./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix040_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f 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_7371b2a1-f6e8-4b3f-863e-4102b03c59df/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7371b2a1-f6e8-4b3f-863e-4102b03c59df/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7371b2a1-f6e8-4b3f-863e-4102b03c59df/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7371b2a1-f6e8-4b3f-863e-4102b03c59df/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix040_tso.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7371b2a1-f6e8-4b3f-863e-4102b03c59df/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7371b2a1-f6e8-4b3f-863e-4102b03c59df/bin/uautomizer-tPACEb0tL8 --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 26c011a0e45020881b0eb90c07839ec48e6b26942e49028568b078c64e0cf722 --- 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-e04fb08 [2022-11-16 12:09:09,539 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:09:09,542 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:09:09,589 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:09:09,591 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:09:09,595 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:09:09,598 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:09:09,602 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:09:09,605 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:09:09,611 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:09:09,613 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:09:09,614 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:09:09,615 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:09:09,618 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:09:09,620 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:09:09,622 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:09:09,624 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:09:09,625 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:09:09,627 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:09:09,635 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:09:09,638 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:09:09,639 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:09:09,642 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:09:09,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:09:09,657 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:09:09,657 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:09:09,658 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:09:09,660 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:09:09,660 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:09:09,662 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:09:09,662 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:09:09,663 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:09:09,665 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:09:09,668 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:09:09,669 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:09:09,669 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:09:09,670 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:09:09,671 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:09:09,671 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:09:09,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:09:09,673 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:09:09,674 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7371b2a1-f6e8-4b3f-863e-4102b03c59df/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 12:09:09,718 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:09:09,718 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:09:09,719 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:09:09,719 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:09:09,721 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:09:09,721 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:09:09,722 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:09:09,722 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:09:09,722 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:09:09,723 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:09:09,724 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:09:09,724 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:09:09,725 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:09:09,725 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:09:09,725 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:09:09,726 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:09:09,726 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:09:09,726 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:09:09,727 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 12:09:09,727 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:09:09,727 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:09:09,728 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:09:09,728 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:09:09,728 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:09:09,729 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:09:09,729 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:09:09,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:09:09,730 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:09:09,730 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:09:09,730 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:09:09,731 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:09:09,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:09:09,732 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:09:09,732 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:09:09,732 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:09:09,733 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_7371b2a1-f6e8-4b3f-863e-4102b03c59df/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7371b2a1-f6e8-4b3f-863e-4102b03c59df/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26c011a0e45020881b0eb90c07839ec48e6b26942e49028568b078c64e0cf722 [2022-11-16 12:09:10,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:09:10,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:09:10,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:09:10,100 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:09:10,101 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:09:10,102 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7371b2a1-f6e8-4b3f-863e-4102b03c59df/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread-wmm/mix040_tso.oepc.i [2022-11-16 12:09:10,173 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7371b2a1-f6e8-4b3f-863e-4102b03c59df/bin/uautomizer-tPACEb0tL8/data/804f21871/6fe7e5de1f904111b4d1fa545dd0b74d/FLAG5655f040f [2022-11-16 12:09:10,773 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:09:10,774 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7371b2a1-f6e8-4b3f-863e-4102b03c59df/sv-benchmarks/c/pthread-wmm/mix040_tso.oepc.i [2022-11-16 12:09:10,788 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7371b2a1-f6e8-4b3f-863e-4102b03c59df/bin/uautomizer-tPACEb0tL8/data/804f21871/6fe7e5de1f904111b4d1fa545dd0b74d/FLAG5655f040f [2022-11-16 12:09:11,043 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7371b2a1-f6e8-4b3f-863e-4102b03c59df/bin/uautomizer-tPACEb0tL8/data/804f21871/6fe7e5de1f904111b4d1fa545dd0b74d [2022-11-16 12:09:11,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:09:11,051 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:09:11,054 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:09:11,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:09:11,058 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:09:11,058 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:09:11" (1/1) ... [2022-11-16 12:09:11,060 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6243e5b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:11, skipping insertion in model container [2022-11-16 12:09:11,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:09:11" (1/1) ... [2022-11-16 12:09:11,069 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:09:11,140 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:09:11,371 WARN L229 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_7371b2a1-f6e8-4b3f-863e-4102b03c59df/sv-benchmarks/c/pthread-wmm/mix040_tso.oepc.i[949,962] [2022-11-16 12:09:11,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:09:11,763 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:09:11,780 WARN L229 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_7371b2a1-f6e8-4b3f-863e-4102b03c59df/sv-benchmarks/c/pthread-wmm/mix040_tso.oepc.i[949,962] [2022-11-16 12:09:11,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:09:11,914 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:09:11,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:11 WrapperNode [2022-11-16 12:09:11,914 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:09:11,915 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:09:11,916 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:09:11,916 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:09:11,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:11" (1/1) ... [2022-11-16 12:09:11,952 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:11" (1/1) ... [2022-11-16 12:09:12,005 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 162 [2022-11-16 12:09:12,005 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:09:12,006 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:09:12,006 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:09:12,006 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:09:12,015 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:11" (1/1) ... [2022-11-16 12:09:12,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:11" (1/1) ... [2022-11-16 12:09:12,031 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:11" (1/1) ... [2022-11-16 12:09:12,031 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:11" (1/1) ... [2022-11-16 12:09:12,038 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:11" (1/1) ... [2022-11-16 12:09:12,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:11" (1/1) ... [2022-11-16 12:09:12,042 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:11" (1/1) ... [2022-11-16 12:09:12,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:11" (1/1) ... [2022-11-16 12:09:12,062 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:09:12,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:09:12,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:09:12,063 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:09:12,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:11" (1/1) ... [2022-11-16 12:09:12,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:09:12,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7371b2a1-f6e8-4b3f-863e-4102b03c59df/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:12,112 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7371b2a1-f6e8-4b3f-863e-4102b03c59df/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:12,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7371b2a1-f6e8-4b3f-863e-4102b03c59df/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:09:12,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:09:12,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 12:09:12,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:09:12,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:09:12,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:09:12,157 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-16 12:09:12,158 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-16 12:09:12,158 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-16 12:09:12,158 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-16 12:09:12,158 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-16 12:09:12,158 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-16 12:09:12,158 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-16 12:09:12,159 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-16 12:09:12,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:09:12,159 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 12:09:12,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:09:12,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:09:12,161 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:09:12,344 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:09:12,346 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:09:12,860 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:09:13,079 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:09:13,079 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:09:13,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:09:13 BoogieIcfgContainer [2022-11-16 12:09:13,082 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:09:13,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:09:13,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:09:13,089 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:09:13,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:09:11" (1/3) ... [2022-11-16 12:09:13,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36e30910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:09:13, skipping insertion in model container [2022-11-16 12:09:13,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:11" (2/3) ... [2022-11-16 12:09:13,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36e30910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:09:13, skipping insertion in model container [2022-11-16 12:09:13,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:09:13" (3/3) ... [2022-11-16 12:09:13,093 INFO L112 eAbstractionObserver]: Analyzing ICFG mix040_tso.oepc.i [2022-11-16 12:09:13,102 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:09:13,114 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:09:13,114 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-16 12:09:13,115 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:09:13,180 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 12:09:13,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 155 places, 144 transitions, 308 flow [2022-11-16 12:09:13,316 INFO L130 PetriNetUnfolder]: 2/140 cut-off events. [2022-11-16 12:09:13,316 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:09:13,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 140 events. 2/140 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 90 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 98. Up to 2 conditions per place. [2022-11-16 12:09:13,324 INFO L82 GeneralOperation]: Start removeDead. Operand has 155 places, 144 transitions, 308 flow [2022-11-16 12:09:13,331 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 151 places, 140 transitions, 292 flow [2022-11-16 12:09:13,341 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:09:13,348 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;@582ffc82, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:09:13,348 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-16 12:09:13,359 INFO L130 PetriNetUnfolder]: 0/55 cut-off events. [2022-11-16 12:09:13,360 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:09:13,360 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:09:13,361 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] [2022-11-16 12:09:13,361 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 12:09:13,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:13,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1359244369, now seen corresponding path program 1 times [2022-11-16 12:09:13,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:13,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906933949] [2022-11-16 12:09:13,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:13,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:13,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:13,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:09:13,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:09:13,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906933949] [2022-11-16 12:09:13,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906933949] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:09:13,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:09:13,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:09:13,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883168089] [2022-11-16 12:09:13,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:09:13,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:09:13,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:09:13,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:09:13,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:09:13,789 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 144 [2022-11-16 12:09:13,793 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 140 transitions, 292 flow. Second operand has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 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) [2022-11-16 12:09:13,793 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:09:13,793 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 144 [2022-11-16 12:09:13,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:09:15,531 INFO L130 PetriNetUnfolder]: 3757/6622 cut-off events. [2022-11-16 12:09:15,531 INFO L131 PetriNetUnfolder]: For 79/79 co-relation queries the response was YES. [2022-11-16 12:09:15,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12110 conditions, 6622 events. 3757/6622 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 464. Compared 51972 event pairs, 1224 based on Foata normal form. 474/4830 useless extension candidates. Maximal degree in co-relation 12052. Up to 5190 conditions per place. [2022-11-16 12:09:15,621 INFO L137 encePairwiseOnDemand]: 129/144 looper letters, 33 selfloop transitions, 5 changer transitions 0/151 dead transitions. [2022-11-16 12:09:15,621 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 151 transitions, 399 flow [2022-11-16 12:09:15,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:09:15,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:09:15,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 401 transitions. [2022-11-16 12:09:15,644 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9282407407407407 [2022-11-16 12:09:15,645 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 401 transitions. [2022-11-16 12:09:15,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 401 transitions. [2022-11-16 12:09:15,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:09:15,653 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 401 transitions. [2022-11-16 12:09:15,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 133.66666666666666) internal successors, (401), 3 states have internal predecessors, (401), 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) [2022-11-16 12:09:15,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 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) [2022-11-16 12:09:15,668 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 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) [2022-11-16 12:09:15,670 INFO L175 Difference]: Start difference. First operand has 151 places, 140 transitions, 292 flow. Second operand 3 states and 401 transitions. [2022-11-16 12:09:15,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 151 transitions, 399 flow [2022-11-16 12:09:15,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 151 transitions, 392 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:09:15,722 INFO L231 Difference]: Finished difference. Result has 149 places, 141 transitions, 329 flow [2022-11-16 12:09:15,724 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=329, PETRI_PLACES=149, PETRI_TRANSITIONS=141} [2022-11-16 12:09:15,734 INFO L288 CegarLoopForPetriNet]: 151 programPoint places, -2 predicate places. [2022-11-16 12:09:15,735 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 141 transitions, 329 flow [2022-11-16 12:09:15,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 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) [2022-11-16 12:09:15,736 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:09:15,737 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] [2022-11-16 12:09:15,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:09:15,737 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 12:09:15,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:15,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1614427347, now seen corresponding path program 1 times [2022-11-16 12:09:15,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:15,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962146990] [2022-11-16 12:09:15,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:15,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:15,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:15,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:09:15,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:09:15,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962146990] [2022-11-16 12:09:15,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962146990] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:09:15,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:09:15,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:09:15,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493096229] [2022-11-16 12:09:15,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:09:15,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:09:15,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:09:15,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:09:15,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:09:15,964 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 144 [2022-11-16 12:09:15,966 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 141 transitions, 329 flow. Second operand has 4 states, 4 states have (on average 118.5) internal successors, (474), 4 states have internal predecessors, (474), 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) [2022-11-16 12:09:15,966 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:09:15,966 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 144 [2022-11-16 12:09:15,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:09:17,099 INFO L130 PetriNetUnfolder]: 2205/4544 cut-off events. [2022-11-16 12:09:17,100 INFO L131 PetriNetUnfolder]: For 112/112 co-relation queries the response was YES. [2022-11-16 12:09:17,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9890 conditions, 4544 events. 2205/4544 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 338. Compared 37998 event pairs, 280 based on Foata normal form. 0/3440 useless extension candidates. Maximal degree in co-relation 9833. Up to 1750 conditions per place. [2022-11-16 12:09:17,149 INFO L137 encePairwiseOnDemand]: 131/144 looper letters, 42 selfloop transitions, 13 changer transitions 0/168 dead transitions. [2022-11-16 12:09:17,150 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 168 transitions, 519 flow [2022-11-16 12:09:17,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:09:17,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 12:09:17,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 527 transitions. [2022-11-16 12:09:17,152 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9149305555555556 [2022-11-16 12:09:17,152 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 527 transitions. [2022-11-16 12:09:17,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 527 transitions. [2022-11-16 12:09:17,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:09:17,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 527 transitions. [2022-11-16 12:09:17,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 131.75) internal successors, (527), 4 states have internal predecessors, (527), 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) [2022-11-16 12:09:17,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 144.0) internal successors, (720), 5 states have internal predecessors, (720), 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) [2022-11-16 12:09:17,156 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 144.0) internal successors, (720), 5 states have internal predecessors, (720), 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) [2022-11-16 12:09:17,157 INFO L175 Difference]: Start difference. First operand has 149 places, 141 transitions, 329 flow. Second operand 4 states and 527 transitions. [2022-11-16 12:09:17,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 168 transitions, 519 flow [2022-11-16 12:09:17,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 168 transitions, 514 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:09:17,161 INFO L231 Difference]: Finished difference. Result has 153 places, 149 transitions, 427 flow [2022-11-16 12:09:17,162 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=427, PETRI_PLACES=153, PETRI_TRANSITIONS=149} [2022-11-16 12:09:17,163 INFO L288 CegarLoopForPetriNet]: 151 programPoint places, 2 predicate places. [2022-11-16 12:09:17,163 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 149 transitions, 427 flow [2022-11-16 12:09:17,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 118.5) internal successors, (474), 4 states have internal predecessors, (474), 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) [2022-11-16 12:09:17,163 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:09:17,164 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] [2022-11-16 12:09:17,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:09:17,164 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 12:09:17,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:17,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1614427346, now seen corresponding path program 1 times [2022-11-16 12:09:17,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:17,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618731681] [2022-11-16 12:09:17,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:17,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:17,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:17,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:09:17,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:09:17,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618731681] [2022-11-16 12:09:17,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618731681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:09:17,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:09:17,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:09:17,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860487106] [2022-11-16 12:09:17,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:09:17,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:09:17,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:09:17,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:09:17,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:09:17,307 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 144 [2022-11-16 12:09:17,309 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 149 transitions, 427 flow. Second operand has 4 states, 4 states have (on average 118.5) internal successors, (474), 4 states have internal predecessors, (474), 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) [2022-11-16 12:09:17,310 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:09:17,310 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 144 [2022-11-16 12:09:17,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:09:17,998 INFO L130 PetriNetUnfolder]: 952/2326 cut-off events. [2022-11-16 12:09:17,999 INFO L131 PetriNetUnfolder]: For 1171/1171 co-relation queries the response was YES. [2022-11-16 12:09:18,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5318 conditions, 2326 events. 952/2326 cut-off events. For 1171/1171 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 17820 event pairs, 121 based on Foata normal form. 361/2425 useless extension candidates. Maximal degree in co-relation 5258. Up to 1277 conditions per place. [2022-11-16 12:09:18,036 INFO L137 encePairwiseOnDemand]: 135/144 looper letters, 33 selfloop transitions, 5 changer transitions 0/151 dead transitions. [2022-11-16 12:09:18,036 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 151 transitions, 473 flow [2022-11-16 12:09:18,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:09:18,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 12:09:18,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 506 transitions. [2022-11-16 12:09:18,039 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8784722222222222 [2022-11-16 12:09:18,039 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 506 transitions. [2022-11-16 12:09:18,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 506 transitions. [2022-11-16 12:09:18,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:09:18,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 506 transitions. [2022-11-16 12:09:18,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 126.5) internal successors, (506), 4 states have internal predecessors, (506), 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) [2022-11-16 12:09:18,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 144.0) internal successors, (720), 5 states have internal predecessors, (720), 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) [2022-11-16 12:09:18,045 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 144.0) internal successors, (720), 5 states have internal predecessors, (720), 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) [2022-11-16 12:09:18,045 INFO L175 Difference]: Start difference. First operand has 153 places, 149 transitions, 427 flow. Second operand 4 states and 506 transitions. [2022-11-16 12:09:18,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 151 transitions, 473 flow [2022-11-16 12:09:18,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 151 transitions, 450 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-11-16 12:09:18,070 INFO L231 Difference]: Finished difference. Result has 149 places, 141 transitions, 358 flow [2022-11-16 12:09:18,070 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=358, PETRI_PLACES=149, PETRI_TRANSITIONS=141} [2022-11-16 12:09:18,071 INFO L288 CegarLoopForPetriNet]: 151 programPoint places, -2 predicate places. [2022-11-16 12:09:18,072 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 141 transitions, 358 flow [2022-11-16 12:09:18,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 118.5) internal successors, (474), 4 states have internal predecessors, (474), 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) [2022-11-16 12:09:18,073 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:09:18,073 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] [2022-11-16 12:09:18,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:09:18,073 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 12:09:18,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:18,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1026339334, now seen corresponding path program 1 times [2022-11-16 12:09:18,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:18,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328759024] [2022-11-16 12:09:18,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:18,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:18,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:18,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:09:18,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:09:18,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328759024] [2022-11-16 12:09:18,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328759024] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:09:18,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:09:18,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:09:18,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160571364] [2022-11-16 12:09:18,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:09:18,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:09:18,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:09:18,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:09:18,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:09:18,482 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 144 [2022-11-16 12:09:18,483 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 141 transitions, 358 flow. Second operand has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 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) [2022-11-16 12:09:18,483 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:09:18,483 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 144 [2022-11-16 12:09:18,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:09:19,025 INFO L130 PetriNetUnfolder]: 739/1966 cut-off events. [2022-11-16 12:09:19,025 INFO L131 PetriNetUnfolder]: For 810/810 co-relation queries the response was YES. [2022-11-16 12:09:19,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3956 conditions, 1966 events. 739/1966 cut-off events. For 810/810 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 14724 event pairs, 77 based on Foata normal form. 0/1882 useless extension candidates. Maximal degree in co-relation 3897. Up to 389 conditions per place. [2022-11-16 12:09:19,047 INFO L137 encePairwiseOnDemand]: 135/144 looper letters, 42 selfloop transitions, 13 changer transitions 4/172 dead transitions. [2022-11-16 12:09:19,047 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 172 transitions, 566 flow [2022-11-16 12:09:19,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:09:19,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:09:19,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 648 transitions. [2022-11-16 12:09:19,051 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9 [2022-11-16 12:09:19,056 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 648 transitions. [2022-11-16 12:09:19,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 648 transitions. [2022-11-16 12:09:19,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:09:19,057 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 648 transitions. [2022-11-16 12:09:19,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 129.6) internal successors, (648), 5 states have internal predecessors, (648), 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) [2022-11-16 12:09:19,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 144.0) internal successors, (864), 6 states have internal predecessors, (864), 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) [2022-11-16 12:09:19,065 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 144.0) internal successors, (864), 6 states have internal predecessors, (864), 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) [2022-11-16 12:09:19,065 INFO L175 Difference]: Start difference. First operand has 149 places, 141 transitions, 358 flow. Second operand 5 states and 648 transitions. [2022-11-16 12:09:19,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 172 transitions, 566 flow [2022-11-16 12:09:19,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 172 transitions, 560 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:09:19,077 INFO L231 Difference]: Finished difference. Result has 152 places, 141 transitions, 394 flow [2022-11-16 12:09:19,078 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=394, PETRI_PLACES=152, PETRI_TRANSITIONS=141} [2022-11-16 12:09:19,079 INFO L288 CegarLoopForPetriNet]: 151 programPoint places, 1 predicate places. [2022-11-16 12:09:19,079 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 141 transitions, 394 flow [2022-11-16 12:09:19,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 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) [2022-11-16 12:09:19,080 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:09:19,080 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:09:19,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:09:19,081 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 12:09:19,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:19,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1404773203, now seen corresponding path program 1 times [2022-11-16 12:09:19,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:19,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857211360] [2022-11-16 12:09:19,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:19,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:19,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:09:19,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:09:19,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857211360] [2022-11-16 12:09:19,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857211360] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:09:19,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:09:19,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:09:19,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382581995] [2022-11-16 12:09:19,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:09:19,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:09:19,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:09:19,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:09:19,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:09:19,306 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 144 [2022-11-16 12:09:19,308 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 141 transitions, 394 flow. Second operand has 6 states, 6 states have (on average 119.16666666666667) internal successors, (715), 6 states have internal predecessors, (715), 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) [2022-11-16 12:09:19,308 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:09:19,308 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 144 [2022-11-16 12:09:19,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:09:19,874 INFO L130 PetriNetUnfolder]: 712/2301 cut-off events. [2022-11-16 12:09:19,874 INFO L131 PetriNetUnfolder]: For 1680/1680 co-relation queries the response was YES. [2022-11-16 12:09:19,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4704 conditions, 2301 events. 712/2301 cut-off events. For 1680/1680 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 18345 event pairs, 185 based on Foata normal form. 16/2209 useless extension candidates. Maximal degree in co-relation 4644. Up to 389 conditions per place. [2022-11-16 12:09:19,889 INFO L137 encePairwiseOnDemand]: 135/144 looper letters, 0 selfloop transitions, 0 changer transitions 164/164 dead transitions. [2022-11-16 12:09:19,890 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 164 transitions, 530 flow [2022-11-16 12:09:19,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:09:19,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:09:19,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 757 transitions. [2022-11-16 12:09:19,893 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8761574074074074 [2022-11-16 12:09:19,893 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 757 transitions. [2022-11-16 12:09:19,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 757 transitions. [2022-11-16 12:09:19,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:09:19,895 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 757 transitions. [2022-11-16 12:09:19,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 126.16666666666667) internal successors, (757), 6 states have internal predecessors, (757), 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) [2022-11-16 12:09:19,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 144.0) internal successors, (1008), 7 states have internal predecessors, (1008), 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) [2022-11-16 12:09:19,901 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 144.0) internal successors, (1008), 7 states have internal predecessors, (1008), 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) [2022-11-16 12:09:19,901 INFO L175 Difference]: Start difference. First operand has 152 places, 141 transitions, 394 flow. Second operand 6 states and 757 transitions. [2022-11-16 12:09:19,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 164 transitions, 530 flow [2022-11-16 12:09:19,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 164 transitions, 475 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-11-16 12:09:19,912 INFO L231 Difference]: Finished difference. Result has 147 places, 0 transitions, 0 flow [2022-11-16 12:09:19,912 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=307, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=147, PETRI_TRANSITIONS=0} [2022-11-16 12:09:19,916 INFO L288 CegarLoopForPetriNet]: 151 programPoint places, -4 predicate places. [2022-11-16 12:09:19,917 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 0 transitions, 0 flow [2022-11-16 12:09:19,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 119.16666666666667) internal successors, (715), 6 states have internal predecessors, (715), 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) [2022-11-16 12:09:19,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-11-16 12:09:19,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-11-16 12:09:19,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-11-16 12:09:19,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-11-16 12:09:19,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-11-16 12:09:19,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-11-16 12:09:19,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-11-16 12:09:19,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-11-16 12:09:19,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-11-16 12:09:19,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-11-16 12:09:19,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-11-16 12:09:19,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-11-16 12:09:19,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-11-16 12:09:19,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-11-16 12:09:19,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-11-16 12:09:19,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-11-16 12:09:19,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-11-16 12:09:19,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-11-16 12:09:19,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-11-16 12:09:19,935 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-11-16 12:09:19,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:09:19,935 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-16 12:09:19,944 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 12:09:19,944 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:09:19,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:09:19 BasicIcfg [2022-11-16 12:09:19,951 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:09:19,952 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:09:19,952 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:09:19,952 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:09:19,953 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:09:13" (3/4) ... [2022-11-16 12:09:19,955 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 12:09:19,961 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-16 12:09:19,961 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-16 12:09:19,962 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-16 12:09:19,962 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-11-16 12:09:19,972 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2022-11-16 12:09:19,972 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-16 12:09:19,973 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-16 12:09:19,973 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 12:09:20,027 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7371b2a1-f6e8-4b3f-863e-4102b03c59df/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 12:09:20,032 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:09:20,033 INFO L158 Benchmark]: Toolchain (without parser) took 8982.56ms. Allocated memory was 117.4MB in the beginning and 490.7MB in the end (delta: 373.3MB). Free memory was 83.7MB in the beginning and 225.3MB in the end (delta: -141.7MB). Peak memory consumption was 230.8MB. Max. memory is 16.1GB. [2022-11-16 12:09:20,034 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 117.4MB. Free memory is still 70.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:09:20,034 INFO L158 Benchmark]: CACSL2BoogieTranslator took 861.13ms. Allocated memory is still 117.4MB. Free memory was 83.4MB in the beginning and 78.1MB in the end (delta: 5.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 12:09:20,034 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.89ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 75.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:09:20,035 INFO L158 Benchmark]: Boogie Preprocessor took 56.47ms. Allocated memory is still 117.4MB. Free memory was 75.1MB in the beginning and 73.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:09:20,035 INFO L158 Benchmark]: RCFGBuilder took 1019.36ms. Allocated memory was 117.4MB in the beginning and 144.7MB in the end (delta: 27.3MB). Free memory was 73.0MB in the beginning and 101.5MB in the end (delta: -28.5MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. [2022-11-16 12:09:20,035 INFO L158 Benchmark]: TraceAbstraction took 6865.90ms. Allocated memory was 144.7MB in the beginning and 490.7MB in the end (delta: 346.0MB). Free memory was 101.5MB in the beginning and 228.5MB in the end (delta: -127.0MB). Peak memory consumption was 273.0MB. Max. memory is 16.1GB. [2022-11-16 12:09:20,036 INFO L158 Benchmark]: Witness Printer took 80.24ms. Allocated memory is still 490.7MB. Free memory was 228.5MB in the beginning and 225.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:09:20,039 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 117.4MB. Free memory is still 70.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 861.13ms. Allocated memory is still 117.4MB. Free memory was 83.4MB in the beginning and 78.1MB in the end (delta: 5.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.89ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 75.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.47ms. Allocated memory is still 117.4MB. Free memory was 75.1MB in the beginning and 73.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1019.36ms. Allocated memory was 117.4MB in the beginning and 144.7MB in the end (delta: 27.3MB). Free memory was 73.0MB in the beginning and 101.5MB in the end (delta: -28.5MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. * TraceAbstraction took 6865.90ms. Allocated memory was 144.7MB in the beginning and 490.7MB in the end (delta: 346.0MB). Free memory was 101.5MB in the beginning and 228.5MB in the end (delta: -127.0MB). Peak memory consumption was 273.0MB. Max. memory is 16.1GB. * Witness Printer took 80.24ms. Allocated memory is still 490.7MB. Free memory was 228.5MB in the beginning and 225.3MB 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: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 780]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 780]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 810]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 810]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 836]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 836]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 188 locations, 20 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 141 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 141 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 285 IncrementalHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 17 mSDtfsCounter, 285 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=427occurred in iteration=2, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 346 NumberOfCodeBlocks, 346 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 341 ConstructedInterpolants, 0 QuantifiedInterpolants, 793 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 12:09:20,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7371b2a1-f6e8-4b3f-863e-4102b03c59df/bin/uautomizer-tPACEb0tL8/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