./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f666d5b-49fb-4225-9490-f970fe464f6f/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f666d5b-49fb-4225-9490-f970fe464f6f/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f666d5b-49fb-4225-9490-f970fe464f6f/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f666d5b-49fb-4225-9490-f970fe464f6f/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f666d5b-49fb-4225-9490-f970fe464f6f/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f666d5b-49fb-4225-9490-f970fe464f6f/bin/uautomizer-ug76WZFUDN --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 7b8a2d8a35be535b4f8c573d98b12278b19043c6b0cec82927e2ac6d7dd36ebb --- 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-6b4ec56 [2022-11-20 11:27:05,137 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:27:05,140 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:27:05,166 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:27:05,167 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:27:05,169 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:27:05,170 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:27:05,173 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:27:05,175 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:27:05,176 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:27:05,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:27:05,179 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:27:05,179 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:27:05,181 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:27:05,182 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:27:05,184 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:27:05,185 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:27:05,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:27:05,189 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:27:05,192 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:27:05,194 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:27:05,196 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:27:05,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:27:05,199 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:27:05,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:27:05,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:27:05,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:27:05,206 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:27:05,207 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:27:05,209 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:27:05,209 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:27:05,211 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:27:05,212 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:27:05,213 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:27:05,215 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:27:05,215 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:27:05,216 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:27:05,217 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:27:05,217 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:27:05,219 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:27:05,220 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:27:05,227 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f666d5b-49fb-4225-9490-f970fe464f6f/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 11:27:05,278 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:27:05,279 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:27:05,280 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:27:05,280 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:27:05,281 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:27:05,282 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:27:05,283 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:27:05,283 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:27:05,284 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:27:05,284 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:27:05,285 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:27:05,286 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:27:05,286 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:27:05,286 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:27:05,286 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:27:05,287 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:27:05,287 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:27:05,287 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:27:05,287 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 11:27:05,288 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:27:05,288 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:27:05,288 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:27:05,289 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:27:05,289 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:27:05,289 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:27:05,290 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:27:05,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:27:05,290 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:27:05,291 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:27:05,291 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:27:05,292 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:27:05,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:27:05,292 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:27:05,293 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:27:05,293 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:27:05,293 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_2f666d5b-49fb-4225-9490-f970fe464f6f/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f666d5b-49fb-4225-9490-f970fe464f6f/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b8a2d8a35be535b4f8c573d98b12278b19043c6b0cec82927e2ac6d7dd36ebb [2022-11-20 11:27:05,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:27:05,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:27:05,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:27:05,703 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:27:05,704 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:27:05,705 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f666d5b-49fb-4225-9490-f970fe464f6f/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i [2022-11-20 11:27:09,324 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:27:09,805 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:27:09,806 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f666d5b-49fb-4225-9490-f970fe464f6f/sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i [2022-11-20 11:27:09,832 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f666d5b-49fb-4225-9490-f970fe464f6f/bin/uautomizer-ug76WZFUDN/data/16c0ff319/cd6ec3859c0742b1bcf8fe2998f83b95/FLAG0d2b17d78 [2022-11-20 11:27:09,855 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f666d5b-49fb-4225-9490-f970fe464f6f/bin/uautomizer-ug76WZFUDN/data/16c0ff319/cd6ec3859c0742b1bcf8fe2998f83b95 [2022-11-20 11:27:09,858 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:27:09,863 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:27:09,868 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:27:09,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:27:09,874 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:27:09,875 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:27:09" (1/1) ... [2022-11-20 11:27:09,878 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bb2049 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:27:09, skipping insertion in model container [2022-11-20 11:27:09,878 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:27:09" (1/1) ... [2022-11-20 11:27:09,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:27:09,960 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:27:10,201 WARN L237 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_2f666d5b-49fb-4225-9490-f970fe464f6f/sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i[1107,1120] [2022-11-20 11:27:10,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:27:10,445 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:27:10,463 WARN L237 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_2f666d5b-49fb-4225-9490-f970fe464f6f/sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i[1107,1120] [2022-11-20 11:27:10,528 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:27:10,580 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:27:10,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:27:10 WrapperNode [2022-11-20 11:27:10,581 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:27:10,583 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:27:10,583 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:27:10,583 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:27:10,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:27:10" (1/1) ... [2022-11-20 11:27:10,608 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:27:10" (1/1) ... [2022-11-20 11:27:10,644 INFO L138 Inliner]: procedures = 163, calls = 38, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 113 [2022-11-20 11:27:10,644 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:27:10,646 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:27:10,646 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:27:10,646 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:27:10,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:27:10" (1/1) ... [2022-11-20 11:27:10,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:27:10" (1/1) ... [2022-11-20 11:27:10,680 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:27:10" (1/1) ... [2022-11-20 11:27:10,681 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:27:10" (1/1) ... [2022-11-20 11:27:10,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:27:10" (1/1) ... [2022-11-20 11:27:10,690 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:27:10" (1/1) ... [2022-11-20 11:27:10,698 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:27:10" (1/1) ... [2022-11-20 11:27:10,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:27:10" (1/1) ... [2022-11-20 11:27:10,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:27:10,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:27:10,704 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:27:10,704 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:27:10,705 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:27:10" (1/1) ... [2022-11-20 11:27:10,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:27:10,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f666d5b-49fb-4225-9490-f970fe464f6f/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:27:10,745 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f666d5b-49fb-4225-9490-f970fe464f6f/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:27:10,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f666d5b-49fb-4225-9490-f970fe464f6f/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:27:10,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:27:10,843 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 11:27:10,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:27:10,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:27:10,844 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 11:27:10,844 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 11:27:10,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:27:10,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:27:10,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:27:10,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:27:10,846 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 11:27:11,105 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:27:11,111 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:27:11,446 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:27:11,456 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:27:11,456 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:27:11,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:27:11 BoogieIcfgContainer [2022-11-20 11:27:11,459 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:27:11,462 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:27:11,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:27:11,467 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:27:11,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:27:09" (1/3) ... [2022-11-20 11:27:11,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40c2c3a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:27:11, skipping insertion in model container [2022-11-20 11:27:11,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:27:10" (2/3) ... [2022-11-20 11:27:11,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40c2c3a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:27:11, skipping insertion in model container [2022-11-20 11:27:11,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:27:11" (3/3) ... [2022-11-20 11:27:11,471 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true.i [2022-11-20 11:27:11,482 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:27:11,497 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:27:11,497 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-20 11:27:11,497 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:27:11,656 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 11:27:11,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 133 places, 134 transitions, 273 flow [2022-11-20 11:27:11,859 INFO L130 PetriNetUnfolder]: 4/137 cut-off events. [2022-11-20 11:27:11,860 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:27:11,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 137 events. 4/137 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 101 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 87. Up to 2 conditions per place. [2022-11-20 11:27:11,867 INFO L82 GeneralOperation]: Start removeDead. Operand has 133 places, 134 transitions, 273 flow [2022-11-20 11:27:11,881 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 132 places, 132 transitions, 267 flow [2022-11-20 11:27:11,910 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:27:11,920 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;@d1a159c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:27:11,920 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 11:27:11,953 INFO L130 PetriNetUnfolder]: 0/62 cut-off events. [2022-11-20 11:27:11,954 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:27:11,954 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:27:11,955 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] [2022-11-20 11:27:11,956 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 11:27:11,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:27:11,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1354117662, now seen corresponding path program 1 times [2022-11-20 11:27:11,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:27:11,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527738167] [2022-11-20 11:27:11,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:27:11,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:27:12,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:27:12,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:27:12,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:27:12,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527738167] [2022-11-20 11:27:12,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527738167] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:27:12,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:27:12,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:27:12,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842519942] [2022-11-20 11:27:12,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:27:12,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:27:12,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:27:12,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:27:12,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:27:12,657 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 134 [2022-11-20 11:27:12,662 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 132 transitions, 267 flow. Second operand has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 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) [2022-11-20 11:27:12,662 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:27:12,663 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 134 [2022-11-20 11:27:12,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:27:12,789 INFO L130 PetriNetUnfolder]: 1/125 cut-off events. [2022-11-20 11:27:12,789 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 11:27:12,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 125 events. 1/125 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 79 event pairs, 0 based on Foata normal form. 3/121 useless extension candidates. Maximal degree in co-relation 86. Up to 9 conditions per place. [2022-11-20 11:27:12,796 INFO L137 encePairwiseOnDemand]: 127/134 looper letters, 9 selfloop transitions, 3 changer transitions 0/125 dead transitions. [2022-11-20 11:27:12,797 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 125 transitions, 277 flow [2022-11-20 11:27:12,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:27:12,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 11:27:12,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 586 transitions. [2022-11-20 11:27:12,827 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8746268656716418 [2022-11-20 11:27:12,828 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 586 transitions. [2022-11-20 11:27:12,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 586 transitions. [2022-11-20 11:27:12,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:27:12,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 586 transitions. [2022-11-20 11:27:12,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 117.2) internal successors, (586), 5 states have internal predecessors, (586), 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) [2022-11-20 11:27:12,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 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) [2022-11-20 11:27:12,862 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 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) [2022-11-20 11:27:12,865 INFO L175 Difference]: Start difference. First operand has 132 places, 132 transitions, 267 flow. Second operand 5 states and 586 transitions. [2022-11-20 11:27:12,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 125 transitions, 277 flow [2022-11-20 11:27:12,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 125 transitions, 276 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:27:12,877 INFO L231 Difference]: Finished difference. Result has 131 places, 125 transitions, 258 flow [2022-11-20 11:27:12,880 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=258, PETRI_PLACES=131, PETRI_TRANSITIONS=125} [2022-11-20 11:27:12,886 INFO L288 CegarLoopForPetriNet]: 132 programPoint places, -1 predicate places. [2022-11-20 11:27:12,886 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 125 transitions, 258 flow [2022-11-20 11:27:12,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 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) [2022-11-20 11:27:12,887 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:27:12,888 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] [2022-11-20 11:27:12,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:27:12,889 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 11:27:12,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:27:12,891 INFO L85 PathProgramCache]: Analyzing trace with hash 972025753, now seen corresponding path program 1 times [2022-11-20 11:27:12,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:27:12,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73610239] [2022-11-20 11:27:12,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:27:12,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:27:12,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:27:13,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:27:13,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:27:13,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73610239] [2022-11-20 11:27:13,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73610239] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:27:13,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:27:13,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:27:13,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742081054] [2022-11-20 11:27:13,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:27:13,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:27:13,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:27:13,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:27:13,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:27:13,094 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 134 [2022-11-20 11:27:13,095 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 125 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 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) [2022-11-20 11:27:13,095 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:27:13,096 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 134 [2022-11-20 11:27:13,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:27:13,175 INFO L130 PetriNetUnfolder]: 1/124 cut-off events. [2022-11-20 11:27:13,181 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:27:13,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 124 events. 1/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 74 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 94. Up to 7 conditions per place. [2022-11-20 11:27:13,183 INFO L137 encePairwiseOnDemand]: 132/134 looper letters, 8 selfloop transitions, 1 changer transitions 17/124 dead transitions. [2022-11-20 11:27:13,183 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 124 transitions, 274 flow [2022-11-20 11:27:13,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:27:13,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:27:13,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 358 transitions. [2022-11-20 11:27:13,186 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8905472636815921 [2022-11-20 11:27:13,187 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 358 transitions. [2022-11-20 11:27:13,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 358 transitions. [2022-11-20 11:27:13,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:27:13,188 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 358 transitions. [2022-11-20 11:27:13,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 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) [2022-11-20 11:27:13,191 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 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) [2022-11-20 11:27:13,191 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 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) [2022-11-20 11:27:13,191 INFO L175 Difference]: Start difference. First operand has 131 places, 125 transitions, 258 flow. Second operand 3 states and 358 transitions. [2022-11-20 11:27:13,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 124 transitions, 274 flow [2022-11-20 11:27:13,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 124 transitions, 269 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-20 11:27:13,198 INFO L231 Difference]: Finished difference. Result has 129 places, 107 transitions, 219 flow [2022-11-20 11:27:13,198 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=219, PETRI_PLACES=129, PETRI_TRANSITIONS=107} [2022-11-20 11:27:13,199 INFO L288 CegarLoopForPetriNet]: 132 programPoint places, -3 predicate places. [2022-11-20 11:27:13,199 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 107 transitions, 219 flow [2022-11-20 11:27:13,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 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) [2022-11-20 11:27:13,200 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:27:13,201 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] [2022-11-20 11:27:13,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:27:13,202 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 11:27:13,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:27:13,202 INFO L85 PathProgramCache]: Analyzing trace with hash 164858241, now seen corresponding path program 1 times [2022-11-20 11:27:13,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:27:13,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456036403] [2022-11-20 11:27:13,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:27:13,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:27:13,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:27:13,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:27:13,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:27:13,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456036403] [2022-11-20 11:27:13,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456036403] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:27:13,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:27:13,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:27:13,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900653179] [2022-11-20 11:27:13,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:27:13,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:27:13,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:27:13,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:27:13,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:27:13,503 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 134 [2022-11-20 11:27:13,504 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 107 transitions, 219 flow. Second operand has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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) [2022-11-20 11:27:13,504 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:27:13,504 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 134 [2022-11-20 11:27:13,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:27:13,664 INFO L130 PetriNetUnfolder]: 5/250 cut-off events. [2022-11-20 11:27:13,664 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:27:13,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283 conditions, 250 events. 5/250 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 687 event pairs, 0 based on Foata normal form. 2/250 useless extension candidates. Maximal degree in co-relation 239. Up to 12 conditions per place. [2022-11-20 11:27:13,666 INFO L137 encePairwiseOnDemand]: 129/134 looper letters, 11 selfloop transitions, 2 changer transitions 8/117 dead transitions. [2022-11-20 11:27:13,667 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 117 transitions, 281 flow [2022-11-20 11:27:13,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:27:13,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 11:27:13,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 590 transitions. [2022-11-20 11:27:13,670 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8805970149253731 [2022-11-20 11:27:13,670 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 590 transitions. [2022-11-20 11:27:13,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 590 transitions. [2022-11-20 11:27:13,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:27:13,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 590 transitions. [2022-11-20 11:27:13,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 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) [2022-11-20 11:27:13,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 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) [2022-11-20 11:27:13,676 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 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) [2022-11-20 11:27:13,676 INFO L175 Difference]: Start difference. First operand has 129 places, 107 transitions, 219 flow. Second operand 5 states and 590 transitions. [2022-11-20 11:27:13,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 117 transitions, 281 flow [2022-11-20 11:27:13,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 117 transitions, 280 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:27:13,680 INFO L231 Difference]: Finished difference. Result has 119 places, 107 transitions, 234 flow [2022-11-20 11:27:13,681 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=234, PETRI_PLACES=119, PETRI_TRANSITIONS=107} [2022-11-20 11:27:13,682 INFO L288 CegarLoopForPetriNet]: 132 programPoint places, -13 predicate places. [2022-11-20 11:27:13,682 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 107 transitions, 234 flow [2022-11-20 11:27:13,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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) [2022-11-20 11:27:13,683 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:27:13,683 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] [2022-11-20 11:27:13,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:27:13,683 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 11:27:13,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:27:13,684 INFO L85 PathProgramCache]: Analyzing trace with hash 377779523, now seen corresponding path program 1 times [2022-11-20 11:27:13,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:27:13,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991446313] [2022-11-20 11:27:13,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:27:13,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:27:13,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:27:14,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:27:14,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:27:14,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991446313] [2022-11-20 11:27:14,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991446313] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:27:14,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:27:14,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:27:14,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569118673] [2022-11-20 11:27:14,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:27:14,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:27:14,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:27:14,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:27:14,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:27:14,184 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 134 [2022-11-20 11:27:14,186 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 107 transitions, 234 flow. Second operand has 6 states, 6 states have (on average 104.16666666666667) internal successors, (625), 6 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:27:14,186 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:27:14,186 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 134 [2022-11-20 11:27:14,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:27:14,410 INFO L130 PetriNetUnfolder]: 17/262 cut-off events. [2022-11-20 11:27:14,411 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-11-20 11:27:14,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 369 conditions, 262 events. 17/262 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 816 event pairs, 6 based on Foata normal form. 6/267 useless extension candidates. Maximal degree in co-relation 333. Up to 31 conditions per place. [2022-11-20 11:27:14,416 INFO L137 encePairwiseOnDemand]: 126/134 looper letters, 23 selfloop transitions, 8 changer transitions 1/114 dead transitions. [2022-11-20 11:27:14,417 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 114 transitions, 312 flow [2022-11-20 11:27:14,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:27:14,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 11:27:14,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 540 transitions. [2022-11-20 11:27:14,420 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8059701492537313 [2022-11-20 11:27:14,421 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 540 transitions. [2022-11-20 11:27:14,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 540 transitions. [2022-11-20 11:27:14,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:27:14,422 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 540 transitions. [2022-11-20 11:27:14,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 108.0) internal successors, (540), 5 states have internal predecessors, (540), 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) [2022-11-20 11:27:14,427 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 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) [2022-11-20 11:27:14,432 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 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) [2022-11-20 11:27:14,432 INFO L175 Difference]: Start difference. First operand has 119 places, 107 transitions, 234 flow. Second operand 5 states and 540 transitions. [2022-11-20 11:27:14,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 114 transitions, 312 flow [2022-11-20 11:27:14,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 114 transitions, 300 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-11-20 11:27:14,442 INFO L231 Difference]: Finished difference. Result has 118 places, 108 transitions, 248 flow [2022-11-20 11:27:14,442 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=248, PETRI_PLACES=118, PETRI_TRANSITIONS=108} [2022-11-20 11:27:14,444 INFO L288 CegarLoopForPetriNet]: 132 programPoint places, -14 predicate places. [2022-11-20 11:27:14,445 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 108 transitions, 248 flow [2022-11-20 11:27:14,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 104.16666666666667) internal successors, (625), 6 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:27:14,448 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:27:14,448 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] [2022-11-20 11:27:14,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:27:14,450 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 11:27:14,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:27:14,451 INFO L85 PathProgramCache]: Analyzing trace with hash -610222729, now seen corresponding path program 1 times [2022-11-20 11:27:14,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:27:14,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758996210] [2022-11-20 11:27:14,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:27:14,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:27:14,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:27:14,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:27:14,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:27:14,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758996210] [2022-11-20 11:27:14,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758996210] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:27:14,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:27:14,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:27:14,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793089955] [2022-11-20 11:27:14,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:27:14,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:27:14,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:27:14,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:27:14,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:27:14,845 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 134 [2022-11-20 11:27:14,847 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 108 transitions, 248 flow. Second operand has 6 states, 6 states have (on average 104.33333333333333) internal successors, (626), 6 states have internal predecessors, (626), 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) [2022-11-20 11:27:14,848 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:27:14,848 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 134 [2022-11-20 11:27:14,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:27:15,037 INFO L130 PetriNetUnfolder]: 15/236 cut-off events. [2022-11-20 11:27:15,037 INFO L131 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2022-11-20 11:27:15,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 342 conditions, 236 events. 15/236 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 651 event pairs, 6 based on Foata normal form. 2/233 useless extension candidates. Maximal degree in co-relation 283. Up to 32 conditions per place. [2022-11-20 11:27:15,039 INFO L137 encePairwiseOnDemand]: 127/134 looper letters, 24 selfloop transitions, 7 changer transitions 0/113 dead transitions. [2022-11-20 11:27:15,039 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 113 transitions, 326 flow [2022-11-20 11:27:15,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:27:15,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 11:27:15,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 536 transitions. [2022-11-20 11:27:15,044 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8 [2022-11-20 11:27:15,044 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 536 transitions. [2022-11-20 11:27:15,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 536 transitions. [2022-11-20 11:27:15,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:27:15,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 536 transitions. [2022-11-20 11:27:15,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 107.2) internal successors, (536), 5 states have internal predecessors, (536), 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) [2022-11-20 11:27:15,049 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 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) [2022-11-20 11:27:15,050 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 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) [2022-11-20 11:27:15,050 INFO L175 Difference]: Start difference. First operand has 118 places, 108 transitions, 248 flow. Second operand 5 states and 536 transitions. [2022-11-20 11:27:15,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 113 transitions, 326 flow [2022-11-20 11:27:15,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 113 transitions, 323 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:27:15,055 INFO L231 Difference]: Finished difference. Result has 121 places, 110 transitions, 275 flow [2022-11-20 11:27:15,056 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=275, PETRI_PLACES=121, PETRI_TRANSITIONS=110} [2022-11-20 11:27:15,056 INFO L288 CegarLoopForPetriNet]: 132 programPoint places, -11 predicate places. [2022-11-20 11:27:15,057 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 110 transitions, 275 flow [2022-11-20 11:27:15,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 104.33333333333333) internal successors, (626), 6 states have internal predecessors, (626), 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) [2022-11-20 11:27:15,057 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:27:15,059 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] [2022-11-20 11:27:15,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:27:15,060 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 11:27:15,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:27:15,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1610125980, now seen corresponding path program 1 times [2022-11-20 11:27:15,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:27:15,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61242021] [2022-11-20 11:27:15,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:27:15,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:27:15,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:27:15,137 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:27:15,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:27:15,216 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:27:15,216 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 11:27:15,217 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2022-11-20 11:27:15,220 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2022-11-20 11:27:15,220 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 7 remaining) [2022-11-20 11:27:15,221 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2022-11-20 11:27:15,221 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2022-11-20 11:27:15,221 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2022-11-20 11:27:15,222 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2022-11-20 11:27:15,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:27:15,222 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-20 11:27:15,232 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 11:27:15,232 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:27:15,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:27:15 BasicIcfg [2022-11-20 11:27:15,352 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:27:15,353 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:27:15,353 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:27:15,354 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:27:15,354 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:27:11" (3/4) ... [2022-11-20 11:27:15,356 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-20 11:27:15,492 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f666d5b-49fb-4225-9490-f970fe464f6f/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:27:15,492 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:27:15,493 INFO L158 Benchmark]: Toolchain (without parser) took 5630.26ms. Allocated memory was 161.5MB in the beginning and 239.1MB in the end (delta: 77.6MB). Free memory was 126.7MB in the beginning and 202.7MB in the end (delta: -76.0MB). Peak memory consumption was 111.4MB. Max. memory is 16.1GB. [2022-11-20 11:27:15,493 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 161.5MB. Free memory is still 104.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:27:15,494 INFO L158 Benchmark]: CACSL2BoogieTranslator took 713.68ms. Allocated memory is still 161.5MB. Free memory was 126.1MB in the beginning and 107.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 11:27:15,494 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.98ms. Allocated memory is still 161.5MB. Free memory was 107.2MB in the beginning and 105.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:27:15,495 INFO L158 Benchmark]: Boogie Preprocessor took 57.49ms. Allocated memory is still 161.5MB. Free memory was 105.0MB in the beginning and 103.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:27:15,495 INFO L158 Benchmark]: RCFGBuilder took 755.65ms. Allocated memory is still 161.5MB. Free memory was 103.0MB in the beginning and 87.5MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 11:27:15,496 INFO L158 Benchmark]: TraceAbstraction took 3890.13ms. Allocated memory was 161.5MB in the beginning and 199.2MB in the end (delta: 37.7MB). Free memory was 86.9MB in the beginning and 66.3MB in the end (delta: 20.6MB). Peak memory consumption was 59.0MB. Max. memory is 16.1GB. [2022-11-20 11:27:15,496 INFO L158 Benchmark]: Witness Printer took 139.26ms. Allocated memory was 199.2MB in the beginning and 239.1MB in the end (delta: 39.8MB). Free memory was 66.3MB in the beginning and 202.7MB in the end (delta: -136.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 11:27:15,498 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 161.5MB. Free memory is still 104.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 713.68ms. Allocated memory is still 161.5MB. Free memory was 126.1MB in the beginning and 107.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.98ms. Allocated memory is still 161.5MB. Free memory was 107.2MB in the beginning and 105.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.49ms. Allocated memory is still 161.5MB. Free memory was 105.0MB in the beginning and 103.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 755.65ms. Allocated memory is still 161.5MB. Free memory was 103.0MB in the beginning and 87.5MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3890.13ms. Allocated memory was 161.5MB in the beginning and 199.2MB in the end (delta: 37.7MB). Free memory was 86.9MB in the beginning and 66.3MB in the end (delta: 20.6MB). Peak memory consumption was 59.0MB. Max. memory is 16.1GB. * Witness Printer took 139.26ms. Allocated memory was 199.2MB in the beginning and 239.1MB in the end (delta: 39.8MB). Free memory was 66.3MB in the beginning and 202.7MB in the end (delta: -136.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 701]: integer overflow possible integer overflow possible We found a FailurePath: [L682] 0 int g = 0; VAL [g=0] [L683] 0 int h = 0; VAL [g=0, h=0] [L684] 0 int i = 0; VAL [g=0, h=0, i=0] [L685] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [A={3:0}, g=0, h=0, i=0] [L686] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [A={3:0}, B={4:0}, g=0, h=0, i=0] [L687] 0 pthread_mutex_t C = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [A={3:0}, B={4:0}, C={5:0}, g=0, h=0, i=0] [L710] 0 int x = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=2147483617, A={3:0}, B={4:0}, C={5:0}, g=0, h=0, i=0, x=2147483617] [L711] COND TRUE 0 x > -1000 VAL [A={3:0}, B={4:0}, C={5:0}, g=0, h=0, i=0, x=2147483617] [L712] 0 pthread_t id; VAL [A={3:0}, B={4:0}, C={5:0}, g=0, h=0, i=0, id={6:0}, x=2147483617] [L713] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, B={4:0}, C={5:0}, g=0, h=0, i=0, id={6:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x=2147483617] [L689] 1 int x = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, A={3:0}, arg={0:0}, arg={0:0}, B={4:0}, C={5:0}, g=0, h=0, i=0, x=0] [L690] 1 int y = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, A={3:0}, arg={0:0}, arg={0:0}, B={4:0}, C={5:0}, g=0, h=0, i=0, x=0, y=0] [L691] 1 int z = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, A={3:0}, arg={0:0}, arg={0:0}, B={4:0}, C={5:0}, g=0, h=0, i=0, x=0, y=0, z=0] [L692] COND TRUE 1 x < 1000 VAL [A={3:0}, arg={0:0}, arg={0:0}, B={4:0}, C={5:0}, g=0, h=0, i=0, x=0, y=0, z=0] [L716] 0 i = 11 VAL [A={3:0}, B={4:0}, C={5:0}, g=0, h=0, i=11, id={6:0}, x=2147483617] [L717] 0 g = x VAL [A={3:0}, B={4:0}, C={5:0}, g=2147483617, h=0, i=11, id={6:0}, x=2147483617] [L718] EXPR 0 x - 17 VAL [A={3:0}, B={4:0}, C={5:0}, g=2147483617, h=0, i=11, id={6:0}, x=2147483617] [L718] 0 h = x - 17 VAL [A={3:0}, B={4:0}, C={5:0}, g=2147483617, h=2147483600, i=11, id={6:0}, x=2147483617] [L721] 0 h = x VAL [A={3:0}, B={4:0}, C={5:0}, g=2147483617, h=2147483617, i=11, id={6:0}, x=2147483617] [L695] 1 x = g VAL [A={3:0}, arg={0:0}, arg={0:0}, B={4:0}, C={5:0}, g=2147483617, h=2147483617, i=11, x=2147483617, y=0, z=0] [L696] 1 y = h VAL [A={3:0}, arg={0:0}, arg={0:0}, B={4:0}, C={5:0}, g=2147483617, h=2147483617, i=11, x=2147483617, y=2147483617, z=0] [L697] CALL 1 __VERIFIER_assert(y <= x) [L19] COND FALSE 1 !(!(cond)) VAL [\old(cond)=1, A={3:0}, B={4:0}, C={5:0}, cond=1, g=2147483617, h=2147483617, i=11] [L697] RET 1 __VERIFIER_assert(y <= x) [L699] CALL 1 __VERIFIER_assert(x == y) [L19] COND FALSE 1 !(!(cond)) VAL [\old(cond)=1, A={3:0}, B={4:0}, C={5:0}, cond=1, g=2147483617, h=2147483617, i=11] [L699] RET 1 __VERIFIER_assert(x == y) [L701] 1 x + 31 VAL [A={3:0}, arg={0:0}, arg={0:0}, B={4:0}, C={5:0}, g=2147483617, h=2147483617, i=11, x=2147483617, y=2147483617, z=0] - UnprovableResult [Line: 718]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 186 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 78 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 78 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 187 IncrementalHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 23 mSDtfsCounter, 187 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=275occurred 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 458 NumberOfCodeBlocks, 458 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 358 ConstructedInterpolants, 0 QuantifiedInterpolants, 1090 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 RESULT: Ultimate proved your program to be incorrect! [2022-11-20 11:27:15,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f666d5b-49fb-4225-9490-f970fe464f6f/bin/uautomizer-ug76WZFUDN/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)