./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe011_power.opt_pso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888807dd-215d-47a3-8b16-3c8a33d9e3ea/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888807dd-215d-47a3-8b16-3c8a33d9e3ea/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888807dd-215d-47a3-8b16-3c8a33d9e3ea/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888807dd-215d-47a3-8b16-3c8a33d9e3ea/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe011_power.opt_pso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888807dd-215d-47a3-8b16-3c8a33d9e3ea/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888807dd-215d-47a3-8b16-3c8a33d9e3ea/bin/uautomizer-j4sWxH34Be --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 bdec055c4bfc04b6b0c3fc918f7b96def91dcb331178222835136af29a7feef5 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-e943c26 [2021-10-21 20:04:44,976 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:04:44,980 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:04:45,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:04:45,035 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:04:45,037 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:04:45,039 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:04:45,042 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:04:45,049 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:04:45,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:04:45,058 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:04:45,060 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:04:45,063 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:04:45,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:04:45,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:04:45,073 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:04:45,075 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:04:45,076 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:04:45,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:04:45,090 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:04:45,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:04:45,095 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:04:45,099 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:04:45,100 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:04:45,115 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:04:45,115 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:04:45,116 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:04:45,118 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:04:45,119 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:04:45,121 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:04:45,121 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:04:45,123 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:04:45,125 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:04:45,127 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:04:45,129 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:04:45,129 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:04:45,130 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:04:45,131 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:04:45,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:04:45,132 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:04:45,133 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:04:45,134 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888807dd-215d-47a3-8b16-3c8a33d9e3ea/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 20:04:45,189 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:04:45,189 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:04:45,190 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:04:45,191 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:04:45,200 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:04:45,201 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:04:45,201 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:04:45,202 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:04:45,202 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:04:45,202 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:04:45,203 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:04:45,204 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:04:45,204 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 20:04:45,204 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 20:04:45,205 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 20:04:45,205 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:04:45,205 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:04:45,205 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:04:45,206 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 20:04:45,206 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:04:45,206 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:04:45,207 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 20:04:45,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:04:45,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:04:45,207 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 20:04:45,208 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 20:04:45,208 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:04:45,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 20:04:45,209 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 20:04:45,211 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 20:04:45,211 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 20:04:45,211 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:04:45,212 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_888807dd-215d-47a3-8b16-3c8a33d9e3ea/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888807dd-215d-47a3-8b16-3c8a33d9e3ea/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdec055c4bfc04b6b0c3fc918f7b96def91dcb331178222835136af29a7feef5 [2021-10-21 20:04:45,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:04:45,611 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:04:45,615 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:04:45,616 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:04:45,617 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:04:45,619 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888807dd-215d-47a3-8b16-3c8a33d9e3ea/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/pthread-wmm/safe011_power.opt_pso.opt.i [2021-10-21 20:04:45,710 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888807dd-215d-47a3-8b16-3c8a33d9e3ea/bin/uautomizer-j4sWxH34Be/data/7487144ab/ee97f53904304decb03cbb05a5c17947/FLAG3f7e4be4b [2021-10-21 20:04:46,573 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:04:46,574 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888807dd-215d-47a3-8b16-3c8a33d9e3ea/sv-benchmarks/c/pthread-wmm/safe011_power.opt_pso.opt.i [2021-10-21 20:04:46,609 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888807dd-215d-47a3-8b16-3c8a33d9e3ea/bin/uautomizer-j4sWxH34Be/data/7487144ab/ee97f53904304decb03cbb05a5c17947/FLAG3f7e4be4b [2021-10-21 20:04:46,787 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888807dd-215d-47a3-8b16-3c8a33d9e3ea/bin/uautomizer-j4sWxH34Be/data/7487144ab/ee97f53904304decb03cbb05a5c17947 [2021-10-21 20:04:46,790 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:04:46,792 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:04:46,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:04:46,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:04:46,800 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:04:46,801 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:04:46" (1/1) ... [2021-10-21 20:04:46,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@711fd60f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:46, skipping insertion in model container [2021-10-21 20:04:46,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:04:46" (1/1) ... [2021-10-21 20:04:46,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:04:46,892 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:04:47,171 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_888807dd-215d-47a3-8b16-3c8a33d9e3ea/sv-benchmarks/c/pthread-wmm/safe011_power.opt_pso.opt.i[959,972] [2021-10-21 20:04:47,418 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:04:47,429 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:04:47,455 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_888807dd-215d-47a3-8b16-3c8a33d9e3ea/sv-benchmarks/c/pthread-wmm/safe011_power.opt_pso.opt.i[959,972] [2021-10-21 20:04:47,574 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:04:47,661 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:04:47,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:47 WrapperNode [2021-10-21 20:04:47,662 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:04:47,664 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:04:47,664 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:04:47,665 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:04:47,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:47" (1/1) ... [2021-10-21 20:04:47,727 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:47" (1/1) ... [2021-10-21 20:04:47,791 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:04:47,795 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:04:47,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:04:47,795 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:04:47,807 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:47" (1/1) ... [2021-10-21 20:04:47,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:47" (1/1) ... [2021-10-21 20:04:47,825 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:47" (1/1) ... [2021-10-21 20:04:47,840 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:47" (1/1) ... [2021-10-21 20:04:47,853 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:47" (1/1) ... [2021-10-21 20:04:47,858 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:47" (1/1) ... [2021-10-21 20:04:47,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:47" (1/1) ... [2021-10-21 20:04:47,870 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:04:47,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:04:47,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:04:47,871 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:04:47,873 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:47" (1/1) ... [2021-10-21 20:04:47,882 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:04:47,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888807dd-215d-47a3-8b16-3c8a33d9e3ea/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:04:47,936 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888807dd-215d-47a3-8b16-3c8a33d9e3ea/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 20:04:47,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888807dd-215d-47a3-8b16-3c8a33d9e3ea/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 20:04:47,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-21 20:04:47,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-21 20:04:47,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:04:47,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 20:04:48,000 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-10-21 20:04:48,000 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-10-21 20:04:48,000 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-10-21 20:04:48,000 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-10-21 20:04:48,001 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-10-21 20:04:48,001 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-10-21 20:04:48,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 20:04:48,002 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-21 20:04:48,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:04:48,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:04:48,005 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-21 20:04:50,597 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:04:50,597 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-21 20:04:50,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:04:50 BoogieIcfgContainer [2021-10-21 20:04:50,602 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:04:50,605 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 20:04:50,605 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 20:04:50,609 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 20:04:50,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 08:04:46" (1/3) ... [2021-10-21 20:04:50,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@176174b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:04:50, skipping insertion in model container [2021-10-21 20:04:50,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:47" (2/3) ... [2021-10-21 20:04:50,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@176174b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:04:50, skipping insertion in model container [2021-10-21 20:04:50,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:04:50" (3/3) ... [2021-10-21 20:04:50,614 INFO L111 eAbstractionObserver]: Analyzing ICFG safe011_power.opt_pso.opt.i [2021-10-21 20:04:50,623 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-21 20:04:50,624 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 20:04:50,624 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-21 20:04:50,624 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-21 20:04:50,677 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,678 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,678 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,678 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,679 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,679 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,679 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,679 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,680 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,680 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,680 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,681 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,681 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,682 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,682 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,682 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,683 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,684 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,684 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,685 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,685 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,686 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,686 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,687 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,687 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,688 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,689 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,689 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,691 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,691 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,691 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,691 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,692 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,692 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,692 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,693 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,693 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,693 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,694 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,694 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,694 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,694 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,695 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,695 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,695 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,696 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,696 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,696 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,696 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,697 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,698 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,698 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,698 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,698 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,699 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,699 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,700 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,700 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,700 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,700 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,701 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,701 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,701 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,702 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,702 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,702 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,702 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,703 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,703 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,703 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,703 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,704 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,704 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,705 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,705 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,706 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,706 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,706 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,707 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,707 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,707 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,707 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,708 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,709 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,709 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,710 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,719 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,722 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,723 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,725 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,725 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,725 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,726 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,727 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,727 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,728 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,736 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,736 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,737 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,737 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,737 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,738 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,738 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,738 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,738 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,739 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,739 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,739 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,742 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,742 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,742 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,743 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,743 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,743 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,743 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,744 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,744 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,744 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:04:50,746 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-21 20:04:50,830 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 20:04:50,847 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 [2021-10-21 20:04:50,853 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-21 20:04:50,878 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 114 places, 106 transitions, 227 flow [2021-10-21 20:04:50,954 INFO L129 PetriNetUnfolder]: 2/103 cut-off events. [2021-10-21 20:04:50,954 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-21 20:04:50,960 INFO L84 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 103 events. 2/103 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-10-21 20:04:50,960 INFO L82 GeneralOperation]: Start removeDead. Operand has 114 places, 106 transitions, 227 flow [2021-10-21 20:04:50,968 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 111 places, 103 transitions, 215 flow [2021-10-21 20:04:50,995 INFO L129 PetriNetUnfolder]: 0/56 cut-off events. [2021-10-21 20:04:50,995 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-21 20:04:50,996 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 20:04:50,997 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] [2021-10-21 20:04:50,997 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-10-21 20:04:51,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:51,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1756318615, now seen corresponding path program 1 times [2021-10-21 20:04:51,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:51,020 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139506209] [2021-10-21 20:04:51,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:51,022 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:51,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:51,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:04:51,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:51,436 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139506209] [2021-10-21 20:04:51,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139506209] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:51,437 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:51,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 20:04:51,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268216167] [2021-10-21 20:04:51,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:04:51,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:51,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:04:51,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:51,472 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 106 [2021-10-21 20:04:51,476 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 103 transitions, 215 flow. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 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) [2021-10-21 20:04:51,477 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 20:04:51,477 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 106 [2021-10-21 20:04:51,478 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 20:04:51,669 INFO L129 PetriNetUnfolder]: 49/388 cut-off events. [2021-10-21 20:04:51,670 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-21 20:04:51,676 INFO L84 FinitePrefix]: Finished finitePrefix Result has 484 conditions, 388 events. 49/388 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1943 event pairs, 27 based on Foata normal form. 18/382 useless extension candidates. Maximal degree in co-relation 437. Up to 65 conditions per place. [2021-10-21 20:04:51,680 INFO L132 encePairwiseOnDemand]: 101/106 looper letters, 9 selfloop transitions, 2 changer transitions 0/103 dead transitions. [2021-10-21 20:04:51,680 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 103 transitions, 237 flow [2021-10-21 20:04:51,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:04:51,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-21 20:04:51,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 301 transitions. [2021-10-21 20:04:51,702 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9465408805031447 [2021-10-21 20:04:51,703 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 301 transitions. [2021-10-21 20:04:51,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 301 transitions. [2021-10-21 20:04:51,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:04:51,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 301 transitions. [2021-10-21 20:04:51,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 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) [2021-10-21 20:04:51,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 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) [2021-10-21 20:04:51,734 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 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) [2021-10-21 20:04:51,737 INFO L186 Difference]: Start difference. First operand has 111 places, 103 transitions, 215 flow. Second operand 3 states and 301 transitions. [2021-10-21 20:04:51,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 103 transitions, 237 flow [2021-10-21 20:04:51,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 103 transitions, 234 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-10-21 20:04:51,750 INFO L242 Difference]: Finished difference. Result has 108 places, 99 transitions, 208 flow [2021-10-21 20:04:51,753 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=208, PETRI_PLACES=108, PETRI_TRANSITIONS=99} [2021-10-21 20:04:51,755 INFO L334 CegarLoopForPetriNet]: 111 programPoint places, -3 predicate places. [2021-10-21 20:04:51,756 INFO L470 AbstractCegarLoop]: Abstraction has has 108 places, 99 transitions, 208 flow [2021-10-21 20:04:51,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 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) [2021-10-21 20:04:51,757 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 20:04:51,757 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] [2021-10-21 20:04:51,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 20:04:51,759 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-10-21 20:04:51,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:51,760 INFO L82 PathProgramCache]: Analyzing trace with hash 2046366058, now seen corresponding path program 1 times [2021-10-21 20:04:51,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:51,761 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407467878] [2021-10-21 20:04:51,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:51,761 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:51,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:52,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:04:52,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:52,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407467878] [2021-10-21 20:04:52,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407467878] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:52,249 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:52,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-21 20:04:52,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268120259] [2021-10-21 20:04:52,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 20:04:52,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:52,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 20:04:52,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-21 20:04:52,256 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 106 [2021-10-21 20:04:52,257 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 99 transitions, 208 flow. Second operand has 6 states, 6 states have (on average 95.16666666666667) internal successors, (571), 6 states have internal predecessors, (571), 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) [2021-10-21 20:04:52,258 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 20:04:52,258 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 106 [2021-10-21 20:04:52,258 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 20:04:52,456 INFO L129 PetriNetUnfolder]: 4/136 cut-off events. [2021-10-21 20:04:52,456 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-21 20:04:52,458 INFO L84 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 136 events. 4/136 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 179 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 131. Up to 8 conditions per place. [2021-10-21 20:04:52,459 INFO L132 encePairwiseOnDemand]: 100/106 looper letters, 6 selfloop transitions, 2 changer transitions 23/111 dead transitions. [2021-10-21 20:04:52,459 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 111 transitions, 274 flow [2021-10-21 20:04:52,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 20:04:52,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-21 20:04:52,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 869 transitions. [2021-10-21 20:04:52,472 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.910901467505241 [2021-10-21 20:04:52,472 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 869 transitions. [2021-10-21 20:04:52,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 869 transitions. [2021-10-21 20:04:52,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:04:52,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 869 transitions. [2021-10-21 20:04:52,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 96.55555555555556) internal successors, (869), 9 states have internal predecessors, (869), 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) [2021-10-21 20:04:52,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 106.0) internal successors, (1060), 10 states have internal predecessors, (1060), 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) [2021-10-21 20:04:52,485 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 106.0) internal successors, (1060), 10 states have internal predecessors, (1060), 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) [2021-10-21 20:04:52,485 INFO L186 Difference]: Start difference. First operand has 108 places, 99 transitions, 208 flow. Second operand 9 states and 869 transitions. [2021-10-21 20:04:52,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 111 transitions, 274 flow [2021-10-21 20:04:52,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 111 transitions, 270 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-21 20:04:52,491 INFO L242 Difference]: Finished difference. Result has 121 places, 88 transitions, 202 flow [2021-10-21 20:04:52,491 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=202, PETRI_PLACES=121, PETRI_TRANSITIONS=88} [2021-10-21 20:04:52,492 INFO L334 CegarLoopForPetriNet]: 111 programPoint places, 10 predicate places. [2021-10-21 20:04:52,492 INFO L470 AbstractCegarLoop]: Abstraction has has 121 places, 88 transitions, 202 flow [2021-10-21 20:04:52,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 95.16666666666667) internal successors, (571), 6 states have internal predecessors, (571), 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) [2021-10-21 20:04:52,493 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 20:04:52,494 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] [2021-10-21 20:04:52,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 20:04:52,494 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-10-21 20:04:52,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:52,495 INFO L82 PathProgramCache]: Analyzing trace with hash 2146464171, now seen corresponding path program 1 times [2021-10-21 20:04:52,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:52,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655849157] [2021-10-21 20:04:52,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:52,496 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:52,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:52,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:04:52,791 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:52,791 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655849157] [2021-10-21 20:04:52,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655849157] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:52,793 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:52,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-21 20:04:52,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753134228] [2021-10-21 20:04:52,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 20:04:52,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:52,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 20:04:52,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:04:52,804 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 106 [2021-10-21 20:04:52,806 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 88 transitions, 202 flow. Second operand has 7 states, 7 states have (on average 93.28571428571429) internal successors, (653), 7 states have internal predecessors, (653), 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) [2021-10-21 20:04:52,806 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 20:04:52,806 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 106 [2021-10-21 20:04:52,807 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 20:04:53,063 INFO L129 PetriNetUnfolder]: 4/111 cut-off events. [2021-10-21 20:04:53,063 INFO L130 PetriNetUnfolder]: For 17/24 co-relation queries the response was YES. [2021-10-21 20:04:53,064 INFO L84 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 111 events. 4/111 cut-off events. For 17/24 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 145 event pairs, 0 based on Foata normal form. 2/113 useless extension candidates. Maximal degree in co-relation 158. Up to 7 conditions per place. [2021-10-21 20:04:53,064 INFO L132 encePairwiseOnDemand]: 98/106 looper letters, 6 selfloop transitions, 4 changer transitions 12/100 dead transitions. [2021-10-21 20:04:53,065 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 100 transitions, 293 flow [2021-10-21 20:04:53,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-21 20:04:53,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-10-21 20:04:53,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 944 transitions. [2021-10-21 20:04:53,071 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8905660377358491 [2021-10-21 20:04:53,071 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 944 transitions. [2021-10-21 20:04:53,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 944 transitions. [2021-10-21 20:04:53,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:04:53,072 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 944 transitions. [2021-10-21 20:04:53,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 94.4) internal successors, (944), 10 states have internal predecessors, (944), 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) [2021-10-21 20:04:53,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 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) [2021-10-21 20:04:53,082 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 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) [2021-10-21 20:04:53,083 INFO L186 Difference]: Start difference. First operand has 121 places, 88 transitions, 202 flow. Second operand 10 states and 944 transitions. [2021-10-21 20:04:53,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 100 transitions, 293 flow [2021-10-21 20:04:53,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 100 transitions, 259 flow, removed 14 selfloop flow, removed 8 redundant places. [2021-10-21 20:04:53,094 INFO L242 Difference]: Finished difference. Result has 113 places, 88 transitions, 216 flow [2021-10-21 20:04:53,095 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=216, PETRI_PLACES=113, PETRI_TRANSITIONS=88} [2021-10-21 20:04:53,095 INFO L334 CegarLoopForPetriNet]: 111 programPoint places, 2 predicate places. [2021-10-21 20:04:53,095 INFO L470 AbstractCegarLoop]: Abstraction has has 113 places, 88 transitions, 216 flow [2021-10-21 20:04:53,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 93.28571428571429) internal successors, (653), 7 states have internal predecessors, (653), 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) [2021-10-21 20:04:53,098 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 20:04:53,098 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, 1] [2021-10-21 20:04:53,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-21 20:04:53,099 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-10-21 20:04:53,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:53,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1166404600, now seen corresponding path program 1 times [2021-10-21 20:04:53,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:53,100 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60462127] [2021-10-21 20:04:53,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:53,101 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:53,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:53,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:04:53,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:53,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60462127] [2021-10-21 20:04:53,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60462127] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:53,363 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:53,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-21 20:04:53,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606346746] [2021-10-21 20:04:53,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 20:04:53,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:53,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 20:04:53,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-21 20:04:53,366 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 106 [2021-10-21 20:04:53,367 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 88 transitions, 216 flow. Second operand has 6 states, 6 states have (on average 94.16666666666667) internal successors, (565), 6 states have internal predecessors, (565), 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) [2021-10-21 20:04:53,367 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 20:04:53,367 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 106 [2021-10-21 20:04:53,367 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 20:04:53,549 INFO L129 PetriNetUnfolder]: 24/191 cut-off events. [2021-10-21 20:04:53,549 INFO L130 PetriNetUnfolder]: For 66/70 co-relation queries the response was YES. [2021-10-21 20:04:53,551 INFO L84 FinitePrefix]: Finished finitePrefix Result has 323 conditions, 191 events. 24/191 cut-off events. For 66/70 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 577 event pairs, 5 based on Foata normal form. 4/193 useless extension candidates. Maximal degree in co-relation 292. Up to 31 conditions per place. [2021-10-21 20:04:53,552 INFO L132 encePairwiseOnDemand]: 99/106 looper letters, 8 selfloop transitions, 3 changer transitions 19/109 dead transitions. [2021-10-21 20:04:53,552 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 109 transitions, 340 flow [2021-10-21 20:04:53,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 20:04:53,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-21 20:04:53,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 869 transitions. [2021-10-21 20:04:53,557 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.910901467505241 [2021-10-21 20:04:53,557 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 869 transitions. [2021-10-21 20:04:53,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 869 transitions. [2021-10-21 20:04:53,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:04:53,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 869 transitions. [2021-10-21 20:04:53,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 96.55555555555556) internal successors, (869), 9 states have internal predecessors, (869), 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) [2021-10-21 20:04:53,566 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 106.0) internal successors, (1060), 10 states have internal predecessors, (1060), 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) [2021-10-21 20:04:53,566 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 106.0) internal successors, (1060), 10 states have internal predecessors, (1060), 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) [2021-10-21 20:04:53,567 INFO L186 Difference]: Start difference. First operand has 113 places, 88 transitions, 216 flow. Second operand 9 states and 869 transitions. [2021-10-21 20:04:53,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 109 transitions, 340 flow [2021-10-21 20:04:53,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 109 transitions, 294 flow, removed 18 selfloop flow, removed 10 redundant places. [2021-10-21 20:04:53,574 INFO L242 Difference]: Finished difference. Result has 112 places, 90 transitions, 233 flow [2021-10-21 20:04:53,575 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=233, PETRI_PLACES=112, PETRI_TRANSITIONS=90} [2021-10-21 20:04:53,575 INFO L334 CegarLoopForPetriNet]: 111 programPoint places, 1 predicate places. [2021-10-21 20:04:53,575 INFO L470 AbstractCegarLoop]: Abstraction has has 112 places, 90 transitions, 233 flow [2021-10-21 20:04:53,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 94.16666666666667) internal successors, (565), 6 states have internal predecessors, (565), 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) [2021-10-21 20:04:53,576 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 20:04:53,576 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, 1, 1] [2021-10-21 20:04:53,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-21 20:04:53,577 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-10-21 20:04:53,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:53,577 INFO L82 PathProgramCache]: Analyzing trace with hash 904940356, now seen corresponding path program 1 times [2021-10-21 20:04:53,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:53,578 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653768923] [2021-10-21 20:04:53,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:53,578 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:53,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:53,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:04:53,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:53,830 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653768923] [2021-10-21 20:04:53,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653768923] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:53,831 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:53,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-21 20:04:53,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382611406] [2021-10-21 20:04:53,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 20:04:53,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:53,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 20:04:53,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-21 20:04:53,837 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 106 [2021-10-21 20:04:53,838 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 90 transitions, 233 flow. Second operand has 6 states, 6 states have (on average 94.33333333333333) internal successors, (566), 6 states have internal predecessors, (566), 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) [2021-10-21 20:04:53,838 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 20:04:53,838 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 106 [2021-10-21 20:04:53,839 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 20:04:54,045 INFO L129 PetriNetUnfolder]: 7/154 cut-off events. [2021-10-21 20:04:54,045 INFO L130 PetriNetUnfolder]: For 120/138 co-relation queries the response was YES. [2021-10-21 20:04:54,046 INFO L84 FinitePrefix]: Finished finitePrefix Result has 301 conditions, 154 events. 7/154 cut-off events. For 120/138 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 375 event pairs, 0 based on Foata normal form. 3/155 useless extension candidates. Maximal degree in co-relation 266. Up to 18 conditions per place. [2021-10-21 20:04:54,047 INFO L132 encePairwiseOnDemand]: 100/106 looper letters, 12 selfloop transitions, 3 changer transitions 10/104 dead transitions. [2021-10-21 20:04:54,047 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 104 transitions, 367 flow [2021-10-21 20:04:54,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 20:04:54,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-21 20:04:54,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 863 transitions. [2021-10-21 20:04:54,052 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9046121593291404 [2021-10-21 20:04:54,052 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 863 transitions. [2021-10-21 20:04:54,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 863 transitions. [2021-10-21 20:04:54,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:04:54,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 863 transitions. [2021-10-21 20:04:54,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 95.88888888888889) internal successors, (863), 9 states have internal predecessors, (863), 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) [2021-10-21 20:04:54,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 106.0) internal successors, (1060), 10 states have internal predecessors, (1060), 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) [2021-10-21 20:04:54,065 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 106.0) internal successors, (1060), 10 states have internal predecessors, (1060), 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) [2021-10-21 20:04:54,065 INFO L186 Difference]: Start difference. First operand has 112 places, 90 transitions, 233 flow. Second operand 9 states and 863 transitions. [2021-10-21 20:04:54,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 104 transitions, 367 flow [2021-10-21 20:04:54,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 104 transitions, 336 flow, removed 14 selfloop flow, removed 4 redundant places. [2021-10-21 20:04:54,078 INFO L242 Difference]: Finished difference. Result has 117 places, 90 transitions, 245 flow [2021-10-21 20:04:54,078 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=245, PETRI_PLACES=117, PETRI_TRANSITIONS=90} [2021-10-21 20:04:54,079 INFO L334 CegarLoopForPetriNet]: 111 programPoint places, 6 predicate places. [2021-10-21 20:04:54,079 INFO L470 AbstractCegarLoop]: Abstraction has has 117 places, 90 transitions, 245 flow [2021-10-21 20:04:54,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 94.33333333333333) internal successors, (566), 6 states have internal predecessors, (566), 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) [2021-10-21 20:04:54,080 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 20:04:54,080 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, 1, 1, 1] [2021-10-21 20:04:54,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-21 20:04:54,081 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-10-21 20:04:54,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:54,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1316162953, now seen corresponding path program 1 times [2021-10-21 20:04:54,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:54,082 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468664753] [2021-10-21 20:04:54,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:54,083 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:54,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:54,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:04:54,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:54,523 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468664753] [2021-10-21 20:04:54,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468664753] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:54,523 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:54,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-21 20:04:54,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866989097] [2021-10-21 20:04:54,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-21 20:04:54,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:54,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 20:04:54,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-10-21 20:04:54,528 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 106 [2021-10-21 20:04:54,530 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 90 transitions, 245 flow. Second operand has 10 states, 10 states have (on average 85.3) internal successors, (853), 10 states have internal predecessors, (853), 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) [2021-10-21 20:04:54,530 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 20:04:54,530 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 106 [2021-10-21 20:04:54,530 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 20:04:55,183 INFO L129 PetriNetUnfolder]: 420/1178 cut-off events. [2021-10-21 20:04:55,183 INFO L130 PetriNetUnfolder]: For 1266/1267 co-relation queries the response was YES. [2021-10-21 20:04:55,190 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2547 conditions, 1178 events. 420/1178 cut-off events. For 1266/1267 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 8140 event pairs, 217 based on Foata normal form. 30/1177 useless extension candidates. Maximal degree in co-relation 2483. Up to 411 conditions per place. [2021-10-21 20:04:55,201 INFO L132 encePairwiseOnDemand]: 93/106 looper letters, 14 selfloop transitions, 10 changer transitions 28/125 dead transitions. [2021-10-21 20:04:55,201 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 125 transitions, 449 flow [2021-10-21 20:04:55,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-21 20:04:55,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-21 20:04:55,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1146 transitions. [2021-10-21 20:04:55,208 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8316400580551524 [2021-10-21 20:04:55,208 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1146 transitions. [2021-10-21 20:04:55,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1146 transitions. [2021-10-21 20:04:55,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:04:55,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1146 transitions. [2021-10-21 20:04:55,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 88.15384615384616) internal successors, (1146), 13 states have internal predecessors, (1146), 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) [2021-10-21 20:04:55,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 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) [2021-10-21 20:04:55,220 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 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) [2021-10-21 20:04:55,221 INFO L186 Difference]: Start difference. First operand has 117 places, 90 transitions, 245 flow. Second operand 13 states and 1146 transitions. [2021-10-21 20:04:55,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 125 transitions, 449 flow [2021-10-21 20:04:55,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 125 transitions, 412 flow, removed 17 selfloop flow, removed 7 redundant places. [2021-10-21 20:04:55,234 INFO L242 Difference]: Finished difference. Result has 124 places, 95 transitions, 297 flow [2021-10-21 20:04:55,234 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=297, PETRI_PLACES=124, PETRI_TRANSITIONS=95} [2021-10-21 20:04:55,235 INFO L334 CegarLoopForPetriNet]: 111 programPoint places, 13 predicate places. [2021-10-21 20:04:55,235 INFO L470 AbstractCegarLoop]: Abstraction has has 124 places, 95 transitions, 297 flow [2021-10-21 20:04:55,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 85.3) internal successors, (853), 10 states have internal predecessors, (853), 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) [2021-10-21 20:04:55,236 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 20:04:55,236 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, 1, 1, 1, 1] [2021-10-21 20:04:55,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-21 20:04:55,237 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-10-21 20:04:55,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:55,237 INFO L82 PathProgramCache]: Analyzing trace with hash 2041243952, now seen corresponding path program 1 times [2021-10-21 20:04:55,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:55,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848356567] [2021-10-21 20:04:55,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:55,239 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:55,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:55,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:04:55,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:55,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848356567] [2021-10-21 20:04:55,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848356567] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:55,474 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:55,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-21 20:04:55,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638519675] [2021-10-21 20:04:55,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 20:04:55,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:55,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 20:04:55,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-21 20:04:55,484 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 106 [2021-10-21 20:04:55,485 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 95 transitions, 297 flow. Second operand has 8 states, 8 states have (on average 88.5) internal successors, (708), 8 states have internal predecessors, (708), 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) [2021-10-21 20:04:55,485 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 20:04:55,486 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 106 [2021-10-21 20:04:55,486 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 20:04:56,092 INFO L129 PetriNetUnfolder]: 384/942 cut-off events. [2021-10-21 20:04:56,093 INFO L130 PetriNetUnfolder]: For 2600/2681 co-relation queries the response was YES. [2021-10-21 20:04:56,100 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3185 conditions, 942 events. 384/942 cut-off events. For 2600/2681 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 5401 event pairs, 115 based on Foata normal form. 15/929 useless extension candidates. Maximal degree in co-relation 3115. Up to 457 conditions per place. [2021-10-21 20:04:56,112 INFO L132 encePairwiseOnDemand]: 95/106 looper letters, 21 selfloop transitions, 12 changer transitions 26/134 dead transitions. [2021-10-21 20:04:56,112 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 134 transitions, 681 flow [2021-10-21 20:04:56,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-21 20:04:56,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-10-21 20:04:56,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1013 transitions. [2021-10-21 20:04:56,118 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8687821612349914 [2021-10-21 20:04:56,118 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1013 transitions. [2021-10-21 20:04:56,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1013 transitions. [2021-10-21 20:04:56,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:04:56,120 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1013 transitions. [2021-10-21 20:04:56,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 92.0909090909091) internal successors, (1013), 11 states have internal predecessors, (1013), 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) [2021-10-21 20:04:56,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 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) [2021-10-21 20:04:56,130 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 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) [2021-10-21 20:04:56,130 INFO L186 Difference]: Start difference. First operand has 124 places, 95 transitions, 297 flow. Second operand 11 states and 1013 transitions. [2021-10-21 20:04:56,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 134 transitions, 681 flow [2021-10-21 20:04:56,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 134 transitions, 655 flow, removed 10 selfloop flow, removed 6 redundant places. [2021-10-21 20:04:56,143 INFO L242 Difference]: Finished difference. Result has 130 places, 103 transitions, 405 flow [2021-10-21 20:04:56,144 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=405, PETRI_PLACES=130, PETRI_TRANSITIONS=103} [2021-10-21 20:04:56,144 INFO L334 CegarLoopForPetriNet]: 111 programPoint places, 19 predicate places. [2021-10-21 20:04:56,144 INFO L470 AbstractCegarLoop]: Abstraction has has 130 places, 103 transitions, 405 flow [2021-10-21 20:04:56,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 88.5) internal successors, (708), 8 states have internal predecessors, (708), 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) [2021-10-21 20:04:56,145 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 20:04:56,146 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, 1, 1, 1, 1] [2021-10-21 20:04:56,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-21 20:04:56,146 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-10-21 20:04:56,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:56,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1366974118, now seen corresponding path program 2 times [2021-10-21 20:04:56,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:56,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382951431] [2021-10-21 20:04:56,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:56,148 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:56,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:56,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:04:56,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:56,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382951431] [2021-10-21 20:04:56,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382951431] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:56,440 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:56,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-21 20:04:56,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469979736] [2021-10-21 20:04:56,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-21 20:04:56,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:56,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 20:04:56,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-21 20:04:56,444 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 106 [2021-10-21 20:04:56,445 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 103 transitions, 405 flow. Second operand has 9 states, 9 states have (on average 88.33333333333333) internal successors, (795), 9 states have internal predecessors, (795), 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) [2021-10-21 20:04:56,446 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 20:04:56,446 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 106 [2021-10-21 20:04:56,446 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 20:04:57,105 INFO L129 PetriNetUnfolder]: 410/1026 cut-off events. [2021-10-21 20:04:57,106 INFO L130 PetriNetUnfolder]: For 7031/7221 co-relation queries the response was YES. [2021-10-21 20:04:57,114 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4623 conditions, 1026 events. 410/1026 cut-off events. For 7031/7221 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 6305 event pairs, 108 based on Foata normal form. 40/1038 useless extension candidates. Maximal degree in co-relation 4549. Up to 382 conditions per place. [2021-10-21 20:04:57,125 INFO L132 encePairwiseOnDemand]: 96/106 looper letters, 23 selfloop transitions, 13 changer transitions 26/137 dead transitions. [2021-10-21 20:04:57,125 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 137 transitions, 881 flow [2021-10-21 20:04:57,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-21 20:04:57,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-10-21 20:04:57,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1008 transitions. [2021-10-21 20:04:57,130 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8644939965694682 [2021-10-21 20:04:57,130 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1008 transitions. [2021-10-21 20:04:57,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1008 transitions. [2021-10-21 20:04:57,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:04:57,131 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1008 transitions. [2021-10-21 20:04:57,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 91.63636363636364) internal successors, (1008), 11 states have internal predecessors, (1008), 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) [2021-10-21 20:04:57,138 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 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) [2021-10-21 20:04:57,139 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 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) [2021-10-21 20:04:57,140 INFO L186 Difference]: Start difference. First operand has 130 places, 103 transitions, 405 flow. Second operand 11 states and 1008 transitions. [2021-10-21 20:04:57,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 137 transitions, 881 flow [2021-10-21 20:04:57,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 137 transitions, 776 flow, removed 52 selfloop flow, removed 7 redundant places. [2021-10-21 20:04:57,161 INFO L242 Difference]: Finished difference. Result has 134 places, 105 transitions, 464 flow [2021-10-21 20:04:57,162 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=464, PETRI_PLACES=134, PETRI_TRANSITIONS=105} [2021-10-21 20:04:57,162 INFO L334 CegarLoopForPetriNet]: 111 programPoint places, 23 predicate places. [2021-10-21 20:04:57,163 INFO L470 AbstractCegarLoop]: Abstraction has has 134 places, 105 transitions, 464 flow [2021-10-21 20:04:57,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 88.33333333333333) internal successors, (795), 9 states have internal predecessors, (795), 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) [2021-10-21 20:04:57,164 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 20:04:57,164 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, 1, 1, 1, 1] [2021-10-21 20:04:57,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-21 20:04:57,164 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-10-21 20:04:57,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:57,165 INFO L82 PathProgramCache]: Analyzing trace with hash 607078623, now seen corresponding path program 1 times [2021-10-21 20:04:57,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:57,166 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161440029] [2021-10-21 20:04:57,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:57,166 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:57,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:57,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:04:57,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:57,287 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161440029] [2021-10-21 20:04:57,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161440029] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:57,287 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:57,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-21 20:04:57,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415494330] [2021-10-21 20:04:57,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 20:04:57,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:57,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 20:04:57,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-21 20:04:57,290 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 106 [2021-10-21 20:04:57,291 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 105 transitions, 464 flow. Second operand has 6 states, 6 states have (on average 93.16666666666667) internal successors, (559), 6 states have internal predecessors, (559), 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) [2021-10-21 20:04:57,291 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 20:04:57,291 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 106 [2021-10-21 20:04:57,291 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 20:04:57,737 INFO L129 PetriNetUnfolder]: 559/1547 cut-off events. [2021-10-21 20:04:57,737 INFO L130 PetriNetUnfolder]: For 6212/6323 co-relation queries the response was YES. [2021-10-21 20:04:57,754 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4925 conditions, 1547 events. 559/1547 cut-off events. For 6212/6323 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 11850 event pairs, 107 based on Foata normal form. 70/1518 useless extension candidates. Maximal degree in co-relation 4850. Up to 343 conditions per place. [2021-10-21 20:04:57,770 INFO L132 encePairwiseOnDemand]: 97/106 looper letters, 19 selfloop transitions, 16 changer transitions 0/130 dead transitions. [2021-10-21 20:04:57,770 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 130 transitions, 584 flow [2021-10-21 20:04:57,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 20:04:57,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-21 20:04:57,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 865 transitions. [2021-10-21 20:04:57,775 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9067085953878407 [2021-10-21 20:04:57,775 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 865 transitions. [2021-10-21 20:04:57,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 865 transitions. [2021-10-21 20:04:57,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:04:57,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 865 transitions. [2021-10-21 20:04:57,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 96.11111111111111) internal successors, (865), 9 states have internal predecessors, (865), 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) [2021-10-21 20:04:57,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 106.0) internal successors, (1060), 10 states have internal predecessors, (1060), 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) [2021-10-21 20:04:57,784 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 106.0) internal successors, (1060), 10 states have internal predecessors, (1060), 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) [2021-10-21 20:04:57,784 INFO L186 Difference]: Start difference. First operand has 134 places, 105 transitions, 464 flow. Second operand 9 states and 865 transitions. [2021-10-21 20:04:57,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 130 transitions, 584 flow [2021-10-21 20:04:57,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 130 transitions, 555 flow, removed 7 selfloop flow, removed 6 redundant places. [2021-10-21 20:04:57,801 INFO L242 Difference]: Finished difference. Result has 135 places, 119 transitions, 546 flow [2021-10-21 20:04:57,802 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=435, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=546, PETRI_PLACES=135, PETRI_TRANSITIONS=119} [2021-10-21 20:04:57,802 INFO L334 CegarLoopForPetriNet]: 111 programPoint places, 24 predicate places. [2021-10-21 20:04:57,803 INFO L470 AbstractCegarLoop]: Abstraction has has 135 places, 119 transitions, 546 flow [2021-10-21 20:04:57,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 93.16666666666667) internal successors, (559), 6 states have internal predecessors, (559), 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) [2021-10-21 20:04:57,803 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 20:04:57,804 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, 1, 1, 1, 1, 1] [2021-10-21 20:04:57,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-21 20:04:57,804 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-10-21 20:04:57,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:57,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1723746048, now seen corresponding path program 1 times [2021-10-21 20:04:57,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:57,806 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350610610] [2021-10-21 20:04:57,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:57,807 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:57,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:58,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:04:58,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:58,013 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350610610] [2021-10-21 20:04:58,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350610610] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:58,013 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:58,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-21 20:04:58,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163872868] [2021-10-21 20:04:58,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 20:04:58,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:58,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 20:04:58,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:04:58,023 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 106 [2021-10-21 20:04:58,024 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 119 transitions, 546 flow. Second operand has 7 states, 7 states have (on average 93.14285714285714) internal successors, (652), 7 states have internal predecessors, (652), 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) [2021-10-21 20:04:58,025 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 20:04:58,025 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 106 [2021-10-21 20:04:58,025 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 20:04:58,512 INFO L129 PetriNetUnfolder]: 366/1225 cut-off events. [2021-10-21 20:04:58,513 INFO L130 PetriNetUnfolder]: For 3196/3960 co-relation queries the response was YES. [2021-10-21 20:04:58,527 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4025 conditions, 1225 events. 366/1225 cut-off events. For 3196/3960 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 9946 event pairs, 18 based on Foata normal form. 219/1365 useless extension candidates. Maximal degree in co-relation 3948. Up to 342 conditions per place. [2021-10-21 20:04:58,536 INFO L132 encePairwiseOnDemand]: 97/106 looper letters, 15 selfloop transitions, 31 changer transitions 6/145 dead transitions. [2021-10-21 20:04:58,537 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 145 transitions, 805 flow [2021-10-21 20:04:58,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-21 20:04:58,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-10-21 20:04:58,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1154 transitions. [2021-10-21 20:04:58,542 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9072327044025157 [2021-10-21 20:04:58,542 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1154 transitions. [2021-10-21 20:04:58,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1154 transitions. [2021-10-21 20:04:58,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:04:58,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1154 transitions. [2021-10-21 20:04:58,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 96.16666666666667) internal successors, (1154), 12 states have internal predecessors, (1154), 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) [2021-10-21 20:04:58,554 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 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) [2021-10-21 20:04:58,556 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 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) [2021-10-21 20:04:58,556 INFO L186 Difference]: Start difference. First operand has 135 places, 119 transitions, 546 flow. Second operand 12 states and 1154 transitions. [2021-10-21 20:04:58,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 145 transitions, 805 flow [2021-10-21 20:04:58,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 145 transitions, 800 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-21 20:04:58,573 INFO L242 Difference]: Finished difference. Result has 147 places, 136 transitions, 745 flow [2021-10-21 20:04:58,575 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=515, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=745, PETRI_PLACES=147, PETRI_TRANSITIONS=136} [2021-10-21 20:04:58,575 INFO L334 CegarLoopForPetriNet]: 111 programPoint places, 36 predicate places. [2021-10-21 20:04:58,576 INFO L470 AbstractCegarLoop]: Abstraction has has 147 places, 136 transitions, 745 flow [2021-10-21 20:04:58,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 93.14285714285714) internal successors, (652), 7 states have internal predecessors, (652), 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) [2021-10-21 20:04:58,576 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 20:04:58,577 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:04:58,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-21 20:04:58,578 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-10-21 20:04:58,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:58,580 INFO L82 PathProgramCache]: Analyzing trace with hash 318662458, now seen corresponding path program 1 times [2021-10-21 20:04:58,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:58,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390258836] [2021-10-21 20:04:58,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:58,583 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:58,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:58,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:04:58,778 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:58,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390258836] [2021-10-21 20:04:58,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390258836] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:58,779 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:58,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-21 20:04:58,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514023587] [2021-10-21 20:04:58,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 20:04:58,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:58,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 20:04:58,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-21 20:04:58,783 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 106 [2021-10-21 20:04:58,785 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 136 transitions, 745 flow. Second operand has 8 states, 8 states have (on average 93.125) internal successors, (745), 8 states have internal predecessors, (745), 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) [2021-10-21 20:04:58,785 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 20:04:58,785 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 106 [2021-10-21 20:04:58,785 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 20:04:59,354 INFO L129 PetriNetUnfolder]: 296/1086 cut-off events. [2021-10-21 20:04:59,354 INFO L130 PetriNetUnfolder]: For 4027/5082 co-relation queries the response was YES. [2021-10-21 20:04:59,366 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3989 conditions, 1086 events. 296/1086 cut-off events. For 4027/5082 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 9248 event pairs, 2 based on Foata normal form. 206/1214 useless extension candidates. Maximal degree in co-relation 3908. Up to 298 conditions per place. [2021-10-21 20:04:59,372 INFO L132 encePairwiseOnDemand]: 97/106 looper letters, 10 selfloop transitions, 36 changer transitions 21/153 dead transitions. [2021-10-21 20:04:59,373 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 153 transitions, 988 flow [2021-10-21 20:04:59,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-21 20:04:59,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-21 20:04:59,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1431 transitions. [2021-10-21 20:04:59,381 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9 [2021-10-21 20:04:59,381 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1431 transitions. [2021-10-21 20:04:59,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1431 transitions. [2021-10-21 20:04:59,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:04:59,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1431 transitions. [2021-10-21 20:04:59,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 95.4) internal successors, (1431), 15 states have internal predecessors, (1431), 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) [2021-10-21 20:04:59,393 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 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) [2021-10-21 20:04:59,394 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 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) [2021-10-21 20:04:59,395 INFO L186 Difference]: Start difference. First operand has 147 places, 136 transitions, 745 flow. Second operand 15 states and 1431 transitions. [2021-10-21 20:04:59,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 153 transitions, 988 flow [2021-10-21 20:04:59,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 153 transitions, 784 flow, removed 84 selfloop flow, removed 11 redundant places. [2021-10-21 20:04:59,435 INFO L242 Difference]: Finished difference. Result has 156 places, 129 transitions, 644 flow [2021-10-21 20:04:59,436 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=562, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=644, PETRI_PLACES=156, PETRI_TRANSITIONS=129} [2021-10-21 20:04:59,436 INFO L334 CegarLoopForPetriNet]: 111 programPoint places, 45 predicate places. [2021-10-21 20:04:59,437 INFO L470 AbstractCegarLoop]: Abstraction has has 156 places, 129 transitions, 644 flow [2021-10-21 20:04:59,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 93.125) internal successors, (745), 8 states have internal predecessors, (745), 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) [2021-10-21 20:04:59,438 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 20:04:59,438 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:04:59,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-21 20:04:59,438 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-10-21 20:04:59,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:59,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1878791155, now seen corresponding path program 1 times [2021-10-21 20:04:59,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:59,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970525252] [2021-10-21 20:04:59,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:59,440 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:59,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:04:59,520 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:04:59,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:04:59,719 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:04:59,719 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-21 20:04:59,721 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 20:04:59,723 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 20:04:59,724 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-21 20:04:59,724 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-21 20:04:59,724 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-21 20:04:59,725 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 20:04:59,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-21 20:04:59,737 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-21 20:04:59,737 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 20:04:59,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 08:04:59 BasicIcfg [2021-10-21 20:04:59,967 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 20:04:59,967 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:04:59,967 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:04:59,968 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:04:59,968 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:04:50" (3/4) ... [2021-10-21 20:04:59,971 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-21 20:05:00,147 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888807dd-215d-47a3-8b16-3c8a33d9e3ea/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 20:05:00,147 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:05:00,149 INFO L168 Benchmark]: Toolchain (without parser) took 13356.28 ms. Allocated memory was 104.9 MB in the beginning and 268.4 MB in the end (delta: 163.6 MB). Free memory was 61.9 MB in the beginning and 99.4 MB in the end (delta: -37.5 MB). Peak memory consumption was 126.9 MB. Max. memory is 16.1 GB. [2021-10-21 20:05:00,150 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 104.9 MB. Free memory is still 79.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:05:00,150 INFO L168 Benchmark]: CACSL2BoogieTranslator took 867.33 ms. Allocated memory is still 104.9 MB. Free memory was 61.7 MB in the beginning and 64.7 MB in the end (delta: -3.0 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. [2021-10-21 20:05:00,151 INFO L168 Benchmark]: Boogie Procedure Inliner took 130.28 ms. Allocated memory is still 104.9 MB. Free memory was 64.7 MB in the beginning and 61.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:05:00,151 INFO L168 Benchmark]: Boogie Preprocessor took 75.17 ms. Allocated memory is still 104.9 MB. Free memory was 61.7 MB in the beginning and 59.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:05:00,152 INFO L168 Benchmark]: RCFGBuilder took 2731.69 ms. Allocated memory was 104.9 MB in the beginning and 130.0 MB in the end (delta: 25.2 MB). Free memory was 59.7 MB in the beginning and 70.7 MB in the end (delta: -11.0 MB). Peak memory consumption was 39.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:05:00,152 INFO L168 Benchmark]: TraceAbstraction took 9361.82 ms. Allocated memory was 130.0 MB in the beginning and 268.4 MB in the end (delta: 138.4 MB). Free memory was 70.7 MB in the beginning and 128.8 MB in the end (delta: -58.1 MB). Peak memory consumption was 81.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:05:00,153 INFO L168 Benchmark]: Witness Printer took 180.32 ms. Allocated memory is still 268.4 MB. Free memory was 128.8 MB in the beginning and 99.4 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:05:00,155 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 104.9 MB. Free memory is still 79.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 867.33 ms. Allocated memory is still 104.9 MB. Free memory was 61.7 MB in the beginning and 64.7 MB in the end (delta: -3.0 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 130.28 ms. Allocated memory is still 104.9 MB. Free memory was 64.7 MB in the beginning and 61.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 75.17 ms. Allocated memory is still 104.9 MB. Free memory was 61.7 MB in the beginning and 59.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2731.69 ms. Allocated memory was 104.9 MB in the beginning and 130.0 MB in the end (delta: 25.2 MB). Free memory was 59.7 MB in the beginning and 70.7 MB in the end (delta: -11.0 MB). Peak memory consumption was 39.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9361.82 ms. Allocated memory was 130.0 MB in the beginning and 268.4 MB in the end (delta: 138.4 MB). Free memory was 70.7 MB in the beginning and 128.8 MB in the end (delta: -58.1 MB). Peak memory consumption was 81.2 MB. Max. memory is 16.1 GB. * Witness Printer took 180.32 ms. Allocated memory is still 268.4 MB. Free memory was 128.8 MB in the beginning and 99.4 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; VAL [__unbuffered_cnt=0] [L711] 0 int __unbuffered_p2_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0] [L712] 0 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0] [L713] 0 _Bool main$tmp_guard1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0] [L715] 0 int x = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L716] 0 _Bool x$flush_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0] [L717] 0 int x$mem_tmp; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0] [L718] 0 _Bool x$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0] [L719] 0 _Bool x$r_buff0_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0] [L720] 0 _Bool x$r_buff0_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0] [L721] 0 _Bool x$r_buff0_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0] [L722] 0 _Bool x$r_buff1_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0] [L723] 0 _Bool x$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0] [L724] 0 _Bool x$r_buff1_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0] [L725] 0 _Bool x$r_buff1_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0] [L726] 0 _Bool x$read_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0] [L727] 0 int *x$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}] [L728] 0 int x$w_buff0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0] [L729] 0 _Bool x$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0] [L730] 0 int x$w_buff1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0] [L731] 0 _Bool x$w_buff1_used; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0] [L733] 0 int y = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L735] 0 int z = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L736] 0 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L737] 0 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L818] 0 pthread_t t2028; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L819] FCALL, FORK 0 pthread_create(&t2028, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L820] 0 pthread_t t2029; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L821] FCALL, FORK 0 pthread_create(&t2029, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L822] 0 pthread_t t2030; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L823] FCALL, FORK 0 pthread_create(&t2030, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L761] 2 x$w_buff1 = x$w_buff0 [L762] 2 x$w_buff0 = 2 [L763] 2 x$w_buff1_used = x$w_buff0_used [L764] 2 x$w_buff0_used = (_Bool)1 [L18] COND FALSE 2 !(!expression) [L766] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L767] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L768] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L769] 2 x$r_buff1_thd3 = x$r_buff0_thd3 [L770] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L773] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L790] 3 __unbuffered_p2_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L793] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L741] 1 z = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L744] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L747] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L747] EXPR 1 x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x [L747] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L747] 1 x = x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L748] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L748] 1 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L749] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L749] 1 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L750] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L750] 1 x$r_buff0_thd1 = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L751] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 [L751] 1 x$r_buff1_thd1 = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 [L776] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L776] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L777] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L777] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L778] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L778] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L779] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L779] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L780] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L780] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L796] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L796] EXPR 3 x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x [L796] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L796] 3 x = x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L797] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L797] 3 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L798] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L798] 3 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L799] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L799] 3 x$r_buff0_thd3 = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L800] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 [L800] 3 x$r_buff1_thd3 = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 [L754] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L783] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L803] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L825] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L3] COND FALSE 0 !(!cond) VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L829] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L829] EXPR 0 x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x [L829] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L829] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L830] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L830] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L831] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L831] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L832] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L832] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L833] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L833] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L836] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L837] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L838] 0 x$flush_delayed = weak$$choice2 [L839] 0 x$mem_tmp = x [L840] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L840] 0 x = !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L841] EXPR 0 weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L841] 0 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L842] EXPR 0 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L842] 0 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L843] EXPR 0 weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L843] 0 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L844] EXPR 0 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L844] 0 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L845] EXPR 0 weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L845] 0 x$r_buff0_thd0 = weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L846] EXPR 0 weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L846] 0 x$r_buff1_thd0 = weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L847] 0 main$tmp_guard1 = !(x == 2 && z == 2 && __unbuffered_p2_EAX == 1) [L848] EXPR 0 x$flush_delayed ? x$mem_tmp : x [L848] 0 x = x$flush_delayed ? x$mem_tmp : x [L849] 0 x$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L18] COND TRUE 0 !expression VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L18] 0 reach_error() VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 819]: 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: 823]: 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: 821]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 133 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 27.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8907.5ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 5110.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 114.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 95 SDtfs, 267 SDslu, 313 SDs, 0 SdLazy, 570 SolverSat, 133 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 875.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 143 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 1378.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=745occurred in iteration=10, InterpolantAutomatonStates: 111, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 109.7ms SsaConstructionTime, 941.3ms SatisfiabilityAnalysisTime, 2035.8ms InterpolantComputationTime, 865 NumberOfCodeBlocks, 865 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 772 ConstructedInterpolants, 0 QuantifiedInterpolants, 2706 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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! [2021-10-21 20:05:00,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888807dd-215d-47a3-8b16-3c8a33d9e3ea/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...