./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b 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_410e46e6-ad15-46ee-9666-6b3b050d8b16/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410e46e6-ad15-46ee-9666-6b3b050d8b16/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_410e46e6-ad15-46ee-9666-6b3b050d8b16/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410e46e6-ad15-46ee-9666-6b3b050d8b16/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410e46e6-ad15-46ee-9666-6b3b050d8b16/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_410e46e6-ad15-46ee-9666-6b3b050d8b16/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 c328ca6a6071aea6db12d1e311bd2e5e22fce6c700c884e61df52925e139f834 --- 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 20:23:38,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:23:38,358 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:23:38,387 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:23:38,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:23:38,390 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:23:38,392 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:23:38,397 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:23:38,402 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:23:38,403 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:23:38,405 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:23:38,406 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:23:38,408 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:23:38,410 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:23:38,413 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:23:38,416 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:23:38,417 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:23:38,423 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:23:38,426 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:23:38,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:23:38,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:23:38,435 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:23:38,436 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:23:38,437 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:23:38,441 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:23:38,441 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:23:38,441 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:23:38,442 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:23:38,443 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:23:38,444 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:23:38,444 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:23:38,445 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:23:38,446 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:23:38,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:23:38,448 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:23:38,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:23:38,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:23:38,449 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:23:38,449 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:23:38,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:23:38,451 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:23:38,452 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410e46e6-ad15-46ee-9666-6b3b050d8b16/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 20:23:38,472 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:23:38,472 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:23:38,473 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:23:38,473 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:23:38,474 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:23:38,474 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:23:38,475 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:23:38,475 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:23:38,475 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:23:38,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:23:38,476 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:23:38,476 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:23:38,476 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:23:38,477 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:23:38,477 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:23:38,477 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:23:38,477 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:23:38,478 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:23:38,478 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:23:38,478 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:23:38,478 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:23:38,479 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:23:38,479 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:23:38,479 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:23:38,479 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:23:38,480 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:23:38,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:23:38,480 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:23:38,481 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:23:38,481 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:23:38,481 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:23:38,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:23:38,482 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:23:38,482 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:23:38,482 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:23:38,482 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_410e46e6-ad15-46ee-9666-6b3b050d8b16/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410e46e6-ad15-46ee-9666-6b3b050d8b16/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c328ca6a6071aea6db12d1e311bd2e5e22fce6c700c884e61df52925e139f834 [2022-11-18 20:23:38,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:23:38,793 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:23:38,796 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:23:38,797 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:23:38,798 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:23:38,800 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410e46e6-ad15-46ee-9666-6b3b050d8b16/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c [2022-11-18 20:23:38,873 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410e46e6-ad15-46ee-9666-6b3b050d8b16/bin/uautomizer-TMbwUNV5ro/data/f9e354211/795a9f42e41040b3b28dfcb6f300912f/FLAG425ec34d4 [2022-11-18 20:23:39,437 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:23:39,438 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410e46e6-ad15-46ee-9666-6b3b050d8b16/sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c [2022-11-18 20:23:39,450 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410e46e6-ad15-46ee-9666-6b3b050d8b16/bin/uautomizer-TMbwUNV5ro/data/f9e354211/795a9f42e41040b3b28dfcb6f300912f/FLAG425ec34d4 [2022-11-18 20:23:39,767 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410e46e6-ad15-46ee-9666-6b3b050d8b16/bin/uautomizer-TMbwUNV5ro/data/f9e354211/795a9f42e41040b3b28dfcb6f300912f [2022-11-18 20:23:39,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:23:39,774 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:23:39,778 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:23:39,778 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:23:39,785 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:23:39,786 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:23:39" (1/1) ... [2022-11-18 20:23:39,788 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65ce1639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:39, skipping insertion in model container [2022-11-18 20:23:39,789 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:23:39" (1/1) ... [2022-11-18 20:23:39,796 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:23:39,830 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:23:40,048 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_410e46e6-ad15-46ee-9666-6b3b050d8b16/sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c[2835,2848] [2022-11-18 20:23:40,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:23:40,065 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:23:40,090 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_410e46e6-ad15-46ee-9666-6b3b050d8b16/sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c[2835,2848] [2022-11-18 20:23:40,096 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:23:40,110 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:23:40,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:40 WrapperNode [2022-11-18 20:23:40,111 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:23:40,112 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:23:40,112 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:23:40,112 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:23:40,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:40" (1/1) ... [2022-11-18 20:23:40,129 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:40" (1/1) ... [2022-11-18 20:23:40,158 INFO L138 Inliner]: procedures = 25, calls = 58, calls flagged for inlining = 16, calls inlined = 28, statements flattened = 374 [2022-11-18 20:23:40,159 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:23:40,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:23:40,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:23:40,160 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:23:40,169 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:40" (1/1) ... [2022-11-18 20:23:40,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:40" (1/1) ... [2022-11-18 20:23:40,174 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:40" (1/1) ... [2022-11-18 20:23:40,174 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:40" (1/1) ... [2022-11-18 20:23:40,184 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:40" (1/1) ... [2022-11-18 20:23:40,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:40" (1/1) ... [2022-11-18 20:23:40,191 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:40" (1/1) ... [2022-11-18 20:23:40,193 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:40" (1/1) ... [2022-11-18 20:23:40,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:23:40,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:23:40,198 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:23:40,198 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:23:40,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:40" (1/1) ... [2022-11-18 20:23:40,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:23:40,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410e46e6-ad15-46ee-9666-6b3b050d8b16/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:23:40,241 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410e46e6-ad15-46ee-9666-6b3b050d8b16/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:23:40,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410e46e6-ad15-46ee-9666-6b3b050d8b16/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:23:40,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:23:40,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:23:40,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:23:40,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:23:40,283 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 20:23:40,285 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 20:23:40,286 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 20:23:40,286 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 20:23:40,287 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 20:23:40,287 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 20:23:40,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:23:40,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 20:23:40,288 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 20:23:40,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:23:40,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:23:40,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:23:40,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:23:40,291 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 20:23:40,499 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:23:40,501 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:23:41,246 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:23:43,222 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:23:43,222 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-18 20:23:43,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:23:43 BoogieIcfgContainer [2022-11-18 20:23:43,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:23:43,227 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:23:43,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:23:43,231 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:23:43,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:23:39" (1/3) ... [2022-11-18 20:23:43,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1abc9291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:23:43, skipping insertion in model container [2022-11-18 20:23:43,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:40" (2/3) ... [2022-11-18 20:23:43,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1abc9291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:23:43, skipping insertion in model container [2022-11-18 20:23:43,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:23:43" (3/3) ... [2022-11-18 20:23:43,233 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum.wvr.c [2022-11-18 20:23:43,243 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:23:43,253 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:23:43,253 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 46 error locations. [2022-11-18 20:23:43,254 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:23:43,770 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-18 20:23:43,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 245 places, 251 transitions, 526 flow [2022-11-18 20:23:44,018 INFO L130 PetriNetUnfolder]: 16/248 cut-off events. [2022-11-18 20:23:44,018 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 20:23:44,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261 conditions, 248 events. 16/248 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 398 event pairs, 0 based on Foata normal form. 0/186 useless extension candidates. Maximal degree in co-relation 194. Up to 2 conditions per place. [2022-11-18 20:23:44,026 INFO L82 GeneralOperation]: Start removeDead. Operand has 245 places, 251 transitions, 526 flow [2022-11-18 20:23:44,040 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 222 places, 227 transitions, 469 flow [2022-11-18 20:23:44,050 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:23:44,057 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;@491158f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:23:44,057 INFO L358 AbstractCegarLoop]: Starting to check reachability of 91 error locations. [2022-11-18 20:23:44,067 INFO L130 PetriNetUnfolder]: 3/63 cut-off events. [2022-11-18 20:23:44,068 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:23:44,081 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:23:44,082 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] [2022-11-18 20:23:44,083 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-11-18 20:23:44,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:44,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1654529998, now seen corresponding path program 1 times [2022-11-18 20:23:44,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:44,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140767102] [2022-11-18 20:23:44,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:44,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:44,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:44,544 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 20:23:44,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:44,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140767102] [2022-11-18 20:23:44,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140767102] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:44,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:44,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:23:44,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643568294] [2022-11-18 20:23:44,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:44,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:23:44,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:44,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:23:44,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:23:44,606 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 251 [2022-11-18 20:23:44,613 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 227 transitions, 469 flow. Second operand has 4 states, 4 states have (on average 171.5) internal successors, (686), 4 states have internal predecessors, (686), 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 20:23:44,614 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:23:44,614 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 251 [2022-11-18 20:23:44,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:23:52,842 INFO L130 PetriNetUnfolder]: 4437/8173 cut-off events. [2022-11-18 20:23:52,843 INFO L131 PetriNetUnfolder]: For 1024/1038 co-relation queries the response was YES. [2022-11-18 20:23:52,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14539 conditions, 8173 events. 4437/8173 cut-off events. For 1024/1038 co-relation queries the response was YES. Maximal size of possible extension queue 598. Compared 59604 event pairs, 2142 based on Foata normal form. 638/3369 useless extension candidates. Maximal degree in co-relation 7013. Up to 2896 conditions per place. [2022-11-18 20:23:52,942 INFO L137 encePairwiseOnDemand]: 210/251 looper letters, 84 selfloop transitions, 9 changer transitions 5/242 dead transitions. [2022-11-18 20:23:52,942 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 242 transitions, 700 flow [2022-11-18 20:23:52,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:23:52,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:23:52,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 999 transitions. [2022-11-18 20:23:52,966 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7960159362549801 [2022-11-18 20:23:52,966 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 999 transitions. [2022-11-18 20:23:52,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 999 transitions. [2022-11-18 20:23:52,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:23:52,973 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 999 transitions. [2022-11-18 20:23:52,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 199.8) internal successors, (999), 5 states have internal predecessors, (999), 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 20:23:52,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 251.0) internal successors, (1506), 6 states have internal predecessors, (1506), 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 20:23:52,991 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 251.0) internal successors, (1506), 6 states have internal predecessors, (1506), 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 20:23:52,993 INFO L175 Difference]: Start difference. First operand has 222 places, 227 transitions, 469 flow. Second operand 5 states and 999 transitions. [2022-11-18 20:23:52,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 242 transitions, 700 flow [2022-11-18 20:23:53,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 242 transitions, 682 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:23:53,014 INFO L231 Difference]: Finished difference. Result has 206 places, 201 transitions, 461 flow [2022-11-18 20:23:53,016 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=251, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=461, PETRI_PLACES=206, PETRI_TRANSITIONS=201} [2022-11-18 20:23:53,020 INFO L288 CegarLoopForPetriNet]: 222 programPoint places, -16 predicate places. [2022-11-18 20:23:53,021 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 201 transitions, 461 flow [2022-11-18 20:23:53,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 171.5) internal successors, (686), 4 states have internal predecessors, (686), 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 20:23:53,022 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:23:53,023 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:23:53,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:23:53,024 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-11-18 20:23:53,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:53,025 INFO L85 PathProgramCache]: Analyzing trace with hash -457926940, now seen corresponding path program 1 times [2022-11-18 20:23:53,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:53,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225991078] [2022-11-18 20:23:53,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:53,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:53,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:53,275 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:53,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:53,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225991078] [2022-11-18 20:23:53,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225991078] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:23:53,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522871335] [2022-11-18 20:23:53,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:53,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:23:53,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410e46e6-ad15-46ee-9666-6b3b050d8b16/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:23:53,282 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410e46e6-ad15-46ee-9666-6b3b050d8b16/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:23:53,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410e46e6-ad15-46ee-9666-6b3b050d8b16/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:23:53,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:53,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:23:53,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:53,967 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:53,967 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:23:54,040 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:54,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522871335] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:23:54,041 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:23:54,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-18 20:23:54,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453890308] [2022-11-18 20:23:54,043 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:23:54,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 20:23:54,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:54,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 20:23:54,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:23:54,048 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 251 [2022-11-18 20:23:54,051 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 201 transitions, 461 flow. Second operand has 12 states, 12 states have (on average 172.66666666666666) internal successors, (2072), 12 states have internal predecessors, (2072), 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 20:23:54,051 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:23:54,051 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 251 [2022-11-18 20:23:54,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:24:09,301 INFO L130 PetriNetUnfolder]: 11091/20318 cut-off events. [2022-11-18 20:24:09,301 INFO L131 PetriNetUnfolder]: For 747/782 co-relation queries the response was YES. [2022-11-18 20:24:09,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35507 conditions, 20318 events. 11091/20318 cut-off events. For 747/782 co-relation queries the response was YES. Maximal size of possible extension queue 656. Compared 159401 event pairs, 5355 based on Foata normal form. 6/6744 useless extension candidates. Maximal degree in co-relation 28204. Up to 2889 conditions per place. [2022-11-18 20:24:09,457 INFO L137 encePairwiseOnDemand]: 236/251 looper letters, 186 selfloop transitions, 40 changer transitions 0/370 dead transitions. [2022-11-18 20:24:09,457 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 370 transitions, 1325 flow [2022-11-18 20:24:09,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-18 20:24:09,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-18 20:24:09,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3292 transitions. [2022-11-18 20:24:09,465 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7286409915891987 [2022-11-18 20:24:09,465 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3292 transitions. [2022-11-18 20:24:09,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3292 transitions. [2022-11-18 20:24:09,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:24:09,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3292 transitions. [2022-11-18 20:24:09,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 182.88888888888889) internal successors, (3292), 18 states have internal predecessors, (3292), 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 20:24:09,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 251.0) internal successors, (4769), 19 states have internal predecessors, (4769), 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 20:24:09,487 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 251.0) internal successors, (4769), 19 states have internal predecessors, (4769), 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 20:24:09,487 INFO L175 Difference]: Start difference. First operand has 206 places, 201 transitions, 461 flow. Second operand 18 states and 3292 transitions. [2022-11-18 20:24:09,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 370 transitions, 1325 flow [2022-11-18 20:24:09,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 370 transitions, 1320 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:24:09,499 INFO L231 Difference]: Finished difference. Result has 221 places, 228 transitions, 694 flow [2022-11-18 20:24:09,499 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=251, PETRI_DIFFERENCE_MINUEND_FLOW=456, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=694, PETRI_PLACES=221, PETRI_TRANSITIONS=228} [2022-11-18 20:24:09,500 INFO L288 CegarLoopForPetriNet]: 222 programPoint places, -1 predicate places. [2022-11-18 20:24:09,500 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 228 transitions, 694 flow [2022-11-18 20:24:09,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 172.66666666666666) internal successors, (2072), 12 states have internal predecessors, (2072), 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 20:24:09,503 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:24:09,503 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:24:09,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410e46e6-ad15-46ee-9666-6b3b050d8b16/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:24:09,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410e46e6-ad15-46ee-9666-6b3b050d8b16/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:24:09,721 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-11-18 20:24:09,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:24:09,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1310831756, now seen corresponding path program 1 times [2022-11-18 20:24:09,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:24:09,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727823620] [2022-11-18 20:24:09,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:24:09,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:24:09,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:09,912 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:24:09,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:24:09,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727823620] [2022-11-18 20:24:09,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727823620] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:24:09,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429352512] [2022-11-18 20:24:09,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:24:09,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:24:09,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410e46e6-ad15-46ee-9666-6b3b050d8b16/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:24:09,915 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410e46e6-ad15-46ee-9666-6b3b050d8b16/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:24:09,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410e46e6-ad15-46ee-9666-6b3b050d8b16/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:24:10,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:10,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:24:10,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:24:10,451 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:24:10,452 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:24:10,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1429352512] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:24:10,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:24:10,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-18 20:24:10,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814200965] [2022-11-18 20:24:10,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:24:10,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:24:10,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:24:10,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:24:10,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:24:10,456 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 251 [2022-11-18 20:24:10,457 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 228 transitions, 694 flow. Second operand has 6 states, 6 states have (on average 172.33333333333334) internal successors, (1034), 6 states have internal predecessors, (1034), 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 20:24:10,457 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:24:10,457 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 251 [2022-11-18 20:24:10,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand