./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe018_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_f12521e7-fd07-470d-8b0f-a3e20996459a/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12521e7-fd07-470d-8b0f-a3e20996459a/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12521e7-fd07-470d-8b0f-a3e20996459a/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12521e7-fd07-470d-8b0f-a3e20996459a/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe018_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12521e7-fd07-470d-8b0f-a3e20996459a/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12521e7-fd07-470d-8b0f-a3e20996459a/bin/uautomizer-vX5HgA9Q3a --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 6f413b41672ef8cb3f594e0d22a82a07ab4d735f8bfa69fff7e94198d51bd0eb --- 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-b5237d8 [2022-11-21 09:07:55,553 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 09:07:55,555 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 09:07:55,574 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 09:07:55,575 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 09:07:55,576 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 09:07:55,577 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 09:07:55,579 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 09:07:55,581 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 09:07:55,582 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 09:07:55,583 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 09:07:55,584 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 09:07:55,584 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 09:07:55,586 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 09:07:55,587 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 09:07:55,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 09:07:55,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 09:07:55,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 09:07:55,592 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 09:07:55,594 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 09:07:55,596 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 09:07:55,597 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 09:07:55,599 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 09:07:55,600 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 09:07:55,603 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 09:07:55,604 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 09:07:55,604 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 09:07:55,605 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 09:07:55,606 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 09:07:55,607 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 09:07:55,608 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 09:07:55,609 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 09:07:55,609 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 09:07:55,610 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 09:07:55,611 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 09:07:55,612 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 09:07:55,613 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 09:07:55,613 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 09:07:55,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 09:07:55,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 09:07:55,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 09:07:55,617 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12521e7-fd07-470d-8b0f-a3e20996459a/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-21 09:07:55,638 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 09:07:55,639 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 09:07:55,639 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 09:07:55,639 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 09:07:55,640 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 09:07:55,640 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 09:07:55,641 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 09:07:55,641 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 09:07:55,641 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 09:07:55,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 09:07:55,642 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 09:07:55,642 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 09:07:55,642 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 09:07:55,642 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 09:07:55,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 09:07:55,643 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 09:07:55,643 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 09:07:55,643 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 09:07:55,644 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 09:07:55,644 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 09:07:55,644 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 09:07:55,644 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 09:07:55,644 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 09:07:55,645 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 09:07:55,645 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 09:07:55,645 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 09:07:55,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:07:55,646 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 09:07:55,646 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 09:07:55,646 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 09:07:55,646 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 09:07:55,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 09:07:55,647 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 09:07:55,647 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 09:07:55,647 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 09:07:55,647 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_f12521e7-fd07-470d-8b0f-a3e20996459a/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12521e7-fd07-470d-8b0f-a3e20996459a/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f413b41672ef8cb3f594e0d22a82a07ab4d735f8bfa69fff7e94198d51bd0eb [2022-11-21 09:07:56,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 09:07:56,050 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 09:07:56,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 09:07:56,054 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 09:07:56,057 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 09:07:56,058 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12521e7-fd07-470d-8b0f-a3e20996459a/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/pthread-wmm/safe018_rmo.oepc.i [2022-11-21 09:07:59,104 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 09:07:59,387 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 09:07:59,387 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12521e7-fd07-470d-8b0f-a3e20996459a/sv-benchmarks/c/pthread-wmm/safe018_rmo.oepc.i [2022-11-21 09:07:59,401 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12521e7-fd07-470d-8b0f-a3e20996459a/bin/uautomizer-vX5HgA9Q3a/data/a8c85c5f6/404fa23196f448e586d5f1f5c850a16a/FLAG0410bd9f4 [2022-11-21 09:07:59,463 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12521e7-fd07-470d-8b0f-a3e20996459a/bin/uautomizer-vX5HgA9Q3a/data/a8c85c5f6/404fa23196f448e586d5f1f5c850a16a [2022-11-21 09:07:59,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 09:07:59,485 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 09:07:59,490 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 09:07:59,490 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 09:07:59,501 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 09:07:59,502 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:07:59" (1/1) ... [2022-11-21 09:07:59,503 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@229a3cde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:07:59, skipping insertion in model container [2022-11-21 09:07:59,503 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:07:59" (1/1) ... [2022-11-21 09:07:59,510 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 09:07:59,544 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 09:07:59,735 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_f12521e7-fd07-470d-8b0f-a3e20996459a/sv-benchmarks/c/pthread-wmm/safe018_rmo.oepc.i[993,1006] [2022-11-21 09:07:59,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:07:59,935 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 09:07:59,952 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_f12521e7-fd07-470d-8b0f-a3e20996459a/sv-benchmarks/c/pthread-wmm/safe018_rmo.oepc.i[993,1006] [2022-11-21 09:08:00,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:08:00,086 INFO L208 MainTranslator]: Completed translation [2022-11-21 09:08:00,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:00 WrapperNode [2022-11-21 09:08:00,087 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 09:08:00,088 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 09:08:00,088 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 09:08:00,089 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 09:08:00,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:00" (1/1) ... [2022-11-21 09:08:00,134 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:00" (1/1) ... [2022-11-21 09:08:00,183 INFO L138 Inliner]: procedures = 176, calls = 65, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 136 [2022-11-21 09:08:00,184 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 09:08:00,184 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 09:08:00,185 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 09:08:00,185 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 09:08:00,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:00" (1/1) ... [2022-11-21 09:08:00,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:00" (1/1) ... [2022-11-21 09:08:00,213 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:00" (1/1) ... [2022-11-21 09:08:00,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:00" (1/1) ... [2022-11-21 09:08:00,221 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:00" (1/1) ... [2022-11-21 09:08:00,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:00" (1/1) ... [2022-11-21 09:08:00,242 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:00" (1/1) ... [2022-11-21 09:08:00,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:00" (1/1) ... [2022-11-21 09:08:00,247 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 09:08:00,248 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 09:08:00,248 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 09:08:00,248 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 09:08:00,249 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:00" (1/1) ... [2022-11-21 09:08:00,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:08:00,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12521e7-fd07-470d-8b0f-a3e20996459a/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:08:00,302 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12521e7-fd07-470d-8b0f-a3e20996459a/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 09:08:00,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12521e7-fd07-470d-8b0f-a3e20996459a/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 09:08:00,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 09:08:00,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 09:08:00,360 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 09:08:00,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 09:08:00,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 09:08:00,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 09:08:00,363 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-21 09:08:00,363 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-21 09:08:00,363 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-21 09:08:00,364 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-21 09:08:00,364 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-21 09:08:00,364 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-21 09:08:00,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 09:08:00,364 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 09:08:00,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 09:08:00,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 09:08:00,366 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 09:08:00,626 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 09:08:00,628 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 09:08:01,154 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 09:08:01,525 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 09:08:01,526 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 09:08:01,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:08:01 BoogieIcfgContainer [2022-11-21 09:08:01,528 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 09:08:01,532 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 09:08:01,532 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 09:08:01,536 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 09:08:01,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:07:59" (1/3) ... [2022-11-21 09:08:01,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a629e6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:08:01, skipping insertion in model container [2022-11-21 09:08:01,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:00" (2/3) ... [2022-11-21 09:08:01,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a629e6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:08:01, skipping insertion in model container [2022-11-21 09:08:01,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:08:01" (3/3) ... [2022-11-21 09:08:01,541 INFO L112 eAbstractionObserver]: Analyzing ICFG safe018_rmo.oepc.i [2022-11-21 09:08:01,552 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 09:08:01,564 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 09:08:01,564 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-21 09:08:01,565 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 09:08:01,651 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 09:08:01,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 143 places, 135 transitions, 285 flow [2022-11-21 09:08:01,810 INFO L130 PetriNetUnfolder]: 2/132 cut-off events. [2022-11-21 09:08:01,811 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 09:08:01,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 132 events. 2/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2022-11-21 09:08:01,818 INFO L82 GeneralOperation]: Start removeDead. Operand has 143 places, 135 transitions, 285 flow [2022-11-21 09:08:01,831 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 140 places, 132 transitions, 273 flow [2022-11-21 09:08:01,855 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 09:08:01,864 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;@453c3d5b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 09:08:01,865 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-21 09:08:01,913 INFO L130 PetriNetUnfolder]: 0/68 cut-off events. [2022-11-21 09:08:01,913 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 09:08:01,913 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:08:01,914 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] [2022-11-21 09:08:01,915 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-21 09:08:01,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:08:01,923 INFO L85 PathProgramCache]: Analyzing trace with hash 688131846, now seen corresponding path program 1 times [2022-11-21 09:08:01,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:08:01,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421614132] [2022-11-21 09:08:01,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:08:01,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:08:02,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:08:02,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:08:02,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:08:02,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421614132] [2022-11-21 09:08:02,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421614132] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:08:02,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:08:02,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:08:02,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883744743] [2022-11-21 09:08:02,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:08:02,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:08:02,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:08:02,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:08:02,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:08:02,478 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 135 [2022-11-21 09:08:02,482 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 132 transitions, 273 flow. Second operand has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 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) [2022-11-21 09:08:02,482 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:08:02,482 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 135 [2022-11-21 09:08:02,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:08:02,969 INFO L130 PetriNetUnfolder]: 370/1643 cut-off events. [2022-11-21 09:08:02,970 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-21 09:08:02,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2284 conditions, 1643 events. 370/1643 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 12846 event pairs, 227 based on Foata normal form. 70/1395 useless extension candidates. Maximal degree in co-relation 2213. Up to 573 conditions per place. [2022-11-21 09:08:02,989 INFO L137 encePairwiseOnDemand]: 123/135 looper letters, 24 selfloop transitions, 4 changer transitions 0/139 dead transitions. [2022-11-21 09:08:02,989 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 139 transitions, 349 flow [2022-11-21 09:08:02,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:08:02,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:08:03,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 380 transitions. [2022-11-21 09:08:03,010 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9382716049382716 [2022-11-21 09:08:03,010 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 380 transitions. [2022-11-21 09:08:03,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 380 transitions. [2022-11-21 09:08:03,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:08:03,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 380 transitions. [2022-11-21 09:08:03,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 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) [2022-11-21 09:08:03,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 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) [2022-11-21 09:08:03,031 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 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) [2022-11-21 09:08:03,033 INFO L175 Difference]: Start difference. First operand has 140 places, 132 transitions, 273 flow. Second operand 3 states and 380 transitions. [2022-11-21 09:08:03,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 139 transitions, 349 flow [2022-11-21 09:08:03,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 139 transitions, 344 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-21 09:08:03,046 INFO L231 Difference]: Finished difference. Result has 139 places, 132 transitions, 300 flow [2022-11-21 09:08:03,048 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=300, PETRI_PLACES=139, PETRI_TRANSITIONS=132} [2022-11-21 09:08:03,054 INFO L288 CegarLoopForPetriNet]: 140 programPoint places, -1 predicate places. [2022-11-21 09:08:03,054 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 132 transitions, 300 flow [2022-11-21 09:08:03,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 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) [2022-11-21 09:08:03,055 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:08:03,055 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] [2022-11-21 09:08:03,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 09:08:03,055 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-21 09:08:03,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:08:03,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1295211740, now seen corresponding path program 1 times [2022-11-21 09:08:03,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:08:03,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852759730] [2022-11-21 09:08:03,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:08:03,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:08:03,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:08:03,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:08:03,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:08:03,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852759730] [2022-11-21 09:08:03,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852759730] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:08:03,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:08:03,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 09:08:03,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150526153] [2022-11-21 09:08:03,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:08:03,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 09:08:03,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:08:03,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 09:08:03,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 09:08:03,273 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 135 [2022-11-21 09:08:03,274 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 132 transitions, 300 flow. Second operand has 4 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 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) [2022-11-21 09:08:03,274 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:08:03,274 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 135 [2022-11-21 09:08:03,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:08:03,567 INFO L130 PetriNetUnfolder]: 232/1067 cut-off events. [2022-11-21 09:08:03,567 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-11-21 09:08:03,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1740 conditions, 1067 events. 232/1067 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 7206 event pairs, 82 based on Foata normal form. 0/913 useless extension candidates. Maximal degree in co-relation 1669. Up to 233 conditions per place. [2022-11-21 09:08:03,577 INFO L137 encePairwiseOnDemand]: 125/135 looper letters, 27 selfloop transitions, 10 changer transitions 3/151 dead transitions. [2022-11-21 09:08:03,578 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 151 transitions, 436 flow [2022-11-21 09:08:03,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 09:08:03,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-21 09:08:03,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 499 transitions. [2022-11-21 09:08:03,581 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.924074074074074 [2022-11-21 09:08:03,581 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 499 transitions. [2022-11-21 09:08:03,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 499 transitions. [2022-11-21 09:08:03,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:08:03,582 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 499 transitions. [2022-11-21 09:08:03,584 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 124.75) internal successors, (499), 4 states have internal predecessors, (499), 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) [2022-11-21 09:08:03,587 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 135.0) internal successors, (675), 5 states have internal predecessors, (675), 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) [2022-11-21 09:08:03,587 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 135.0) internal successors, (675), 5 states have internal predecessors, (675), 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) [2022-11-21 09:08:03,587 INFO L175 Difference]: Start difference. First operand has 139 places, 132 transitions, 300 flow. Second operand 4 states and 499 transitions. [2022-11-21 09:08:03,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 151 transitions, 436 flow [2022-11-21 09:08:03,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 151 transitions, 432 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 09:08:03,596 INFO L231 Difference]: Finished difference. Result has 143 places, 135 transitions, 356 flow [2022-11-21 09:08:03,596 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=356, PETRI_PLACES=143, PETRI_TRANSITIONS=135} [2022-11-21 09:08:03,597 INFO L288 CegarLoopForPetriNet]: 140 programPoint places, 3 predicate places. [2022-11-21 09:08:03,598 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 135 transitions, 356 flow [2022-11-21 09:08:03,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 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) [2022-11-21 09:08:03,598 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:08:03,599 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] [2022-11-21 09:08:03,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 09:08:03,599 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-21 09:08:03,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:08:03,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1340020261, now seen corresponding path program 1 times [2022-11-21 09:08:03,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:08:03,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594715920] [2022-11-21 09:08:03,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:08:03,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:08:03,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:08:03,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:08:03,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:08:03,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594715920] [2022-11-21 09:08:03,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594715920] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:08:03,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:08:03,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 09:08:03,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954195328] [2022-11-21 09:08:03,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:08:03,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 09:08:03,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:08:03,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 09:08:03,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 09:08:03,870 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 135 [2022-11-21 09:08:03,871 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 135 transitions, 356 flow. Second operand has 4 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 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) [2022-11-21 09:08:03,871 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:08:03,871 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 135 [2022-11-21 09:08:03,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:08:04,080 INFO L130 PetriNetUnfolder]: 122/747 cut-off events. [2022-11-21 09:08:04,080 INFO L131 PetriNetUnfolder]: For 533/533 co-relation queries the response was YES. [2022-11-21 09:08:04,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1209 conditions, 747 events. 122/747 cut-off events. For 533/533 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4343 event pairs, 53 based on Foata normal form. 54/757 useless extension candidates. Maximal degree in co-relation 1135. Up to 176 conditions per place. [2022-11-21 09:08:04,086 INFO L137 encePairwiseOnDemand]: 128/135 looper letters, 21 selfloop transitions, 4 changer transitions 0/136 dead transitions. [2022-11-21 09:08:04,086 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 136 transitions, 382 flow [2022-11-21 09:08:04,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 09:08:04,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-21 09:08:04,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 484 transitions. [2022-11-21 09:08:04,089 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8962962962962963 [2022-11-21 09:08:04,089 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 484 transitions. [2022-11-21 09:08:04,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 484 transitions. [2022-11-21 09:08:04,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:08:04,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 484 transitions. [2022-11-21 09:08:04,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 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) [2022-11-21 09:08:04,092 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 135.0) internal successors, (675), 5 states have internal predecessors, (675), 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) [2022-11-21 09:08:04,093 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 135.0) internal successors, (675), 5 states have internal predecessors, (675), 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) [2022-11-21 09:08:04,093 INFO L175 Difference]: Start difference. First operand has 143 places, 135 transitions, 356 flow. Second operand 4 states and 484 transitions. [2022-11-21 09:08:04,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 136 transitions, 382 flow [2022-11-21 09:08:04,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 136 transitions, 364 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-11-21 09:08:04,101 INFO L231 Difference]: Finished difference. Result has 140 places, 129 transitions, 304 flow [2022-11-21 09:08:04,101 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=304, PETRI_PLACES=140, PETRI_TRANSITIONS=129} [2022-11-21 09:08:04,103 INFO L288 CegarLoopForPetriNet]: 140 programPoint places, 0 predicate places. [2022-11-21 09:08:04,103 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 129 transitions, 304 flow [2022-11-21 09:08:04,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 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) [2022-11-21 09:08:04,103 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:08:04,104 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] [2022-11-21 09:08:04,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 09:08:04,105 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-21 09:08:04,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:08:04,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1560965313, now seen corresponding path program 1 times [2022-11-21 09:08:04,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:08:04,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196557294] [2022-11-21 09:08:04,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:08:04,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:08:04,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:08:04,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:08:04,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:08:04,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196557294] [2022-11-21 09:08:04,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196557294] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:08:04,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:08:04,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 09:08:04,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449290810] [2022-11-21 09:08:04,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:08:04,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 09:08:04,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:08:04,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 09:08:04,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:08:04,357 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 135 [2022-11-21 09:08:04,368 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 129 transitions, 304 flow. Second operand has 5 states, 5 states have (on average 115.8) internal successors, (579), 5 states have internal predecessors, (579), 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) [2022-11-21 09:08:04,369 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:08:04,369 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 135 [2022-11-21 09:08:04,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:08:04,544 INFO L130 PetriNetUnfolder]: 113/480 cut-off events. [2022-11-21 09:08:04,544 INFO L131 PetriNetUnfolder]: For 228/228 co-relation queries the response was YES. [2022-11-21 09:08:04,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 848 conditions, 480 events. 113/480 cut-off events. For 228/228 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2260 event pairs, 15 based on Foata normal form. 12/470 useless extension candidates. Maximal degree in co-relation 775. Up to 89 conditions per place. [2022-11-21 09:08:04,547 INFO L137 encePairwiseOnDemand]: 128/135 looper letters, 0 selfloop transitions, 0 changer transitions 139/139 dead transitions. [2022-11-21 09:08:04,547 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 139 transitions, 374 flow [2022-11-21 09:08:04,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 09:08:04,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-21 09:08:04,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 601 transitions. [2022-11-21 09:08:04,550 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8903703703703704 [2022-11-21 09:08:04,550 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 601 transitions. [2022-11-21 09:08:04,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 601 transitions. [2022-11-21 09:08:04,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:08:04,551 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 601 transitions. [2022-11-21 09:08:04,553 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 120.2) internal successors, (601), 5 states have internal predecessors, (601), 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) [2022-11-21 09:08:04,555 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 135.0) internal successors, (810), 6 states have internal predecessors, (810), 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) [2022-11-21 09:08:04,556 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 135.0) internal successors, (810), 6 states have internal predecessors, (810), 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) [2022-11-21 09:08:04,556 INFO L175 Difference]: Start difference. First operand has 140 places, 129 transitions, 304 flow. Second operand 5 states and 601 transitions. [2022-11-21 09:08:04,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 139 transitions, 374 flow [2022-11-21 09:08:04,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 139 transitions, 359 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 09:08:04,559 INFO L231 Difference]: Finished difference. Result has 137 places, 0 transitions, 0 flow [2022-11-21 09:08:04,559 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=137, PETRI_TRANSITIONS=0} [2022-11-21 09:08:04,560 INFO L288 CegarLoopForPetriNet]: 140 programPoint places, -3 predicate places. [2022-11-21 09:08:04,560 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 0 transitions, 0 flow [2022-11-21 09:08:04,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 115.8) internal successors, (579), 5 states have internal predecessors, (579), 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) [2022-11-21 09:08:04,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-11-21 09:08:04,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-11-21 09:08:04,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-11-21 09:08:04,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-11-21 09:08:04,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-11-21 09:08:04,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-11-21 09:08:04,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-11-21 09:08:04,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-11-21 09:08:04,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-11-21 09:08:04,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-11-21 09:08:04,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-11-21 09:08:04,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-11-21 09:08:04,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-11-21 09:08:04,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-11-21 09:08:04,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-11-21 09:08:04,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 09:08:04,569 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-21 09:08:04,575 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 09:08:04,575 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 09:08:04,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 09:08:04 BasicIcfg [2022-11-21 09:08:04,583 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 09:08:04,585 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 09:08:04,585 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 09:08:04,586 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 09:08:04,586 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:08:01" (3/4) ... [2022-11-21 09:08:04,589 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 09:08:04,595 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-21 09:08:04,595 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-21 09:08:04,595 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-21 09:08:04,605 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2022-11-21 09:08:04,605 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-21 09:08:04,605 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 09:08:04,606 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 09:08:04,666 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12521e7-fd07-470d-8b0f-a3e20996459a/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 09:08:04,666 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 09:08:04,666 INFO L158 Benchmark]: Toolchain (without parser) took 5181.64ms. Allocated memory was 136.3MB in the beginning and 201.3MB in the end (delta: 65.0MB). Free memory was 109.2MB in the beginning and 123.7MB in the end (delta: -14.5MB). Peak memory consumption was 49.3MB. Max. memory is 16.1GB. [2022-11-21 09:08:04,667 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 136.3MB. Free memory is still 104.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 09:08:04,667 INFO L158 Benchmark]: CACSL2BoogieTranslator took 597.65ms. Allocated memory is still 136.3MB. Free memory was 108.9MB in the beginning and 86.3MB in the end (delta: 22.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-21 09:08:04,667 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.67ms. Allocated memory is still 136.3MB. Free memory was 86.3MB in the beginning and 83.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 09:08:04,667 INFO L158 Benchmark]: Boogie Preprocessor took 62.76ms. Allocated memory is still 136.3MB. Free memory was 83.8MB in the beginning and 81.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 09:08:04,668 INFO L158 Benchmark]: RCFGBuilder took 1280.57ms. Allocated memory was 136.3MB in the beginning and 167.8MB in the end (delta: 31.5MB). Free memory was 81.9MB in the beginning and 107.6MB in the end (delta: -25.7MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2022-11-21 09:08:04,668 INFO L158 Benchmark]: TraceAbstraction took 3051.85ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 106.8MB in the beginning and 127.9MB in the end (delta: -21.1MB). Peak memory consumption was 89.1MB. Max. memory is 16.1GB. [2022-11-21 09:08:04,668 INFO L158 Benchmark]: Witness Printer took 80.60ms. Allocated memory is still 201.3MB. Free memory was 126.8MB in the beginning and 123.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 09:08:04,671 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 136.3MB. Free memory is still 104.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 597.65ms. Allocated memory is still 136.3MB. Free memory was 108.9MB in the beginning and 86.3MB in the end (delta: 22.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.67ms. Allocated memory is still 136.3MB. Free memory was 86.3MB in the beginning and 83.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.76ms. Allocated memory is still 136.3MB. Free memory was 83.8MB in the beginning and 81.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1280.57ms. Allocated memory was 136.3MB in the beginning and 167.8MB in the end (delta: 31.5MB). Free memory was 81.9MB in the beginning and 107.6MB in the end (delta: -25.7MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3051.85ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 106.8MB in the beginning and 127.9MB in the end (delta: -21.1MB). Peak memory consumption was 89.1MB. Max. memory is 16.1GB. * Witness Printer took 80.60ms. Allocated memory is still 201.3MB. Free memory was 126.8MB in the beginning and 123.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 784]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 784]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 796]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 796]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 816]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 816]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 164 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 63 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 63 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 152 IncrementalHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 10 mSDtfsCounter, 152 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=356occurred in iteration=2, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 306 NumberOfCodeBlocks, 306 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 302 ConstructedInterpolants, 0 QuantifiedInterpolants, 842 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-21 09:08:04,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12521e7-fd07-470d-8b0f-a3e20996459a/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE