./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-pthread/cs_lamport.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-pthread/cs_lamport.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 d49d34698411f85a0a6e83adb869f73bcb1d6aade5262b0ab5e3122db7000276 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 07:39:43,198 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 07:39:43,200 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 07:39:43,241 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 07:39:43,241 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 07:39:43,242 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 07:39:43,245 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 07:39:43,253 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 07:39:43,254 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 07:39:43,255 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 07:39:43,256 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 07:39:43,256 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 07:39:43,257 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 07:39:43,257 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 07:39:43,258 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 07:39:43,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 07:39:43,259 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 07:39:43,260 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 07:39:43,261 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 07:39:43,262 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 07:39:43,263 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 07:39:43,264 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 07:39:43,265 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 07:39:43,266 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 07:39:43,266 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 07:39:43,268 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 07:39:43,268 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 07:39:43,268 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 07:39:43,269 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 07:39:43,269 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 07:39:43,270 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 07:39:43,270 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 07:39:43,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 07:39:43,271 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 07:39:43,272 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 07:39:43,272 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 07:39:43,272 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 07:39:43,273 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 07:39:43,273 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 07:39:43,273 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 07:39:43,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 07:39:43,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 07:39:43,275 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 07:39:43,288 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 07:39:43,288 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 07:39:43,289 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 07:39:43,289 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 07:39:43,289 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 07:39:43,289 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 07:39:43,290 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 07:39:43,290 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 07:39:43,290 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 07:39:43,290 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 07:39:43,291 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 07:39:43,291 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 07:39:43,291 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 07:39:43,291 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 07:39:43,291 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 07:39:43,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 07:39:43,292 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 07:39:43,292 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 07:39:43,292 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 07:39:43,292 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 07:39:43,292 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 07:39:43,293 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 07:39:43,293 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 07:39:43,293 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 07:39:43,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 07:39:43,293 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 07:39:43,294 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 07:39:43,294 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 07:39:43,294 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 07:39:43,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 07:39:43,294 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 07:39:43,294 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 07:39:43,295 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 07:39:43,295 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d49d34698411f85a0a6e83adb869f73bcb1d6aade5262b0ab5e3122db7000276 [2022-07-12 07:39:43,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 07:39:43,481 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 07:39:43,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 07:39:43,483 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 07:39:43,484 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 07:39:43,484 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-pthread/cs_lamport.i [2022-07-12 07:39:43,549 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25e93f911/3aaeca785c064aac8489a0f849be911f/FLAGf45fe6687 [2022-07-12 07:39:43,974 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 07:39:43,975 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_lamport.i [2022-07-12 07:39:43,990 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25e93f911/3aaeca785c064aac8489a0f849be911f/FLAGf45fe6687 [2022-07-12 07:39:44,000 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25e93f911/3aaeca785c064aac8489a0f849be911f [2022-07-12 07:39:44,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 07:39:44,003 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 07:39:44,004 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 07:39:44,004 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 07:39:44,006 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 07:39:44,007 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 07:39:44" (1/1) ... [2022-07-12 07:39:44,008 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4547870f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:39:44, skipping insertion in model container [2022-07-12 07:39:44,008 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 07:39:44" (1/1) ... [2022-07-12 07:39:44,012 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 07:39:44,038 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 07:39:44,250 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_lamport.i[23604,23617] [2022-07-12 07:39:44,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 07:39:44,355 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 07:39:44,380 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_lamport.i[23604,23617] [2022-07-12 07:39:44,446 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 07:39:44,470 INFO L208 MainTranslator]: Completed translation [2022-07-12 07:39:44,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:39:44 WrapperNode [2022-07-12 07:39:44,470 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 07:39:44,471 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 07:39:44,471 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 07:39:44,472 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 07:39:44,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:39:44" (1/1) ... [2022-07-12 07:39:44,507 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:39:44" (1/1) ... [2022-07-12 07:39:44,554 INFO L137 Inliner]: procedures = 145, calls = 351, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 461 [2022-07-12 07:39:44,555 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 07:39:44,555 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 07:39:44,555 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 07:39:44,556 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 07:39:44,562 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:39:44" (1/1) ... [2022-07-12 07:39:44,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:39:44" (1/1) ... [2022-07-12 07:39:44,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:39:44" (1/1) ... [2022-07-12 07:39:44,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:39:44" (1/1) ... [2022-07-12 07:39:44,581 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:39:44" (1/1) ... [2022-07-12 07:39:44,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:39:44" (1/1) ... [2022-07-12 07:39:44,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:39:44" (1/1) ... [2022-07-12 07:39:44,589 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 07:39:44,590 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 07:39:44,590 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 07:39:44,590 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 07:39:44,608 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:39:44" (1/1) ... [2022-07-12 07:39:44,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 07:39:44,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 07:39:44,646 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 07:39:44,651 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 [2022-07-12 07:39:44,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 07:39:44,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 07:39:44,681 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 07:39:44,681 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 07:39:44,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 07:39:44,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 07:39:44,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 07:39:44,682 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2022-07-12 07:39:44,682 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2022-07-12 07:39:44,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 07:39:44,682 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2022-07-12 07:39:44,682 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2022-07-12 07:39:44,682 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2022-07-12 07:39:44,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2022-07-12 07:39:44,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 07:39:44,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 07:39:44,683 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2022-07-12 07:39:44,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2022-07-12 07:39:44,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 07:39:44,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 07:39:44,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 07:39:44,840 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 07:39:44,841 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 07:39:47,427 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 07:39:47,432 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 07:39:47,432 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-12 07:39:47,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 07:39:47 BoogieIcfgContainer [2022-07-12 07:39:47,434 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 07:39:47,435 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 07:39:47,435 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 07:39:47,438 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 07:39:47,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 07:39:44" (1/3) ... [2022-07-12 07:39:47,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bd9576a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 07:39:47, skipping insertion in model container [2022-07-12 07:39:47,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:39:44" (2/3) ... [2022-07-12 07:39:47,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bd9576a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 07:39:47, skipping insertion in model container [2022-07-12 07:39:47,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 07:39:47" (3/3) ... [2022-07-12 07:39:47,441 INFO L111 eAbstractionObserver]: Analyzing ICFG cs_lamport.i [2022-07-12 07:39:47,451 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 07:39:47,451 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 07:39:47,498 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 07:39:47,511 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@364e29, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@35a4cc5 [2022-07-12 07:39:47,512 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 07:39:47,515 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 76 states have (on average 1.3157894736842106) internal successors, (100), 77 states have internal predecessors, (100), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2022-07-12 07:39:47,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-07-12 07:39:47,534 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:39:47,535 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:39:47,535 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 07:39:47,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:39:47,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1647401659, now seen corresponding path program 1 times [2022-07-12 07:39:47,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:39:47,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059994394] [2022-07-12 07:39:47,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:39:47,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:40:22,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:24,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 07:40:24,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:24,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 07:40:24,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:24,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 07:40:24,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:24,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-12 07:40:24,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:24,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 07:40:24,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:24,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 07:40:24,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:24,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 07:40:24,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:24,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 07:40:24,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:24,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 07:40:24,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:24,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-12 07:40:24,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:24,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-12 07:40:24,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:24,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 07:40:24,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:24,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 07:40:24,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:24,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 07:40:24,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:24,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-12 07:40:24,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:24,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 07:40:24,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:24,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 07:40:24,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:24,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 07:40:24,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:24,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 07:40:24,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:24,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 07:40:24,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:24,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-12 07:40:24,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:24,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-12 07:40:24,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:24,883 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2022-07-12 07:40:24,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:40:24,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059994394] [2022-07-12 07:40:24,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059994394] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:40:24,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:40:24,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 07:40:24,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776467797] [2022-07-12 07:40:24,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:40:24,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 07:40:24,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:40:24,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 07:40:24,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:40:24,909 INFO L87 Difference]: Start difference. First operand has 119 states, 76 states have (on average 1.3157894736842106) internal successors, (100), 77 states have internal predecessors, (100), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-07-12 07:40:24,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:40:24,976 INFO L93 Difference]: Finished difference Result 240 states and 384 transitions. [2022-07-12 07:40:24,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 07:40:24,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 144 [2022-07-12 07:40:24,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:40:24,993 INFO L225 Difference]: With dead ends: 240 [2022-07-12 07:40:24,993 INFO L226 Difference]: Without dead ends: 119 [2022-07-12 07:40:25,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:40:25,005 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 4 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:40:25,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 328 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:40:25,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-07-12 07:40:25,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 116. [2022-07-12 07:40:25,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 74 states have (on average 1.2567567567567568) internal successors, (93), 74 states have internal predecessors, (93), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2022-07-12 07:40:25,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 165 transitions. [2022-07-12 07:40:25,065 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 165 transitions. Word has length 144 [2022-07-12 07:40:25,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:40:25,065 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 165 transitions. [2022-07-12 07:40:25,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-07-12 07:40:25,067 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 165 transitions. [2022-07-12 07:40:25,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-07-12 07:40:25,077 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:40:25,077 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:40:25,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 07:40:25,078 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 07:40:25,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:40:25,079 INFO L85 PathProgramCache]: Analyzing trace with hash 284229075, now seen corresponding path program 1 times [2022-07-12 07:40:25,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:40:25,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331731632] [2022-07-12 07:40:25,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:40:25,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:40:31,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:32,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 07:40:32,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:32,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 07:40:32,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:32,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 07:40:32,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:32,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-12 07:40:32,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:32,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 07:40:32,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:32,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-12 07:40:32,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:32,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 07:40:32,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:32,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 07:40:32,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:32,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-12 07:40:32,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:32,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 07:40:32,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:32,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 07:40:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:32,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-12 07:40:32,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:32,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 07:40:32,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:32,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 07:40:32,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:32,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-12 07:40:32,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:32,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-12 07:40:32,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:32,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-12 07:40:32,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:32,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-12 07:40:32,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:32,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 07:40:32,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:32,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-12 07:40:32,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:32,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-12 07:40:32,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:32,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-12 07:40:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:32,923 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2022-07-12 07:40:32,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:40:32,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331731632] [2022-07-12 07:40:32,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331731632] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:40:32,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:40:32,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 07:40:32,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7456066] [2022-07-12 07:40:32,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:40:32,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 07:40:32,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:40:32,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 07:40:32,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:40:32,927 INFO L87 Difference]: Start difference. First operand 116 states and 165 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-07-12 07:40:32,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:40:32,963 INFO L93 Difference]: Finished difference Result 231 states and 330 transitions. [2022-07-12 07:40:32,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 07:40:32,964 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 147 [2022-07-12 07:40:32,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:40:32,967 INFO L225 Difference]: With dead ends: 231 [2022-07-12 07:40:32,968 INFO L226 Difference]: Without dead ends: 118 [2022-07-12 07:40:32,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:40:32,971 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 1 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:40:32,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 321 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:40:32,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-07-12 07:40:32,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 117. [2022-07-12 07:40:32,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 75 states have (on average 1.2533333333333334) internal successors, (94), 75 states have internal predecessors, (94), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2022-07-12 07:40:32,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 166 transitions. [2022-07-12 07:40:32,986 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 166 transitions. Word has length 147 [2022-07-12 07:40:32,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:40:32,988 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 166 transitions. [2022-07-12 07:40:32,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-07-12 07:40:32,988 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 166 transitions. [2022-07-12 07:40:32,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-07-12 07:40:32,990 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:40:32,990 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:40:32,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 07:40:32,991 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 07:40:32,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:40:32,991 INFO L85 PathProgramCache]: Analyzing trace with hash -2059588459, now seen corresponding path program 1 times [2022-07-12 07:40:32,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:40:32,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692735214] [2022-07-12 07:40:32,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:40:32,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:40:39,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:40,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 07:40:40,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:40,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-12 07:40:40,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:40,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 07:40:40,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:40,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-12 07:40:40,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:40,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 07:40:40,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:40,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 07:40:40,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:40,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 07:40:40,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:40,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 07:40:40,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:40,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-12 07:40:40,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:40,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 07:40:40,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:40,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-12 07:40:40,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:40,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-12 07:40:40,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:40,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-12 07:40:40,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:40,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 07:40:40,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:40,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 07:40:40,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:40,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-12 07:40:40,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:40,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-12 07:40:40,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:40,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 07:40:40,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:40,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-12 07:40:40,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:40,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-12 07:40:40,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:40,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-12 07:40:40,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:40,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 07:40:40,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:40:40,660 INFO L134 CoverageAnalysis]: Checked inductivity of 926 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2022-07-12 07:40:40,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:40:40,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692735214] [2022-07-12 07:40:40,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692735214] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 07:40:40,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233193466] [2022-07-12 07:40:40,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:40:40,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 07:40:40,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 07:40:40,663 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 07:40:40,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-12 07:41:13,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:41:14,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 101556 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 07:41:14,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 07:41:14,749 INFO L134 CoverageAnalysis]: Checked inductivity of 926 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2022-07-12 07:41:14,750 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 07:41:14,811 INFO L134 CoverageAnalysis]: Checked inductivity of 926 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2022-07-12 07:41:14,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233193466] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 07:41:14,812 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-12 07:41:14,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-07-12 07:41:14,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291777625] [2022-07-12 07:41:14,812 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-12 07:41:14,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 07:41:14,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:41:14,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 07:41:14,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-12 07:41:14,814 INFO L87 Difference]: Start difference. First operand 117 states and 166 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2022-07-12 07:41:14,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:41:14,846 INFO L93 Difference]: Finished difference Result 235 states and 335 transitions. [2022-07-12 07:41:14,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 07:41:14,847 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 149 [2022-07-12 07:41:14,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:41:14,848 INFO L225 Difference]: With dead ends: 235 [2022-07-12 07:41:14,848 INFO L226 Difference]: Without dead ends: 121 [2022-07-12 07:41:14,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 339 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-12 07:41:14,849 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 3 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:41:14,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 480 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:41:14,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-07-12 07:41:14,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2022-07-12 07:41:14,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 79 states have (on average 1.240506329113924) internal successors, (98), 79 states have internal predecessors, (98), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2022-07-12 07:41:14,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 170 transitions. [2022-07-12 07:41:14,856 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 170 transitions. Word has length 149 [2022-07-12 07:41:14,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:41:14,856 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 170 transitions. [2022-07-12 07:41:14,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2022-07-12 07:41:14,857 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 170 transitions. [2022-07-12 07:41:14,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-07-12 07:41:14,858 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:41:14,858 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:41:15,075 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forcibly destroying the process [2022-07-12 07:41:15,132 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 137 [2022-07-12 07:41:15,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 07:41:15,133 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 07:41:15,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:41:15,133 INFO L85 PathProgramCache]: Analyzing trace with hash 409710745, now seen corresponding path program 2 times [2022-07-12 07:41:15,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:41:15,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216796609] [2022-07-12 07:41:15,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:41:15,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:42:08,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:09,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 07:42:09,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:09,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 07:42:09,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:09,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-12 07:42:09,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:09,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 07:42:09,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:09,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-12 07:42:09,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:09,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 07:42:09,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:09,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 07:42:09,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:09,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-12 07:42:09,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:09,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 07:42:09,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:09,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 07:42:09,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:09,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-12 07:42:09,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:09,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 07:42:09,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:09,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 07:42:09,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:09,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-12 07:42:09,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:09,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-12 07:42:09,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:09,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-12 07:42:09,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:09,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-12 07:42:09,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:09,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 07:42:09,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:09,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-12 07:42:09,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:09,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-12 07:42:09,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:09,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-12 07:42:09,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:09,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 07:42:09,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:09,929 INFO L134 CoverageAnalysis]: Checked inductivity of 934 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 933 trivial. 0 not checked. [2022-07-12 07:42:09,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:42:09,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216796609] [2022-07-12 07:42:09,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216796609] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 07:42:09,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1240777926] [2022-07-12 07:42:09,930 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 07:42:09,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 07:42:09,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 07:42:09,944 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 07:42:09,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process