./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/chl/chromosome-trans.wvr.c --full-output -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8c2bbc92 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl/chromosome-trans.wvr.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/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 6205dd28357a99a6dad8b2de9851083e86ce6af9 -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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-8c2bbc9 [2021-10-05 22:16:43,230 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-05 22:16:43,234 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-05 22:16:43,287 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-05 22:16:43,288 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-05 22:16:43,290 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-05 22:16:43,292 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-05 22:16:43,300 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-05 22:16:43,304 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-05 22:16:43,309 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-05 22:16:43,310 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-05 22:16:43,315 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-05 22:16:43,316 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-05 22:16:43,320 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-05 22:16:43,324 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-05 22:16:43,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-05 22:16:43,331 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-05 22:16:43,334 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-05 22:16:43,337 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-05 22:16:43,342 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-05 22:16:43,345 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-05 22:16:43,348 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-05 22:16:43,350 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-05 22:16:43,351 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-05 22:16:43,354 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-05 22:16:43,354 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-05 22:16:43,354 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-05 22:16:43,355 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-05 22:16:43,356 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-05 22:16:43,357 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-05 22:16:43,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-05 22:16:43,358 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-05 22:16:43,359 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-05 22:16:43,360 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-05 22:16:43,361 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-05 22:16:43,362 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-05 22:16:43,363 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-05 22:16:43,363 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-05 22:16:43,363 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-05 22:16:43,364 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-05 22:16:43,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-05 22:16:43,368 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-05 22:16:43,395 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-05 22:16:43,396 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-05 22:16:43,396 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-05 22:16:43,396 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-05 22:16:43,398 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-05 22:16:43,398 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-05 22:16:43,398 INFO L138 SettingsManager]: * Use SBE=true [2021-10-05 22:16:43,399 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-05 22:16:43,399 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-05 22:16:43,399 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-05 22:16:43,399 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-05 22:16:43,400 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-05 22:16:43,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-05 22:16:43,400 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-05 22:16:43,400 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-05 22:16:43,401 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-05 22:16:43,401 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-05 22:16:43,401 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-05 22:16:43,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-05 22:16:43,402 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-05 22:16:43,402 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-05 22:16:43,402 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-05 22:16:43,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-05 22:16:43,403 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-05 22:16:43,403 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-05 22:16:43,403 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-05 22:16:43,404 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-05 22:16:43,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-05 22:16:43,404 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-05 22:16:43,404 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-05 22:16:43,405 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6205dd28357a99a6dad8b2de9851083e86ce6af9 [2021-10-05 22:16:43,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-05 22:16:43,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-05 22:16:43,810 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-05 22:16:43,812 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-05 22:16:43,813 INFO L275 PluginConnector]: CDTParser initialized [2021-10-05 22:16:43,814 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl/chromosome-trans.wvr.c [2021-10-05 22:16:43,898 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/97e881b9b/063e9cf78ef0435cbaed432dd627bfab/FLAGc13302ac9 [2021-10-05 22:16:44,524 INFO L306 CDTParser]: Found 1 translation units. [2021-10-05 22:16:44,525 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl/chromosome-trans.wvr.c [2021-10-05 22:16:44,535 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/97e881b9b/063e9cf78ef0435cbaed432dd627bfab/FLAGc13302ac9 [2021-10-05 22:16:44,878 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/97e881b9b/063e9cf78ef0435cbaed432dd627bfab [2021-10-05 22:16:44,881 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-05 22:16:44,888 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-05 22:16:44,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-05 22:16:44,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-05 22:16:44,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-05 22:16:44,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:16:44" (1/1) ... [2021-10-05 22:16:44,903 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e46b0fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:16:44, skipping insertion in model container [2021-10-05 22:16:44,903 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:16:44" (1/1) ... [2021-10-05 22:16:44,911 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-05 22:16:44,941 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-05 22:16:45,121 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl/chromosome-trans.wvr.c[2567,2580] [2021-10-05 22:16:45,129 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-05 22:16:45,138 INFO L203 MainTranslator]: Completed pre-run [2021-10-05 22:16:45,166 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl/chromosome-trans.wvr.c[2567,2580] [2021-10-05 22:16:45,169 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-05 22:16:45,185 INFO L208 MainTranslator]: Completed translation [2021-10-05 22:16:45,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:16:45 WrapperNode [2021-10-05 22:16:45,186 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-05 22:16:45,187 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-05 22:16:45,187 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-05 22:16:45,188 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-05 22:16:45,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:16:45" (1/1) ... [2021-10-05 22:16:45,205 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:16:45" (1/1) ... [2021-10-05 22:16:45,238 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-05 22:16:45,239 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-05 22:16:45,240 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-05 22:16:45,240 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-05 22:16:45,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:16:45" (1/1) ... [2021-10-05 22:16:45,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:16:45" (1/1) ... [2021-10-05 22:16:45,258 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:16:45" (1/1) ... [2021-10-05 22:16:45,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:16:45" (1/1) ... [2021-10-05 22:16:45,268 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:16:45" (1/1) ... [2021-10-05 22:16:45,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:16:45" (1/1) ... [2021-10-05 22:16:45,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:16:45" (1/1) ... [2021-10-05 22:16:45,281 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-05 22:16:45,282 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-05 22:16:45,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-05 22:16:45,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-05 22:16:45,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:16:45" (1/1) ... [2021-10-05 22:16:45,298 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-05 22:16:45,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-05 22:16:45,332 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-05 22:16:45,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-05 22:16:45,391 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-05 22:16:45,391 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-05 22:16:45,391 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-05 22:16:45,391 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-05 22:16:45,392 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-05 22:16:45,392 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-05 22:16:45,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-05 22:16:45,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-05 22:16:45,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-05 22:16:45,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-05 22:16:45,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-05 22:16:45,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-05 22:16:45,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-05 22:16:45,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-05 22:16:45,403 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-05 22:16:45,962 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-05 22:16:45,962 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2021-10-05 22:16:45,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:16:45 BoogieIcfgContainer [2021-10-05 22:16:45,965 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-05 22:16:45,967 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-05 22:16:45,967 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-05 22:16:45,971 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-05 22:16:45,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 10:16:44" (1/3) ... [2021-10-05 22:16:45,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5db1b3a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:16:45, skipping insertion in model container [2021-10-05 22:16:45,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:16:45" (2/3) ... [2021-10-05 22:16:45,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5db1b3a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:16:45, skipping insertion in model container [2021-10-05 22:16:45,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:16:45" (3/3) ... [2021-10-05 22:16:45,975 INFO L111 eAbstractionObserver]: Analyzing ICFG chromosome-trans.wvr.c [2021-10-05 22:16:45,980 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-05 22:16:45,981 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-05 22:16:45,981 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-05 22:16:45,981 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-05 22:16:46,031 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,031 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,032 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,032 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,032 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,032 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,033 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,033 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,033 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,034 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,034 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,034 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,034 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,035 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,035 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,035 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,036 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,036 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,036 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,036 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,037 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,037 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,037 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,038 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,038 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,038 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,038 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,039 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,039 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,039 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,039 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,040 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,040 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,040 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,041 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,041 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,041 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,041 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,042 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,042 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,042 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,042 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,043 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,043 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,044 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,044 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,044 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,045 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,045 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,045 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,046 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,046 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,046 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,046 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,047 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,047 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,047 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,047 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,048 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,048 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,048 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,049 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,049 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,049 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,050 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,050 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,050 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,050 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,051 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,051 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,051 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,052 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,052 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,052 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,052 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,053 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,053 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,053 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,054 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,054 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,054 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,054 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,055 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,055 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,055 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,055 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,056 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,056 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,057 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,057 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,057 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,058 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,058 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,058 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,058 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,059 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,059 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,059 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,059 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,060 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,060 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,060 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,061 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,061 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,061 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,062 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,062 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,062 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,063 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,063 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,063 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,063 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,064 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,064 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,064 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,064 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,065 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,065 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,065 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,065 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,066 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,066 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,066 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,067 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,067 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,067 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,067 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,068 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,068 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,068 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,068 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,069 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,072 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,072 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,073 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,073 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,073 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,074 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,074 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,074 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,079 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,079 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,080 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,080 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,080 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,080 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,081 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,081 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,083 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,083 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,083 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,084 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,084 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,084 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,084 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,085 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:16:46,094 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-05 22:16:46,164 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-05 22:16:46,177 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 [2021-10-05 22:16:46,177 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-05 22:16:46,218 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-05 22:16:46,231 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 204 places, 216 transitions, 456 flow [2021-10-05 22:16:46,235 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 204 places, 216 transitions, 456 flow [2021-10-05 22:16:46,238 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 204 places, 216 transitions, 456 flow [2021-10-05 22:16:46,382 INFO L129 PetriNetUnfolder]: 22/213 cut-off events. [2021-10-05 22:16:46,382 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-05 22:16:46,390 INFO L84 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 213 events. 22/213 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 232 event pairs, 0 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 169. Up to 3 conditions per place. [2021-10-05 22:16:46,396 INFO L116 LiptonReduction]: Number of co-enabled transitions 4272 [2021-10-05 22:16:53,536 INFO L131 LiptonReduction]: Checked pairs total: 4927 [2021-10-05 22:16:53,537 INFO L133 LiptonReduction]: Total number of compositions: 218 [2021-10-05 22:16:53,546 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 36 transitions, 96 flow [2021-10-05 22:16:53,574 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 173 states, 172 states have (on average 3.5697674418604652) internal successors, (614), 172 states have internal predecessors, (614), 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) [2021-10-05 22:16:53,578 INFO L276 IsEmpty]: Start isEmpty. Operand has 173 states, 172 states have (on average 3.5697674418604652) internal successors, (614), 172 states have internal predecessors, (614), 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) [2021-10-05 22:16:53,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-05 22:16:53,590 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:16:53,595 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 22:16:53,596 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-05 22:16:53,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:16:53,602 INFO L82 PathProgramCache]: Analyzing trace with hash 1901330549, now seen corresponding path program 1 times [2021-10-05 22:16:53,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:16:53,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764779938] [2021-10-05 22:16:53,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:16:53,614 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:16:53,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:16:53,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-05 22:16:53,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:16:53,905 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764779938] [2021-10-05 22:16:53,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764779938] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 22:16:53,906 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-05 22:16:53,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-05 22:16:53,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440157263] [2021-10-05 22:16:53,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-05 22:16:53,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:16:53,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-05 22:16:53,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-05 22:16:53,946 INFO L87 Difference]: Start difference. First operand has 173 states, 172 states have (on average 3.5697674418604652) internal successors, (614), 172 states have internal predecessors, (614), 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, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 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) [2021-10-05 22:16:54,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:16:54,012 INFO L93 Difference]: Finished difference Result 176 states and 617 transitions. [2021-10-05 22:16:54,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-05 22:16:54,016 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 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 22 [2021-10-05 22:16:54,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:16:54,030 INFO L225 Difference]: With dead ends: 176 [2021-10-05 22:16:54,030 INFO L226 Difference]: Without dead ends: 176 [2021-10-05 22:16:54,031 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-05 22:16:54,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2021-10-05 22:16:54,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2021-10-05 22:16:54,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 175 states have (on average 3.525714285714286) internal successors, (617), 175 states have internal predecessors, (617), 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) [2021-10-05 22:16:54,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 617 transitions. [2021-10-05 22:16:54,092 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 617 transitions. Word has length 22 [2021-10-05 22:16:54,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:16:54,092 INFO L470 AbstractCegarLoop]: Abstraction has 176 states and 617 transitions. [2021-10-05 22:16:54,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 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) [2021-10-05 22:16:54,093 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 617 transitions. [2021-10-05 22:16:54,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-05 22:16:54,097 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:16:54,097 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 22:16:54,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-05 22:16:54,098 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-05 22:16:54,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:16:54,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1193845835, now seen corresponding path program 1 times [2021-10-05 22:16:54,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:16:54,099 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023529421] [2021-10-05 22:16:54,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:16:54,100 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:16:54,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:16:54,273 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-05 22:16:54,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:16:54,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023529421] [2021-10-05 22:16:54,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023529421] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-05 22:16:54,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666052093] [2021-10-05 22:16:54,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:16:54,275 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-05 22:16:54,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-05 22:16:54,277 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-05 22:16:54,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-05 22:16:54,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:16:54,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-05 22:16:54,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-05 22:16:54,497 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-05 22:16:54,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666052093] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-05 22:16:54,498 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-05 22:16:54,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-10-05 22:16:54,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168741775] [2021-10-05 22:16:54,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-05 22:16:54,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:16:54,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-05 22:16:54,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-05 22:16:54,502 INFO L87 Difference]: Start difference. First operand 176 states and 617 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 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) [2021-10-05 22:16:54,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:16:54,549 INFO L93 Difference]: Finished difference Result 179 states and 620 transitions. [2021-10-05 22:16:54,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-05 22:16:54,552 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 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 25 [2021-10-05 22:16:54,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:16:54,557 INFO L225 Difference]: With dead ends: 179 [2021-10-05 22:16:54,560 INFO L226 Difference]: Without dead ends: 179 [2021-10-05 22:16:54,561 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.0ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-05 22:16:54,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2021-10-05 22:16:54,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2021-10-05 22:16:54,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 178 states have (on average 3.4831460674157304) internal successors, (620), 178 states have internal predecessors, (620), 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) [2021-10-05 22:16:54,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 620 transitions. [2021-10-05 22:16:54,613 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 620 transitions. Word has length 25 [2021-10-05 22:16:54,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:16:54,614 INFO L470 AbstractCegarLoop]: Abstraction has 179 states and 620 transitions. [2021-10-05 22:16:54,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 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) [2021-10-05 22:16:54,614 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 620 transitions. [2021-10-05 22:16:54,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-05 22:16:54,623 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:16:54,624 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 22:16:54,653 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-05 22:16:54,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-05 22:16:54,825 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-05 22:16:54,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:16:54,827 INFO L82 PathProgramCache]: Analyzing trace with hash -301028235, now seen corresponding path program 2 times [2021-10-05 22:16:54,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:16:54,827 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482491370] [2021-10-05 22:16:54,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:16:54,828 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:16:54,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:16:54,916 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-05 22:16:54,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:16:54,917 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482491370] [2021-10-05 22:16:54,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482491370] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-05 22:16:54,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803592917] [2021-10-05 22:16:54,920 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-05 22:16:54,920 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-05 22:16:54,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-05 22:16:54,924 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-05 22:16:54,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-05 22:16:55,016 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-05 22:16:55,016 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-05 22:16:55,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-05 22:16:55,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-05 22:16:55,116 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-05 22:16:55,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803592917] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 22:16:55,117 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-05 22:16:55,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2021-10-05 22:16:55,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102862239] [2021-10-05 22:16:55,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-05 22:16:55,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:16:55,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-05 22:16:55,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-05 22:16:55,122 INFO L87 Difference]: Start difference. First operand 179 states and 620 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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) [2021-10-05 22:16:55,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:16:55,148 INFO L93 Difference]: Finished difference Result 300 states and 1073 transitions. [2021-10-05 22:16:55,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-05 22:16:55,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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 28 [2021-10-05 22:16:55,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:16:55,156 INFO L225 Difference]: With dead ends: 300 [2021-10-05 22:16:55,156 INFO L226 Difference]: Without dead ends: 255 [2021-10-05 22:16:55,157 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 12.0ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-05 22:16:55,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2021-10-05 22:16:55,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 217. [2021-10-05 22:16:55,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 216 states have (on average 3.314814814814815) internal successors, (716), 216 states have internal predecessors, (716), 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) [2021-10-05 22:16:55,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 716 transitions. [2021-10-05 22:16:55,193 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 716 transitions. Word has length 28 [2021-10-05 22:16:55,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:16:55,194 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 716 transitions. [2021-10-05 22:16:55,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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) [2021-10-05 22:16:55,194 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 716 transitions. [2021-10-05 22:16:55,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-05 22:16:55,197 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:16:55,197 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 22:16:55,233 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-05 22:16:55,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-05 22:16:55,412 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-05 22:16:55,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:16:55,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1614593525, now seen corresponding path program 1 times [2021-10-05 22:16:55,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:16:55,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922590565] [2021-10-05 22:16:55,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:16:55,415 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:16:55,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:16:55,495 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-05 22:16:55,496 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:16:55,496 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922590565] [2021-10-05 22:16:55,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922590565] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-05 22:16:55,497 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099683842] [2021-10-05 22:16:55,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:16:55,497 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-05 22:16:55,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-05 22:16:55,498 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-05 22:16:55,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-05 22:16:55,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:16:55,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-05 22:16:55,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-05 22:16:55,715 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-10-05 22:16:55,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099683842] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-05 22:16:55,716 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-05 22:16:55,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2021-10-05 22:16:55,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30738061] [2021-10-05 22:16:55,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-05 22:16:55,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:16:55,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-05 22:16:55,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-05 22:16:55,719 INFO L87 Difference]: Start difference. First operand 217 states and 716 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 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) [2021-10-05 22:16:55,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:16:55,799 INFO L93 Difference]: Finished difference Result 354 states and 1193 transitions. [2021-10-05 22:16:55,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-05 22:16:55,800 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 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 30 [2021-10-05 22:16:55,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:16:55,805 INFO L225 Difference]: With dead ends: 354 [2021-10-05 22:16:55,805 INFO L226 Difference]: Without dead ends: 354 [2021-10-05 22:16:55,806 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 32.7ms TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-05 22:16:55,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2021-10-05 22:16:55,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 296. [2021-10-05 22:16:55,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 295 states have (on average 3.3457627118644067) internal successors, (987), 295 states have internal predecessors, (987), 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) [2021-10-05 22:16:55,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 987 transitions. [2021-10-05 22:16:55,826 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 987 transitions. Word has length 30 [2021-10-05 22:16:55,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:16:55,827 INFO L470 AbstractCegarLoop]: Abstraction has 296 states and 987 transitions. [2021-10-05 22:16:55,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 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) [2021-10-05 22:16:55,828 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 987 transitions. [2021-10-05 22:16:55,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-05 22:16:55,830 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:16:55,830 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 22:16:55,864 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-10-05 22:16:56,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-05 22:16:56,044 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-05 22:16:56,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:16:56,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1074048053, now seen corresponding path program 2 times [2021-10-05 22:16:56,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:16:56,047 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348221787] [2021-10-05 22:16:56,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:16:56,047 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:16:56,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:16:56,145 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-10-05 22:16:56,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:16:56,145 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348221787] [2021-10-05 22:16:56,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348221787] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-05 22:16:56,146 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94392487] [2021-10-05 22:16:56,146 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-05 22:16:56,146 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-05 22:16:56,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-05 22:16:56,148 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-05 22:16:56,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-05 22:16:56,267 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-05 22:16:56,267 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-05 22:16:56,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-05 22:16:56,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-05 22:16:56,362 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-10-05 22:16:56,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [94392487] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 22:16:56,362 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-05 22:16:56,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2021-10-05 22:16:56,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727290013] [2021-10-05 22:16:56,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-05 22:16:56,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:16:56,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-05 22:16:56,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-05 22:16:56,365 INFO L87 Difference]: Start difference. First operand 296 states and 987 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2021-10-05 22:16:56,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:16:56,402 INFO L93 Difference]: Finished difference Result 628 states and 2025 transitions. [2021-10-05 22:16:56,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-05 22:16:56,403 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 35 [2021-10-05 22:16:56,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:16:56,409 INFO L225 Difference]: With dead ends: 628 [2021-10-05 22:16:56,410 INFO L226 Difference]: Without dead ends: 612 [2021-10-05 22:16:56,410 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 38.1ms TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-05 22:16:56,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2021-10-05 22:16:56,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 306. [2021-10-05 22:16:56,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 305 states have (on average 3.3377049180327867) internal successors, (1018), 305 states have internal predecessors, (1018), 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) [2021-10-05 22:16:56,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 1018 transitions. [2021-10-05 22:16:56,429 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 1018 transitions. Word has length 35 [2021-10-05 22:16:56,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:16:56,430 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 1018 transitions. [2021-10-05 22:16:56,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2021-10-05 22:16:56,430 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 1018 transitions. [2021-10-05 22:16:56,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-05 22:16:56,432 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:16:56,432 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 22:16:56,471 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-05 22:16:56,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-05 22:16:56,648 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-05 22:16:56,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:16:56,649 INFO L82 PathProgramCache]: Analyzing trace with hash 254981513, now seen corresponding path program 3 times [2021-10-05 22:16:56,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:16:56,650 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544516176] [2021-10-05 22:16:56,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:16:56,651 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:16:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:16:56,743 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-10-05 22:16:56,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:16:56,744 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544516176] [2021-10-05 22:16:56,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544516176] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-05 22:16:56,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091920813] [2021-10-05 22:16:56,745 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-05 22:16:56,745 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-05 22:16:56,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-05 22:16:56,746 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-05 22:16:56,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-05 22:16:56,880 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-05 22:16:56,881 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-05 22:16:56,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-05 22:16:56,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-05 22:16:56,968 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-10-05 22:16:56,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2091920813] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 22:16:56,969 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-05 22:16:56,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2021-10-05 22:16:56,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749163036] [2021-10-05 22:16:56,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-05 22:16:56,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:16:56,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-05 22:16:56,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-05 22:16:56,971 INFO L87 Difference]: Start difference. First operand 306 states and 1018 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2021-10-05 22:16:56,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:16:56,994 INFO L93 Difference]: Finished difference Result 660 states and 2152 transitions. [2021-10-05 22:16:56,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-05 22:16:56,995 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 35 [2021-10-05 22:16:56,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:16:57,001 INFO L225 Difference]: With dead ends: 660 [2021-10-05 22:16:57,001 INFO L226 Difference]: Without dead ends: 660 [2021-10-05 22:16:57,002 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 34.0ms TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-05 22:16:57,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2021-10-05 22:16:57,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 354. [2021-10-05 22:16:57,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 353 states have (on average 3.3427762039660056) internal successors, (1180), 353 states have internal predecessors, (1180), 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) [2021-10-05 22:16:57,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 1180 transitions. [2021-10-05 22:16:57,024 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 1180 transitions. Word has length 35 [2021-10-05 22:16:57,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:16:57,024 INFO L470 AbstractCegarLoop]: Abstraction has 354 states and 1180 transitions. [2021-10-05 22:16:57,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2021-10-05 22:16:57,025 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 1180 transitions. [2021-10-05 22:16:57,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-05 22:16:57,027 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:16:57,027 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 22:16:57,064 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-05 22:16:57,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-05 22:16:57,242 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-05 22:16:57,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:16:57,243 INFO L82 PathProgramCache]: Analyzing trace with hash -2062824533, now seen corresponding path program 4 times [2021-10-05 22:16:57,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:16:57,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289491231] [2021-10-05 22:16:57,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:16:57,245 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:16:57,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:16:57,339 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-10-05 22:16:57,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:16:57,340 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289491231] [2021-10-05 22:16:57,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289491231] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-05 22:16:57,340 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [63878775] [2021-10-05 22:16:57,340 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-05 22:16:57,341 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-05 22:16:57,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-05 22:16:57,342 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-05 22:16:57,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-05 22:16:57,514 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-05 22:16:57,514 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-05 22:16:57,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-05 22:16:57,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-05 22:16:57,657 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-05 22:16:57,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [63878775] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-05 22:16:57,658 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-05 22:16:57,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 10 [2021-10-05 22:16:57,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313548902] [2021-10-05 22:16:57,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-05 22:16:57,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:16:57,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-05 22:16:57,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-10-05 22:16:57,660 INFO L87 Difference]: Start difference. First operand 354 states and 1180 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 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) [2021-10-05 22:16:57,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:16:57,745 INFO L93 Difference]: Finished difference Result 519 states and 1752 transitions. [2021-10-05 22:16:57,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-05 22:16:57,745 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 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 35 [2021-10-05 22:16:57,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:16:57,750 INFO L225 Difference]: With dead ends: 519 [2021-10-05 22:16:57,750 INFO L226 Difference]: Without dead ends: 519 [2021-10-05 22:16:57,751 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 58.0ms TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-10-05 22:16:57,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2021-10-05 22:16:57,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 449. [2021-10-05 22:16:57,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 448 states have (on average 3.359375) internal successors, (1505), 448 states have internal predecessors, (1505), 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) [2021-10-05 22:16:57,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 1505 transitions. [2021-10-05 22:16:57,783 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 1505 transitions. Word has length 35 [2021-10-05 22:16:57,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:16:57,785 INFO L470 AbstractCegarLoop]: Abstraction has 449 states and 1505 transitions. [2021-10-05 22:16:57,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 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) [2021-10-05 22:16:57,785 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 1505 transitions. [2021-10-05 22:16:57,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-05 22:16:57,787 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:16:57,788 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 22:16:57,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-05 22:16:58,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-05 22:16:58,002 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-05 22:16:58,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:16:58,003 INFO L82 PathProgramCache]: Analyzing trace with hash -324914603, now seen corresponding path program 5 times [2021-10-05 22:16:58,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:16:58,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350070645] [2021-10-05 22:16:58,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:16:58,004 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:16:58,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:16:58,120 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-05 22:16:58,120 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:16:58,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350070645] [2021-10-05 22:16:58,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350070645] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-05 22:16:58,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699507631] [2021-10-05 22:16:58,121 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-05 22:16:58,122 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-05 22:16:58,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-05 22:16:58,123 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-05 22:16:58,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-05 22:16:58,414 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-10-05 22:16:58,414 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-05 22:16:58,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-05 22:16:58,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-05 22:16:58,584 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-10-05 22:16:58,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1699507631] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-05 22:16:58,584 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-05 22:16:58,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2021-10-05 22:16:58,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666363046] [2021-10-05 22:16:58,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-05 22:16:58,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:16:58,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-05 22:16:58,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-10-05 22:16:58,587 INFO L87 Difference]: Start difference. First operand 449 states and 1505 transitions. Second operand has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 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) [2021-10-05 22:16:58,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:16:58,706 INFO L93 Difference]: Finished difference Result 614 states and 2077 transitions. [2021-10-05 22:16:58,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-05 22:16:58,707 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 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 40 [2021-10-05 22:16:58,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:16:58,713 INFO L225 Difference]: With dead ends: 614 [2021-10-05 22:16:58,713 INFO L226 Difference]: Without dead ends: 614 [2021-10-05 22:16:58,714 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 74.0ms TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-10-05 22:16:58,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2021-10-05 22:16:58,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 544. [2021-10-05 22:16:58,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 543 states have (on average 3.3701657458563536) internal successors, (1830), 543 states have internal predecessors, (1830), 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) [2021-10-05 22:16:58,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 1830 transitions. [2021-10-05 22:16:58,737 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 1830 transitions. Word has length 40 [2021-10-05 22:16:58,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:16:58,738 INFO L470 AbstractCegarLoop]: Abstraction has 544 states and 1830 transitions. [2021-10-05 22:16:58,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 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) [2021-10-05 22:16:58,738 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 1830 transitions. [2021-10-05 22:16:58,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-05 22:16:58,741 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:16:58,741 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 22:16:58,772 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-05 22:16:58,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-05 22:16:58,957 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-05 22:16:58,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:16:58,958 INFO L82 PathProgramCache]: Analyzing trace with hash -1344035285, now seen corresponding path program 6 times [2021-10-05 22:16:58,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:16:58,959 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003781970] [2021-10-05 22:16:58,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:16:58,960 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:16:59,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:16:59,105 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-10-05 22:16:59,106 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:16:59,106 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003781970] [2021-10-05 22:16:59,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003781970] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-05 22:16:59,106 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1557795583] [2021-10-05 22:16:59,107 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-05 22:16:59,107 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-05 22:16:59,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-05 22:16:59,108 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-05 22:16:59,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-05 22:16:59,240 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-05 22:16:59,241 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-05 22:16:59,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-05 22:16:59,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-05 22:16:59,368 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-10-05 22:16:59,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1557795583] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 22:16:59,369 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-05 22:16:59,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2021-10-05 22:16:59,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266659366] [2021-10-05 22:16:59,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-05 22:16:59,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:16:59,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-05 22:16:59,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-10-05 22:16:59,371 INFO L87 Difference]: Start difference. First operand 544 states and 1830 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2021-10-05 22:16:59,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:16:59,403 INFO L93 Difference]: Finished difference Result 852 states and 2834 transitions. [2021-10-05 22:16:59,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-05 22:16:59,404 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 45 [2021-10-05 22:16:59,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:16:59,412 INFO L225 Difference]: With dead ends: 852 [2021-10-05 22:16:59,412 INFO L226 Difference]: Without dead ends: 852 [2021-10-05 22:16:59,412 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 51.2ms TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-10-05 22:16:59,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2021-10-05 22:16:59,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 544. [2021-10-05 22:16:59,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 543 states have (on average 3.3701657458563536) internal successors, (1830), 543 states have internal predecessors, (1830), 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) [2021-10-05 22:16:59,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 1830 transitions. [2021-10-05 22:16:59,439 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 1830 transitions. Word has length 45 [2021-10-05 22:16:59,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:16:59,440 INFO L470 AbstractCegarLoop]: Abstraction has 544 states and 1830 transitions. [2021-10-05 22:16:59,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2021-10-05 22:16:59,440 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 1830 transitions. [2021-10-05 22:16:59,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-10-05 22:16:59,443 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:16:59,443 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 22:16:59,480 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-05 22:16:59,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-05 22:16:59,659 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-05 22:16:59,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:16:59,660 INFO L82 PathProgramCache]: Analyzing trace with hash 140858567, now seen corresponding path program 1 times [2021-10-05 22:16:59,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:16:59,661 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765210334] [2021-10-05 22:16:59,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:16:59,661 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:16:59,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:16:59,815 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-10-05 22:16:59,815 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:16:59,815 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765210334] [2021-10-05 22:16:59,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765210334] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-05 22:16:59,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917503920] [2021-10-05 22:16:59,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:16:59,816 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-05 22:16:59,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-05 22:16:59,817 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-05 22:16:59,822 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-05 22:16:59,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:16:59,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-05 22:16:59,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-05 22:17:00,129 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-10-05 22:17:00,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1917503920] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-05 22:17:00,130 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-05 22:17:00,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2021-10-05 22:17:00,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405744400] [2021-10-05 22:17:00,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-05 22:17:00,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:17:00,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-05 22:17:00,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-10-05 22:17:00,132 INFO L87 Difference]: Start difference. First operand 544 states and 1830 transitions. Second operand has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 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) [2021-10-05 22:17:00,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:17:00,216 INFO L93 Difference]: Finished difference Result 660 states and 2238 transitions. [2021-10-05 22:17:00,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-05 22:17:00,216 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 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) Word has length 46 [2021-10-05 22:17:00,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:17:00,223 INFO L225 Difference]: With dead ends: 660 [2021-10-05 22:17:00,223 INFO L226 Difference]: Without dead ends: 660 [2021-10-05 22:17:00,224 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 60.0ms TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-10-05 22:17:00,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2021-10-05 22:17:00,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 636. [2021-10-05 22:17:00,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 635 states have (on average 3.3889763779527557) internal successors, (2152), 635 states have internal predecessors, (2152), 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) [2021-10-05 22:17:00,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 2152 transitions. [2021-10-05 22:17:00,252 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 2152 transitions. Word has length 46 [2021-10-05 22:17:00,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:17:00,253 INFO L470 AbstractCegarLoop]: Abstraction has 636 states and 2152 transitions. [2021-10-05 22:17:00,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 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) [2021-10-05 22:17:00,253 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 2152 transitions. [2021-10-05 22:17:00,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-10-05 22:17:00,256 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:17:00,256 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 22:17:00,297 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-05 22:17:00,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-05 22:17:00,470 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-05 22:17:00,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:17:00,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1066047943, now seen corresponding path program 2 times [2021-10-05 22:17:00,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:17:00,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815724036] [2021-10-05 22:17:00,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:17:00,473 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:17:00,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:17:00,614 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-10-05 22:17:00,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:17:00,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815724036] [2021-10-05 22:17:00,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815724036] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 22:17:00,616 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-05 22:17:00,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-05 22:17:00,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341209987] [2021-10-05 22:17:00,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-05 22:17:00,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:17:00,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-05 22:17:00,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-05 22:17:00,620 INFO L87 Difference]: Start difference. First operand 636 states and 2152 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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) [2021-10-05 22:17:00,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:17:00,645 INFO L93 Difference]: Finished difference Result 827 states and 2648 transitions. [2021-10-05 22:17:00,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-05 22:17:00,646 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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 48 [2021-10-05 22:17:00,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:17:00,652 INFO L225 Difference]: With dead ends: 827 [2021-10-05 22:17:00,652 INFO L226 Difference]: Without dead ends: 636 [2021-10-05 22:17:00,652 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-05 22:17:00,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2021-10-05 22:17:00,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 636. [2021-10-05 22:17:00,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 635 states have (on average 3.222047244094488) internal successors, (2046), 635 states have internal predecessors, (2046), 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) [2021-10-05 22:17:00,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 2046 transitions. [2021-10-05 22:17:00,682 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 2046 transitions. Word has length 48 [2021-10-05 22:17:00,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:17:00,683 INFO L470 AbstractCegarLoop]: Abstraction has 636 states and 2046 transitions. [2021-10-05 22:17:00,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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) [2021-10-05 22:17:00,683 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 2046 transitions. [2021-10-05 22:17:00,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-10-05 22:17:00,686 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:17:00,686 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 22:17:00,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-05 22:17:00,687 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-05 22:17:00,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:17:00,687 INFO L82 PathProgramCache]: Analyzing trace with hash -1123910534, now seen corresponding path program 1 times [2021-10-05 22:17:00,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:17:00,688 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678861601] [2021-10-05 22:17:00,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:17:00,688 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:17:00,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:17:00,777 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-10-05 22:17:00,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:17:00,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678861601] [2021-10-05 22:17:00,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678861601] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-05 22:17:00,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489930250] [2021-10-05 22:17:00,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:17:00,778 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-05 22:17:00,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-05 22:17:00,779 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-05 22:17:00,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-05 22:17:00,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:17:00,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-05 22:17:00,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-05 22:17:01,103 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-10-05 22:17:01,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489930250] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-05 22:17:01,104 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-05 22:17:01,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-10-05 22:17:01,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366950000] [2021-10-05 22:17:01,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-05 22:17:01,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:17:01,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-05 22:17:01,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-05 22:17:01,106 INFO L87 Difference]: Start difference. First operand 636 states and 2046 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 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) [2021-10-05 22:17:01,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:17:01,158 INFO L93 Difference]: Finished difference Result 1050 states and 3435 transitions. [2021-10-05 22:17:01,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-05 22:17:01,159 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 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 49 [2021-10-05 22:17:01,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:17:01,167 INFO L225 Difference]: With dead ends: 1050 [2021-10-05 22:17:01,168 INFO L226 Difference]: Without dead ends: 1050 [2021-10-05 22:17:01,168 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 25.3ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-05 22:17:01,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1050 states. [2021-10-05 22:17:01,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1050 to 848. [2021-10-05 22:17:01,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 847 states have (on average 3.2538370720188903) internal successors, (2756), 847 states have internal predecessors, (2756), 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) [2021-10-05 22:17:01,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 2756 transitions. [2021-10-05 22:17:01,203 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 2756 transitions. Word has length 49 [2021-10-05 22:17:01,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:17:01,203 INFO L470 AbstractCegarLoop]: Abstraction has 848 states and 2756 transitions. [2021-10-05 22:17:01,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 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) [2021-10-05 22:17:01,204 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 2756 transitions. [2021-10-05 22:17:01,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-05 22:17:01,207 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:17:01,208 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 22:17:01,248 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-05 22:17:01,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-10-05 22:17:01,422 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-05 22:17:01,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:17:01,423 INFO L82 PathProgramCache]: Analyzing trace with hash -145038871, now seen corresponding path program 2 times [2021-10-05 22:17:01,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:17:01,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101136014] [2021-10-05 22:17:01,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:17:01,424 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:17:01,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:17:01,502 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-10-05 22:17:01,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:17:01,502 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101136014] [2021-10-05 22:17:01,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101136014] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-05 22:17:01,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872394589] [2021-10-05 22:17:01,503 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-05 22:17:01,503 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-05 22:17:01,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-05 22:17:01,504 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-05 22:17:01,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-05 22:17:01,713 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-05 22:17:01,713 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-05 22:17:01,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-05 22:17:01,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-05 22:17:01,863 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-10-05 22:17:01,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872394589] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-05 22:17:01,863 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-05 22:17:01,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-10-05 22:17:01,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430871489] [2021-10-05 22:17:01,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-05 22:17:01,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:17:01,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-05 22:17:01,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-05 22:17:01,865 INFO L87 Difference]: Start difference. First operand 848 states and 2756 transitions. Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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) [2021-10-05 22:17:01,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:17:01,908 INFO L93 Difference]: Finished difference Result 1262 states and 4145 transitions. [2021-10-05 22:17:01,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-05 22:17:01,909 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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 51 [2021-10-05 22:17:01,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:17:01,921 INFO L225 Difference]: With dead ends: 1262 [2021-10-05 22:17:01,921 INFO L226 Difference]: Without dead ends: 1262 [2021-10-05 22:17:01,921 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 32.2ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-05 22:17:01,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1262 states. [2021-10-05 22:17:01,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1262 to 1060. [2021-10-05 22:17:01,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1060 states, 1059 states have (on average 3.2728989612842305) internal successors, (3466), 1059 states have internal predecessors, (3466), 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) [2021-10-05 22:17:01,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1060 states to 1060 states and 3466 transitions. [2021-10-05 22:17:01,963 INFO L78 Accepts]: Start accepts. Automaton has 1060 states and 3466 transitions. Word has length 51 [2021-10-05 22:17:01,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:17:01,963 INFO L470 AbstractCegarLoop]: Abstraction has 1060 states and 3466 transitions. [2021-10-05 22:17:01,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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) [2021-10-05 22:17:01,964 INFO L276 IsEmpty]: Start isEmpty. Operand 1060 states and 3466 transitions. [2021-10-05 22:17:01,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-05 22:17:01,968 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:17:01,968 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 22:17:02,004 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-05 22:17:02,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-05 22:17:02,183 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-05 22:17:02,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:17:02,184 INFO L82 PathProgramCache]: Analyzing trace with hash -47208552, now seen corresponding path program 3 times [2021-10-05 22:17:02,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:17:02,184 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961498943] [2021-10-05 22:17:02,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:17:02,185 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:17:02,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:17:02,269 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-10-05 22:17:02,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:17:02,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961498943] [2021-10-05 22:17:02,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961498943] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-05 22:17:02,271 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717696895] [2021-10-05 22:17:02,271 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-05 22:17:02,271 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-05 22:17:02,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-05 22:17:02,274 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-05 22:17:02,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-05 22:17:02,639 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-05 22:17:02,639 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-05 22:17:02,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-05 22:17:02,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-05 22:17:02,827 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-10-05 22:17:02,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717696895] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-05 22:17:02,828 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-05 22:17:02,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-10-05 22:17:02,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806991639] [2021-10-05 22:17:02,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-05 22:17:02,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:17:02,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-05 22:17:02,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-10-05 22:17:02,830 INFO L87 Difference]: Start difference. First operand 1060 states and 3466 transitions. Second operand has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 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) [2021-10-05 22:17:02,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:17:02,907 INFO L93 Difference]: Finished difference Result 1474 states and 4855 transitions. [2021-10-05 22:17:02,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-05 22:17:02,908 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 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 53 [2021-10-05 22:17:02,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:17:02,920 INFO L225 Difference]: With dead ends: 1474 [2021-10-05 22:17:02,920 INFO L226 Difference]: Without dead ends: 1474 [2021-10-05 22:17:02,920 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 43.2ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-10-05 22:17:02,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2021-10-05 22:17:02,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1272. [2021-10-05 22:17:02,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1272 states, 1271 states have (on average 3.2856018882769473) internal successors, (4176), 1271 states have internal predecessors, (4176), 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) [2021-10-05 22:17:02,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 4176 transitions. [2021-10-05 22:17:02,964 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 4176 transitions. Word has length 53 [2021-10-05 22:17:02,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:17:02,964 INFO L470 AbstractCegarLoop]: Abstraction has 1272 states and 4176 transitions. [2021-10-05 22:17:02,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 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) [2021-10-05 22:17:02,965 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 4176 transitions. [2021-10-05 22:17:02,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-05 22:17:02,969 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:17:02,969 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 22:17:03,006 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-05 22:17:03,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-05 22:17:03,183 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-05 22:17:03,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:17:03,184 INFO L82 PathProgramCache]: Analyzing trace with hash -521552505, now seen corresponding path program 4 times [2021-10-05 22:17:03,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:17:03,184 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079964040] [2021-10-05 22:17:03,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:17:03,185 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:17:03,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:17:03,288 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-10-05 22:17:03,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:17:03,289 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079964040] [2021-10-05 22:17:03,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079964040] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-05 22:17:03,289 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153478277] [2021-10-05 22:17:03,289 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-05 22:17:03,290 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-05 22:17:03,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-05 22:17:03,291 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-05 22:17:03,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-05 22:17:03,517 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-05 22:17:03,518 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-05 22:17:03,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-05 22:17:03,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-05 22:17:03,681 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-10-05 22:17:03,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153478277] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-05 22:17:03,681 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-05 22:17:03,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2021-10-05 22:17:03,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851319605] [2021-10-05 22:17:03,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-05 22:17:03,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:17:03,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-05 22:17:03,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-10-05 22:17:03,684 INFO L87 Difference]: Start difference. First operand 1272 states and 4176 transitions. Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 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) [2021-10-05 22:17:03,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:17:03,763 INFO L93 Difference]: Finished difference Result 1580 states and 5210 transitions. [2021-10-05 22:17:03,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-05 22:17:03,764 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 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 55 [2021-10-05 22:17:03,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:17:03,776 INFO L225 Difference]: With dead ends: 1580 [2021-10-05 22:17:03,777 INFO L226 Difference]: Without dead ends: 1580 [2021-10-05 22:17:03,777 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 51.7ms TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-10-05 22:17:03,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1580 states. [2021-10-05 22:17:03,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1580 to 1484. [2021-10-05 22:17:03,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1484 states, 1483 states have (on average 3.2946729602157787) internal successors, (4886), 1483 states have internal predecessors, (4886), 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) [2021-10-05 22:17:03,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1484 states to 1484 states and 4886 transitions. [2021-10-05 22:17:03,825 INFO L78 Accepts]: Start accepts. Automaton has 1484 states and 4886 transitions. Word has length 55 [2021-10-05 22:17:03,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:17:03,826 INFO L470 AbstractCegarLoop]: Abstraction has 1484 states and 4886 transitions. [2021-10-05 22:17:03,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 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) [2021-10-05 22:17:03,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1484 states and 4886 transitions. [2021-10-05 22:17:03,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-10-05 22:17:03,832 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:17:03,832 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 22:17:03,868 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-05 22:17:04,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-10-05 22:17:04,047 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-05 22:17:04,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:17:04,048 INFO L82 PathProgramCache]: Analyzing trace with hash -1099557962, now seen corresponding path program 5 times [2021-10-05 22:17:04,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:17:04,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800995284] [2021-10-05 22:17:04,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:17:04,049 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:17:04,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-05 22:17:04,323 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-05 22:17:04,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-05 22:17:04,530 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-05 22:17:04,530 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-05 22:17:04,532 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-05 22:17:04,535 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-05 22:17:04,535 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-05 22:17:04,535 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-05 22:17:04,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-05 22:17:04,542 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-05 22:17:04,542 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-05 22:17:04,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 10:17:04 BasicIcfg [2021-10-05 22:17:04,668 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-05 22:17:04,669 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-05 22:17:04,669 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-05 22:17:04,669 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-05 22:17:04,670 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:16:45" (3/4) ... [2021-10-05 22:17:04,672 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-05 22:17:04,846 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-10-05 22:17:04,847 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-05 22:17:04,848 INFO L168 Benchmark]: Toolchain (without parser) took 19964.41 ms. Allocated memory was 56.6 MB in the beginning and 176.2 MB in the end (delta: 119.5 MB). Free memory was 32.2 MB in the beginning and 139.6 MB in the end (delta: -107.4 MB). Peak memory consumption was 91.2 MB. Max. memory is 16.1 GB. [2021-10-05 22:17:04,849 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 46.1 MB. Free memory was 25.0 MB in the beginning and 24.9 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-05 22:17:04,849 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.99 ms. Allocated memory is still 56.6 MB. Free memory was 31.9 MB in the beginning and 34.3 MB in the end (delta: -2.5 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2021-10-05 22:17:04,850 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.61 ms. Allocated memory is still 56.6 MB. Free memory was 34.3 MB in the beginning and 32.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-05 22:17:04,850 INFO L168 Benchmark]: Boogie Preprocessor took 41.33 ms. Allocated memory is still 56.6 MB. Free memory was 32.2 MB in the beginning and 30.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-05 22:17:04,851 INFO L168 Benchmark]: RCFGBuilder took 683.78 ms. Allocated memory is still 56.6 MB. Free memory was 30.4 MB in the beginning and 26.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-05 22:17:04,851 INFO L168 Benchmark]: TraceAbstraction took 18701.61 ms. Allocated memory was 56.6 MB in the beginning and 146.8 MB in the end (delta: 90.2 MB). Free memory was 25.8 MB in the beginning and 58.9 MB in the end (delta: -33.0 MB). Peak memory consumption was 58.4 MB. Max. memory is 16.1 GB. [2021-10-05 22:17:04,852 INFO L168 Benchmark]: Witness Printer took 177.69 ms. Allocated memory was 146.8 MB in the beginning and 176.2 MB in the end (delta: 29.4 MB). Free memory was 58.9 MB in the beginning and 139.6 MB in the end (delta: -80.8 MB). Peak memory consumption was 25.1 MB. Max. memory is 16.1 GB. [2021-10-05 22:17:04,854 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 46.1 MB. Free memory was 25.0 MB in the beginning and 24.9 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 293.99 ms. Allocated memory is still 56.6 MB. Free memory was 31.9 MB in the beginning and 34.3 MB in the end (delta: -2.5 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.61 ms. Allocated memory is still 56.6 MB. Free memory was 34.3 MB in the beginning and 32.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.33 ms. Allocated memory is still 56.6 MB. Free memory was 32.2 MB in the beginning and 30.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 683.78 ms. Allocated memory is still 56.6 MB. Free memory was 30.4 MB in the beginning and 26.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 18701.61 ms. Allocated memory was 56.6 MB in the beginning and 146.8 MB in the end (delta: 90.2 MB). Free memory was 25.8 MB in the beginning and 58.9 MB in the end (delta: -33.0 MB). Peak memory consumption was 58.4 MB. Max. memory is 16.1 GB. * Witness Printer took 177.69 ms. Allocated memory was 146.8 MB in the beginning and 176.2 MB in the end (delta: 29.4 MB). Free memory was 58.9 MB in the beginning and 139.6 MB in the end (delta: -80.8 MB). Peak memory consumption was 25.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7302.0ms, 204 PlacesBefore, 38 PlacesAfterwards, 216 TransitionsBefore, 36 TransitionsAfterwards, 4272 CoEnabledTransitionPairs, 6 FixpointIterations, 110 TrivialSequentialCompositions, 67 ConcurrentSequentialCompositions, 18 TrivialYvCompositions, 9 ConcurrentYvCompositions, 14 ChoiceCompositions, 218 TotalNumberOfCompositions, 4927 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3770, positive: 3696, positive conditional: 0, positive unconditional: 3696, negative: 74, negative conditional: 0, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2809, positive: 2781, positive conditional: 0, positive unconditional: 2781, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2809, positive: 2781, positive conditional: 0, positive unconditional: 2781, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 28, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 72, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 72, negative conditional: 0, negative unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3770, positive: 915, positive conditional: 0, positive unconditional: 915, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 2809, unknown conditional: 0, unknown unconditional: 2809] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8 - 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: 100]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L38] 0 int *a1, *a2, *a3; [L39] 0 int res1, res2, res3; [L40] 0 _Bool isNull1, isNull2, isNull3; [L82] 0 pthread_t t1, t2, t3; [L35] COND FALSE 0 !(!cond) [L106] 0 int* arr = (int*)malloc(sizeof(int) * size); [L107] 0 int i = 0; VAL [a1={0:0}, a2={0:0}, a3={0:0}, isNull1=0, isNull2=0, isNull3=0, res1=0, res2=0, res3=0] [L107] COND TRUE 0 i < size [L108] 0 arr[i] = __VERIFIER_nondet_int() [L107] 0 i++ VAL [a1={0:0}, a2={0:0}, a3={0:0}, isNull1=0, isNull2=0, isNull3=0, res1=0, res2=0, res3=0] [L107] COND TRUE 0 i < size [L108] 0 arr[i] = __VERIFIER_nondet_int() [L107] 0 i++ VAL [a1={0:0}, a2={0:0}, a3={0:0}, isNull1=0, isNull2=0, isNull3=0, res1=0, res2=0, res3=0] [L107] COND TRUE 0 i < size [L108] 0 arr[i] = __VERIFIER_nondet_int() [L107] 0 i++ VAL [a1={0:0}, a2={0:0}, a3={0:0}, isNull1=0, isNull2=0, isNull3=0, res1=0, res2=0, res3=0] [L107] COND TRUE 0 i < size [L108] 0 arr[i] = __VERIFIER_nondet_int() [L107] 0 i++ VAL [a1={0:0}, a2={0:0}, a3={0:0}, isNull1=0, isNull2=0, isNull3=0, res1=0, res2=0, res3=0] [L107] COND TRUE 0 i < size [L108] 0 arr[i] = __VERIFIER_nondet_int() [L107] 0 i++ VAL [a1={0:0}, a2={0:0}, a3={0:0}, isNull1=0, isNull2=0, isNull3=0, res1=0, res2=0, res3=0] [L107] COND FALSE 0 !(i < size) [L110] 0 return arr; [L84] 0 a1 = create_fresh_int_array(5) [L35] COND FALSE 0 !(!cond) [L106] 0 int* arr = (int*)malloc(sizeof(int) * size); [L107] 0 int i = 0; VAL [a1={6:0}, a2={0:0}, a3={0:0}, isNull1=0, isNull2=0, isNull3=0, res1=0, res2=0, res3=0] [L107] COND TRUE 0 i < size [L108] 0 arr[i] = __VERIFIER_nondet_int() [L107] 0 i++ VAL [a1={6:0}, a2={0:0}, a3={0:0}, isNull1=0, isNull2=0, isNull3=0, res1=0, res2=0, res3=0] [L107] COND TRUE 0 i < size [L108] 0 arr[i] = __VERIFIER_nondet_int() [L107] 0 i++ VAL [a1={6:0}, a2={0:0}, a3={0:0}, isNull1=0, isNull2=0, isNull3=0, res1=0, res2=0, res3=0] [L107] COND TRUE 0 i < size [L108] 0 arr[i] = __VERIFIER_nondet_int() [L107] 0 i++ VAL [a1={6:0}, a2={0:0}, a3={0:0}, isNull1=0, isNull2=0, isNull3=0, res1=0, res2=0, res3=0] [L107] COND TRUE 0 i < size [L108] 0 arr[i] = __VERIFIER_nondet_int() [L107] 0 i++ VAL [a1={6:0}, a2={0:0}, a3={0:0}, isNull1=0, isNull2=0, isNull3=0, res1=0, res2=0, res3=0] [L107] COND TRUE 0 i < size [L108] 0 arr[i] = __VERIFIER_nondet_int() [L107] 0 i++ VAL [a1={6:0}, a2={0:0}, a3={0:0}, isNull1=0, isNull2=0, isNull3=0, res1=0, res2=0, res3=0] [L107] COND FALSE 0 !(i < size) [L110] 0 return arr; [L85] 0 a2 = create_fresh_int_array(5) [L35] COND FALSE 0 !(!cond) [L106] 0 int* arr = (int*)malloc(sizeof(int) * size); [L107] 0 int i = 0; VAL [a1={6:0}, a2={-8:0}, a3={0:0}, isNull1=0, isNull2=0, isNull3=0, res1=0, res2=0, res3=0] [L107] COND TRUE 0 i < size [L108] 0 arr[i] = __VERIFIER_nondet_int() [L107] 0 i++ VAL [a1={6:0}, a2={-8:0}, a3={0:0}, isNull1=0, isNull2=0, isNull3=0, res1=0, res2=0, res3=0] [L107] COND TRUE 0 i < size [L108] 0 arr[i] = __VERIFIER_nondet_int() [L107] 0 i++ VAL [a1={6:0}, a2={-8:0}, a3={0:0}, isNull1=0, isNull2=0, isNull3=0, res1=0, res2=0, res3=0] [L107] COND TRUE 0 i < size [L108] 0 arr[i] = __VERIFIER_nondet_int() [L107] 0 i++ VAL [a1={6:0}, a2={-8:0}, a3={0:0}, isNull1=0, isNull2=0, isNull3=0, res1=0, res2=0, res3=0] [L107] COND TRUE 0 i < size [L108] 0 arr[i] = __VERIFIER_nondet_int() [L107] 0 i++ VAL [a1={6:0}, a2={-8:0}, a3={0:0}, isNull1=0, isNull2=0, isNull3=0, res1=0, res2=0, res3=0] [L107] COND TRUE 0 i < size [L108] 0 arr[i] = __VERIFIER_nondet_int() [L107] 0 i++ VAL [a1={6:0}, a2={-8:0}, a3={0:0}, isNull1=0, isNull2=0, isNull3=0, res1=0, res2=0, res3=0] [L107] COND FALSE 0 !(i < size) [L110] 0 return arr; [L86] 0 a3 = create_fresh_int_array(5) [L87] 0 isNull1 = __VERIFIER_nondet_bool() [L88] 0 isNull2 = __VERIFIER_nondet_bool() [L89] 0 isNull3 = __VERIFIER_nondet_bool() [L92] FCALL, FORK 0 pthread_create(&t1, NULL, thread1, NULL) VAL [a1={6:0}, a2={-8:0}, a3={7:0}, isNull1=512, isNull2=768, isNull3=256, res1=0, res2=0, res3=0] [L45] 1 int i = 0; [L35] COND FALSE 1 !(!cond) [L47] 1 res1 = 1 VAL [a1={6:0}, a2={-8:0}, a3={7:0}, isNull1=512, isNull2=768, isNull3=256, res1=1, res2=0, res3=0] [L48] COND TRUE 1 !isNull2 && i < 5 [L49] EXPR 1 a1[i] VAL [a1={6:0}, a2={-8:0}, a3={7:0}, isNull1=512, isNull2=768, isNull3=256, res1=1, res2=0, res3=0] [L49] EXPR 1 a2[i] [L49] 1 res1 = a1[i] - a2[i] [L50] COND FALSE 1 !(res1 == 0) [L53] 1 i++ VAL [a1={6:0}, a2={-8:0}, a3={7:0}, isNull1=512, isNull2=768, isNull3=256, res1=33, res2=0, res3=0] [L48] COND TRUE 1 !isNull2 && i < 5 [L49] EXPR 1 a1[i] VAL [a1={6:0}, a2={-8:0}, a3={7:0}, isNull1=512, isNull2=768, isNull3=256, res1=33, res2=0, res3=0] [L49] EXPR 1 a2[i] [L49] 1 res1 = a1[i] - a2[i] [L50] COND FALSE 1 !(res1 == 0) [L53] 1 i++ VAL [a1={6:0}, a2={-8:0}, a3={7:0}, isNull1=512, isNull2=768, isNull3=256, res1=4, res2=0, res3=0] [L48] COND TRUE 1 !isNull2 && i < 5 [L49] EXPR 1 a1[i] VAL [a1={6:0}, a2={-8:0}, a3={7:0}, isNull1=512, isNull2=768, isNull3=256, res1=4, res2=0, res3=0] [L49] EXPR 1 a2[i] [L49] 1 res1 = a1[i] - a2[i] [L50] COND FALSE 1 !(res1 == 0) [L53] 1 i++ VAL [a1={6:0}, a2={-8:0}, a3={7:0}, isNull1=512, isNull2=768, isNull3=256, res1=-3, res2=0, res3=0] [L48] COND TRUE 1 !isNull2 && i < 5 [L49] EXPR 1 a1[i] VAL [a1={6:0}, a2={-8:0}, a3={7:0}, isNull1=512, isNull2=768, isNull3=256, res1=-3, res2=0, res3=0] [L49] EXPR 1 a2[i] [L49] 1 res1 = a1[i] - a2[i] [L50] COND FALSE 1 !(res1 == 0) [L53] 1 i++ VAL [a1={6:0}, a2={-8:0}, a3={7:0}, isNull1=512, isNull2=768, isNull3=256, res1=1, res2=0, res3=0] [L48] COND TRUE 1 !isNull2 && i < 5 [L49] EXPR 1 a1[i] VAL [a1={6:0}, a2={-8:0}, a3={7:0}, isNull1=512, isNull2=768, isNull3=256, res1=1, res2=0, res3=0] [L49] EXPR 1 a2[i] [L49] 1 res1 = a1[i] - a2[i] [L50] COND FALSE 1 !(res1 == 0) [L53] 1 i++ VAL [a1={6:0}, a2={-8:0}, a3={7:0}, isNull1=512, isNull2=768, isNull3=256, res1=1, res2=0, res3=0] [L48] COND FALSE 1 !(!isNull2 && i < 5) [L93] FCALL, FORK 0 pthread_create(&t2, NULL, thread2, NULL) VAL [a1={6:0}, a2={-8:0}, a3={7:0}, isNull1=512, isNull2=768, isNull3=256, res1=1, res2=0, res3=0] [L58] 2 int i = 0; [L35] COND FALSE 2 !(!cond) VAL [a1={6:0}, a2={-8:0}, a3={7:0}, isNull1=512, isNull2=768, isNull3=256, res1=1, res2=0, res3=0] [L60] COND TRUE 2 !isNull3 && i < 5 [L61] EXPR 2 a2[i] VAL [a1={6:0}, a2={-8:0}, a3={7:0}, isNull1=512, isNull2=768, isNull3=256, res1=1, res2=0, res3=0] [L61] EXPR 2 a3[i] [L61] 2 res2 = a2[i] - a3[i] [L62] COND FALSE 2 !(res2 == 0) [L65] 2 i++ VAL [a1={6:0}, a2={-8:0}, a3={7:0}, isNull1=512, isNull2=768, isNull3=256, res1=1, res2=-33, res3=0] [L60] COND TRUE 2 !isNull3 && i < 5 [L61] EXPR 2 a2[i] VAL [a1={6:0}, a2={-8:0}, a3={7:0}, isNull1=512, isNull2=768, isNull3=256, res1=1, res2=-33, res3=0] [L61] EXPR 2 a3[i] [L61] 2 res2 = a2[i] - a3[i] [L62] COND FALSE 2 !(res2 == 0) [L65] 2 i++ VAL [a1={6:0}, a2={-8:0}, a3={7:0}, isNull1=512, isNull2=768, isNull3=256, res1=1, res2=24, res3=0] [L60] COND TRUE 2 !isNull3 && i < 5 [L61] EXPR 2 a2[i] VAL [a1={6:0}, a2={-8:0}, a3={7:0}, isNull1=512, isNull2=768, isNull3=256, res1=1, res2=24, res3=0] [L61] EXPR 2 a3[i] [L61] 2 res2 = a2[i] - a3[i] [L62] COND FALSE 2 !(res2 == 0) [L65] 2 i++ VAL [a1={6:0}, a2={-8:0}, a3={7:0}, isNull1=512, isNull2=768, isNull3=256, res1=1, res2=24, res3=0] [L60] COND TRUE 2 !isNull3 && i < 5 [L61] EXPR 2 a2[i] VAL [a1={6:0}, a2={-8:0}, a3={7:0}, isNull1=512, isNull2=768, isNull3=256, res1=1, res2=24, res3=0] [L61] EXPR 2 a3[i] [L61] 2 res2 = a2[i] - a3[i] [L62] COND FALSE 2 !(res2 == 0) [L65] 2 i++ VAL [a1={6:0}, a2={-8:0}, a3={7:0}, isNull1=512, isNull2=768, isNull3=256, res1=1, res2=24, res3=0] [L60] COND TRUE 2 !isNull3 && i < 5 [L61] EXPR 2 a2[i] VAL [a1={6:0}, a2={-8:0}, a3={7:0}, isNull1=512, isNull2=768, isNull3=256, res1=1, res2=24, res3=0] [L61] EXPR 2 a3[i] [L61] 2 res2 = a2[i] - a3[i] [L62] COND FALSE 2 !(res2 == 0) [L65] 2 i++ VAL [a1={6:0}, a2={-8:0}, a3={7:0}, isNull1=512, isNull2=768, isNull3=256, res1=1, res2=1, res3=0] [L60] COND FALSE 2 !(!isNull3 && i < 5) [L94] FCALL, FORK 0 pthread_create(&t3, NULL, thread3, NULL) VAL [a1={6:0}, a2={-8:0}, a3={7:0}, isNull1=512, isNull2=768, isNull3=256, res1=1, res2=1, res3=0] [L95] 0 \read(t1) VAL [a1={6:0}, a2={-8:0}, a3={7:0}, isNull1=512, isNull2=768, isNull3=256, res1=1, res2=1, res3=0] [L95] FCALL, JOIN 1 pthread_join(t1, 0) VAL [a1={6:0}, a2={-8:0}, a3={7:0}, isNull1=512, isNull2=768, isNull3=256, res1=1, res2=1, res3=0] [L70] 3 int i = 0; [L35] COND FALSE 3 !(!cond) VAL [a1={6:0}, a2={-8:0}, a3={7:0}, isNull1=512, isNull2=768, isNull3=256, res1=1, res2=1, res3=0] [L96] 0 \read(t2) VAL [a1={6:0}, a2={-8:0}, a3={7:0}, isNull1=512, isNull2=768, isNull3=256, res1=1, res2=1, res3=0] [L96] FCALL, JOIN 2 pthread_join(t2, 0) VAL [a1={6:0}, a2={-8:0}, a3={7:0}, isNull1=512, isNull2=768, isNull3=256, res1=1, res2=1, res3=0] [L97] 0 \read(t3) VAL [a1={6:0}, a2={-8:0}, a3={7:0}, isNull1=512, isNull2=768, isNull3=256, res1=1, res2=1, res3=0] [L72] COND TRUE 3 !isNull3 && i < 5 [L73] EXPR 3 a1[i] [L73] EXPR 3 a3[i] [L73] 3 res3 = a1[i] - a3[i] [L74] COND TRUE 3 res3 == 0 [L97] FCALL, JOIN 3 pthread_join(t3, 0) VAL [a1={6:0}, a2={-8:0}, a3={7:0}, isNull1=512, isNull2=768, isNull3=256, res1=1, res2=1, res3=0] [L35] COND FALSE 0 !(!cond) [L100] 0 reach_error() VAL [a1={6:0}, a2={-8:0}, a3={7:0}, isNull1=512, isNull2=768, isNull3=256, res1=1, res2=1, res3=0] - UnprovableResult [Line: 94]: 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: 93]: 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: 92]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 253 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 18377.5ms, OverallIterations: 16, TraceHistogramMax: 5, EmptinessCheckTime: 66.0ms, AutomataDifference: 1067.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7396.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 672 SDtfs, 853 SDslu, 1608 SDs, 0 SdLazy, 468 SolverSat, 108 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 485.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 600 GetRequests, 505 SyntacticMatches, 5 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 549.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1484occurred in iteration=15, InterpolantAutomatonStates: 89, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 501.2ms AutomataMinimizationTime, 15 MinimizatonAttempts, 1882 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 331.6ms SsaConstructionTime, 1728.9ms SatisfiabilityAnalysisTime, 2806.1ms InterpolantComputationTime, 1181 NumberOfCodeBlocks, 1122 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 1096 ConstructedInterpolants, 0 QuantifiedInterpolants, 2278 SizeOfPredicates, 22 NumberOfNonLiveVariables, 3969 ConjunctsInSsa, 82 ConjunctsInUnsatCore, 28 InterpolantComputations, 6 PerfectInterpolantSequences, 1034/1188 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! [2021-10-05 22:17:04,917 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...