant arrays=true [2021-09-22 14:42:08,669 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-09-22 14:42:08,670 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-09-22 14:42:08,676 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-09-22 14:42:08,677 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-09-22 14:42:08,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-09-22 14:42:08,677 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-09-22 14:42:08,677 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-09-22 14:42:08,677 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-09-22 14:42:08,677 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-09-22 14:42:08,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-09-22 14:42:08,678 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-09-22 14:42:08,678 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-09-22 14:42:08,678 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48d749ca9b98f73dbd327254f44e72bd7c20114b [2021-09-22 14:42:08,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-09-22 14:42:08,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-09-22 14:42:08,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-09-22 14:42:08,910 INFO L271 PluginConnector]: Initializing CDTParser... [2021-09-22 14:42:08,911 INFO L275 PluginConnector]: CDTParser initialized [2021-09-22 14:42:08,911 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix031_tso.oepc.i [2021-09-22 14:42:08,955 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ceb6fb80/d0141b4420a94f3a9b88192151458e1f/FLAGca83e85c8 [2021-09-22 14:42:09,394 INFO L306 CDTParser]: Found 1 translation units. [2021-09-22 14:42:09,397 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix031_tso.oepc.i [2021-09-22 14:42:09,413 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ceb6fb80/d0141b4420a94f3a9b88192151458e1f/FLAGca83e85c8 [2021-09-22 14:42:09,773 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ceb6fb80/d0141b4420a94f3a9b88192151458e1f [2021-09-22 14:42:09,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-09-22 14:42:09,776 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-09-22 14:42:09,778 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-09-22 14:42:09,778 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-09-22 14:42:09,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-09-22 14:42:09,780 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.09 02:42:09" (1/1) ... [2021-09-22 14:42:09,782 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c1a7297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:09, skipping insertion in model container [2021-09-22 14:42:09,782 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.09 02:42:09" (1/1) ... [2021-09-22 14:42:09,786 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-09-22 14:42:09,830 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-09-22 14:42:09,944 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/mix031_tso.oepc.i[949,962] [2021-09-22 14:42:10,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-09-22 14:42:10,088 INFO L203 MainTranslator]: Completed pre-run [2021-09-22 14:42:10,099 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/mix031_tso.oepc.i[949,962] [2021-09-22 14:42:10,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-09-22 14:42:10,180 INFO L208 MainTranslator]: Completed translation [2021-09-22 14:42:10,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:10 WrapperNode [2021-09-22 14:42:10,182 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-09-22 14:42:10,183 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-09-22 14:42:10,184 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-09-22 14:42:10,184 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-09-22 14:42:10,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:10" (1/1) ... [2021-09-22 14:42:10,215 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:10" (1/1) ... [2021-09-22 14:42:10,240 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-09-22 14:42:10,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-09-22 14:42:10,241 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-09-22 14:42:10,241 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-09-22 14:42:10,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:10" (1/1) ... [2021-09-22 14:42:10,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:10" (1/1) ... [2021-09-22 14:42:10,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:10" (1/1) ... [2021-09-22 14:42:10,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:10" (1/1) ... [2021-09-22 14:42:10,267 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:10" (1/1) ... [2021-09-22 14:42:10,278 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:10" (1/1) ... [2021-09-22 14:42:10,281 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:10" (1/1) ... [2021-09-22 14:42:10,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-09-22 14:42:10,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-09-22 14:42:10,290 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-09-22 14:42:10,290 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-09-22 14:42:10,290 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:10" (1/1) ... [2021-09-22 14:42:10,295 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-09-22 14:42:10,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-09-22 14:42:10,311 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-09-22 14:42:10,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-09-22 14:42:10,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-09-22 14:42:10,343 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-09-22 14:42:10,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-09-22 14:42:10,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-09-22 14:42:10,344 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-09-22 14:42:10,344 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-09-22 14:42:10,344 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-09-22 14:42:10,344 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-09-22 14:42:10,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-09-22 14:42:10,344 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-09-22 14:42:10,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-09-22 14:42:10,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-09-22 14:42:10,345 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-09-22 14:42:11,505 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-09-22 14:42:11,505 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-09-22 14:42:11,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 02:42:11 BoogieIcfgContainer [2021-09-22 14:42:11,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-09-22 14:42:11,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-09-22 14:42:11,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-09-22 14:42:11,510 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-09-22 14:42:11,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.09 02:42:09" (1/3) ... [2021-09-22 14:42:11,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74e21aee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.09 02:42:11, skipping insertion in model container [2021-09-22 14:42:11,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:10" (2/3) ... [2021-09-22 14:42:11,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74e21aee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.09 02:42:11, skipping insertion in model container [2021-09-22 14:42:11,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 02:42:11" (3/3) ... [2021-09-22 14:42:11,513 INFO L111 eAbstractionObserver]: Analyzing ICFG mix031_tso.oepc.i [2021-09-22 14:42:11,516 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-09-22 14:42:11,516 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-09-22 14:42:11,516 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-09-22 14:42:11,516 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-09-22 14:42:11,540 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,540 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,540 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,541 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,541 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,541 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,542 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,542 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,542 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,542 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,542 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,542 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,543 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,543 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,543 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,543 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,543 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,544 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,544 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,544 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,544 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,545 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,545 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,545 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,545 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,545 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,546 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,546 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,546 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,546 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,547 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,547 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,547 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,547 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,548 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,549 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,549 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,549 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,549 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,549 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,549 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,550 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,550 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,550 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,550 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,550 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,551 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,551 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,553 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,553 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,553 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,554 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,554 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,554 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,554 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,554 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,554 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,554 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,555 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,555 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,555 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,555 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,555 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,555 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,555 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,555 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,556 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,556 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,556 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,556 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,556 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,557 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,557 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,557 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,557 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,557 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,557 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,557 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,558 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,558 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,561 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,561 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,561 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,561 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,561 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,562 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,562 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,562 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,562 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,562 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,563 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,565 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,565 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,565 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,565 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,566 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,566 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,567 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,567 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,567 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,571 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,571 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,571 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,571 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,571 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,571 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,572 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,572 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,572 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,572 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,572 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,572 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,572 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,572 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,572 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,572 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,573 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,573 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,574 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,574 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,574 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,574 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,574 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,574 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,575 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,582 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,582 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,582 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,582 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,582 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,582 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,582 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,582 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,583 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,583 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,583 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,585 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,585 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,585 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,585 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,585 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,585 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,585 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,585 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,585 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,585 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,585 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,585 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,587 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,587 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,587 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,587 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,587 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,587 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,587 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,587 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,587 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,587 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,588 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,588 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,588 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,588 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,588 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,588 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,588 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,588 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,588 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,588 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,588 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,588 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,588 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,588 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,588 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,588 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,588 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,589 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,589 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,589 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,589 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,589 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,589 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:11,590 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-09-22 14:42:11,616 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-09-22 14:42:11,620 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-09-22 14:42:11,620 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-09-22 14:42:11,628 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-09-22 14:42:11,638 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 95 transitions, 200 flow [2021-09-22 14:42:11,640 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 95 transitions, 200 flow [2021-09-22 14:42:11,641 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 100 places, 95 transitions, 200 flow [2021-09-22 14:42:11,663 INFO L129 PetriNetUnfolder]: 2/93 cut-off events. [2021-09-22 14:42:11,663 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-09-22 14:42:11,665 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 93 events. 2/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2021-09-22 14:42:11,667 INFO L116 LiptonReduction]: Number of co-enabled transitions 1308 [2021-09-22 14:42:15,771 INFO L131 LiptonReduction]: Checked pairs total: 3377 [2021-09-22 14:42:15,771 INFO L133 LiptonReduction]: Total number of compositions: 85 [2021-09-22 14:42:15,777 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 21 transitions, 52 flow [2021-09-22 14:42:15,802 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 196 states, 193 states have (on average 2.4145077720207255) internal successors, (466), 195 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:15,806 INFO L276 IsEmpty]: Start isEmpty. Operand has 196 states, 193 states have (on average 2.4145077720207255) internal successors, (466), 195 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:15,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-09-22 14:42:15,809 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:42:15,809 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-09-22 14:42:15,809 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-09-22 14:42:15,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:42:15,813 INFO L82 PathProgramCache]: Analyzing trace with hash 962429, now seen corresponding path program 1 times [2021-09-22 14:42:15,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:42:15,819 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546107638] [2021-09-22 14:42:15,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:42:15,820 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:42:15,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:42:15,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:42:15,947 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:42:15,947 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546107638] [2021-09-22 14:42:15,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546107638] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:42:15,947 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:42:15,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-09-22 14:42:15,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012951287] [2021-09-22 14:42:15,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-09-22 14:42:15,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:42:15,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-09-22 14:42:15,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-09-22 14:42:15,961 INFO L87 Difference]: Start difference. First operand has 196 states, 193 states have (on average 2.4145077720207255) internal successors, (466), 195 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:15,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:42:15,992 INFO L93 Difference]: Finished difference Result 164 states and 383 transitions. [2021-09-22 14:42:15,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-09-22 14:42:15,993 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-09-22 14:42:15,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:42:15,999 INFO L225 Difference]: With dead ends: 164 [2021-09-22 14:42:16,000 INFO L226 Difference]: Without dead ends: 158 [2021-09-22 14:42:16,000 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-09-22 14:42:16,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-09-22 14:42:16,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2021-09-22 14:42:16,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 157 states have (on average 2.3694267515923566) internal successors, (372), 157 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:16,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 372 transitions. [2021-09-22 14:42:16,028 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 372 transitions. Word has length 3 [2021-09-22 14:42:16,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:42:16,028 INFO L470 AbstractCegarLoop]: Abstraction has 158 states and 372 transitions. [2021-09-22 14:42:16,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:16,028 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 372 transitions. [2021-09-22 14:42:16,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-09-22 14:42:16,029 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:42:16,029 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:42:16,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-09-22 14:42:16,029 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-09-22 14:42:16,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:42:16,030 INFO L82 PathProgramCache]: Analyzing trace with hash -155754248, now seen corresponding path program 1 times [2021-09-22 14:42:16,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:42:16,030 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007907726] [2021-09-22 14:42:16,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:42:16,030 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:42:16,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:42:16,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:42:16,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:42:16,097 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007907726] [2021-09-22 14:42:16,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007907726] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:42:16,097 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:42:16,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-09-22 14:42:16,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008139213] [2021-09-22 14:42:16,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-09-22 14:42:16,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:42:16,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-09-22 14:42:16,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-09-22 14:42:16,099 INFO L87 Difference]: Start difference. First operand 158 states and 372 transitions. 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) [2021-09-22 14:42:16,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:42:16,110 INFO L93 Difference]: Finished difference Result 154 states and 360 transitions. [2021-09-22 14:42:16,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-09-22 14:42:16,110 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 [2021-09-22 14:42:16,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:42:16,111 INFO L225 Difference]: With dead ends: 154 [2021-09-22 14:42:16,111 INFO L226 Difference]: Without dead ends: 154 [2021-09-22 14:42:16,112 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-09-22 14:42:16,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-09-22 14:42:16,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2021-09-22 14:42:16,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 153 states have (on average 2.3529411764705883) internal successors, (360), 153 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:16,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 360 transitions. [2021-09-22 14:42:16,119 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 360 transitions. Word has length 7 [2021-09-22 14:42:16,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:42:16,120 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 360 transitions. [2021-09-22 14:42:16,120 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) [2021-09-22 14:42:16,120 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 360 transitions. [2021-09-22 14:42:16,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-09-22 14:42:16,121 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:42:16,121 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:42:16,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-09-22 14:42:16,121 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-09-22 14:42:16,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:42:16,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1016821658, now seen corresponding path program 1 times [2021-09-22 14:42:16,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:42:16,122 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057892885] [2021-09-22 14:42:16,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:42:16,122 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:42:16,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:42:16,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:42:16,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:42:16,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057892885] [2021-09-22 14:42:16,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057892885] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:42:16,186 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:42:16,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-09-22 14:42:16,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430449724] [2021-09-22 14:42:16,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-09-22 14:42:16,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:42:16,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-09-22 14:42:16,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-09-22 14:42:16,192 INFO L87 Difference]: Start difference. First operand 154 states and 360 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:16,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:42:16,204 INFO L93 Difference]: Finished difference Result 146 states and 338 transitions. [2021-09-22 14:42:16,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-09-22 14:42:16,205 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-09-22 14:42:16,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:42:16,206 INFO L225 Difference]: With dead ends: 146 [2021-09-22 14:42:16,206 INFO L226 Difference]: Without dead ends: 146 [2021-09-22 14:42:16,206 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-09-22 14:42:16,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-09-22 14:42:16,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2021-09-22 14:42:16,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 145 states have (on average 2.331034482758621) internal successors, (338), 145 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:16,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 338 transitions. [2021-09-22 14:42:16,223 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 338 transitions. Word has length 9 [2021-09-22 14:42:16,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:42:16,223 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 338 transitions. [2021-09-22 14:42:16,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:16,223 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 338 transitions. [2021-09-22 14:42:16,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-09-22 14:42:16,224 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:42:16,224 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:42:16,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-09-22 14:42:16,225 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-09-22 14:42:16,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:42:16,225 INFO L82 PathProgramCache]: Analyzing trace with hash 643977590, now seen corresponding path program 1 times [2021-09-22 14:42:16,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:42:16,225 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841549687] [2021-09-22 14:42:16,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:42:16,226 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:42:16,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:42:16,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:42:16,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:42:16,268 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841549687] [2021-09-22 14:42:16,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841549687] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:42:16,269 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:42:16,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-09-22 14:42:16,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960616548] [2021-09-22 14:42:16,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-09-22 14:42:16,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:42:16,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-09-22 14:42:16,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-09-22 14:42:16,270 INFO L87 Difference]: Start difference. First operand 146 states and 338 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:16,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:42:16,281 INFO L93 Difference]: Finished difference Result 138 states and 316 transitions. [2021-09-22 14:42:16,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-09-22 14:42:16,282 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-09-22 14:42:16,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:42:16,283 INFO L225 Difference]: With dead ends: 138 [2021-09-22 14:42:16,283 INFO L226 Difference]: Without dead ends: 138 [2021-09-22 14:42:16,283 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-09-22 14:42:16,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2021-09-22 14:42:16,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2021-09-22 14:42:16,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 137 states have (on average 2.3065693430656933) internal successors, (316), 137 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:16,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 316 transitions. [2021-09-22 14:42:16,288 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 316 transitions. Word has length 9 [2021-09-22 14:42:16,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:42:16,288 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 316 transitions. [2021-09-22 14:42:16,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:16,288 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 316 transitions. [2021-09-22 14:42:16,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-09-22 14:42:16,289 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:42:16,289 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:42:16,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-09-22 14:42:16,289 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-09-22 14:42:16,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:42:16,290 INFO L82 PathProgramCache]: Analyzing trace with hash -2088045092, now seen corresponding path program 1 times [2021-09-22 14:42:16,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:42:16,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801999394] [2021-09-22 14:42:16,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:42:16,291 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:42:16,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:42:16,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:42:16,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:42:16,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801999394] [2021-09-22 14:42:16,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801999394] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:42:16,348 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:42:16,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-09-22 14:42:16,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896763597] [2021-09-22 14:42:16,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-09-22 14:42:16,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:42:16,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-09-22 14:42:16,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-09-22 14:42:16,349 INFO L87 Difference]: Start difference. First operand 138 states and 316 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) [2021-09-22 14:42:16,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:42:16,366 INFO L93 Difference]: Finished difference Result 115 states and 224 transitions. [2021-09-22 14:42:16,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-09-22 14:42:16,366 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 [2021-09-22 14:42:16,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:42:16,367 INFO L225 Difference]: With dead ends: 115 [2021-09-22 14:42:16,367 INFO L226 Difference]: Without dead ends: 79 [2021-09-22 14:42:16,367 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-09-22 14:42:16,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-09-22 14:42:16,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2021-09-22 14:42:16,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 78 states have (on average 1.7820512820512822) internal successors, (139), 78 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:16,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 139 transitions. [2021-09-22 14:42:16,370 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 139 transitions. Word has length 11 [2021-09-22 14:42:16,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:42:16,370 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 139 transitions. [2021-09-22 14:42:16,370 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) [2021-09-22 14:42:16,370 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 139 transitions. [2021-09-22 14:42:16,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-09-22 14:42:16,371 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:42:16,371 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:42:16,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-09-22 14:42:16,371 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-09-22 14:42:16,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:42:16,371 INFO L82 PathProgramCache]: Analyzing trace with hash 458517547, now seen corresponding path program 1 times [2021-09-22 14:42:16,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:42:16,372 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663921082] [2021-09-22 14:42:16,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:42:16,372 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:42:16,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:42:16,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:42:16,456 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:42:16,456 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663921082] [2021-09-22 14:42:16,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663921082] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:42:16,456 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:42:16,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-09-22 14:42:16,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167278464] [2021-09-22 14:42:16,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-09-22 14:42:16,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:42:16,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-09-22 14:42:16,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-09-22 14:42:16,457 INFO L87 Difference]: Start difference. First operand 79 states and 139 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:16,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:42:16,478 INFO L93 Difference]: Finished difference Result 64 states and 107 transitions. [2021-09-22 14:42:16,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-09-22 14:42:16,478 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2021-09-22 14:42:16,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:42:16,479 INFO L225 Difference]: With dead ends: 64 [2021-09-22 14:42:16,479 INFO L226 Difference]: Without dead ends: 53 [2021-09-22 14:42:16,479 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 11.0ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-09-22 14:42:16,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-09-22 14:42:16,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-09-22 14:42:16,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.6730769230769231) internal successors, (87), 52 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:16,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 87 transitions. [2021-09-22 14:42:16,481 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 87 transitions. Word has length 14 [2021-09-22 14:42:16,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:42:16,481 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 87 transitions. [2021-09-22 14:42:16,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:16,481 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 87 transitions. [2021-09-22 14:42:16,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-09-22 14:42:16,482 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:42:16,482 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:42:16,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-09-22 14:42:16,482 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-09-22 14:42:16,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:42:16,483 INFO L82 PathProgramCache]: Analyzing trace with hash -721575826, now seen corresponding path program 1 times [2021-09-22 14:42:16,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:42:16,483 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564118171] [2021-09-22 14:42:16,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:42:16,483 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:42:16,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:42:16,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:42:16,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:42:16,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564118171] [2021-09-22 14:42:16,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564118171] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:42:16,547 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:42:16,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-09-22 14:42:16,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924754520] [2021-09-22 14:42:16,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-09-22 14:42:16,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:42:16,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-09-22 14:42:16,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-09-22 14:42:16,549 INFO L87 Difference]: Start difference. First operand 53 states and 87 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:16,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:42:16,571 INFO L93 Difference]: Finished difference Result 70 states and 111 transitions. [2021-09-22 14:42:16,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-09-22 14:42:16,572 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-09-22 14:42:16,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:42:16,572 INFO L225 Difference]: With dead ends: 70 [2021-09-22 14:42:16,572 INFO L226 Difference]: Without dead ends: 50 [2021-09-22 14:42:16,572 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-09-22 14:42:16,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-09-22 14:42:16,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 44. [2021-09-22 14:42:16,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.6046511627906976) internal successors, (69), 43 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:16,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 69 transitions. [2021-09-22 14:42:16,574 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 69 transitions. Word has length 17 [2021-09-22 14:42:16,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:42:16,574 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 69 transitions. [2021-09-22 14:42:16,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:16,574 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 69 transitions. [2021-09-22 14:42:16,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-09-22 14:42:16,575 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:42:16,575 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:42:16,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-09-22 14:42:16,575 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-09-22 14:42:16,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:42:16,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1686600450, now seen corresponding path program 2 times [2021-09-22 14:42:16,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:42:16,576 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3151983] [2021-09-22 14:42:16,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:42:16,576 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:42:16,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:42:16,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:42:16,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:42:16,634 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3151983] [2021-09-22 14:42:16,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3151983] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:42:16,635 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:42:16,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-09-22 14:42:16,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118848348] [2021-09-22 14:42:16,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-09-22 14:42:16,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:42:16,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-09-22 14:42:16,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-09-22 14:42:16,636 INFO L87 Difference]: Start difference. First operand 44 states and 69 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:16,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:42:16,660 INFO L93 Difference]: Finished difference Result 61 states and 93 transitions. [2021-09-22 14:42:16,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-09-22 14:42:16,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-09-22 14:42:16,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:42:16,661 INFO L225 Difference]: With dead ends: 61 [2021-09-22 14:42:16,661 INFO L226 Difference]: Without dead ends: 38 [2021-09-22 14:42:16,661 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.9ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-09-22 14:42:16,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-09-22 14:42:16,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-09-22 14:42:16,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.5405405405405406) internal successors, (57), 37 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:16,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 57 transitions. [2021-09-22 14:42:16,663 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 57 transitions. Word has length 17 [2021-09-22 14:42:16,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:42:16,663 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 57 transitions. [2021-09-22 14:42:16,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:16,663 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 57 transitions. [2021-09-22 14:42:16,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-09-22 14:42:16,663 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:42:16,664 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:42:16,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-09-22 14:42:16,664 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-09-22 14:42:16,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:42:16,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1383898888, now seen corresponding path program 3 times [2021-09-22 14:42:16,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:42:16,665 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094424070] [2021-09-22 14:42:16,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:42:16,665 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:42:16,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:42:16,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:42:16,778 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:42:16,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094424070] [2021-09-22 14:42:16,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094424070] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:42:16,779 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:42:16,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-09-22 14:42:16,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526920051] [2021-09-22 14:42:16,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-09-22 14:42:16,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:42:16,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-09-22 14:42:16,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-09-22 14:42:16,781 INFO L87 Difference]: Start difference. First operand 38 states and 57 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:16,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:42:16,848 INFO L93 Difference]: Finished difference Result 46 states and 66 transitions. [2021-09-22 14:42:16,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-09-22 14:42:16,849 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-09-22 14:42:16,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:42:16,849 INFO L225 Difference]: With dead ends: 46 [2021-09-22 14:42:16,849 INFO L226 Difference]: Without dead ends: 28 [2021-09-22 14:42:16,849 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 43.0ms TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-09-22 14:42:16,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-09-22 14:42:16,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-09-22 14:42:16,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 27 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:16,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 37 transitions. [2021-09-22 14:42:16,851 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 37 transitions. Word has length 17 [2021-09-22 14:42:16,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:42:16,851 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 37 transitions. [2021-09-22 14:42:16,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:16,851 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 37 transitions. [2021-09-22 14:42:16,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-09-22 14:42:16,852 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:42:16,852 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:42:16,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-09-22 14:42:16,852 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-09-22 14:42:16,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:42:16,853 INFO L82 PathProgramCache]: Analyzing trace with hash 313100546, now seen corresponding path program 4 times [2021-09-22 14:42:16,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:42:16,853 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429117743] [2021-09-22 14:42:16,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:42:16,853 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:42:16,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-09-22 14:42:16,885 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-09-22 14:42:16,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-09-22 14:42:16,932 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-09-22 14:42:16,932 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-09-22 14:42:16,933 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-09-22 14:42:16,934 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-09-22 14:42:16,934 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-09-22 14:42:16,934 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-09-22 14:42:16,935 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-09-22 14:42:16,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-09-22 14:42:16,939 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-09-22 14:42:16,939 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-09-22 14:42:16,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.09 02:42:16 BasicIcfg [2021-09-22 14:42:16,980 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-09-22 14:42:16,981 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-09-22 14:42:16,981 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-09-22 14:42:16,981 INFO L275 PluginConnector]: Witness Printer initialized [2021-09-22 14:42:16,981 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 02:42:11" (3/4) ... [2021-09-22 14:42:16,983 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-09-22 14:42:17,029 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-09-22 14:42:17,029 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-09-22 14:42:17,030 INFO L168 Benchmark]: Toolchain (without parser) took 7253.33 ms. Allocated memory was 65.0 MB in the beginning and 117.4 MB in the end (delta: 52.4 MB). Free memory was 43.5 MB in the beginning and 44.8 MB in the end (delta: -1.4 MB). Peak memory consumption was 50.4 MB. Max. memory is 16.1 GB. [2021-09-22 14:42:17,030 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 65.0 MB. Free memory was 46.6 MB in the beginning and 46.5 MB in the end (delta: 44.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-09-22 14:42:17,030 INFO L168 Benchmark]: CACSL2BoogieTranslator took 405.00 ms. Allocated memory is still 65.0 MB. Free memory was 43.2 MB in the beginning and 35.2 MB in the end (delta: 8.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-09-22 14:42:17,031 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.92 ms. Allocated memory is still 65.0 MB. Free memory was 35.2 MB in the beginning and 32.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-09-22 14:42:17,031 INFO L168 Benchmark]: Boogie Preprocessor took 42.29 ms. Allocated memory is still 65.0 MB. Free memory was 32.8 MB in the beginning and 30.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-09-22 14:42:17,031 INFO L168 Benchmark]: RCFGBuilder took 1218.78 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 30.7 MB in the beginning and 40.1 MB in the end (delta: -9.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-09-22 14:42:17,031 INFO L168 Benchmark]: TraceAbstraction took 5471.95 ms. Allocated memory was 79.7 MB in the beginning and 117.4 MB in the end (delta: 37.7 MB). Free memory was 39.6 MB in the beginning and 57.4 MB in the end (delta: -17.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. [2021-09-22 14:42:17,032 INFO L168 Benchmark]: Witness Printer took 48.44 ms. Allocated memory is still 117.4 MB. Free memory was 57.4 MB in the beginning and 44.8 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-09-22 14:42:17,033 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 65.0 MB. Free memory was 46.6 MB in the beginning and 46.5 MB in the end (delta: 44.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 405.00 ms. Allocated memory is still 65.0 MB. Free memory was 43.2 MB in the beginning and 35.2 MB in the end (delta: 8.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.92 ms. Allocated memory is still 65.0 MB. Free memory was 35.2 MB in the beginning and 32.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.29 ms. Allocated memory is still 65.0 MB. Free memory was 32.8 MB in the beginning and 30.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1218.78 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 30.7 MB in the beginning and 40.1 MB in the end (delta: -9.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5471.95 ms. Allocated memory was 79.7 MB in the beginning and 117.4 MB in the end (delta: 37.7 MB). Free memory was 39.6 MB in the beginning and 57.4 MB in the end (delta: -17.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. * Witness Printer took 48.44 ms. Allocated memory is still 117.4 MB. Free memory was 57.4 MB in the beginning and 44.8 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4131.4ms, 100 PlacesBefore, 28 PlacesAfterwards, 95 TransitionsBefore, 21 TransitionsAfterwards, 1308 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 85 TotalNumberOfCompositions, 3377 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1797, positive: 1634, positive conditional: 0, positive unconditional: 1634, negative: 163, negative conditional: 0, negative unconditional: 163, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 957, positive: 902, positive conditional: 0, positive unconditional: 902, negative: 55, negative conditional: 0, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 957, positive: 898, positive conditional: 0, positive unconditional: 898, negative: 59, negative conditional: 0, negative unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 59, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 55, negative conditional: 0, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 405, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 399, negative conditional: 0, negative unconditional: 399, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1797, positive: 732, positive conditional: 0, positive unconditional: 732, negative: 108, negative conditional: 0, negative unconditional: 108, unknown: 957, unknown conditional: 0, unknown unconditional: 957] , Statistics on independence cache: Total cache size (in pairs): 101, Positive cache size: 82, Positive conditional cache size: 0, Positive unconditional cache size: 82, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L708] 0 int __unbuffered_cnt = 0; [L710] 0 int __unbuffered_p0_EAX = 0; [L712] 0 int __unbuffered_p0_EBX = 0; [L714] 0 int __unbuffered_p1_EAX = 0; [L716] 0 int __unbuffered_p1_EBX = 0; [L718] 0 int a = 0; [L719] 0 _Bool a$flush_delayed; [L720] 0 int a$mem_tmp; [L721] 0 _Bool a$r_buff0_thd0; [L722] 0 _Bool a$r_buff0_thd1; [L723] 0 _Bool a$r_buff0_thd2; [L724] 0 _Bool a$r_buff1_thd0; [L725] 0 _Bool a$r_buff1_thd1; [L726] 0 _Bool a$r_buff1_thd2; [L727] 0 _Bool a$read_delayed; [L728] 0 int *a$read_delayed_var; [L729] 0 int a$w_buff0; [L730] 0 _Bool a$w_buff0_used; [L731] 0 int a$w_buff1; [L732] 0 _Bool a$w_buff1_used; [L733] 0 _Bool main$tmp_guard0; [L734] 0 _Bool main$tmp_guard1; [L736] 0 int x = 0; [L738] 0 int y = 0; [L740] 0 int z = 0; [L741] 0 _Bool weak$$choice0; [L742] 0 _Bool weak$$choice2; [L827] 0 pthread_t t845; [L828] FCALL, FORK 0 pthread_create(&t845, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L829] 0 pthread_t t846; [L746] 1 a$w_buff1 = a$w_buff0 [L747] 1 a$w_buff0 = 1 [L748] 1 a$w_buff1_used = a$w_buff0_used [L749] 1 a$w_buff0_used = (_Bool)1 [L18] COND FALSE 1 !(!expression) [L751] 1 a$r_buff1_thd0 = a$r_buff0_thd0 [L752] 1 a$r_buff1_thd1 = a$r_buff0_thd1 [L753] 1 a$r_buff1_thd2 = a$r_buff0_thd2 [L754] 1 a$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L830] FCALL, FORK 0 pthread_create(&t846, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L757] 1 x = 1 [L760] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L763] 1 __unbuffered_p0_EBX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L780] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0] [L783] 2 z = 1 [L786] 2 __unbuffered_p1_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=1] [L789] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L790] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L791] 2 a$flush_delayed = weak$$choice2 [L792] 2 a$mem_tmp = a [L793] EXPR 2 !a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a : (a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff0 : a$w_buff1) [L793] 2 a = !a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a : (a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff0 : a$w_buff1) [L794] EXPR 2 weak$$choice2 ? a$w_buff0 : (!a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$w_buff0 : (a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff0 : a$w_buff0)) [L794] EXPR 2 !a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$w_buff0 : (a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff0 : a$w_buff0) [L794] EXPR 2 weak$$choice2 ? a$w_buff0 : (!a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$w_buff0 : (a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff0 : a$w_buff0)) [L794] 2 a$w_buff0 = weak$$choice2 ? a$w_buff0 : (!a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$w_buff0 : (a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff0 : a$w_buff0)) [L795] EXPR 2 weak$$choice2 ? a$w_buff1 : (!a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$w_buff1 : (a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff1 : a$w_buff1)) [L795] EXPR 2 !a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$w_buff1 : (a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff1 : a$w_buff1) [L795] EXPR 2 weak$$choice2 ? a$w_buff1 : (!a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$w_buff1 : (a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff1 : a$w_buff1)) [L795] 2 a$w_buff1 = weak$$choice2 ? a$w_buff1 : (!a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$w_buff1 : (a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff1 : a$w_buff1)) [L796] EXPR 2 weak$$choice2 ? a$w_buff0_used : (!a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$w_buff0_used : (a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$w_buff0_used)) [L796] EXPR 2 !a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$w_buff0_used : (a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$w_buff0_used) [L796] EXPR 2 weak$$choice2 ? a$w_buff0_used : (!a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$w_buff0_used : (a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$w_buff0_used)) [L796] 2 a$w_buff0_used = weak$$choice2 ? a$w_buff0_used : (!a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$w_buff0_used : (a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$w_buff0_used)) [L797] EXPR 2 weak$$choice2 ? a$w_buff1_used : (!a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$w_buff1_used : (a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L797] EXPR 2 !a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$w_buff1_used : (a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : (_Bool)0) [L797] EXPR 2 weak$$choice2 ? a$w_buff1_used : (!a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$w_buff1_used : (a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L797] 2 a$w_buff1_used = weak$$choice2 ? a$w_buff1_used : (!a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$w_buff1_used : (a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L798] EXPR 2 weak$$choice2 ? a$r_buff0_thd2 : (!a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$r_buff0_thd2 : (a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$r_buff0_thd2)) [L798] EXPR 2 !a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$r_buff0_thd2 : (a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$r_buff0_thd2) [L798] EXPR 2 weak$$choice2 ? a$r_buff0_thd2 : (!a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$r_buff0_thd2 : (a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$r_buff0_thd2)) [L798] 2 a$r_buff0_thd2 = weak$$choice2 ? a$r_buff0_thd2 : (!a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$r_buff0_thd2 : (a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$r_buff0_thd2)) [L799] EXPR 2 weak$$choice2 ? a$r_buff1_thd2 : (!a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$r_buff1_thd2 : (a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L799] EXPR 2 !a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$r_buff1_thd2 : (a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : (_Bool)0) [L799] EXPR 2 weak$$choice2 ? a$r_buff1_thd2 : (!a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$r_buff1_thd2 : (a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L799] 2 a$r_buff1_thd2 = weak$$choice2 ? a$r_buff1_thd2 : (!a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$r_buff1_thd2 : (a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L800] 2 __unbuffered_p1_EBX = a [L801] EXPR 2 a$flush_delayed ? a$mem_tmp : a [L801] 2 a = a$flush_delayed ? a$mem_tmp : a [L802] 2 a$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, z=1] [L805] EXPR 2 a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd2 ? a$w_buff1 : a) [L805] EXPR 2 a$w_buff1_used && a$r_buff1_thd2 ? a$w_buff1 : a [L805] EXPR 2 a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd2 ? a$w_buff1 : a) [L805] 2 a = a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd2 ? a$w_buff1 : a) [L806] EXPR 2 a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$w_buff0_used [L806] 2 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$w_buff0_used [L807] EXPR 2 a$w_buff0_used && a$r_buff0_thd2 || a$w_buff1_used && a$r_buff1_thd2 ? (_Bool)0 : a$w_buff1_used [L807] 2 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd2 || a$w_buff1_used && a$r_buff1_thd2 ? (_Bool)0 : a$w_buff1_used [L808] EXPR 2 a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$r_buff0_thd2 [L808] 2 a$r_buff0_thd2 = a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$r_buff0_thd2 [L809] EXPR 2 a$w_buff0_used && a$r_buff0_thd2 || a$w_buff1_used && a$r_buff1_thd2 ? (_Bool)0 : a$r_buff1_thd2 [L809] 2 a$r_buff1_thd2 = a$w_buff0_used && a$r_buff0_thd2 || a$w_buff1_used && a$r_buff1_thd2 ? (_Bool)0 : a$r_buff1_thd2 [L812] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L814] 2 return 0; [L766] EXPR 1 a$w_buff0_used && a$r_buff0_thd1 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd1 ? a$w_buff1 : a) [L766] 1 a = a$w_buff0_used && a$r_buff0_thd1 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd1 ? a$w_buff1 : a) [L767] EXPR 1 a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$w_buff0_used [L767] 1 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$w_buff0_used [L768] EXPR 1 a$w_buff0_used && a$r_buff0_thd1 || a$w_buff1_used && a$r_buff1_thd1 ? (_Bool)0 : a$w_buff1_used [L768] 1 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd1 || a$w_buff1_used && a$r_buff1_thd1 ? (_Bool)0 : a$w_buff1_used [L769] EXPR 1 a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$r_buff0_thd1 [L769] 1 a$r_buff0_thd1 = a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$r_buff0_thd1 [L770] EXPR 1 a$w_buff0_used && a$r_buff0_thd1 || a$w_buff1_used && a$r_buff1_thd1 ? (_Bool)0 : a$r_buff1_thd1 [L770] 1 a$r_buff1_thd1 = a$w_buff0_used && a$r_buff0_thd1 || a$w_buff1_used && a$r_buff1_thd1 ? (_Bool)0 : a$r_buff1_thd1 [L773] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L775] 1 return 0; [L832] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L3] COND FALSE 0 !(!cond) [L836] EXPR 0 a$w_buff0_used && a$r_buff0_thd0 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd0 ? a$w_buff1 : a) [L836] EXPR 0 a$w_buff1_used && a$r_buff1_thd0 ? a$w_buff1 : a [L836] EXPR 0 a$w_buff0_used && a$r_buff0_thd0 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd0 ? a$w_buff1 : a) [L836] 0 a = a$w_buff0_used && a$r_buff0_thd0 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd0 ? a$w_buff1 : a) [L837] EXPR 0 a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$w_buff0_used [L837] 0 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$w_buff0_used [L838] EXPR 0 a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$w_buff1_used [L838] 0 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$w_buff1_used [L839] EXPR 0 a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$r_buff0_thd0 [L839] 0 a$r_buff0_thd0 = a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$r_buff0_thd0 [L840] EXPR 0 a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$r_buff1_thd0 [L840] 0 a$r_buff1_thd0 = a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$r_buff1_thd0 [L843] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 1 && __unbuffered_p0_EBX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, z=1] - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 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 5 procedures, 117 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 5322.1ms, OverallIterations: 10, TraceHistogramMax: 1, EmptinessCheckTime: 10.9ms, AutomataDifference: 254.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 4182.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 175 SDtfs, 172 SDslu, 200 SDs, 0 SdLazy, 104 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 103.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 116.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=196occurred in iteration=0, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 55.2ms AutomataMinimizationTime, 9 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 20.8ms SsaConstructionTime, 193.5ms SatisfiabilityAnalysisTime, 408.4ms InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 95 ConstructedInterpolants, 0 QuantifiedInterpolants, 633 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! [2021-09-22 14:42:17,067 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...