./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix008_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b74dc7-b226-4d60-9986-d5e7f3ce1e96/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b74dc7-b226-4d60-9986-d5e7f3ce1e96/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b74dc7-b226-4d60-9986-d5e7f3ce1e96/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b74dc7-b226-4d60-9986-d5e7f3ce1e96/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix008_tso.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b74dc7-b226-4d60-9986-d5e7f3ce1e96/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b74dc7-b226-4d60-9986-d5e7f3ce1e96/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5babed9169ff1f82a919f6310b42a42108866edd5cf3c99389faf03347963192 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:33:19,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:33:19,981 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:33:20,022 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:33:20,022 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:33:20,024 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:33:20,026 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:33:20,028 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:33:20,031 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:33:20,032 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:33:20,033 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:33:20,035 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:33:20,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:33:20,037 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:33:20,039 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:33:20,041 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:33:20,042 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:33:20,044 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:33:20,046 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:33:20,048 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:33:20,050 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:33:20,052 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:33:20,054 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:33:20,055 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:33:20,060 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:33:20,061 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:33:20,061 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:33:20,062 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:33:20,063 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:33:20,065 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:33:20,065 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:33:20,067 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:33:20,068 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:33:20,069 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:33:20,071 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:33:20,071 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:33:20,073 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:33:20,073 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:33:20,074 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:33:20,075 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:33:20,076 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:33:20,078 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b74dc7-b226-4d60-9986-d5e7f3ce1e96/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 20:33:20,131 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:33:20,132 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:33:20,132 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:33:20,133 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:33:20,134 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:33:20,134 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:33:20,135 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:33:20,135 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:33:20,136 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:33:20,136 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:33:20,137 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:33:20,138 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:33:20,138 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:33:20,138 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:33:20,138 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:33:20,139 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:33:20,139 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:33:20,139 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:33:20,139 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:33:20,139 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:33:20,140 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:33:20,140 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:33:20,140 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:33:20,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:33:20,141 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:33:20,141 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:33:20,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:33:20,142 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:33:20,142 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:33:20,142 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:33:20,142 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:33:20,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:33:20,143 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:33:20,143 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:33:20,143 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:33:20,144 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_a6b74dc7-b226-4d60-9986-d5e7f3ce1e96/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b74dc7-b226-4d60-9986-d5e7f3ce1e96/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5babed9169ff1f82a919f6310b42a42108866edd5cf3c99389faf03347963192 [2022-11-18 20:33:20,536 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:33:20,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:33:20,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:33:20,575 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:33:20,577 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:33:20,579 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b74dc7-b226-4d60-9986-d5e7f3ce1e96/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread-wmm/mix008_tso.oepc.i [2022-11-18 20:33:20,671 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b74dc7-b226-4d60-9986-d5e7f3ce1e96/bin/uautomizer-TMbwUNV5ro/data/b24efdd97/8535e4e2a1624ab58e72e9a30745c91c/FLAG25a3702fc [2022-11-18 20:33:21,480 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:33:21,481 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b74dc7-b226-4d60-9986-d5e7f3ce1e96/sv-benchmarks/c/pthread-wmm/mix008_tso.oepc.i [2022-11-18 20:33:21,520 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b74dc7-b226-4d60-9986-d5e7f3ce1e96/bin/uautomizer-TMbwUNV5ro/data/b24efdd97/8535e4e2a1624ab58e72e9a30745c91c/FLAG25a3702fc [2022-11-18 20:33:21,661 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b74dc7-b226-4d60-9986-d5e7f3ce1e96/bin/uautomizer-TMbwUNV5ro/data/b24efdd97/8535e4e2a1624ab58e72e9a30745c91c [2022-11-18 20:33:21,664 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:33:21,666 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:33:21,668 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:33:21,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:33:21,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:33:21,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:33:21" (1/1) ... [2022-11-18 20:33:21,676 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e11a826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:21, skipping insertion in model container [2022-11-18 20:33:21,676 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:33:21" (1/1) ... [2022-11-18 20:33:21,686 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:33:21,745 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:33:22,009 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b74dc7-b226-4d60-9986-d5e7f3ce1e96/sv-benchmarks/c/pthread-wmm/mix008_tso.oepc.i[949,962] [2022-11-18 20:33:22,367 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:33:22,380 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:33:22,399 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b74dc7-b226-4d60-9986-d5e7f3ce1e96/sv-benchmarks/c/pthread-wmm/mix008_tso.oepc.i[949,962] [2022-11-18 20:33:22,546 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:33:22,592 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:33:22,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:22 WrapperNode [2022-11-18 20:33:22,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:33:22,594 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:33:22,595 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:33:22,595 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:33:22,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:22" (1/1) ... [2022-11-18 20:33:22,653 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:22" (1/1) ... [2022-11-18 20:33:22,720 INFO L138 Inliner]: procedures = 177, calls = 72, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 278 [2022-11-18 20:33:22,721 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:33:22,722 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:33:22,722 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:33:22,723 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:33:22,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:22" (1/1) ... [2022-11-18 20:33:22,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:22" (1/1) ... [2022-11-18 20:33:22,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:22" (1/1) ... [2022-11-18 20:33:22,741 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:22" (1/1) ... [2022-11-18 20:33:22,755 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:22" (1/1) ... [2022-11-18 20:33:22,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:22" (1/1) ... [2022-11-18 20:33:22,761 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:22" (1/1) ... [2022-11-18 20:33:22,764 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:22" (1/1) ... [2022-11-18 20:33:22,769 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:33:22,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:33:22,771 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:33:22,771 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:33:22,772 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:22" (1/1) ... [2022-11-18 20:33:22,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:33:22,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b74dc7-b226-4d60-9986-d5e7f3ce1e96/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:33:22,810 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b74dc7-b226-4d60-9986-d5e7f3ce1e96/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:33:22,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b74dc7-b226-4d60-9986-d5e7f3ce1e96/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:33:22,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:33:22,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 20:33:22,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:33:22,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:33:22,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:33:22,915 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-18 20:33:22,915 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-18 20:33:22,915 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-18 20:33:22,915 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-18 20:33:22,916 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-18 20:33:22,916 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-18 20:33:22,916 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-18 20:33:22,916 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-18 20:33:22,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:33:22,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 20:33:22,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:33:22,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:33:22,919 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:33:23,137 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:33:23,152 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:33:23,971 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:33:24,364 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:33:24,365 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:33:24,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:33:24 BoogieIcfgContainer [2022-11-18 20:33:24,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:33:24,373 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:33:24,373 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:33:24,378 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:33:24,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:33:21" (1/3) ... [2022-11-18 20:33:24,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2472a7dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:33:24, skipping insertion in model container [2022-11-18 20:33:24,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:22" (2/3) ... [2022-11-18 20:33:24,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2472a7dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:33:24, skipping insertion in model container [2022-11-18 20:33:24,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:33:24" (3/3) ... [2022-11-18 20:33:24,382 INFO L112 eAbstractionObserver]: Analyzing ICFG mix008_tso.oepc.i [2022-11-18 20:33:24,393 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:33:24,407 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:33:24,407 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-18 20:33:24,407 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:33:24,527 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 20:33:24,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 173 places, 162 transitions, 344 flow [2022-11-18 20:33:24,693 INFO L130 PetriNetUnfolder]: 2/158 cut-off events. [2022-11-18 20:33:24,694 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:33:24,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 158 events. 2/158 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 99 event pairs, 0 based on Foata normal form. 0/148 useless extension candidates. Maximal degree in co-relation 98. Up to 2 conditions per place. [2022-11-18 20:33:24,702 INFO L82 GeneralOperation]: Start removeDead. Operand has 173 places, 162 transitions, 344 flow [2022-11-18 20:33:24,713 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 169 places, 158 transitions, 328 flow [2022-11-18 20:33:24,728 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:33:24,737 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;@491a6e99, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:33:24,738 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-18 20:33:24,756 INFO L130 PetriNetUnfolder]: 0/73 cut-off events. [2022-11-18 20:33:24,756 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:33:24,757 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:33:24,758 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] [2022-11-18 20:33:24,758 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-18 20:33:24,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:33:24,765 INFO L85 PathProgramCache]: Analyzing trace with hash 717422851, now seen corresponding path program 1 times [2022-11-18 20:33:24,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:33:24,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625400680] [2022-11-18 20:33:24,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:33:24,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:33:24,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:25,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:33:25,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:33:25,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625400680] [2022-11-18 20:33:25,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625400680] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:33:25,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:33:25,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:33:25,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526896697] [2022-11-18 20:33:25,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:33:25,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:33:25,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:33:25,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:33:25,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:33:25,425 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 162 [2022-11-18 20:33:25,434 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 158 transitions, 328 flow. Second operand has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:33:25,434 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:33:25,434 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 162 [2022-11-18 20:33:25,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:33:31,784 INFO L130 PetriNetUnfolder]: 6803/23108 cut-off events. [2022-11-18 20:33:31,785 INFO L131 PetriNetUnfolder]: For 99/99 co-relation queries the response was YES. [2022-11-18 20:33:31,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32838 conditions, 23108 events. 6803/23108 cut-off events. For 99/99 co-relation queries the response was YES. Maximal size of possible extension queue 875. Compared 300379 event pairs, 5367 based on Foata normal form. 1239/20606 useless extension candidates. Maximal degree in co-relation 32762. Up to 9050 conditions per place. [2022-11-18 20:33:32,019 INFO L137 encePairwiseOnDemand]: 147/162 looper letters, 41 selfloop transitions, 5 changer transitions 0/173 dead transitions. [2022-11-18 20:33:32,019 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 173 transitions, 459 flow [2022-11-18 20:33:32,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:33:32,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:33:32,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 451 transitions. [2022-11-18 20:33:32,038 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9279835390946503 [2022-11-18 20:33:32,039 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 451 transitions. [2022-11-18 20:33:32,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 451 transitions. [2022-11-18 20:33:32,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:33:32,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 451 transitions. [2022-11-18 20:33:32,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 150.33333333333334) internal successors, (451), 3 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:33:32,060 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 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) [2022-11-18 20:33:32,061 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 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) [2022-11-18 20:33:32,063 INFO L175 Difference]: Start difference. First operand has 169 places, 158 transitions, 328 flow. Second operand 3 states and 451 transitions. [2022-11-18 20:33:32,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 173 transitions, 459 flow [2022-11-18 20:33:32,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 173 transitions, 452 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 20:33:32,076 INFO L231 Difference]: Finished difference. Result has 167 places, 159 transitions, 365 flow [2022-11-18 20:33:32,079 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=365, PETRI_PLACES=167, PETRI_TRANSITIONS=159} [2022-11-18 20:33:32,084 INFO L288 CegarLoopForPetriNet]: 169 programPoint places, -2 predicate places. [2022-11-18 20:33:32,084 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 159 transitions, 365 flow [2022-11-18 20:33:32,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:33:32,085 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:33:32,085 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] [2022-11-18 20:33:32,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:33:32,086 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-18 20:33:32,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:33:32,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1995358251, now seen corresponding path program 1 times [2022-11-18 20:33:32,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:33:32,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807414217] [2022-11-18 20:33:32,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:33:32,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:33:32,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:32,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:33:32,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:33:32,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807414217] [2022-11-18 20:33:32,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807414217] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:33:32,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:33:32,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:33:32,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480828495] [2022-11-18 20:33:32,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:33:32,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:33:32,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:33:32,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:33:32,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:33:32,407 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 162 [2022-11-18 20:33:32,408 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 159 transitions, 365 flow. Second operand has 4 states, 4 states have (on average 132.5) internal successors, (530), 4 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:33:32,408 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:33:32,409 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 162 [2022-11-18 20:33:32,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:33:35,252 INFO L130 PetriNetUnfolder]: 4311/8775 cut-off events. [2022-11-18 20:33:35,252 INFO L131 PetriNetUnfolder]: For 289/289 co-relation queries the response was YES. [2022-11-18 20:33:35,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18279 conditions, 8775 events. 4311/8775 cut-off events. For 289/289 co-relation queries the response was YES. Maximal size of possible extension queue 620. Compared 79806 event pairs, 554 based on Foata normal form. 0/7381 useless extension candidates. Maximal degree in co-relation 18204. Up to 3520 conditions per place. [2022-11-18 20:33:35,385 INFO L137 encePairwiseOnDemand]: 149/162 looper letters, 54 selfloop transitions, 13 changer transitions 0/194 dead transitions. [2022-11-18 20:33:35,386 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 194 transitions, 595 flow [2022-11-18 20:33:35,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:33:35,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 20:33:35,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 595 transitions. [2022-11-18 20:33:35,396 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9182098765432098 [2022-11-18 20:33:35,396 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 595 transitions. [2022-11-18 20:33:35,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 595 transitions. [2022-11-18 20:33:35,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:33:35,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 595 transitions. [2022-11-18 20:33:35,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 148.75) internal successors, (595), 4 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) [2022-11-18 20:33:35,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 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) [2022-11-18 20:33:35,405 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 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) [2022-11-18 20:33:35,407 INFO L175 Difference]: Start difference. First operand has 167 places, 159 transitions, 365 flow. Second operand 4 states and 595 transitions. [2022-11-18 20:33:35,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 194 transitions, 595 flow [2022-11-18 20:33:35,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 194 transitions, 590 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:33:35,420 INFO L231 Difference]: Finished difference. Result has 171 places, 167 transitions, 463 flow [2022-11-18 20:33:35,421 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=463, PETRI_PLACES=171, PETRI_TRANSITIONS=167} [2022-11-18 20:33:35,423 INFO L288 CegarLoopForPetriNet]: 169 programPoint places, 2 predicate places. [2022-11-18 20:33:35,423 INFO L495 AbstractCegarLoop]: Abstraction has has 171 places, 167 transitions, 463 flow [2022-11-18 20:33:35,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 132.5) internal successors, (530), 4 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:33:35,425 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:33:35,425 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] [2022-11-18 20:33:35,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:33:35,426 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-18 20:33:35,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:33:35,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1507057742, now seen corresponding path program 1 times [2022-11-18 20:33:35,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:33:35,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560911001] [2022-11-18 20:33:35,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:33:35,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:33:35,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:35,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:33:35,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:33:35,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560911001] [2022-11-18 20:33:35,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560911001] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:33:35,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:33:35,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:33:35,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164564025] [2022-11-18 20:33:35,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:33:35,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:33:35,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:33:35,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:33:35,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:33:35,692 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 162 [2022-11-18 20:33:35,694 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 167 transitions, 463 flow. Second operand has 4 states, 4 states have (on average 132.5) internal successors, (530), 4 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:33:35,694 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:33:35,694 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 162 [2022-11-18 20:33:35,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:33:37,198 INFO L130 PetriNetUnfolder]: 2226/5273 cut-off events. [2022-11-18 20:33:37,199 INFO L131 PetriNetUnfolder]: For 2744/2744 co-relation queries the response was YES. [2022-11-18 20:33:37,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11295 conditions, 5273 events. 2226/5273 cut-off events. For 2744/2744 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 46516 event pairs, 347 based on Foata normal form. 621/5607 useless extension candidates. Maximal degree in co-relation 11217. Up to 2701 conditions per place. [2022-11-18 20:33:37,281 INFO L137 encePairwiseOnDemand]: 153/162 looper letters, 41 selfloop transitions, 5 changer transitions 0/173 dead transitions. [2022-11-18 20:33:37,281 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 173 transitions, 533 flow [2022-11-18 20:33:37,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:33:37,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 20:33:37,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 570 transitions. [2022-11-18 20:33:37,288 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8796296296296297 [2022-11-18 20:33:37,288 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 570 transitions. [2022-11-18 20:33:37,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 570 transitions. [2022-11-18 20:33:37,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:33:37,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 570 transitions. [2022-11-18 20:33:37,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 142.5) internal successors, (570), 4 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:33:37,294 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 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) [2022-11-18 20:33:37,295 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 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) [2022-11-18 20:33:37,295 INFO L175 Difference]: Start difference. First operand has 171 places, 167 transitions, 463 flow. Second operand 4 states and 570 transitions. [2022-11-18 20:33:37,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 173 transitions, 533 flow [2022-11-18 20:33:37,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 173 transitions, 510 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-11-18 20:33:37,391 INFO L231 Difference]: Finished difference. Result has 167 places, 159 transitions, 394 flow [2022-11-18 20:33:37,392 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=394, PETRI_PLACES=167, PETRI_TRANSITIONS=159} [2022-11-18 20:33:37,395 INFO L288 CegarLoopForPetriNet]: 169 programPoint places, -2 predicate places. [2022-11-18 20:33:37,396 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 159 transitions, 394 flow [2022-11-18 20:33:37,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 132.5) internal successors, (530), 4 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:33:37,397 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:33:37,397 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:33:37,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:33:37,398 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-18 20:33:37,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:33:37,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1829083973, now seen corresponding path program 1 times [2022-11-18 20:33:37,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:33:37,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125753842] [2022-11-18 20:33:37,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:33:37,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:33:37,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:37,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:33:37,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:33:37,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125753842] [2022-11-18 20:33:37,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125753842] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:33:37,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:33:37,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:33:37,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627594125] [2022-11-18 20:33:37,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:33:37,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:33:37,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:33:37,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:33:37,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:33:37,814 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 162 [2022-11-18 20:33:37,815 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 159 transitions, 394 flow. Second operand has 5 states, 5 states have (on average 133.4) internal successors, (667), 5 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:33:37,816 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:33:37,816 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 162 [2022-11-18 20:33:37,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:33:39,155 INFO L130 PetriNetUnfolder]: 1929/4781 cut-off events. [2022-11-18 20:33:39,155 INFO L131 PetriNetUnfolder]: For 2007/2007 co-relation queries the response was YES. [2022-11-18 20:33:39,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9355 conditions, 4781 events. 1929/4781 cut-off events. For 2007/2007 co-relation queries the response was YES. Maximal size of possible extension queue 272. Compared 41799 event pairs, 303 based on Foata normal form. 0/4689 useless extension candidates. Maximal degree in co-relation 9278. Up to 1151 conditions per place. [2022-11-18 20:33:39,209 INFO L137 encePairwiseOnDemand]: 153/162 looper letters, 58 selfloop transitions, 13 changer transitions 4/202 dead transitions. [2022-11-18 20:33:39,209 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 202 transitions, 658 flow [2022-11-18 20:33:39,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:33:39,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:33:39,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 734 transitions. [2022-11-18 20:33:39,213 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9061728395061729 [2022-11-18 20:33:39,213 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 734 transitions. [2022-11-18 20:33:39,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 734 transitions. [2022-11-18 20:33:39,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:33:39,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 734 transitions. [2022-11-18 20:33:39,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 146.8) internal successors, (734), 5 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:33:39,220 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 162.0) internal successors, (972), 6 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:33:39,221 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 162.0) internal successors, (972), 6 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:33:39,222 INFO L175 Difference]: Start difference. First operand has 167 places, 159 transitions, 394 flow. Second operand 5 states and 734 transitions. [2022-11-18 20:33:39,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 202 transitions, 658 flow [2022-11-18 20:33:39,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 202 transitions, 652 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:33:39,229 INFO L231 Difference]: Finished difference. Result has 170 places, 159 transitions, 430 flow [2022-11-18 20:33:39,230 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=430, PETRI_PLACES=170, PETRI_TRANSITIONS=159} [2022-11-18 20:33:39,231 INFO L288 CegarLoopForPetriNet]: 169 programPoint places, 1 predicate places. [2022-11-18 20:33:39,231 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 159 transitions, 430 flow [2022-11-18 20:33:39,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 133.4) internal successors, (667), 5 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:33:39,232 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:33:39,232 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:33:39,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:33:39,233 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-18 20:33:39,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:33:39,234 INFO L85 PathProgramCache]: Analyzing trace with hash 475513694, now seen corresponding path program 1 times [2022-11-18 20:33:39,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:33:39,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216146605] [2022-11-18 20:33:39,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:33:39,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:33:39,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:39,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:33:39,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:33:39,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216146605] [2022-11-18 20:33:39,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216146605] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:33:39,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:33:39,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:33:39,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916158834] [2022-11-18 20:33:39,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:33:39,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:33:39,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:33:39,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:33:39,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:33:39,669 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 162 [2022-11-18 20:33:39,671 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 159 transitions, 430 flow. Second operand has 6 states, 6 states have (on average 133.83333333333334) internal successors, (803), 6 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:33:39,671 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:33:39,672 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 162 [2022-11-18 20:33:39,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:33:41,044 INFO L130 PetriNetUnfolder]: 1902/5440 cut-off events. [2022-11-18 20:33:41,045 INFO L131 PetriNetUnfolder]: For 3626/3626 co-relation queries the response was YES. [2022-11-18 20:33:41,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10941 conditions, 5440 events. 1902/5440 cut-off events. For 3626/3626 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 51069 event pairs, 715 based on Foata normal form. 16/5282 useless extension candidates. Maximal degree in co-relation 10863. Up to 1151 conditions per place. [2022-11-18 20:33:41,072 INFO L137 encePairwiseOnDemand]: 153/162 looper letters, 0 selfloop transitions, 0 changer transitions 194/194 dead transitions. [2022-11-18 20:33:41,072 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 194 transitions, 622 flow [2022-11-18 20:33:41,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:33:41,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:33:41,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 857 transitions. [2022-11-18 20:33:41,076 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8816872427983539 [2022-11-18 20:33:41,076 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 857 transitions. [2022-11-18 20:33:41,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 857 transitions. [2022-11-18 20:33:41,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:33:41,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 857 transitions. [2022-11-18 20:33:41,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 142.83333333333334) internal successors, (857), 6 states have internal predecessors, (857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:33:41,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:33:41,084 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:33:41,084 INFO L175 Difference]: Start difference. First operand has 170 places, 159 transitions, 430 flow. Second operand 6 states and 857 transitions. [2022-11-18 20:33:41,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 194 transitions, 622 flow [2022-11-18 20:33:41,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 194 transitions, 567 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-11-18 20:33:41,111 INFO L231 Difference]: Finished difference. Result has 165 places, 0 transitions, 0 flow [2022-11-18 20:33:41,112 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=165, PETRI_TRANSITIONS=0} [2022-11-18 20:33:41,113 INFO L288 CegarLoopForPetriNet]: 169 programPoint places, -4 predicate places. [2022-11-18 20:33:41,113 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 0 transitions, 0 flow [2022-11-18 20:33:41,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.83333333333334) internal successors, (803), 6 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:33:41,117 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-11-18 20:33:41,118 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-11-18 20:33:41,118 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-11-18 20:33:41,119 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-11-18 20:33:41,119 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-11-18 20:33:41,119 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-11-18 20:33:41,119 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-11-18 20:33:41,120 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-11-18 20:33:41,120 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-11-18 20:33:41,120 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-11-18 20:33:41,120 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-11-18 20:33:41,121 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-11-18 20:33:41,121 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-11-18 20:33:41,121 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-11-18 20:33:41,121 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-11-18 20:33:41,122 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-11-18 20:33:41,122 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-11-18 20:33:41,122 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-11-18 20:33:41,123 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-11-18 20:33:41,123 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-11-18 20:33:41,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:33:41,124 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-18 20:33:41,131 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 20:33:41,131 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:33:41,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:33:41 BasicIcfg [2022-11-18 20:33:41,138 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:33:41,139 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:33:41,139 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:33:41,139 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:33:41,140 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:33:24" (3/4) ... [2022-11-18 20:33:41,144 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 20:33:41,151 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-18 20:33:41,152 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-18 20:33:41,152 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-18 20:33:41,152 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-11-18 20:33:41,162 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2022-11-18 20:33:41,162 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-18 20:33:41,163 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-18 20:33:41,163 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:33:41,240 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b74dc7-b226-4d60-9986-d5e7f3ce1e96/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:33:41,241 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:33:41,241 INFO L158 Benchmark]: Toolchain (without parser) took 19575.41ms. Allocated memory was 88.1MB in the beginning and 2.0GB in the end (delta: 1.9GB). Free memory was 52.0MB in the beginning and 1.5GB in the end (delta: -1.5GB). Peak memory consumption was 446.1MB. Max. memory is 16.1GB. [2022-11-18 20:33:41,242 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 88.1MB. Free memory was 60.4MB in the beginning and 60.4MB in the end (delta: 24.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:33:41,242 INFO L158 Benchmark]: CACSL2BoogieTranslator took 924.83ms. Allocated memory was 88.1MB in the beginning and 119.5MB in the end (delta: 31.5MB). Free memory was 51.9MB in the beginning and 77.9MB in the end (delta: -26.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-18 20:33:41,243 INFO L158 Benchmark]: Boogie Procedure Inliner took 126.94ms. Allocated memory is still 119.5MB. Free memory was 77.9MB in the beginning and 73.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 20:33:41,243 INFO L158 Benchmark]: Boogie Preprocessor took 47.73ms. Allocated memory is still 119.5MB. Free memory was 73.7MB in the beginning and 71.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:33:41,244 INFO L158 Benchmark]: RCFGBuilder took 1598.39ms. Allocated memory is still 119.5MB. Free memory was 71.0MB in the beginning and 55.9MB in the end (delta: 15.1MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. [2022-11-18 20:33:41,244 INFO L158 Benchmark]: TraceAbstraction took 16765.59ms. Allocated memory was 119.5MB in the beginning and 2.0GB in the end (delta: 1.9GB). Free memory was 55.3MB in the beginning and 1.5GB in the end (delta: -1.5GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2022-11-18 20:33:41,245 INFO L158 Benchmark]: Witness Printer took 101.81ms. Allocated memory is still 2.0GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 20:33:41,248 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 88.1MB. Free memory was 60.4MB in the beginning and 60.4MB in the end (delta: 24.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 924.83ms. Allocated memory was 88.1MB in the beginning and 119.5MB in the end (delta: 31.5MB). Free memory was 51.9MB in the beginning and 77.9MB in the end (delta: -26.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 126.94ms. Allocated memory is still 119.5MB. Free memory was 77.9MB in the beginning and 73.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.73ms. Allocated memory is still 119.5MB. Free memory was 73.7MB in the beginning and 71.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1598.39ms. Allocated memory is still 119.5MB. Free memory was 71.0MB in the beginning and 55.9MB in the end (delta: 15.1MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. * TraceAbstraction took 16765.59ms. Allocated memory was 119.5MB in the beginning and 2.0GB in the end (delta: 1.9GB). Free memory was 55.3MB in the beginning and 1.5GB in the end (delta: -1.5GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. * Witness Printer took 101.81ms. Allocated memory is still 2.0GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 778]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 778]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 798]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 798]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 857]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 857]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 908]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 908]: 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, 206 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: 16.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 14.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 209 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 209 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 60 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 360 IncrementalHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 60 mSolverCounterUnsat, 17 mSDtfsCounter, 360 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=463occurred 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 437 NumberOfCodeBlocks, 437 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 432 ConstructedInterpolants, 0 QuantifiedInterpolants, 1066 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-18 20:33:41,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b74dc7-b226-4d60-9986-d5e7f3ce1e96/bin/uautomizer-TMbwUNV5ro/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