./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi004.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ba91f4-ccbf-43bd-9ee1-aaa25bca8f92/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ba91f4-ccbf-43bd-9ee1-aaa25bca8f92/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ba91f4-ccbf-43bd-9ee1-aaa25bca8f92/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ba91f4-ccbf-43bd-9ee1-aaa25bca8f92/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi004.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ba91f4-ccbf-43bd-9ee1-aaa25bca8f92/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ba91f4-ccbf-43bd-9ee1-aaa25bca8f92/bin/uautomizer-GMMbpWq8iD --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 131a5c0bb00c7f6e11a814871ba4a0d65133507ca6f79e4b87c2742dbe2c5590 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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-b2eff8b [2021-10-28 22:47:41,408 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 22:47:41,411 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 22:47:41,467 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 22:47:41,467 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 22:47:41,471 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 22:47:41,474 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 22:47:41,478 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 22:47:41,481 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 22:47:41,489 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 22:47:41,490 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 22:47:41,492 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 22:47:41,493 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 22:47:41,496 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 22:47:41,501 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 22:47:41,510 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 22:47:41,512 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 22:47:41,513 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 22:47:41,516 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 22:47:41,524 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 22:47:41,527 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 22:47:41,528 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 22:47:41,532 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 22:47:41,534 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 22:47:41,546 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 22:47:41,547 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 22:47:41,547 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 22:47:41,550 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 22:47:41,551 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 22:47:41,552 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 22:47:41,554 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 22:47:41,555 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 22:47:41,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 22:47:41,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 22:47:41,560 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 22:47:41,560 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 22:47:41,561 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 22:47:41,562 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 22:47:41,562 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 22:47:41,563 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 22:47:41,564 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 22:47:41,565 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ba91f4-ccbf-43bd-9ee1-aaa25bca8f92/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 22:47:41,594 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 22:47:41,594 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 22:47:41,595 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 22:47:41,595 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 22:47:41,596 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 22:47:41,596 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 22:47:41,597 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 22:47:41,597 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 22:47:41,597 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 22:47:41,598 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 22:47:41,598 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 22:47:41,598 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 22:47:41,598 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 22:47:41,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 22:47:41,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 22:47:41,599 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 22:47:41,599 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 22:47:41,599 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 22:47:41,600 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 22:47:41,600 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 22:47:41,600 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 22:47:41,600 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 22:47:41,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 22:47:41,601 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 22:47:41,629 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 22:47:41,629 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 22:47:41,629 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 22:47:41,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 22:47:41,630 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 22:47:41,630 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 22:47:41,630 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 22:47:41,630 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 22:47:41,631 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ba91f4-ccbf-43bd-9ee1-aaa25bca8f92/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ba91f4-ccbf-43bd-9ee1-aaa25bca8f92/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 131a5c0bb00c7f6e11a814871ba4a0d65133507ca6f79e4b87c2742dbe2c5590 [2021-10-28 22:47:41,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 22:47:41,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 22:47:41,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 22:47:41,987 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 22:47:41,989 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 22:47:41,990 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ba91f4-ccbf-43bd-9ee1-aaa25bca8f92/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/pthread-wmm/rfi004.i [2021-10-28 22:47:42,078 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ba91f4-ccbf-43bd-9ee1-aaa25bca8f92/bin/uautomizer-GMMbpWq8iD/data/f18996eb4/66ec70821d5b4533919e22898f84dcea/FLAG4e1bae588 [2021-10-28 22:47:42,770 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 22:47:42,771 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ba91f4-ccbf-43bd-9ee1-aaa25bca8f92/sv-benchmarks/c/pthread-wmm/rfi004.i [2021-10-28 22:47:42,797 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ba91f4-ccbf-43bd-9ee1-aaa25bca8f92/bin/uautomizer-GMMbpWq8iD/data/f18996eb4/66ec70821d5b4533919e22898f84dcea/FLAG4e1bae588 [2021-10-28 22:47:42,986 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ba91f4-ccbf-43bd-9ee1-aaa25bca8f92/bin/uautomizer-GMMbpWq8iD/data/f18996eb4/66ec70821d5b4533919e22898f84dcea [2021-10-28 22:47:42,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 22:47:42,992 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 22:47:43,006 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 22:47:43,007 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 22:47:43,011 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 22:47:43,012 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:47:42" (1/1) ... [2021-10-28 22:47:43,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b443e9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:47:43, skipping insertion in model container [2021-10-28 22:47:43,015 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:47:42" (1/1) ... [2021-10-28 22:47:43,026 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 22:47:43,072 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 22:47:43,278 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ba91f4-ccbf-43bd-9ee1-aaa25bca8f92/sv-benchmarks/c/pthread-wmm/rfi004.i[983,996] [2021-10-28 22:47:43,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:47:43,561 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 22:47:43,572 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ba91f4-ccbf-43bd-9ee1-aaa25bca8f92/sv-benchmarks/c/pthread-wmm/rfi004.i[983,996] [2021-10-28 22:47:43,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:47:43,703 INFO L208 MainTranslator]: Completed translation [2021-10-28 22:47:43,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:47:43 WrapperNode [2021-10-28 22:47:43,704 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 22:47:43,705 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 22:47:43,706 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 22:47:43,706 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 22:47:43,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:47:43" (1/1) ... [2021-10-28 22:47:43,735 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:47:43" (1/1) ... [2021-10-28 22:47:43,772 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 22:47:43,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 22:47:43,773 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 22:47:43,773 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 22:47:43,785 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:47:43" (1/1) ... [2021-10-28 22:47:43,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:47:43" (1/1) ... [2021-10-28 22:47:43,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:47:43" (1/1) ... [2021-10-28 22:47:43,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:47:43" (1/1) ... [2021-10-28 22:47:43,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:47:43" (1/1) ... [2021-10-28 22:47:43,810 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:47:43" (1/1) ... [2021-10-28 22:47:43,814 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:47:43" (1/1) ... [2021-10-28 22:47:43,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 22:47:43,821 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 22:47:43,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 22:47:43,821 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 22:47:43,822 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:47:43" (1/1) ... [2021-10-28 22:47:43,831 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 22:47:43,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ba91f4-ccbf-43bd-9ee1-aaa25bca8f92/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:47:43,863 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ba91f4-ccbf-43bd-9ee1-aaa25bca8f92/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 22:47:43,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ba91f4-ccbf-43bd-9ee1-aaa25bca8f92/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 22:47:43,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 22:47:43,903 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-28 22:47:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 22:47:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 22:47:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-10-28 22:47:43,904 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-10-28 22:47:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-10-28 22:47:43,905 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-10-28 22:47:43,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 22:47:43,905 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-28 22:47:43,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 22:47:43,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 22:47:43,907 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-28 22:47:45,633 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 22:47:45,634 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-28 22:47:45,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:47:45 BoogieIcfgContainer [2021-10-28 22:47:45,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 22:47:45,639 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 22:47:45,640 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 22:47:45,643 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 22:47:45,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 10:47:42" (1/3) ... [2021-10-28 22:47:45,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19e5c94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:47:45, skipping insertion in model container [2021-10-28 22:47:45,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:47:43" (2/3) ... [2021-10-28 22:47:45,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19e5c94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:47:45, skipping insertion in model container [2021-10-28 22:47:45,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:47:45" (3/3) ... [2021-10-28 22:47:45,646 INFO L111 eAbstractionObserver]: Analyzing ICFG rfi004.i [2021-10-28 22:47:45,652 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-28 22:47:45,652 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 22:47:45,652 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-28 22:47:45,652 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-28 22:47:45,683 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,683 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,683 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,684 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,684 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,684 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,684 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,684 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,684 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,685 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,685 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,685 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,685 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,685 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,685 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,686 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,686 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,686 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,686 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,686 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,686 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,686 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,687 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,687 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,687 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,687 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,687 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,687 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,687 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,688 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,688 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,688 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,688 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,688 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,688 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,688 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,689 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,689 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,689 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,689 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,689 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,689 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,689 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,690 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,690 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,690 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,692 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,692 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,692 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,692 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,692 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,692 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,693 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,693 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,693 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,693 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,693 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,693 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,693 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,694 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,694 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,694 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,694 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,694 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,694 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,694 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,695 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,695 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,695 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,695 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,695 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,695 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,695 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,696 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,696 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,696 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,696 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,696 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,696 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,696 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,697 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,697 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,697 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,697 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,699 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,699 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,699 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,700 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,700 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,700 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,700 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,700 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,701 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,701 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,701 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,701 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,701 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,701 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,702 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,702 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,702 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,702 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,702 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,702 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,703 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,703 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,703 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,703 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,703 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,704 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,704 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,704 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,704 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,704 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,705 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,705 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,705 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,705 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,706 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,706 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,706 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,706 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,709 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,709 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,710 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,710 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,710 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,710 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,710 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,710 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,711 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,711 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,711 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,711 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,711 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,711 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,712 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,712 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,712 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,712 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,712 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,712 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,713 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,713 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,713 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,713 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,713 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,714 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,714 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,716 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,716 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,716 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,716 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,717 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,717 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,717 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,717 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,717 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,717 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,718 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,718 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:47:45,720 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-28 22:47:45,769 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 22:47:45,775 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 22:47:45,776 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-28 22:47:45,788 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 95 places, 90 transitions, 190 flow [2021-10-28 22:47:45,827 INFO L129 PetriNetUnfolder]: 2/88 cut-off events. [2021-10-28 22:47:45,827 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 22:47:45,831 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 88 events. 2/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 44 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2021-10-28 22:47:45,831 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 90 transitions, 190 flow [2021-10-28 22:47:45,836 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 88 transitions, 182 flow [2021-10-28 22:47:45,850 INFO L129 PetriNetUnfolder]: 0/54 cut-off events. [2021-10-28 22:47:45,850 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 22:47:45,851 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:47:45,851 INFO L254 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:47:45,852 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-10-28 22:47:45,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:47:45,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1985383779, now seen corresponding path program 1 times [2021-10-28 22:47:45,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:47:45,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282315498] [2021-10-28 22:47:45,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:47:45,868 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:47:46,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:47:46,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:47:46,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:47:46,228 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282315498] [2021-10-28 22:47:46,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282315498] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:47:46,230 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:47:46,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 22:47:46,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224864453] [2021-10-28 22:47:46,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:47:46,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:47:46,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:47:46,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:47:46,289 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 90 [2021-10-28 22:47:46,295 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 88 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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) [2021-10-28 22:47:46,295 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:47:46,295 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 90 [2021-10-28 22:47:46,297 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:47:46,420 INFO L129 PetriNetUnfolder]: 9/121 cut-off events. [2021-10-28 22:47:46,421 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 22:47:46,423 INFO L84 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 121 events. 9/121 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 223 event pairs, 1 based on Foata normal form. 7/122 useless extension candidates. Maximal degree in co-relation 104. Up to 17 conditions per place. [2021-10-28 22:47:46,426 INFO L132 encePairwiseOnDemand]: 85/90 looper letters, 5 selfloop transitions, 2 changer transitions 0/86 dead transitions. [2021-10-28 22:47:46,426 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 86 transitions, 192 flow [2021-10-28 22:47:46,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:47:46,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-28 22:47:46,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 255 transitions. [2021-10-28 22:47:46,448 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9444444444444444 [2021-10-28 22:47:46,449 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 255 transitions. [2021-10-28 22:47:46,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 255 transitions. [2021-10-28 22:47:46,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:47:46,456 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 255 transitions. [2021-10-28 22:47:46,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 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) [2021-10-28 22:47:46,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 90.0) internal successors, (360), 4 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:47:46,478 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 90.0) internal successors, (360), 4 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:47:46,480 INFO L186 Difference]: Start difference. First operand has 93 places, 88 transitions, 182 flow. Second operand 3 states and 255 transitions. [2021-10-28 22:47:46,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 86 transitions, 192 flow [2021-10-28 22:47:46,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 86 transitions, 190 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-28 22:47:46,501 INFO L242 Difference]: Finished difference. Result has 91 places, 84 transitions, 176 flow [2021-10-28 22:47:46,503 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=91, PETRI_TRANSITIONS=84} [2021-10-28 22:47:46,504 INFO L334 CegarLoopForPetriNet]: 93 programPoint places, -2 predicate places. [2021-10-28 22:47:46,505 INFO L470 AbstractCegarLoop]: Abstraction has has 91 places, 84 transitions, 176 flow [2021-10-28 22:47:46,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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) [2021-10-28 22:47:46,507 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:47:46,507 INFO L254 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:47:46,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 22:47:46,516 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-10-28 22:47:46,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:47:46,517 INFO L85 PathProgramCache]: Analyzing trace with hash -2124066165, now seen corresponding path program 1 times [2021-10-28 22:47:46,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:47:46,518 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749276346] [2021-10-28 22:47:46,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:47:46,519 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:47:46,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:47:46,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:47:46,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:47:46,960 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749276346] [2021-10-28 22:47:46,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749276346] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:47:46,960 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:47:46,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 22:47:46,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000657898] [2021-10-28 22:47:46,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 22:47:46,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:47:46,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 22:47:46,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-28 22:47:46,965 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 90 [2021-10-28 22:47:46,966 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 84 transitions, 176 flow. Second operand has 7 states, 7 states have (on average 75.28571428571429) internal successors, (527), 7 states have internal predecessors, (527), 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) [2021-10-28 22:47:46,967 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:47:46,967 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 90 [2021-10-28 22:47:46,967 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:47:47,251 INFO L129 PetriNetUnfolder]: 57/293 cut-off events. [2021-10-28 22:47:47,251 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 22:47:47,253 INFO L84 FinitePrefix]: Finished finitePrefix Result has 422 conditions, 293 events. 57/293 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1300 event pairs, 12 based on Foata normal form. 0/283 useless extension candidates. Maximal degree in co-relation 373. Up to 56 conditions per place. [2021-10-28 22:47:47,255 INFO L132 encePairwiseOnDemand]: 84/90 looper letters, 11 selfloop transitions, 2 changer transitions 29/106 dead transitions. [2021-10-28 22:47:47,275 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 106 transitions, 290 flow [2021-10-28 22:47:47,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 22:47:47,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-28 22:47:47,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 703 transitions. [2021-10-28 22:47:47,282 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8679012345679012 [2021-10-28 22:47:47,283 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 703 transitions. [2021-10-28 22:47:47,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 703 transitions. [2021-10-28 22:47:47,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:47:47,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 703 transitions. [2021-10-28 22:47:47,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 78.11111111111111) internal successors, (703), 9 states have internal predecessors, (703), 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) [2021-10-28 22:47:47,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 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) [2021-10-28 22:47:47,292 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 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) [2021-10-28 22:47:47,292 INFO L186 Difference]: Start difference. First operand has 91 places, 84 transitions, 176 flow. Second operand 9 states and 703 transitions. [2021-10-28 22:47:47,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 106 transitions, 290 flow [2021-10-28 22:47:47,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 106 transitions, 286 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-28 22:47:47,297 INFO L242 Difference]: Finished difference. Result has 104 places, 76 transitions, 176 flow [2021-10-28 22:47:47,297 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=176, PETRI_PLACES=104, PETRI_TRANSITIONS=76} [2021-10-28 22:47:47,298 INFO L334 CegarLoopForPetriNet]: 93 programPoint places, 11 predicate places. [2021-10-28 22:47:47,298 INFO L470 AbstractCegarLoop]: Abstraction has has 104 places, 76 transitions, 176 flow [2021-10-28 22:47:47,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 75.28571428571429) internal successors, (527), 7 states have internal predecessors, (527), 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) [2021-10-28 22:47:47,299 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:47:47,299 INFO L254 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:47:47,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 22:47:47,300 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-10-28 22:47:47,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:47:47,300 INFO L85 PathProgramCache]: Analyzing trace with hash 569287662, now seen corresponding path program 1 times [2021-10-28 22:47:47,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:47:47,301 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219479633] [2021-10-28 22:47:47,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:47:47,301 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:47:47,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:47:47,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:47:47,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:47:47,446 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219479633] [2021-10-28 22:47:47,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219479633] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:47:47,447 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:47:47,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 22:47:47,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261228156] [2021-10-28 22:47:47,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 22:47:47,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:47:47,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 22:47:47,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 22:47:47,451 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 90 [2021-10-28 22:47:47,452 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 76 transitions, 176 flow. Second operand has 6 states, 6 states have (on average 78.16666666666667) internal successors, (469), 6 states have internal predecessors, (469), 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) [2021-10-28 22:47:47,452 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:47:47,452 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 90 [2021-10-28 22:47:47,452 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:47:47,592 INFO L129 PetriNetUnfolder]: 30/169 cut-off events. [2021-10-28 22:47:47,593 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2021-10-28 22:47:47,594 INFO L84 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 169 events. 30/169 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 566 event pairs, 0 based on Foata normal form. 0/164 useless extension candidates. Maximal degree in co-relation 258. Up to 26 conditions per place. [2021-10-28 22:47:47,595 INFO L132 encePairwiseOnDemand]: 81/90 looper letters, 8 selfloop transitions, 5 changer transitions 20/99 dead transitions. [2021-10-28 22:47:47,595 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 99 transitions, 288 flow [2021-10-28 22:47:47,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 22:47:47,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-10-28 22:47:47,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 805 transitions. [2021-10-28 22:47:47,600 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8944444444444445 [2021-10-28 22:47:47,600 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 805 transitions. [2021-10-28 22:47:47,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 805 transitions. [2021-10-28 22:47:47,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:47:47,601 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 805 transitions. [2021-10-28 22:47:47,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 80.5) internal successors, (805), 10 states have internal predecessors, (805), 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) [2021-10-28 22:47:47,608 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 90.0) internal successors, (990), 11 states have internal predecessors, (990), 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) [2021-10-28 22:47:47,609 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 90.0) internal successors, (990), 11 states have internal predecessors, (990), 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) [2021-10-28 22:47:47,609 INFO L186 Difference]: Start difference. First operand has 104 places, 76 transitions, 176 flow. Second operand 10 states and 805 transitions. [2021-10-28 22:47:47,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 99 transitions, 288 flow [2021-10-28 22:47:47,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 99 transitions, 272 flow, removed 6 selfloop flow, removed 8 redundant places. [2021-10-28 22:47:47,615 INFO L242 Difference]: Finished difference. Result has 97 places, 77 transitions, 202 flow [2021-10-28 22:47:47,615 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=202, PETRI_PLACES=97, PETRI_TRANSITIONS=77} [2021-10-28 22:47:47,616 INFO L334 CegarLoopForPetriNet]: 93 programPoint places, 4 predicate places. [2021-10-28 22:47:47,616 INFO L470 AbstractCegarLoop]: Abstraction has has 97 places, 77 transitions, 202 flow [2021-10-28 22:47:47,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 78.16666666666667) internal successors, (469), 6 states have internal predecessors, (469), 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) [2021-10-28 22:47:47,617 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:47:47,617 INFO L254 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:47:47,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 22:47:47,618 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-10-28 22:47:47,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:47:47,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1093307751, now seen corresponding path program 1 times [2021-10-28 22:47:47,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:47:47,619 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950335110] [2021-10-28 22:47:47,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:47:47,620 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:47:47,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:47:47,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:47:47,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:47:47,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950335110] [2021-10-28 22:47:47,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950335110] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:47:47,787 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:47:47,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 22:47:47,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627912267] [2021-10-28 22:47:47,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 22:47:47,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:47:47,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 22:47:47,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-28 22:47:47,791 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 90 [2021-10-28 22:47:47,792 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 77 transitions, 202 flow. Second operand has 7 states, 7 states have (on average 78.14285714285714) internal successors, (547), 7 states have internal predecessors, (547), 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) [2021-10-28 22:47:47,792 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:47:47,792 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 90 [2021-10-28 22:47:47,792 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:47:47,984 INFO L129 PetriNetUnfolder]: 8/100 cut-off events. [2021-10-28 22:47:47,985 INFO L130 PetriNetUnfolder]: For 66/69 co-relation queries the response was YES. [2021-10-28 22:47:47,986 INFO L84 FinitePrefix]: Finished finitePrefix Result has 206 conditions, 100 events. 8/100 cut-off events. For 66/69 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 116 event pairs, 0 based on Foata normal form. 6/106 useless extension candidates. Maximal degree in co-relation 184. Up to 17 conditions per place. [2021-10-28 22:47:47,987 INFO L132 encePairwiseOnDemand]: 82/90 looper letters, 4 selfloop transitions, 7 changer transitions 11/88 dead transitions. [2021-10-28 22:47:47,987 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 88 transitions, 311 flow [2021-10-28 22:47:47,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 22:47:47,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-10-28 22:47:47,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 794 transitions. [2021-10-28 22:47:47,992 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8822222222222222 [2021-10-28 22:47:47,992 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 794 transitions. [2021-10-28 22:47:47,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 794 transitions. [2021-10-28 22:47:47,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:47:47,993 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 794 transitions. [2021-10-28 22:47:47,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 79.4) internal successors, (794), 10 states have internal predecessors, (794), 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) [2021-10-28 22:47:48,000 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 90.0) internal successors, (990), 11 states have internal predecessors, (990), 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) [2021-10-28 22:47:48,001 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 90.0) internal successors, (990), 11 states have internal predecessors, (990), 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) [2021-10-28 22:47:48,001 INFO L186 Difference]: Start difference. First operand has 97 places, 77 transitions, 202 flow. Second operand 10 states and 794 transitions. [2021-10-28 22:47:48,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 88 transitions, 311 flow [2021-10-28 22:47:48,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 88 transitions, 272 flow, removed 14 selfloop flow, removed 6 redundant places. [2021-10-28 22:47:48,011 INFO L242 Difference]: Finished difference. Result has 100 places, 77 transitions, 214 flow [2021-10-28 22:47:48,012 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=214, PETRI_PLACES=100, PETRI_TRANSITIONS=77} [2021-10-28 22:47:48,012 INFO L334 CegarLoopForPetriNet]: 93 programPoint places, 7 predicate places. [2021-10-28 22:47:48,012 INFO L470 AbstractCegarLoop]: Abstraction has has 100 places, 77 transitions, 214 flow [2021-10-28 22:47:48,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 78.14285714285714) internal successors, (547), 7 states have internal predecessors, (547), 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) [2021-10-28 22:47:48,013 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:47:48,014 INFO L254 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:47:48,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 22:47:48,015 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-10-28 22:47:48,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:47:48,015 INFO L85 PathProgramCache]: Analyzing trace with hash -2101378281, now seen corresponding path program 1 times [2021-10-28 22:47:48,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:47:48,016 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227380892] [2021-10-28 22:47:48,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:47:48,016 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:47:48,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:47:48,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:47:48,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:47:48,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227380892] [2021-10-28 22:47:48,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227380892] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:47:48,407 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:47:48,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 22:47:48,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287995331] [2021-10-28 22:47:48,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 22:47:48,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:47:48,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 22:47:48,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-10-28 22:47:48,411 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 90 [2021-10-28 22:47:48,412 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 77 transitions, 214 flow. Second operand has 8 states, 8 states have (on average 68.375) internal successors, (547), 8 states have internal predecessors, (547), 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) [2021-10-28 22:47:48,412 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:47:48,412 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 90 [2021-10-28 22:47:48,412 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:47:48,633 INFO L129 PetriNetUnfolder]: 6/133 cut-off events. [2021-10-28 22:47:48,633 INFO L130 PetriNetUnfolder]: For 76/76 co-relation queries the response was YES. [2021-10-28 22:47:48,634 INFO L84 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 133 events. 6/133 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 257 event pairs, 0 based on Foata normal form. 1/133 useless extension candidates. Maximal degree in co-relation 220. Up to 22 conditions per place. [2021-10-28 22:47:48,635 INFO L132 encePairwiseOnDemand]: 80/90 looper letters, 18 selfloop transitions, 6 changer transitions 6/88 dead transitions. [2021-10-28 22:47:48,635 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 88 transitions, 296 flow [2021-10-28 22:47:48,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 22:47:48,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-28 22:47:48,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 625 transitions. [2021-10-28 22:47:48,638 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7716049382716049 [2021-10-28 22:47:48,638 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 625 transitions. [2021-10-28 22:47:48,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 625 transitions. [2021-10-28 22:47:48,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:47:48,639 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 625 transitions. [2021-10-28 22:47:48,641 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 69.44444444444444) internal successors, (625), 9 states have internal predecessors, (625), 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) [2021-10-28 22:47:48,643 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 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) [2021-10-28 22:47:48,644 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 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) [2021-10-28 22:47:48,644 INFO L186 Difference]: Start difference. First operand has 100 places, 77 transitions, 214 flow. Second operand 9 states and 625 transitions. [2021-10-28 22:47:48,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 88 transitions, 296 flow [2021-10-28 22:47:48,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 88 transitions, 250 flow, removed 13 selfloop flow, removed 13 redundant places. [2021-10-28 22:47:48,649 INFO L242 Difference]: Finished difference. Result has 98 places, 80 transitions, 211 flow [2021-10-28 22:47:48,649 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=211, PETRI_PLACES=98, PETRI_TRANSITIONS=80} [2021-10-28 22:47:48,649 INFO L334 CegarLoopForPetriNet]: 93 programPoint places, 5 predicate places. [2021-10-28 22:47:48,650 INFO L470 AbstractCegarLoop]: Abstraction has has 98 places, 80 transitions, 211 flow [2021-10-28 22:47:48,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 68.375) internal successors, (547), 8 states have internal predecessors, (547), 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) [2021-10-28 22:47:48,650 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:47:48,650 INFO L254 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:47:48,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 22:47:48,651 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-10-28 22:47:48,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:47:48,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1250444773, now seen corresponding path program 2 times [2021-10-28 22:47:48,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:47:48,652 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842557360] [2021-10-28 22:47:48,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:47:48,652 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:47:48,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:47:48,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:47:48,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:47:48,803 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842557360] [2021-10-28 22:47:48,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842557360] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:47:48,803 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:47:48,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 22:47:48,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789531761] [2021-10-28 22:47:48,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 22:47:48,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:47:48,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 22:47:48,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-28 22:47:48,806 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 90 [2021-10-28 22:47:48,807 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 80 transitions, 211 flow. Second operand has 7 states, 7 states have (on average 74.0) internal successors, (518), 7 states have internal predecessors, (518), 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) [2021-10-28 22:47:48,807 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:47:48,807 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 90 [2021-10-28 22:47:48,807 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:47:48,934 INFO L129 PetriNetUnfolder]: 7/142 cut-off events. [2021-10-28 22:47:48,935 INFO L130 PetriNetUnfolder]: For 13/15 co-relation queries the response was YES. [2021-10-28 22:47:48,935 INFO L84 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 142 events. 7/142 cut-off events. For 13/15 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 316 event pairs, 0 based on Foata normal form. 3/144 useless extension candidates. Maximal degree in co-relation 224. Up to 16 conditions per place. [2021-10-28 22:47:48,936 INFO L132 encePairwiseOnDemand]: 81/90 looper letters, 12 selfloop transitions, 5 changer transitions 7/87 dead transitions. [2021-10-28 22:47:48,936 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 87 transitions, 278 flow [2021-10-28 22:47:48,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 22:47:48,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-10-28 22:47:48,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 598 transitions. [2021-10-28 22:47:48,939 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8305555555555556 [2021-10-28 22:47:48,939 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 598 transitions. [2021-10-28 22:47:48,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 598 transitions. [2021-10-28 22:47:48,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:47:48,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 598 transitions. [2021-10-28 22:47:48,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 74.75) internal successors, (598), 8 states have internal predecessors, (598), 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) [2021-10-28 22:47:48,943 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 90.0) internal successors, (810), 9 states have internal predecessors, (810), 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) [2021-10-28 22:47:48,944 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 90.0) internal successors, (810), 9 states have internal predecessors, (810), 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) [2021-10-28 22:47:48,944 INFO L186 Difference]: Start difference. First operand has 98 places, 80 transitions, 211 flow. Second operand 8 states and 598 transitions. [2021-10-28 22:47:48,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 87 transitions, 278 flow [2021-10-28 22:47:48,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 87 transitions, 252 flow, removed 8 selfloop flow, removed 7 redundant places. [2021-10-28 22:47:48,948 INFO L242 Difference]: Finished difference. Result has 99 places, 79 transitions, 209 flow [2021-10-28 22:47:48,948 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=209, PETRI_PLACES=99, PETRI_TRANSITIONS=79} [2021-10-28 22:47:48,949 INFO L334 CegarLoopForPetriNet]: 93 programPoint places, 6 predicate places. [2021-10-28 22:47:48,949 INFO L470 AbstractCegarLoop]: Abstraction has has 99 places, 79 transitions, 209 flow [2021-10-28 22:47:48,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 74.0) internal successors, (518), 7 states have internal predecessors, (518), 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) [2021-10-28 22:47:48,949 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:47:48,950 INFO L254 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:47:48,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 22:47:48,950 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-10-28 22:47:48,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:47:48,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1400822473, now seen corresponding path program 3 times [2021-10-28 22:47:48,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:47:48,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418202683] [2021-10-28 22:47:48,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:47:48,951 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:47:49,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:47:49,006 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:47:49,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:47:49,103 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:47:49,104 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 22:47:49,105 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 22:47:49,107 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 22:47:49,107 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-28 22:47:49,107 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-28 22:47:49,108 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 22:47:49,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-28 22:47:49,111 INFO L731 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1] [2021-10-28 22:47:49,117 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-28 22:47:49,117 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 22:47:49,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 10:47:49 BasicIcfg [2021-10-28 22:47:49,297 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 22:47:49,297 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 22:47:49,298 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 22:47:49,298 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 22:47:49,298 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:47:45" (3/4) ... [2021-10-28 22:47:49,300 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-28 22:47:49,481 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ba91f4-ccbf-43bd-9ee1-aaa25bca8f92/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 22:47:49,481 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 22:47:49,483 INFO L168 Benchmark]: Toolchain (without parser) took 6490.22 ms. Allocated memory was 102.8 MB in the beginning and 174.1 MB in the end (delta: 71.3 MB). Free memory was 59.2 MB in the beginning and 84.1 MB in the end (delta: -24.9 MB). Peak memory consumption was 47.4 MB. Max. memory is 16.1 GB. [2021-10-28 22:47:49,484 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 102.8 MB. Free memory was 77.5 MB in the beginning and 77.5 MB in the end (delta: 51.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:47:49,485 INFO L168 Benchmark]: CACSL2BoogieTranslator took 698.94 ms. Allocated memory is still 102.8 MB. Free memory was 81.7 MB in the beginning and 65.8 MB in the end (delta: 15.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-28 22:47:49,485 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.70 ms. Allocated memory is still 102.8 MB. Free memory was 65.8 MB in the beginning and 63.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:47:49,486 INFO L168 Benchmark]: Boogie Preprocessor took 47.08 ms. Allocated memory is still 102.8 MB. Free memory was 63.2 MB in the beginning and 61.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:47:49,486 INFO L168 Benchmark]: RCFGBuilder took 1816.65 ms. Allocated memory was 102.8 MB in the beginning and 127.9 MB in the end (delta: 25.2 MB). Free memory was 61.3 MB in the beginning and 86.5 MB in the end (delta: -25.3 MB). Peak memory consumption was 37.9 MB. Max. memory is 16.1 GB. [2021-10-28 22:47:49,487 INFO L168 Benchmark]: TraceAbstraction took 3657.72 ms. Allocated memory was 127.9 MB in the beginning and 174.1 MB in the end (delta: 46.1 MB). Free memory was 85.9 MB in the beginning and 108.2 MB in the end (delta: -22.3 MB). Peak memory consumption was 25.9 MB. Max. memory is 16.1 GB. [2021-10-28 22:47:49,487 INFO L168 Benchmark]: Witness Printer took 184.05 ms. Allocated memory is still 174.1 MB. Free memory was 108.2 MB in the beginning and 84.1 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:47:49,489 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 102.8 MB. Free memory was 77.5 MB in the beginning and 77.5 MB in the end (delta: 51.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 698.94 ms. Allocated memory is still 102.8 MB. Free memory was 81.7 MB in the beginning and 65.8 MB in the end (delta: 15.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 66.70 ms. Allocated memory is still 102.8 MB. Free memory was 65.8 MB in the beginning and 63.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.08 ms. Allocated memory is still 102.8 MB. Free memory was 63.2 MB in the beginning and 61.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1816.65 ms. Allocated memory was 102.8 MB in the beginning and 127.9 MB in the end (delta: 25.2 MB). Free memory was 61.3 MB in the beginning and 86.5 MB in the end (delta: -25.3 MB). Peak memory consumption was 37.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3657.72 ms. Allocated memory was 127.9 MB in the beginning and 174.1 MB in the end (delta: 46.1 MB). Free memory was 85.9 MB in the beginning and 108.2 MB in the end (delta: -22.3 MB). Peak memory consumption was 25.9 MB. Max. memory is 16.1 GB. * Witness Printer took 184.05 ms. Allocated memory is still 174.1 MB. Free memory was 108.2 MB in the beginning and 84.1 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; VAL [__unbuffered_cnt=0] [L711] 0 int __unbuffered_p0_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0] [L713] 0 int __unbuffered_p1_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0] [L715] 0 int __unbuffered_p1_EBX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0] [L716] 0 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0] [L717] 0 _Bool main$tmp_guard1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0] [L719] 0 int x = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L721] 0 int y = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0] [L722] 0 _Bool y$flush_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0] [L723] 0 int y$mem_tmp; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0] [L724] 0 _Bool y$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0] [L725] 0 _Bool y$r_buff0_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0] [L726] 0 _Bool y$r_buff0_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0] [L727] 0 _Bool y$r_buff1_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0] [L728] 0 _Bool y$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0] [L729] 0 _Bool y$r_buff1_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0] [L730] 0 _Bool y$read_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0] [L731] 0 int *y$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}] [L732] 0 int y$w_buff0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0] [L733] 0 _Bool y$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0] [L734] 0 int y$w_buff1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0] [L735] 0 _Bool y$w_buff1_used; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L737] 0 int z = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L738] 0 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L739] 0 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L815] 0 pthread_t t1649; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L816] FCALL, FORK 0 pthread_create(&t1649, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L817] 0 pthread_t t1650; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L818] FCALL, FORK 0 pthread_create(&t1650, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L773] 2 y$w_buff1 = y$w_buff0 [L774] 2 y$w_buff0 = 1 [L775] 2 y$w_buff1_used = y$w_buff0_used [L776] 2 y$w_buff0_used = (_Bool)1 [L19] COND FALSE 2 !(!expression) [L778] 2 y$r_buff1_thd0 = y$r_buff0_thd0 [L779] 2 y$r_buff1_thd1 = y$r_buff0_thd1 [L780] 2 y$r_buff1_thd2 = y$r_buff0_thd2 [L781] 2 y$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L784] 2 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L787] 2 __unbuffered_p1_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L790] 2 __unbuffered_p1_EBX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L743] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L748] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L749] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L750] 1 y$flush_delayed = weak$$choice2 [L751] 1 y$mem_tmp = y [L752] EXPR 1 !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff1) [L752] 1 y = !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff1) [L753] EXPR 1 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff0)) [L753] 1 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff0)) [L754] EXPR 1 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff1 : y$w_buff1)) [L754] 1 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff1 : y$w_buff1)) [L755] EXPR 1 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used)) [L755] 1 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used)) [L756] EXPR 1 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L756] 1 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L757] EXPR 1 weak$$choice2 ? y$r_buff0_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff0_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1)) [L757] 1 y$r_buff0_thd1 = weak$$choice2 ? y$r_buff0_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff0_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1)) [L758] EXPR 1 weak$$choice2 ? y$r_buff1_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff1_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L758] 1 y$r_buff1_thd1 = weak$$choice2 ? y$r_buff1_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff1_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L759] 1 __unbuffered_p0_EAX = y [L760] EXPR 1 y$flush_delayed ? y$mem_tmp : y [L760] 1 y = y$flush_delayed ? y$mem_tmp : y [L761] 1 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L766] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L793] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L793] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L794] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L794] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L795] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L795] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L796] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L796] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L797] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L797] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L800] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L820] 0 main$tmp_guard0 = __unbuffered_cnt == 2 VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L4] COND FALSE 0 !(!cond) VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L824] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L824] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L824] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L824] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L825] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L825] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L826] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L826] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L827] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L827] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L828] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L828] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L831] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L19] COND TRUE 0 !expression VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L19] 0 reach_error() VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 818]: 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: 816]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 109 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.3s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 61 SDtfs, 97 SDslu, 228 SDs, 0 SdLazy, 224 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=214occurred in iteration=4, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 452 NumberOfCodeBlocks, 452 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 375 ConstructedInterpolants, 0 QuantifiedInterpolants, 1674 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-28 22:47:49,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ba91f4-ccbf-43bd-9ee1-aaa25bca8f92/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...