./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/thin002_power.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb154c9d-2f1e-46af-a1fc-ba02b1770aed/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb154c9d-2f1e-46af-a1fc-ba02b1770aed/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb154c9d-2f1e-46af-a1fc-ba02b1770aed/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb154c9d-2f1e-46af-a1fc-ba02b1770aed/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/thin002_power.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb154c9d-2f1e-46af-a1fc-ba02b1770aed/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb154c9d-2f1e-46af-a1fc-ba02b1770aed/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8cac3035eaeb2816ec7d27d980ff4447cc10ff3a409a1a8662d4bf55d93fe6d5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:07:05,164 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:07:05,167 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:07:05,222 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:07:05,224 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:07:05,226 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:07:05,229 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:07:05,234 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:07:05,239 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:07:05,241 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:07:05,243 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:07:05,246 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:07:05,248 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:07:05,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:07:05,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:07:05,257 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:07:05,259 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:07:05,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:07:05,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:07:05,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:07:05,277 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:07:05,279 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:07:05,280 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:07:05,283 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:07:05,292 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:07:05,294 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:07:05,294 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:07:05,297 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:07:05,299 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:07:05,300 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:07:05,301 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:07:05,306 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:07:05,308 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:07:05,310 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:07:05,311 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:07:05,311 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:07:05,312 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:07:05,312 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:07:05,313 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:07:05,314 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:07:05,315 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:07:05,316 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb154c9d-2f1e-46af-a1fc-ba02b1770aed/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 20:07:05,363 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:07:05,364 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:07:05,365 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:07:05,365 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:07:05,366 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:07:05,366 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:07:05,368 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:07:05,368 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:07:05,368 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:07:05,369 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:07:05,370 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:07:05,370 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:07:05,371 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:07:05,371 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:07:05,371 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:07:05,372 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:07:05,372 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:07:05,372 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:07:05,372 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:07:05,373 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:07:05,373 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:07:05,373 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:07:05,374 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:07:05,374 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:07:05,374 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:07:05,374 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:07:05,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:07:05,377 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:07:05,377 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:07:05,377 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:07:05,378 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:07:05,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:07:05,378 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:07:05,379 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:07:05,379 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:07:05,379 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_fb154c9d-2f1e-46af-a1fc-ba02b1770aed/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb154c9d-2f1e-46af-a1fc-ba02b1770aed/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8cac3035eaeb2816ec7d27d980ff4447cc10ff3a409a1a8662d4bf55d93fe6d5 [2022-11-18 20:07:05,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:07:05,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:07:05,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:07:05,772 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:07:05,773 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:07:05,775 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb154c9d-2f1e-46af-a1fc-ba02b1770aed/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread-wmm/thin002_power.oepc.i [2022-11-18 20:07:05,884 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb154c9d-2f1e-46af-a1fc-ba02b1770aed/bin/uautomizer-TMbwUNV5ro/data/d484eb30c/121f2de4233148428503a9e79731c243/FLAGbd3fb6bf8 [2022-11-18 20:07:06,571 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:07:06,572 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb154c9d-2f1e-46af-a1fc-ba02b1770aed/sv-benchmarks/c/pthread-wmm/thin002_power.oepc.i [2022-11-18 20:07:06,590 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb154c9d-2f1e-46af-a1fc-ba02b1770aed/bin/uautomizer-TMbwUNV5ro/data/d484eb30c/121f2de4233148428503a9e79731c243/FLAGbd3fb6bf8 [2022-11-18 20:07:06,841 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb154c9d-2f1e-46af-a1fc-ba02b1770aed/bin/uautomizer-TMbwUNV5ro/data/d484eb30c/121f2de4233148428503a9e79731c243 [2022-11-18 20:07:06,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:07:06,846 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:07:06,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:07:06,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:07:06,854 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:07:06,855 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:07:06" (1/1) ... [2022-11-18 20:07:06,859 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48b96da5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:06, skipping insertion in model container [2022-11-18 20:07:06,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:07:06" (1/1) ... [2022-11-18 20:07:06,869 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:07:06,937 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:07:07,161 WARN L234 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_fb154c9d-2f1e-46af-a1fc-ba02b1770aed/sv-benchmarks/c/pthread-wmm/thin002_power.oepc.i[995,1008] [2022-11-18 20:07:07,427 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:07:07,437 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:07:07,450 WARN L234 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_fb154c9d-2f1e-46af-a1fc-ba02b1770aed/sv-benchmarks/c/pthread-wmm/thin002_power.oepc.i[995,1008] [2022-11-18 20:07:07,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:07:07,543 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:07:07,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:07 WrapperNode [2022-11-18 20:07:07,544 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:07:07,545 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:07:07,545 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:07:07,545 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:07:07,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:07" (1/1) ... [2022-11-18 20:07:07,579 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:07" (1/1) ... [2022-11-18 20:07:07,617 INFO L138 Inliner]: procedures = 177, calls = 82, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 154 [2022-11-18 20:07:07,623 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:07:07,623 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:07:07,624 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:07:07,624 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:07:07,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:07" (1/1) ... [2022-11-18 20:07:07,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:07" (1/1) ... [2022-11-18 20:07:07,653 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:07" (1/1) ... [2022-11-18 20:07:07,654 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:07" (1/1) ... [2022-11-18 20:07:07,680 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:07" (1/1) ... [2022-11-18 20:07:07,683 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:07" (1/1) ... [2022-11-18 20:07:07,685 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:07" (1/1) ... [2022-11-18 20:07:07,687 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:07" (1/1) ... [2022-11-18 20:07:07,691 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:07:07,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:07:07,693 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:07:07,693 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:07:07,707 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:07" (1/1) ... [2022-11-18 20:07:07,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:07:07,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb154c9d-2f1e-46af-a1fc-ba02b1770aed/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:07:07,749 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb154c9d-2f1e-46af-a1fc-ba02b1770aed/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:07:07,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb154c9d-2f1e-46af-a1fc-ba02b1770aed/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:07:07,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:07:07,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:07:07,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 20:07:07,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:07:07,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:07:07,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:07:07,799 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-18 20:07:07,799 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-18 20:07:07,799 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-18 20:07:07,799 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-18 20:07:07,799 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-18 20:07:07,800 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-18 20:07:07,800 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-18 20:07:07,800 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-18 20:07:07,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:07:07,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 20:07:07,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:07:07,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:07:07,802 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:07:08,080 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:07:08,083 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:07:08,648 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:07:09,025 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:07:09,026 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:07:09,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:07:09 BoogieIcfgContainer [2022-11-18 20:07:09,029 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:07:09,033 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:07:09,033 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:07:09,037 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:07:09,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:07:06" (1/3) ... [2022-11-18 20:07:09,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45b9463f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:07:09, skipping insertion in model container [2022-11-18 20:07:09,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:07" (2/3) ... [2022-11-18 20:07:09,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45b9463f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:07:09, skipping insertion in model container [2022-11-18 20:07:09,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:07:09" (3/3) ... [2022-11-18 20:07:09,043 INFO L112 eAbstractionObserver]: Analyzing ICFG thin002_power.oepc.i [2022-11-18 20:07:09,058 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:07:09,070 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:07:09,070 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-18 20:07:09,070 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:07:09,183 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 20:07:09,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 172 places, 161 transitions, 342 flow [2022-11-18 20:07:09,340 INFO L130 PetriNetUnfolder]: 2/157 cut-off events. [2022-11-18 20:07:09,340 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:07:09,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 157 events. 2/157 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 86 event pairs, 0 based on Foata normal form. 0/147 useless extension candidates. Maximal degree in co-relation 94. Up to 2 conditions per place. [2022-11-18 20:07:09,347 INFO L82 GeneralOperation]: Start removeDead. Operand has 172 places, 161 transitions, 342 flow [2022-11-18 20:07:09,352 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 168 places, 157 transitions, 326 flow [2022-11-18 20:07:09,362 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:07:09,370 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7cb13b29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:07:09,370 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-18 20:07:09,393 INFO L130 PetriNetUnfolder]: 0/76 cut-off events. [2022-11-18 20:07:09,393 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:07:09,393 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:07:09,394 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:07:09,395 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-18 20:07:09,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:09,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1847796304, now seen corresponding path program 1 times [2022-11-18 20:07:09,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:07:09,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510825092] [2022-11-18 20:07:09,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:07:09,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:07:09,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:10,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:07:10,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:07:10,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510825092] [2022-11-18 20:07:10,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510825092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:07:10,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:07:10,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:07:10,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015817685] [2022-11-18 20:07:10,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:07:10,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:07:10,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:07:10,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:07:10,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:07:10,056 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 161 [2022-11-18 20:07:10,060 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 157 transitions, 326 flow. Second operand has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 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) [2022-11-18 20:07:10,061 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:07:10,061 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 161 [2022-11-18 20:07:10,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:07:11,743 INFO L130 PetriNetUnfolder]: 2556/4483 cut-off events. [2022-11-18 20:07:11,745 INFO L131 PetriNetUnfolder]: For 60/60 co-relation queries the response was YES. [2022-11-18 20:07:11,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8265 conditions, 4483 events. 2556/4483 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 383. Compared 32172 event pairs, 1011 based on Foata normal form. 454/3286 useless extension candidates. Maximal degree in co-relation 8186. Up to 3618 conditions per place. [2022-11-18 20:07:11,813 INFO L137 encePairwiseOnDemand]: 146/161 looper letters, 29 selfloop transitions, 5 changer transitions 0/166 dead transitions. [2022-11-18 20:07:11,813 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 166 transitions, 421 flow [2022-11-18 20:07:11,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:07:11,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:07:11,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 454 transitions. [2022-11-18 20:07:11,838 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9399585921325052 [2022-11-18 20:07:11,838 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 454 transitions. [2022-11-18 20:07:11,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 454 transitions. [2022-11-18 20:07:11,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:07:11,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 454 transitions. [2022-11-18 20:07:11,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 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) [2022-11-18 20:07:11,862 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 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) [2022-11-18 20:07:11,863 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 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) [2022-11-18 20:07:11,865 INFO L175 Difference]: Start difference. First operand has 168 places, 157 transitions, 326 flow. Second operand 3 states and 454 transitions. [2022-11-18 20:07:11,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 166 transitions, 421 flow [2022-11-18 20:07:11,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 166 transitions, 414 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 20:07:11,879 INFO L231 Difference]: Finished difference. Result has 166 places, 158 transitions, 363 flow [2022-11-18 20:07:11,881 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=363, PETRI_PLACES=166, PETRI_TRANSITIONS=158} [2022-11-18 20:07:11,888 INFO L288 CegarLoopForPetriNet]: 168 programPoint places, -2 predicate places. [2022-11-18 20:07:11,889 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 158 transitions, 363 flow [2022-11-18 20:07:11,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 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) [2022-11-18 20:07:11,890 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:07:11,890 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:07:11,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:07:11,891 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-18 20:07:11,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:11,892 INFO L85 PathProgramCache]: Analyzing trace with hash -481312112, now seen corresponding path program 1 times [2022-11-18 20:07:11,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:07:11,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41777523] [2022-11-18 20:07:11,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:07:11,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:07:11,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:12,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:07:12,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:07:12,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41777523] [2022-11-18 20:07:12,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41777523] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:07:12,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:07:12,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:07:12,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866447161] [2022-11-18 20:07:12,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:07:12,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:07:12,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:07:12,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:07:12,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:07:12,147 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 161 [2022-11-18 20:07:12,148 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 158 transitions, 363 flow. Second operand has 4 states, 4 states have (on average 137.5) internal successors, (550), 4 states have internal predecessors, (550), 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) [2022-11-18 20:07:12,148 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:07:12,148 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 161 [2022-11-18 20:07:12,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:07:13,573 INFO L130 PetriNetUnfolder]: 1412/4869 cut-off events. [2022-11-18 20:07:13,573 INFO L131 PetriNetUnfolder]: For 233/233 co-relation queries the response was YES. [2022-11-18 20:07:13,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8581 conditions, 4869 events. 1412/4869 cut-off events. For 233/233 co-relation queries the response was YES. Maximal size of possible extension queue 279. Compared 47366 event pairs, 514 based on Foata normal form. 0/3892 useless extension candidates. Maximal degree in co-relation 8503. Up to 1339 conditions per place. [2022-11-18 20:07:13,634 INFO L137 encePairwiseOnDemand]: 148/161 looper letters, 36 selfloop transitions, 13 changer transitions 0/181 dead transitions. [2022-11-18 20:07:13,635 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 181 transitions, 533 flow [2022-11-18 20:07:13,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:07:13,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 20:07:13,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 597 transitions. [2022-11-18 20:07:13,639 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9270186335403726 [2022-11-18 20:07:13,639 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 597 transitions. [2022-11-18 20:07:13,639 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 597 transitions. [2022-11-18 20:07:13,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:07:13,640 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 597 transitions. [2022-11-18 20:07:13,642 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 149.25) internal successors, (597), 4 states have internal predecessors, (597), 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) [2022-11-18 20:07:13,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 161.0) internal successors, (805), 5 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:13,647 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 161.0) internal successors, (805), 5 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:13,647 INFO L175 Difference]: Start difference. First operand has 166 places, 158 transitions, 363 flow. Second operand 4 states and 597 transitions. [2022-11-18 20:07:13,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 181 transitions, 533 flow [2022-11-18 20:07:13,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 181 transitions, 528 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:07:13,657 INFO L231 Difference]: Finished difference. Result has 170 places, 166 transitions, 461 flow [2022-11-18 20:07:13,659 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=461, PETRI_PLACES=170, PETRI_TRANSITIONS=166} [2022-11-18 20:07:13,660 INFO L288 CegarLoopForPetriNet]: 168 programPoint places, 2 predicate places. [2022-11-18 20:07:13,660 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 166 transitions, 461 flow [2022-11-18 20:07:13,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 137.5) internal successors, (550), 4 states have internal predecessors, (550), 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) [2022-11-18 20:07:13,661 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:07:13,661 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:07:13,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:07:13,662 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-18 20:07:13,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:13,667 INFO L85 PathProgramCache]: Analyzing trace with hash -481312111, now seen corresponding path program 1 times [2022-11-18 20:07:13,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:07:13,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746265242] [2022-11-18 20:07:13,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:07:13,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:07:13,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:13,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:07:13,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:07:13,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746265242] [2022-11-18 20:07:13,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746265242] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:07:13,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:07:13,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:07:13,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72013685] [2022-11-18 20:07:13,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:07:13,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:07:13,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:07:13,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:07:13,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:07:13,979 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 161 [2022-11-18 20:07:13,980 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 166 transitions, 461 flow. Second operand has 4 states, 4 states have (on average 137.5) internal successors, (550), 4 states have internal predecessors, (550), 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) [2022-11-18 20:07:13,981 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:07:13,981 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 161 [2022-11-18 20:07:13,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:07:14,440 INFO L130 PetriNetUnfolder]: 513/1305 cut-off events. [2022-11-18 20:07:14,441 INFO L131 PetriNetUnfolder]: For 634/634 co-relation queries the response was YES. [2022-11-18 20:07:14,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3169 conditions, 1305 events. 513/1305 cut-off events. For 634/634 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 8436 event pairs, 60 based on Foata normal form. 253/1382 useless extension candidates. Maximal degree in co-relation 3088. Up to 755 conditions per place. [2022-11-18 20:07:14,456 INFO L137 encePairwiseOnDemand]: 152/161 looper letters, 29 selfloop transitions, 5 changer transitions 0/166 dead transitions. [2022-11-18 20:07:14,456 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 166 transitions, 495 flow [2022-11-18 20:07:14,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:07:14,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 20:07:14,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 578 transitions. [2022-11-18 20:07:14,459 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8975155279503105 [2022-11-18 20:07:14,459 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 578 transitions. [2022-11-18 20:07:14,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 578 transitions. [2022-11-18 20:07:14,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:07:14,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 578 transitions. [2022-11-18 20:07:14,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 144.5) internal successors, (578), 4 states have internal predecessors, (578), 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) [2022-11-18 20:07:14,463 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 161.0) internal successors, (805), 5 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:14,464 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 161.0) internal successors, (805), 5 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:14,464 INFO L175 Difference]: Start difference. First operand has 170 places, 166 transitions, 461 flow. Second operand 4 states and 578 transitions. [2022-11-18 20:07:14,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 166 transitions, 495 flow [2022-11-18 20:07:14,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 166 transitions, 472 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-11-18 20:07:14,475 INFO L231 Difference]: Finished difference. Result has 166 places, 158 transitions, 392 flow [2022-11-18 20:07:14,476 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=392, PETRI_PLACES=166, PETRI_TRANSITIONS=158} [2022-11-18 20:07:14,477 INFO L288 CegarLoopForPetriNet]: 168 programPoint places, -2 predicate places. [2022-11-18 20:07:14,477 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 158 transitions, 392 flow [2022-11-18 20:07:14,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 137.5) internal successors, (550), 4 states have internal predecessors, (550), 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) [2022-11-18 20:07:14,478 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:07:14,478 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:07:14,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:07:14,479 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-18 20:07:14,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:14,480 INFO L85 PathProgramCache]: Analyzing trace with hash 545332869, now seen corresponding path program 1 times [2022-11-18 20:07:14,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:07:14,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117137616] [2022-11-18 20:07:14,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:07:14,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:07:14,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:14,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:07:14,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:07:14,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117137616] [2022-11-18 20:07:14,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117137616] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:07:14,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:07:14,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:07:14,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713201780] [2022-11-18 20:07:14,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:07:14,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:07:14,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:07:14,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:07:14,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:07:14,657 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 161 [2022-11-18 20:07:14,658 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 158 transitions, 392 flow. Second operand has 5 states, 5 states have (on average 137.6) internal successors, (688), 5 states have internal predecessors, (688), 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) [2022-11-18 20:07:14,659 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:07:14,659 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 161 [2022-11-18 20:07:14,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:07:15,041 INFO L130 PetriNetUnfolder]: 342/1011 cut-off events. [2022-11-18 20:07:15,041 INFO L131 PetriNetUnfolder]: For 417/417 co-relation queries the response was YES. [2022-11-18 20:07:15,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2085 conditions, 1011 events. 342/1011 cut-off events. For 417/417 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 6041 event pairs, 16 based on Foata normal form. 0/960 useless extension candidates. Maximal degree in co-relation 2005. Up to 222 conditions per place. [2022-11-18 20:07:15,051 INFO L137 encePairwiseOnDemand]: 152/161 looper letters, 34 selfloop transitions, 13 changer transitions 4/183 dead transitions. [2022-11-18 20:07:15,051 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 183 transitions, 572 flow [2022-11-18 20:07:15,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:07:15,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:07:15,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 735 transitions. [2022-11-18 20:07:15,058 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9130434782608695 [2022-11-18 20:07:15,059 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 735 transitions. [2022-11-18 20:07:15,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 735 transitions. [2022-11-18 20:07:15,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:07:15,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 735 transitions. [2022-11-18 20:07:15,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 147.0) internal successors, (735), 5 states have internal predecessors, (735), 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) [2022-11-18 20:07:15,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 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) [2022-11-18 20:07:15,067 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 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) [2022-11-18 20:07:15,067 INFO L175 Difference]: Start difference. First operand has 166 places, 158 transitions, 392 flow. Second operand 5 states and 735 transitions. [2022-11-18 20:07:15,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 183 transitions, 572 flow [2022-11-18 20:07:15,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 183 transitions, 566 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:07:15,078 INFO L231 Difference]: Finished difference. Result has 169 places, 158 transitions, 428 flow [2022-11-18 20:07:15,079 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=428, PETRI_PLACES=169, PETRI_TRANSITIONS=158} [2022-11-18 20:07:15,080 INFO L288 CegarLoopForPetriNet]: 168 programPoint places, 1 predicate places. [2022-11-18 20:07:15,081 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 158 transitions, 428 flow [2022-11-18 20:07:15,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 137.6) internal successors, (688), 5 states have internal predecessors, (688), 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) [2022-11-18 20:07:15,082 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:07:15,082 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:07:15,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:07:15,083 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-18 20:07:15,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:15,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1892281991, now seen corresponding path program 1 times [2022-11-18 20:07:15,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:07:15,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925942414] [2022-11-18 20:07:15,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:07:15,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:07:15,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:15,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:07:15,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:07:15,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925942414] [2022-11-18 20:07:15,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925942414] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:07:15,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:07:15,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:07:15,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771474043] [2022-11-18 20:07:15,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:07:15,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:07:15,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:07:15,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:07:15,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:07:15,385 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 161 [2022-11-18 20:07:15,387 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 158 transitions, 428 flow. Second operand has 6 states, 6 states have (on average 137.83333333333334) internal successors, (827), 6 states have internal predecessors, (827), 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) [2022-11-18 20:07:15,387 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:07:15,387 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 161 [2022-11-18 20:07:15,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:07:15,791 INFO L130 PetriNetUnfolder]: 315/956 cut-off events. [2022-11-18 20:07:15,791 INFO L131 PetriNetUnfolder]: For 531/531 co-relation queries the response was YES. [2022-11-18 20:07:15,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2241 conditions, 956 events. 315/956 cut-off events. For 531/531 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 5561 event pairs, 16 based on Foata normal form. 16/937 useless extension candidates. Maximal degree in co-relation 2160. Up to 191 conditions per place. [2022-11-18 20:07:15,798 INFO L137 encePairwiseOnDemand]: 152/161 looper letters, 0 selfloop transitions, 0 changer transitions 175/175 dead transitions. [2022-11-18 20:07:15,798 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 175 transitions, 536 flow [2022-11-18 20:07:15,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:07:15,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:07:15,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 863 transitions. [2022-11-18 20:07:15,802 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8933747412008282 [2022-11-18 20:07:15,802 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 863 transitions. [2022-11-18 20:07:15,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 863 transitions. [2022-11-18 20:07:15,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:07:15,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 863 transitions. [2022-11-18 20:07:15,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 143.83333333333334) internal successors, (863), 6 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:15,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 161.0) internal successors, (1127), 7 states have internal predecessors, (1127), 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) [2022-11-18 20:07:15,810 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 161.0) internal successors, (1127), 7 states have internal predecessors, (1127), 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) [2022-11-18 20:07:15,810 INFO L175 Difference]: Start difference. First operand has 169 places, 158 transitions, 428 flow. Second operand 6 states and 863 transitions. [2022-11-18 20:07:15,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 175 transitions, 536 flow [2022-11-18 20:07:15,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 175 transitions, 481 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-11-18 20:07:15,819 INFO L231 Difference]: Finished difference. Result has 164 places, 0 transitions, 0 flow [2022-11-18 20:07:15,820 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=164, PETRI_TRANSITIONS=0} [2022-11-18 20:07:15,820 INFO L288 CegarLoopForPetriNet]: 168 programPoint places, -4 predicate places. [2022-11-18 20:07:15,821 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 0 transitions, 0 flow [2022-11-18 20:07:15,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 137.83333333333334) internal successors, (827), 6 states have internal predecessors, (827), 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) [2022-11-18 20:07:15,824 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-11-18 20:07:15,825 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-11-18 20:07:15,825 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-11-18 20:07:15,826 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-11-18 20:07:15,826 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-11-18 20:07:15,826 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-11-18 20:07:15,827 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-11-18 20:07:15,827 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-11-18 20:07:15,827 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-11-18 20:07:15,828 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-11-18 20:07:15,828 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-11-18 20:07:15,828 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-11-18 20:07:15,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-11-18 20:07:15,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-11-18 20:07:15,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-11-18 20:07:15,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-11-18 20:07:15,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-11-18 20:07:15,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-11-18 20:07:15,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-11-18 20:07:15,831 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-11-18 20:07:15,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:07:15,832 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-18 20:07:15,839 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 20:07:15,839 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:07:15,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:07:15 BasicIcfg [2022-11-18 20:07:15,846 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:07:15,847 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:07:15,847 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:07:15,847 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:07:15,848 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:07:09" (3/4) ... [2022-11-18 20:07:15,851 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 20:07:15,857 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-18 20:07:15,858 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-18 20:07:15,858 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-18 20:07:15,858 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-11-18 20:07:15,864 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2022-11-18 20:07:15,864 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-18 20:07:15,865 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-18 20:07:15,865 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:07:15,945 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb154c9d-2f1e-46af-a1fc-ba02b1770aed/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:07:15,951 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:07:15,952 INFO L158 Benchmark]: Toolchain (without parser) took 9105.45ms. Allocated memory was 86.0MB in the beginning and 759.2MB in the end (delta: 673.2MB). Free memory was 52.0MB in the beginning and 623.7MB in the end (delta: -571.7MB). Peak memory consumption was 101.8MB. Max. memory is 16.1GB. [2022-11-18 20:07:15,952 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 86.0MB. Free memory was 39.5MB in the beginning and 39.4MB in the end (delta: 48.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:07:15,953 INFO L158 Benchmark]: CACSL2BoogieTranslator took 694.65ms. Allocated memory is still 86.0MB. Free memory was 51.8MB in the beginning and 47.7MB in the end (delta: 4.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:07:15,953 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.91ms. Allocated memory is still 86.0MB. Free memory was 47.7MB in the beginning and 45.0MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 20:07:15,953 INFO L158 Benchmark]: Boogie Preprocessor took 68.28ms. Allocated memory is still 86.0MB. Free memory was 45.0MB in the beginning and 42.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:07:15,954 INFO L158 Benchmark]: RCFGBuilder took 1336.71ms. Allocated memory was 86.0MB in the beginning and 111.1MB in the end (delta: 25.2MB). Free memory was 42.9MB in the beginning and 80.9MB in the end (delta: -38.0MB). Peak memory consumption was 40.5MB. Max. memory is 16.1GB. [2022-11-18 20:07:15,954 INFO L158 Benchmark]: TraceAbstraction took 6812.98ms. Allocated memory was 111.1MB in the beginning and 759.2MB in the end (delta: 648.0MB). Free memory was 80.9MB in the beginning and 627.9MB in the end (delta: -547.0MB). Peak memory consumption was 268.9MB. Max. memory is 16.1GB. [2022-11-18 20:07:15,955 INFO L158 Benchmark]: Witness Printer took 104.37ms. Allocated memory is still 759.2MB. Free memory was 626.8MB in the beginning and 623.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 20:07:15,958 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 86.0MB. Free memory was 39.5MB in the beginning and 39.4MB in the end (delta: 48.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 694.65ms. Allocated memory is still 86.0MB. Free memory was 51.8MB in the beginning and 47.7MB in the end (delta: 4.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.91ms. Allocated memory is still 86.0MB. Free memory was 47.7MB in the beginning and 45.0MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.28ms. Allocated memory is still 86.0MB. Free memory was 45.0MB in the beginning and 42.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1336.71ms. Allocated memory was 86.0MB in the beginning and 111.1MB in the end (delta: 25.2MB). Free memory was 42.9MB in the beginning and 80.9MB in the end (delta: -38.0MB). Peak memory consumption was 40.5MB. Max. memory is 16.1GB. * TraceAbstraction took 6812.98ms. Allocated memory was 111.1MB in the beginning and 759.2MB in the end (delta: 648.0MB). Free memory was 80.9MB in the beginning and 627.9MB in the end (delta: -547.0MB). Peak memory consumption was 268.9MB. Max. memory is 16.1GB. * Witness Printer took 104.37ms. Allocated memory is still 759.2MB. Free memory was 626.8MB in the beginning and 623.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 796]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 796]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 811]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 811]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 826]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 826]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 846]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 846]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 201 locations, 20 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: 6.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 100 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 100 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 253 IncrementalHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 17 mSDtfsCounter, 253 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=461occurred in iteration=2, InterpolantAutomatonStates: 22, 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, 1.2s InterpolantComputationTime, 443 NumberOfCodeBlocks, 443 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 438 ConstructedInterpolants, 0 QuantifiedInterpolants, 1064 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-18 20:07:15,984 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb154c9d-2f1e-46af-a1fc-ba02b1770aed/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE