./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-atomic/szymanski.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226d246a-9f8e-4469-a24f-ae15e7a9a3af/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226d246a-9f8e-4469-a24f-ae15e7a9a3af/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226d246a-9f8e-4469-a24f-ae15e7a9a3af/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226d246a-9f8e-4469-a24f-ae15e7a9a3af/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/szymanski.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226d246a-9f8e-4469-a24f-ae15e7a9a3af/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226d246a-9f8e-4469-a24f-ae15e7a9a3af/bin/uautomizer-YU5uOKAj3y --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 bc84ca2197caec735a8480f9d61b820c686ed9ae52711f2c7500999694c2ad40 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 17:41:02,032 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 17:41:02,036 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 17:41:02,109 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 17:41:02,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 17:41:02,112 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 17:41:02,114 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 17:41:02,117 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 17:41:02,120 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 17:41:02,122 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 17:41:02,124 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 17:41:02,126 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 17:41:02,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 17:41:02,129 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 17:41:02,131 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 17:41:02,134 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 17:41:02,136 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 17:41:02,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 17:41:02,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 17:41:02,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 17:41:02,166 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 17:41:02,175 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 17:41:02,177 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 17:41:02,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 17:41:02,184 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 17:41:02,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 17:41:02,189 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 17:41:02,190 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 17:41:02,193 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 17:41:02,194 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 17:41:02,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 17:41:02,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 17:41:02,199 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 17:41:02,201 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 17:41:02,203 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 17:41:02,204 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 17:41:02,205 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 17:41:02,205 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 17:41:02,206 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 17:41:02,207 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 17:41:02,208 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 17:41:02,209 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226d246a-9f8e-4469-a24f-ae15e7a9a3af/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-13 17:41:02,270 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 17:41:02,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 17:41:02,271 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 17:41:02,272 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 17:41:02,274 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 17:41:02,274 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 17:41:02,275 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 17:41:02,276 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 17:41:02,276 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 17:41:02,276 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 17:41:02,278 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 17:41:02,278 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 17:41:02,279 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 17:41:02,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 17:41:02,279 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 17:41:02,280 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 17:41:02,280 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 17:41:02,280 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 17:41:02,280 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 17:41:02,281 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 17:41:02,281 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 17:41:02,281 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 17:41:02,282 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 17:41:02,282 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 17:41:02,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:41:02,283 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 17:41:02,283 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 17:41:02,283 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 17:41:02,284 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 17:41:02,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 17:41:02,284 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 17:41:02,285 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 17:41:02,285 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 17:41:02,285 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 17:41:02,286 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_226d246a-9f8e-4469-a24f-ae15e7a9a3af/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226d246a-9f8e-4469-a24f-ae15e7a9a3af/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc84ca2197caec735a8480f9d61b820c686ed9ae52711f2c7500999694c2ad40 [2021-11-13 17:41:02,619 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 17:41:02,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 17:41:02,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 17:41:02,663 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 17:41:02,664 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 17:41:02,667 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226d246a-9f8e-4469-a24f-ae15e7a9a3af/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/pthread-atomic/szymanski.i [2021-11-13 17:41:02,768 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226d246a-9f8e-4469-a24f-ae15e7a9a3af/bin/uautomizer-YU5uOKAj3y/data/6d6cceb72/afe04438826a47babb39e2e1fed72f94/FLAG5f8733aec [2021-11-13 17:41:03,474 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 17:41:03,475 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226d246a-9f8e-4469-a24f-ae15e7a9a3af/sv-benchmarks/c/pthread-atomic/szymanski.i [2021-11-13 17:41:03,495 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226d246a-9f8e-4469-a24f-ae15e7a9a3af/bin/uautomizer-YU5uOKAj3y/data/6d6cceb72/afe04438826a47babb39e2e1fed72f94/FLAG5f8733aec [2021-11-13 17:41:03,757 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226d246a-9f8e-4469-a24f-ae15e7a9a3af/bin/uautomizer-YU5uOKAj3y/data/6d6cceb72/afe04438826a47babb39e2e1fed72f94 [2021-11-13 17:41:03,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 17:41:03,761 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 17:41:03,763 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 17:41:03,764 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 17:41:03,775 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 17:41:03,776 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:41:03" (1/1) ... [2021-11-13 17:41:03,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e014901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:41:03, skipping insertion in model container [2021-11-13 17:41:03,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:41:03" (1/1) ... [2021-11-13 17:41:03,790 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 17:41:03,875 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 17:41:04,114 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-11-13 17:41:04,396 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_226d246a-9f8e-4469-a24f-ae15e7a9a3af/sv-benchmarks/c/pthread-atomic/szymanski.i[31505,31518] [2021-11-13 17:41:04,412 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_226d246a-9f8e-4469-a24f-ae15e7a9a3af/sv-benchmarks/c/pthread-atomic/szymanski.i[32915,32928] [2021-11-13 17:41:04,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:41:04,448 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 17:41:04,486 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-11-13 17:41:04,527 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_226d246a-9f8e-4469-a24f-ae15e7a9a3af/sv-benchmarks/c/pthread-atomic/szymanski.i[31505,31518] [2021-11-13 17:41:04,539 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_226d246a-9f8e-4469-a24f-ae15e7a9a3af/sv-benchmarks/c/pthread-atomic/szymanski.i[32915,32928] [2021-11-13 17:41:04,551 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:41:04,616 INFO L208 MainTranslator]: Completed translation [2021-11-13 17:41:04,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:41:04 WrapperNode [2021-11-13 17:41:04,618 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 17:41:04,619 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 17:41:04,619 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 17:41:04,620 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 17:41:04,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:41:04" (1/1) ... [2021-11-13 17:41:04,666 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:41:04" (1/1) ... [2021-11-13 17:41:04,703 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 17:41:04,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 17:41:04,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 17:41:04,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 17:41:04,717 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:41:04" (1/1) ... [2021-11-13 17:41:04,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:41:04" (1/1) ... [2021-11-13 17:41:04,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:41:04" (1/1) ... [2021-11-13 17:41:04,741 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:41:04" (1/1) ... [2021-11-13 17:41:04,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:41:04" (1/1) ... [2021-11-13 17:41:04,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:41:04" (1/1) ... [2021-11-13 17:41:04,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:41:04" (1/1) ... [2021-11-13 17:41:04,784 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 17:41:04,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 17:41:04,789 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 17:41:04,789 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 17:41:04,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:41:04" (1/1) ... [2021-11-13 17:41:04,801 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:41:04,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226d246a-9f8e-4469-a24f-ae15e7a9a3af/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:41:04,839 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226d246a-9f8e-4469-a24f-ae15e7a9a3af/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 17:41:04,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226d246a-9f8e-4469-a24f-ae15e7a9a3af/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 17:41:04,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 17:41:04,907 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-11-13 17:41:04,909 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-11-13 17:41:04,909 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-11-13 17:41:04,910 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-11-13 17:41:04,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 17:41:04,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-13 17:41:04,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 17:41:04,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 17:41:04,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 17:41:04,911 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-13 17:41:04,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 17:41:04,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 17:41:04,913 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-13 17:41:05,390 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 17:41:05,391 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-11-13 17:41:05,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:41:05 BoogieIcfgContainer [2021-11-13 17:41:05,414 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 17:41:05,416 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 17:41:05,417 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 17:41:05,423 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 17:41:05,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:41:03" (1/3) ... [2021-11-13 17:41:05,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b9371e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:41:05, skipping insertion in model container [2021-11-13 17:41:05,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:41:04" (2/3) ... [2021-11-13 17:41:05,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b9371e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:41:05, skipping insertion in model container [2021-11-13 17:41:05,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:41:05" (3/3) ... [2021-11-13 17:41:05,428 INFO L111 eAbstractionObserver]: Analyzing ICFG szymanski.i [2021-11-13 17:41:05,438 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-13 17:41:05,438 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 17:41:05,439 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-13 17:41:05,439 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-13 17:41:05,490 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,490 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,491 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,491 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,491 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,492 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,492 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,492 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,493 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,493 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,494 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,494 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,494 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,495 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,495 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,495 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,496 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,496 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,496 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,497 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,497 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,497 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,498 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,498 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,499 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,499 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,499 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,500 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,500 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,501 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,501 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,501 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,502 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,502 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,503 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,503 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,504 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,504 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,505 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,505 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,506 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,506 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,507 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,507 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,508 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,508 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,508 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,509 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,509 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,509 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,510 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,511 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,511 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,511 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,512 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,512 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,512 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,513 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,513 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,514 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,514 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,515 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,515 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,515 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,516 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,516 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,516 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,517 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,517 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,517 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,518 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,518 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,519 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,519 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,519 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,520 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,520 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,521 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,521 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,521 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,522 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,522 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,522 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,523 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,523 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,523 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,524 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,524 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,525 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,525 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,526 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,526 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,527 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,527 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,528 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,528 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,528 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,529 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,529 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,529 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,534 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,534 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,535 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,535 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,535 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,541 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,541 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,542 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,542 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,542 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:41:05,547 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-11-13 17:41:05,663 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 17:41:05,672 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 [2021-11-13 17:41:05,689 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-13 17:41:05,712 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 104 places, 117 transitions, 250 flow [2021-11-13 17:41:05,813 INFO L129 PetriNetUnfolder]: 20/115 cut-off events. [2021-11-13 17:41:05,814 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-11-13 17:41:05,822 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 115 events. 20/115 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 158 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 83. Up to 3 conditions per place. [2021-11-13 17:41:05,823 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 117 transitions, 250 flow [2021-11-13 17:41:05,832 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 105 transitions, 219 flow [2021-11-13 17:41:05,864 INFO L129 PetriNetUnfolder]: 11/70 cut-off events. [2021-11-13 17:41:05,864 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-13 17:41:05,864 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 17:41:05,865 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] [2021-11-13 17:41:05,866 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-11-13 17:41:05,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:41:05,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1091180486, now seen corresponding path program 1 times [2021-11-13 17:41:05,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:41:05,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433142909] [2021-11-13 17:41:05,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:41:05,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:41:06,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:06,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:41:06,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:41:06,256 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433142909] [2021-11-13 17:41:06,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433142909] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:41:06,258 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:41:06,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 17:41:06,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255114652] [2021-11-13 17:41:06,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:41:06,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 17:41:06,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:41:06,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 17:41:06,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 17:41:06,341 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 117 [2021-11-13 17:41:06,349 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 105 transitions, 219 flow. Second operand has 2 states, 2 states have (on average 104.5) internal successors, (209), 2 states have internal predecessors, (209), 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) [2021-11-13 17:41:06,350 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 17:41:06,350 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 117 [2021-11-13 17:41:06,352 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 17:41:06,449 INFO L129 PetriNetUnfolder]: 10/95 cut-off events. [2021-11-13 17:41:06,452 INFO L130 PetriNetUnfolder]: For 6/7 co-relation queries the response was YES. [2021-11-13 17:41:06,455 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 95 events. 10/95 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 141 event pairs, 0 based on Foata normal form. 16/99 useless extension candidates. Maximal degree in co-relation 74. Up to 4 conditions per place. [2021-11-13 17:41:06,458 INFO L132 encePairwiseOnDemand]: 107/117 looper letters, 3 selfloop transitions, 0 changer transitions 0/95 dead transitions. [2021-11-13 17:41:06,459 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 95 transitions, 205 flow [2021-11-13 17:41:06,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 17:41:06,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-11-13 17:41:06,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 219 transitions. [2021-11-13 17:41:06,493 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9358974358974359 [2021-11-13 17:41:06,494 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 219 transitions. [2021-11-13 17:41:06,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 219 transitions. [2021-11-13 17:41:06,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 17:41:06,500 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 219 transitions. [2021-11-13 17:41:06,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 109.5) internal successors, (219), 2 states have internal predecessors, (219), 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) [2021-11-13 17:41:06,524 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 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) [2021-11-13 17:41:06,525 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 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) [2021-11-13 17:41:06,527 INFO L186 Difference]: Start difference. First operand has 92 places, 105 transitions, 219 flow. Second operand 2 states and 219 transitions. [2021-11-13 17:41:06,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 95 transitions, 205 flow [2021-11-13 17:41:06,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 95 transitions, 200 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-11-13 17:41:06,546 INFO L242 Difference]: Finished difference. Result has 90 places, 95 transitions, 194 flow [2021-11-13 17:41:06,549 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=194, PETRI_PLACES=90, PETRI_TRANSITIONS=95} [2021-11-13 17:41:06,556 INFO L334 CegarLoopForPetriNet]: 92 programPoint places, -2 predicate places. [2021-11-13 17:41:06,556 INFO L470 AbstractCegarLoop]: Abstraction has has 90 places, 95 transitions, 194 flow [2021-11-13 17:41:06,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 104.5) internal successors, (209), 2 states have internal predecessors, (209), 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) [2021-11-13 17:41:06,557 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 17:41:06,558 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] [2021-11-13 17:41:06,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 17:41:06,559 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-11-13 17:41:06,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:41:06,561 INFO L85 PathProgramCache]: Analyzing trace with hash 894696772, now seen corresponding path program 1 times [2021-11-13 17:41:06,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:41:06,561 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092984445] [2021-11-13 17:41:06,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:41:06,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:41:06,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:06,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:41:06,694 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:41:06,695 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092984445] [2021-11-13 17:41:06,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092984445] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:41:06,695 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:41:06,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 17:41:06,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550060005] [2021-11-13 17:41:06,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:41:06,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:41:06,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:41:06,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:41:06,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:41:06,702 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 117 [2021-11-13 17:41:06,703 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 95 transitions, 194 flow. Second operand has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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) [2021-11-13 17:41:06,704 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 17:41:06,704 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 117 [2021-11-13 17:41:06,704 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 17:41:06,836 INFO L129 PetriNetUnfolder]: 34/213 cut-off events. [2021-11-13 17:41:06,837 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-11-13 17:41:06,842 INFO L84 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 213 events. 34/213 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 709 event pairs, 4 based on Foata normal form. 0/182 useless extension candidates. Maximal degree in co-relation 265. Up to 24 conditions per place. [2021-11-13 17:41:06,845 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 11 selfloop transitions, 3 changer transitions 0/99 dead transitions. [2021-11-13 17:41:06,846 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 99 transitions, 231 flow [2021-11-13 17:41:06,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:41:06,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-13 17:41:06,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 304 transitions. [2021-11-13 17:41:06,858 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8660968660968661 [2021-11-13 17:41:06,861 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 304 transitions. [2021-11-13 17:41:06,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 304 transitions. [2021-11-13 17:41:06,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 17:41:06,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 304 transitions. [2021-11-13 17:41:06,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 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) [2021-11-13 17:41:06,871 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 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) [2021-11-13 17:41:06,873 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 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) [2021-11-13 17:41:06,873 INFO L186 Difference]: Start difference. First operand has 90 places, 95 transitions, 194 flow. Second operand 3 states and 304 transitions. [2021-11-13 17:41:06,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 99 transitions, 231 flow [2021-11-13 17:41:06,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 99 transitions, 231 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-13 17:41:06,885 INFO L242 Difference]: Finished difference. Result has 94 places, 96 transitions, 214 flow [2021-11-13 17:41:06,887 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=214, PETRI_PLACES=94, PETRI_TRANSITIONS=96} [2021-11-13 17:41:06,888 INFO L334 CegarLoopForPetriNet]: 92 programPoint places, 2 predicate places. [2021-11-13 17:41:06,889 INFO L470 AbstractCegarLoop]: Abstraction has has 94 places, 96 transitions, 214 flow [2021-11-13 17:41:06,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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) [2021-11-13 17:41:06,889 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 17:41:06,890 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] [2021-11-13 17:41:06,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 17:41:06,893 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-11-13 17:41:06,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:41:06,894 INFO L85 PathProgramCache]: Analyzing trace with hash 378899323, now seen corresponding path program 1 times [2021-11-13 17:41:06,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:41:06,895 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141624545] [2021-11-13 17:41:06,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:41:06,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:41:06,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:07,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:41:07,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:41:07,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141624545] [2021-11-13 17:41:07,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141624545] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:41:07,012 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:41:07,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 17:41:07,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053504711] [2021-11-13 17:41:07,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:41:07,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:41:07,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:41:07,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:41:07,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:41:07,016 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 117 [2021-11-13 17:41:07,017 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 96 transitions, 214 flow. Second operand has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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) [2021-11-13 17:41:07,018 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 17:41:07,018 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 117 [2021-11-13 17:41:07,018 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 17:41:07,095 INFO L129 PetriNetUnfolder]: 27/191 cut-off events. [2021-11-13 17:41:07,095 INFO L130 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2021-11-13 17:41:07,097 INFO L84 FinitePrefix]: Finished finitePrefix Result has 260 conditions, 191 events. 27/191 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 589 event pairs, 5 based on Foata normal form. 7/175 useless extension candidates. Maximal degree in co-relation 255. Up to 22 conditions per place. [2021-11-13 17:41:07,099 INFO L132 encePairwiseOnDemand]: 113/117 looper letters, 10 selfloop transitions, 2 changer transitions 0/97 dead transitions. [2021-11-13 17:41:07,099 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 97 transitions, 241 flow [2021-11-13 17:41:07,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:41:07,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-13 17:41:07,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 302 transitions. [2021-11-13 17:41:07,101 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8603988603988604 [2021-11-13 17:41:07,102 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 302 transitions. [2021-11-13 17:41:07,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 302 transitions. [2021-11-13 17:41:07,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 17:41:07,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 302 transitions. [2021-11-13 17:41:07,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 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) [2021-11-13 17:41:07,107 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 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) [2021-11-13 17:41:07,108 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 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) [2021-11-13 17:41:07,108 INFO L186 Difference]: Start difference. First operand has 94 places, 96 transitions, 214 flow. Second operand 3 states and 302 transitions. [2021-11-13 17:41:07,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 97 transitions, 241 flow [2021-11-13 17:41:07,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 97 transitions, 235 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-13 17:41:07,120 INFO L242 Difference]: Finished difference. Result has 95 places, 96 transitions, 218 flow [2021-11-13 17:41:07,120 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=95, PETRI_TRANSITIONS=96} [2021-11-13 17:41:07,123 INFO L334 CegarLoopForPetriNet]: 92 programPoint places, 3 predicate places. [2021-11-13 17:41:07,124 INFO L470 AbstractCegarLoop]: Abstraction has has 95 places, 96 transitions, 218 flow [2021-11-13 17:41:07,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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) [2021-11-13 17:41:07,125 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 17:41:07,126 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] [2021-11-13 17:41:07,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 17:41:07,127 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-11-13 17:41:07,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:41:07,131 INFO L85 PathProgramCache]: Analyzing trace with hash 412261863, now seen corresponding path program 1 times [2021-11-13 17:41:07,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:41:07,133 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147388307] [2021-11-13 17:41:07,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:41:07,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:41:07,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:07,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:41:07,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:41:07,281 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147388307] [2021-11-13 17:41:07,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147388307] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:41:07,281 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:41:07,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:41:07,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038483363] [2021-11-13 17:41:07,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:41:07,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:41:07,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:41:07,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:41:07,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:41:07,285 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 117 [2021-11-13 17:41:07,286 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 96 transitions, 218 flow. Second operand has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 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) [2021-11-13 17:41:07,286 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 17:41:07,286 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 117 [2021-11-13 17:41:07,286 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 17:41:07,628 INFO L129 PetriNetUnfolder]: 195/694 cut-off events. [2021-11-13 17:41:07,628 INFO L130 PetriNetUnfolder]: For 60/60 co-relation queries the response was YES. [2021-11-13 17:41:07,632 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1101 conditions, 694 events. 195/694 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 4130 event pairs, 79 based on Foata normal form. 0/596 useless extension candidates. Maximal degree in co-relation 1095. Up to 220 conditions per place. [2021-11-13 17:41:07,637 INFO L132 encePairwiseOnDemand]: 100/117 looper letters, 33 selfloop transitions, 6 changer transitions 31/138 dead transitions. [2021-11-13 17:41:07,637 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 138 transitions, 445 flow [2021-11-13 17:41:07,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:41:07,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-11-13 17:41:07,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 470 transitions. [2021-11-13 17:41:07,641 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8034188034188035 [2021-11-13 17:41:07,641 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 470 transitions. [2021-11-13 17:41:07,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 470 transitions. [2021-11-13 17:41:07,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 17:41:07,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 470 transitions. [2021-11-13 17:41:07,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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) [2021-11-13 17:41:07,647 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 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) [2021-11-13 17:41:07,648 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 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) [2021-11-13 17:41:07,648 INFO L186 Difference]: Start difference. First operand has 95 places, 96 transitions, 218 flow. Second operand 5 states and 470 transitions. [2021-11-13 17:41:07,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 138 transitions, 445 flow [2021-11-13 17:41:07,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 138 transitions, 443 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-13 17:41:07,656 INFO L242 Difference]: Finished difference. Result has 101 places, 99 transitions, 286 flow [2021-11-13 17:41:07,657 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=286, PETRI_PLACES=101, PETRI_TRANSITIONS=99} [2021-11-13 17:41:07,658 INFO L334 CegarLoopForPetriNet]: 92 programPoint places, 9 predicate places. [2021-11-13 17:41:07,659 INFO L470 AbstractCegarLoop]: Abstraction has has 101 places, 99 transitions, 286 flow [2021-11-13 17:41:07,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 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) [2021-11-13 17:41:07,659 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 17:41:07,660 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] [2021-11-13 17:41:07,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 17:41:07,661 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-11-13 17:41:07,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:41:07,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1312454881, now seen corresponding path program 2 times [2021-11-13 17:41:07,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:41:07,662 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442615559] [2021-11-13 17:41:07,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:41:07,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:41:07,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:07,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:41:07,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:41:07,726 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442615559] [2021-11-13 17:41:07,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442615559] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:41:07,727 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:41:07,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:41:07,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976062989] [2021-11-13 17:41:07,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:41:07,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:41:07,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:41:07,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:41:07,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:41:07,731 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 117 [2021-11-13 17:41:07,732 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 99 transitions, 286 flow. Second operand has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 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) [2021-11-13 17:41:07,732 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 17:41:07,732 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 117 [2021-11-13 17:41:07,732 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 17:41:08,073 INFO L129 PetriNetUnfolder]: 246/804 cut-off events. [2021-11-13 17:41:08,073 INFO L130 PetriNetUnfolder]: For 126/128 co-relation queries the response was YES. [2021-11-13 17:41:08,079 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1621 conditions, 804 events. 246/804 cut-off events. For 126/128 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 5008 event pairs, 91 based on Foata normal form. 0/733 useless extension candidates. Maximal degree in co-relation 1612. Up to 289 conditions per place. [2021-11-13 17:41:08,086 INFO L132 encePairwiseOnDemand]: 100/117 looper letters, 41 selfloop transitions, 13 changer transitions 18/143 dead transitions. [2021-11-13 17:41:08,086 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 143 transitions, 523 flow [2021-11-13 17:41:08,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:41:08,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-11-13 17:41:08,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 472 transitions. [2021-11-13 17:41:08,090 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8068376068376069 [2021-11-13 17:41:08,090 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 472 transitions. [2021-11-13 17:41:08,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 472 transitions. [2021-11-13 17:41:08,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 17:41:08,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 472 transitions. [2021-11-13 17:41:08,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 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) [2021-11-13 17:41:08,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 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) [2021-11-13 17:41:08,097 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 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) [2021-11-13 17:41:08,097 INFO L186 Difference]: Start difference. First operand has 101 places, 99 transitions, 286 flow. Second operand 5 states and 472 transitions. [2021-11-13 17:41:08,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 143 transitions, 523 flow [2021-11-13 17:41:08,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 143 transitions, 501 flow, removed 11 selfloop flow, removed 0 redundant places. [2021-11-13 17:41:08,115 INFO L242 Difference]: Finished difference. Result has 109 places, 110 transitions, 386 flow [2021-11-13 17:41:08,115 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=386, PETRI_PLACES=109, PETRI_TRANSITIONS=110} [2021-11-13 17:41:08,120 INFO L334 CegarLoopForPetriNet]: 92 programPoint places, 17 predicate places. [2021-11-13 17:41:08,120 INFO L470 AbstractCegarLoop]: Abstraction has has 109 places, 110 transitions, 386 flow [2021-11-13 17:41:08,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 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) [2021-11-13 17:41:08,121 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 17:41:08,122 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] [2021-11-13 17:41:08,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 17:41:08,123 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-11-13 17:41:08,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:41:08,124 INFO L85 PathProgramCache]: Analyzing trace with hash -280044353, now seen corresponding path program 3 times [2021-11-13 17:41:08,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:41:08,124 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869613838] [2021-11-13 17:41:08,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:41:08,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:41:08,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:08,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:41:08,215 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:41:08,215 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869613838] [2021-11-13 17:41:08,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869613838] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:41:08,216 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:41:08,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:41:08,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315769006] [2021-11-13 17:41:08,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:41:08,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:41:08,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:41:08,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:41:08,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:41:08,220 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 117 [2021-11-13 17:41:08,221 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 110 transitions, 386 flow. Second operand has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 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) [2021-11-13 17:41:08,221 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 17:41:08,221 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 117 [2021-11-13 17:41:08,221 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 17:41:08,511 INFO L129 PetriNetUnfolder]: 241/801 cut-off events. [2021-11-13 17:41:08,512 INFO L130 PetriNetUnfolder]: For 409/414 co-relation queries the response was YES. [2021-11-13 17:41:08,519 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1889 conditions, 801 events. 241/801 cut-off events. For 409/414 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 4956 event pairs, 65 based on Foata normal form. 15/764 useless extension candidates. Maximal degree in co-relation 1876. Up to 254 conditions per place. [2021-11-13 17:41:08,521 INFO L132 encePairwiseOnDemand]: 100/117 looper letters, 0 selfloop transitions, 0 changer transitions 152/152 dead transitions. [2021-11-13 17:41:08,522 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 152 transitions, 755 flow [2021-11-13 17:41:08,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:41:08,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-11-13 17:41:08,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 470 transitions. [2021-11-13 17:41:08,530 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8034188034188035 [2021-11-13 17:41:08,530 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 470 transitions. [2021-11-13 17:41:08,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 470 transitions. [2021-11-13 17:41:08,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 17:41:08,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 470 transitions. [2021-11-13 17:41:08,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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) [2021-11-13 17:41:08,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 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) [2021-11-13 17:41:08,538 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 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) [2021-11-13 17:41:08,539 INFO L186 Difference]: Start difference. First operand has 109 places, 110 transitions, 386 flow. Second operand 5 states and 470 transitions. [2021-11-13 17:41:08,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 152 transitions, 755 flow [2021-11-13 17:41:08,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 152 transitions, 721 flow, removed 16 selfloop flow, removed 1 redundant places. [2021-11-13 17:41:08,554 INFO L242 Difference]: Finished difference. Result has 108 places, 0 transitions, 0 flow [2021-11-13 17:41:08,555 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=108, PETRI_TRANSITIONS=0} [2021-11-13 17:41:08,558 INFO L334 CegarLoopForPetriNet]: 92 programPoint places, 16 predicate places. [2021-11-13 17:41:08,558 INFO L470 AbstractCegarLoop]: Abstraction has has 108 places, 0 transitions, 0 flow [2021-11-13 17:41:08,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 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) [2021-11-13 17:41:08,562 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2021-11-13 17:41:08,563 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2021-11-13 17:41:08,564 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 6 remaining) [2021-11-13 17:41:08,564 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 6 remaining) [2021-11-13 17:41:08,565 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2021-11-13 17:41:08,565 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2021-11-13 17:41:08,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 17:41:08,577 INFO L732 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1] [2021-11-13 17:41:08,583 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-13 17:41:08,583 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 17:41:08,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 05:41:08 BasicIcfg [2021-11-13 17:41:08,589 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 17:41:08,592 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 17:41:08,592 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 17:41:08,593 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 17:41:08,593 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:41:05" (3/4) ... [2021-11-13 17:41:08,597 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 17:41:08,606 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2 [2021-11-13 17:41:08,606 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2021-11-13 17:41:08,614 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-11-13 17:41:08,614 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-13 17:41:08,615 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-13 17:41:08,615 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 17:41:08,670 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226d246a-9f8e-4469-a24f-ae15e7a9a3af/bin/uautomizer-YU5uOKAj3y/witness.graphml [2021-11-13 17:41:08,671 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 17:41:08,672 INFO L158 Benchmark]: Toolchain (without parser) took 4910.15ms. Allocated memory was 92.3MB in the beginning and 142.6MB in the end (delta: 50.3MB). Free memory was 59.7MB in the beginning and 55.9MB in the end (delta: 3.8MB). Peak memory consumption was 53.4MB. Max. memory is 16.1GB. [2021-11-13 17:41:08,673 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 92.3MB. Free memory is still 47.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 17:41:08,673 INFO L158 Benchmark]: CACSL2BoogieTranslator took 854.66ms. Allocated memory is still 92.3MB. Free memory was 59.5MB in the beginning and 57.9MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 17:41:08,674 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.69ms. Allocated memory is still 92.3MB. Free memory was 57.9MB in the beginning and 56.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 17:41:08,674 INFO L158 Benchmark]: Boogie Preprocessor took 82.45ms. Allocated memory is still 92.3MB. Free memory was 55.8MB in the beginning and 54.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 17:41:08,674 INFO L158 Benchmark]: RCFGBuilder took 625.66ms. Allocated memory was 92.3MB in the beginning and 117.4MB in the end (delta: 25.2MB). Free memory was 54.4MB in the beginning and 93.8MB in the end (delta: -39.4MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2021-11-13 17:41:08,675 INFO L158 Benchmark]: TraceAbstraction took 3172.70ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 93.3MB in the beginning and 58.0MB in the end (delta: 35.3MB). Peak memory consumption was 60.0MB. Max. memory is 16.1GB. [2021-11-13 17:41:08,676 INFO L158 Benchmark]: Witness Printer took 78.87ms. Allocated memory is still 142.6MB. Free memory was 58.0MB in the beginning and 55.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 17:41:08,680 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 92.3MB. Free memory is still 47.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 854.66ms. Allocated memory is still 92.3MB. Free memory was 59.5MB in the beginning and 57.9MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.69ms. Allocated memory is still 92.3MB. Free memory was 57.9MB in the beginning and 56.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 82.45ms. Allocated memory is still 92.3MB. Free memory was 55.8MB in the beginning and 54.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 625.66ms. Allocated memory was 92.3MB in the beginning and 117.4MB in the end (delta: 25.2MB). Free memory was 54.4MB in the beginning and 93.8MB in the end (delta: -39.4MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. * TraceAbstraction took 3172.70ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 93.3MB in the beginning and 58.0MB in the end (delta: 35.3MB). Peak memory consumption was 60.0MB. Max. memory is 16.1GB. * Witness Printer took 78.87ms. Allocated memory is still 142.6MB. Free memory was 58.0MB in the beginning and 55.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 802]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 745]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 154 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 109 SdHoareTripleChecker+Valid, 468.44ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 109 mSDsluCounter, 181 SdHoareTripleChecker+Invalid, 349.12ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 74 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 288 IncrementalHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 133 mSDtfsCounter, 288 mSolverCounterSat, 14.92ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=386occurred in iteration=5, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 261 NumberOfCodeBlocks, 261 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 255 ConstructedInterpolants, 0 QuantifiedInterpolants, 311 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-13 17:41:08,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226d246a-9f8e-4469-a24f-ae15e7a9a3af/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE