./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c --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_7fa5798e-cfe0-4938-a6ec-9a79d3b53ebb/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fa5798e-cfe0-4938-a6ec-9a79d3b53ebb/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_7fa5798e-cfe0-4938-a6ec-9a79d3b53ebb/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fa5798e-cfe0-4938-a6ec-9a79d3b53ebb/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fa5798e-cfe0-4938-a6ec-9a79d3b53ebb/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_7fa5798e-cfe0-4938-a6ec-9a79d3b53ebb/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 9eb5d9094342cfaa74d8ea4903febd735be5757c093d69b0f8dbb2a26886fda6 --- 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 19:44:28,551 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:44:28,553 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:44:28,594 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:44:28,598 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:44:28,602 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:44:28,605 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:44:28,611 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:44:28,614 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:44:28,618 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:44:28,621 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:44:28,624 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:44:28,626 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:44:28,628 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:44:28,629 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:44:28,631 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:44:28,632 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:44:28,634 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:44:28,635 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:44:28,640 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:44:28,645 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:44:28,647 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:44:28,649 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:44:28,651 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:44:28,657 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:44:28,661 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:44:28,662 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:44:28,663 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:44:28,664 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:44:28,665 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:44:28,666 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:44:28,667 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:44:28,668 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:44:28,670 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:44:28,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:44:28,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:44:28,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:44:28,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:44:28,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:44:28,674 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:44:28,675 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:44:28,676 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fa5798e-cfe0-4938-a6ec-9a79d3b53ebb/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 19:44:28,716 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:44:28,716 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:44:28,717 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:44:28,717 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:44:28,718 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:44:28,718 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:44:28,719 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:44:28,719 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:44:28,719 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:44:28,720 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:44:28,721 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:44:28,721 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:44:28,721 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:44:28,721 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:44:28,722 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:44:28,722 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:44:28,722 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:44:28,722 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:44:28,722 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 19:44:28,723 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:44:28,723 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:44:28,723 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:44:28,723 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:44:28,723 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:44:28,724 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:44:28,724 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:44:28,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:44:28,724 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:44:28,725 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:44:28,725 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:44:28,726 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:44:28,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:44:28,727 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:44:28,727 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:44:28,727 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:44:28,728 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_7fa5798e-cfe0-4938-a6ec-9a79d3b53ebb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fa5798e-cfe0-4938-a6ec-9a79d3b53ebb/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9eb5d9094342cfaa74d8ea4903febd735be5757c093d69b0f8dbb2a26886fda6 [2022-11-18 19:44:29,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:44:29,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:44:29,077 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:44:29,078 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:44:29,080 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:44:29,081 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fa5798e-cfe0-4938-a6ec-9a79d3b53ebb/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c [2022-11-18 19:44:29,160 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fa5798e-cfe0-4938-a6ec-9a79d3b53ebb/bin/uautomizer-TMbwUNV5ro/data/8c300d2c5/ee5ef6705c994b3db8d127c4b974b02a/FLAG9b9fb297d [2022-11-18 19:44:29,705 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:44:29,706 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fa5798e-cfe0-4938-a6ec-9a79d3b53ebb/sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c [2022-11-18 19:44:29,715 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fa5798e-cfe0-4938-a6ec-9a79d3b53ebb/bin/uautomizer-TMbwUNV5ro/data/8c300d2c5/ee5ef6705c994b3db8d127c4b974b02a/FLAG9b9fb297d [2022-11-18 19:44:30,038 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fa5798e-cfe0-4938-a6ec-9a79d3b53ebb/bin/uautomizer-TMbwUNV5ro/data/8c300d2c5/ee5ef6705c994b3db8d127c4b974b02a [2022-11-18 19:44:30,044 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:44:30,048 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:44:30,052 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:44:30,052 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:44:30,056 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:44:30,057 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:44:30" (1/1) ... [2022-11-18 19:44:30,060 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b30b3e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:44:30, skipping insertion in model container [2022-11-18 19:44:30,060 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:44:30" (1/1) ... [2022-11-18 19:44:30,070 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:44:30,100 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:44:30,376 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_7fa5798e-cfe0-4938-a6ec-9a79d3b53ebb/sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c[2599,2612] [2022-11-18 19:44:30,395 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:44:30,411 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:44:30,441 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_7fa5798e-cfe0-4938-a6ec-9a79d3b53ebb/sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c[2599,2612] [2022-11-18 19:44:30,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:44:30,461 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:44:30,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:44:30 WrapperNode [2022-11-18 19:44:30,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:44:30,463 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:44:30,464 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:44:30,464 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:44:30,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:44:30" (1/1) ... [2022-11-18 19:44:30,496 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:44:30" (1/1) ... [2022-11-18 19:44:30,529 INFO L138 Inliner]: procedures = 25, calls = 52, calls flagged for inlining = 16, calls inlined = 28, statements flattened = 365 [2022-11-18 19:44:30,529 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:44:30,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:44:30,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:44:30,530 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:44:30,539 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:44:30" (1/1) ... [2022-11-18 19:44:30,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:44:30" (1/1) ... [2022-11-18 19:44:30,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:44:30" (1/1) ... [2022-11-18 19:44:30,544 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:44:30" (1/1) ... [2022-11-18 19:44:30,554 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:44:30" (1/1) ... [2022-11-18 19:44:30,559 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:44:30" (1/1) ... [2022-11-18 19:44:30,562 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:44:30" (1/1) ... [2022-11-18 19:44:30,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:44:30" (1/1) ... [2022-11-18 19:44:30,568 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:44:30,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:44:30,570 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:44:30,570 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:44:30,571 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:44:30" (1/1) ... [2022-11-18 19:44:30,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:44:30,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fa5798e-cfe0-4938-a6ec-9a79d3b53ebb/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:44:30,616 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fa5798e-cfe0-4938-a6ec-9a79d3b53ebb/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:44:30,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fa5798e-cfe0-4938-a6ec-9a79d3b53ebb/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:44:30,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:44:30,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:44:30,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:44:30,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:44:30,661 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 19:44:30,661 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 19:44:30,661 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 19:44:30,661 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 19:44:30,662 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 19:44:30,662 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 19:44:30,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:44:30,662 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 19:44:30,662 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 19:44:30,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 19:44:30,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:44:30,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:44:30,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:44:30,665 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 19:44:30,817 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:44:30,819 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:44:31,604 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:44:32,994 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:44:32,994 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-18 19:44:32,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:44:32 BoogieIcfgContainer [2022-11-18 19:44:32,998 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:44:33,000 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:44:33,001 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:44:33,004 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:44:33,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:44:30" (1/3) ... [2022-11-18 19:44:33,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c7f24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:44:33, skipping insertion in model container [2022-11-18 19:44:33,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:44:30" (2/3) ... [2022-11-18 19:44:33,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c7f24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:44:33, skipping insertion in model container [2022-11-18 19:44:33,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:44:32" (3/3) ... [2022-11-18 19:44:33,007 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum2.wvr.c [2022-11-18 19:44:33,017 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 19:44:33,027 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:44:33,027 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 46 error locations. [2022-11-18 19:44:33,028 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 19:44:33,580 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-18 19:44:33,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 242 places, 248 transitions, 520 flow [2022-11-18 19:44:33,836 INFO L130 PetriNetUnfolder]: 16/245 cut-off events. [2022-11-18 19:44:33,837 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 19:44:33,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 245 events. 16/245 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 372 event pairs, 0 based on Foata normal form. 0/183 useless extension candidates. Maximal degree in co-relation 192. Up to 2 conditions per place. [2022-11-18 19:44:33,844 INFO L82 GeneralOperation]: Start removeDead. Operand has 242 places, 248 transitions, 520 flow [2022-11-18 19:44:33,857 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 219 places, 224 transitions, 463 flow [2022-11-18 19:44:33,866 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:44:33,873 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;@1a32905e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:44:33,873 INFO L358 AbstractCegarLoop]: Starting to check reachability of 91 error locations. [2022-11-18 19:44:33,885 INFO L130 PetriNetUnfolder]: 3/63 cut-off events. [2022-11-18 19:44:33,885 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:44:33,885 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:44:33,886 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:44:33,887 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-11-18 19:44:33,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:44:33,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1294000257, now seen corresponding path program 1 times [2022-11-18 19:44:33,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:44:33,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267351815] [2022-11-18 19:44:33,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:44:33,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:44:34,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:44:34,295 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 19:44:34,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:44:34,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267351815] [2022-11-18 19:44:34,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267351815] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:44:34,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:44:34,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:44:34,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639105007] [2022-11-18 19:44:34,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:44:34,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:44:34,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:44:34,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:44:34,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:44:34,363 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 248 [2022-11-18 19:44:34,370 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 224 transitions, 463 flow. Second operand has 4 states, 4 states have (on average 168.5) internal successors, (674), 4 states have internal predecessors, (674), 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 19:44:34,370 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:44:34,370 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 248 [2022-11-18 19:44:34,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:44:40,281 INFO L130 PetriNetUnfolder]: 4437/7987 cut-off events. [2022-11-18 19:44:40,281 INFO L131 PetriNetUnfolder]: For 1010/1024 co-relation queries the response was YES. [2022-11-18 19:44:40,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14353 conditions, 7987 events. 4437/7987 cut-off events. For 1010/1024 co-relation queries the response was YES. Maximal size of possible extension queue 548. Compared 56864 event pairs, 2142 based on Foata normal form. 638/3197 useless extension candidates. Maximal degree in co-relation 6922. Up to 2896 conditions per place. [2022-11-18 19:44:40,381 INFO L137 encePairwiseOnDemand]: 207/248 looper letters, 84 selfloop transitions, 9 changer transitions 5/239 dead transitions. [2022-11-18 19:44:40,382 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 239 transitions, 694 flow [2022-11-18 19:44:40,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:44:40,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 19:44:40,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 984 transitions. [2022-11-18 19:44:40,405 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7935483870967742 [2022-11-18 19:44:40,406 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 984 transitions. [2022-11-18 19:44:40,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 984 transitions. [2022-11-18 19:44:40,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:44:40,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 984 transitions. [2022-11-18 19:44:40,423 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 196.8) internal successors, (984), 5 states have internal predecessors, (984), 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 19:44:40,434 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 248.0) internal successors, (1488), 6 states have internal predecessors, (1488), 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 19:44:40,436 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 248.0) internal successors, (1488), 6 states have internal predecessors, (1488), 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 19:44:40,438 INFO L175 Difference]: Start difference. First operand has 219 places, 224 transitions, 463 flow. Second operand 5 states and 984 transitions. [2022-11-18 19:44:40,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 239 transitions, 694 flow [2022-11-18 19:44:40,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 239 transitions, 676 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 19:44:40,456 INFO L231 Difference]: Finished difference. Result has 203 places, 198 transitions, 455 flow [2022-11-18 19:44:40,459 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=455, PETRI_PLACES=203, PETRI_TRANSITIONS=198} [2022-11-18 19:44:40,465 INFO L288 CegarLoopForPetriNet]: 219 programPoint places, -16 predicate places. [2022-11-18 19:44:40,466 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 198 transitions, 455 flow [2022-11-18 19:44:40,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 168.5) internal successors, (674), 4 states have internal predecessors, (674), 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 19:44:40,467 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:44:40,468 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:44:40,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:44:40,469 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-11-18 19:44:40,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:44:40,470 INFO L85 PathProgramCache]: Analyzing trace with hash 300114495, now seen corresponding path program 1 times [2022-11-18 19:44:40,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:44:40,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278138458] [2022-11-18 19:44:40,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:44:40,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:44:40,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:44:40,764 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:44:40,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:44:40,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278138458] [2022-11-18 19:44:40,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278138458] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:44:40,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065118150] [2022-11-18 19:44:40,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:44:40,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:44:40,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fa5798e-cfe0-4938-a6ec-9a79d3b53ebb/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:44:40,770 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fa5798e-cfe0-4938-a6ec-9a79d3b53ebb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:44:40,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fa5798e-cfe0-4938-a6ec-9a79d3b53ebb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 19:44:41,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:44:41,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:44:41,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:44:41,256 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:44:41,256 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:44:41,351 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:44:41,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1065118150] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:44:41,351 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:44:41,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-18 19:44:41,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298670549] [2022-11-18 19:44:41,353 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:44:41,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:44:41,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:44:41,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:44:41,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:44:41,359 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 248 [2022-11-18 19:44:41,362 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 198 transitions, 455 flow. Second operand has 12 states, 12 states have (on average 169.66666666666666) internal successors, (2036), 12 states have internal predecessors, (2036), 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 19:44:41,363 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:44:41,363 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 248 [2022-11-18 19:44:41,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:44:52,601 INFO L130 PetriNetUnfolder]: 11091/19853 cut-off events. [2022-11-18 19:44:52,601 INFO L131 PetriNetUnfolder]: For 747/782 co-relation queries the response was YES. [2022-11-18 19:44:52,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35042 conditions, 19853 events. 11091/19853 cut-off events. For 747/782 co-relation queries the response was YES. Maximal size of possible extension queue 646. Compared 151974 event pairs, 5355 based on Foata normal form. 6/6314 useless extension candidates. Maximal degree in co-relation 27832. Up to 2889 conditions per place. [2022-11-18 19:44:52,785 INFO L137 encePairwiseOnDemand]: 233/248 looper letters, 186 selfloop transitions, 40 changer transitions 0/367 dead transitions. [2022-11-18 19:44:52,786 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 367 transitions, 1319 flow [2022-11-18 19:44:52,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-18 19:44:52,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-18 19:44:52,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3238 transitions. [2022-11-18 19:44:52,797 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.725358422939068 [2022-11-18 19:44:52,797 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3238 transitions. [2022-11-18 19:44:52,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3238 transitions. [2022-11-18 19:44:52,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:44:52,800 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3238 transitions. [2022-11-18 19:44:52,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 179.88888888888889) internal successors, (3238), 18 states have internal predecessors, (3238), 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 19:44:52,820 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 248.0) internal successors, (4712), 19 states have internal predecessors, (4712), 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 19:44:52,824 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 248.0) internal successors, (4712), 19 states have internal predecessors, (4712), 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 19:44:52,824 INFO L175 Difference]: Start difference. First operand has 203 places, 198 transitions, 455 flow. Second operand 18 states and 3238 transitions. [2022-11-18 19:44:52,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 367 transitions, 1319 flow [2022-11-18 19:44:52,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 367 transitions, 1314 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:44:52,839 INFO L231 Difference]: Finished difference. Result has 218 places, 225 transitions, 688 flow [2022-11-18 19:44:52,839 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=688, PETRI_PLACES=218, PETRI_TRANSITIONS=225} [2022-11-18 19:44:52,840 INFO L288 CegarLoopForPetriNet]: 219 programPoint places, -1 predicate places. [2022-11-18 19:44:52,840 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 225 transitions, 688 flow [2022-11-18 19:44:52,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 169.66666666666666) internal successors, (2036), 12 states have internal predecessors, (2036), 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 19:44:52,843 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:44:52,843 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:44:52,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fa5798e-cfe0-4938-a6ec-9a79d3b53ebb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 19:44:53,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fa5798e-cfe0-4938-a6ec-9a79d3b53ebb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:44:53,050 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-11-18 19:44:53,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:44:53,051 INFO L85 PathProgramCache]: Analyzing trace with hash 713616129, now seen corresponding path program 1 times [2022-11-18 19:44:53,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:44:53,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216719542] [2022-11-18 19:44:53,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:44:53,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:44:53,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:44:53,298 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:44:53,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:44:53,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216719542] [2022-11-18 19:44:53,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216719542] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:44:53,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841028198] [2022-11-18 19:44:53,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:44:53,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:44:53,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fa5798e-cfe0-4938-a6ec-9a79d3b53ebb/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:44:53,302 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fa5798e-cfe0-4938-a6ec-9a79d3b53ebb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:44:53,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fa5798e-cfe0-4938-a6ec-9a79d3b53ebb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 19:44:53,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:44:53,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:44:53,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:44:53,702 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:44:53,703 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:44:53,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841028198] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:44:53,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:44:53,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-18 19:44:53,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706932462] [2022-11-18 19:44:53,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:44:53,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:44:53,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:44:53,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:44:53,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:44:53,707 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 248 [2022-11-18 19:44:53,723 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 225 transitions, 688 flow. Second operand has 6 states, 6 states have (on average 169.33333333333334) internal successors, (1016), 6 states have internal predecessors, (1016), 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 19:44:53,724 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:44:53,724 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 248 [2022-11-18 19:44:53,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:45:04,306 INFO L130 PetriNetUnfolder]: 11091/19845 cut-off events. [2022-11-18 19:45:04,307 INFO L131 PetriNetUnfolder]: For 841/876 co-relation queries the response was YES. [2022-11-18 19:45:04,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35079 conditions, 19845 events. 11091/19845 cut-off events. For 841/876 co-relation queries the response was YES. Maximal size of possible extension queue 646. Compared 152190 event pairs, 5355 based on Foata normal form. 8/6308 useless extension candidates. Maximal degree in co-relation 28032. Up to 11512 conditions per place. [2022-11-18 19:45:04,477 INFO L137 encePairwiseOnDemand]: 237/248 looper letters, 85 selfloop transitions, 27 changer transitions 0/253 dead transitions. [2022-11-18 19:45:04,477 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 253 transitions, 940 flow [2022-11-18 19:45:04,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:45:04,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-18 19:45:04,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1262 transitions. [2022-11-18 19:45:04,481 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7269585253456221 [2022-11-18 19:45:04,482 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1262 transitions. [2022-11-18 19:45:04,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1262 transitions. [2022-11-18 19:45:04,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:45:04,483 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1262 transitions. [2022-11-18 19:45:04,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 180.28571428571428) internal successors, (1262), 7 states have internal predecessors, (1262), 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 19:45:04,490 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 248.0) internal successors, (1984), 8 states have internal predecessors, (1984), 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 19:45:04,491 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 248.0) internal successors, (1984), 8 states have internal predecessors, (1984), 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 19:45:04,492 INFO L175 Difference]: Start difference. First operand has 218 places, 225 transitions, 688 flow. Second operand 7 states and 1262 transitions. [2022-11-18 19:45:04,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 253 transitions, 940 flow [2022-11-18 19:45:04,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 253 transitions, 866 flow, removed 26 selfloop flow, removed 5 redundant places. [2022-11-18 19:45:04,504 INFO L231 Difference]: Finished difference. Result has 213 places, 217 transitions, 614 flow [2022-11-18 19:45:04,505 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=560, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=614, PETRI_PLACES=213, PETRI_TRANSITIONS=217} [2022-11-18 19:45:04,507 INFO L288 CegarLoopForPetriNet]: 219 programPoint places, -6 predicate places. [2022-11-18 19:45:04,508 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 217 transitions, 614 flow [2022-11-18 19:45:04,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 169.33333333333334) internal successors, (1016), 6 states have internal predecessors, (1016), 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 19:45:04,509 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:45:04,509 INFO L209 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:45:04,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fa5798e-cfe0-4938-a6ec-9a79d3b53ebb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 19:45:04,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fa5798e-cfe0-4938-a6ec-9a79d3b53ebb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:45:04,715 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-11-18 19:45:04,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:45:04,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1345892481, now seen corresponding path program 2 times [2022-11-18 19:45:04,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:45:04,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342201124] [2022-11-18 19:45:04,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:45:04,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:45:04,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:45:05,080 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:45:05,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:45:05,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342201124] [2022-11-18 19:45:05,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342201124] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:45:05,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961802956] [2022-11-18 19:45:05,084 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:45:05,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:45:05,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fa5798e-cfe0-4938-a6ec-9a79d3b53ebb/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:45:05,091 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fa5798e-cfe0-4938-a6ec-9a79d3b53ebb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:45:05,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fa5798e-cfe0-4938-a6ec-9a79d3b53ebb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 19:45:05,451 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 19:45:05,451 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:45:05,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 19:45:05,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:45:05,672 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-18 19:45:05,673 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:45:05,853 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-18 19:45:05,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961802956] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:45:05,854 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:45:05,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2022-11-18 19:45:05,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832129596] [2022-11-18 19:45:05,855 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:45:05,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 19:45:05,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:45:05,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 19:45:05,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-11-18 19:45:05,864 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 248 [2022-11-18 19:45:05,867 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 217 transitions, 614 flow. Second operand has 18 states, 18 states have (on average 150.61111111111111) internal successors, (2711), 18 states have internal predecessors, (2711), 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 19:45:05,867 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:45:05,868 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 248 [2022-11-18 19:45:05,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:45:20,595 INFO L130 PetriNetUnfolder]: 19454/34580 cut-off events. [2022-11-18 19:45:20,596 INFO L131 PetriNetUnfolder]: For 831/831 co-relation queries the response was YES. [2022-11-18 19:45:20,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62314 conditions, 34580 events. 19454/34580 cut-off events. For 831/831 co-relation queries the response was YES. Maximal size of possible extension queue 783. Compared 282181 event pairs, 11501 based on Foata normal form. 4/11316 useless extension candidates. Maximal degree in co-relation 53119. Up to 3769 conditions per place. [2022-11-18 19:45:20,827 INFO L137 encePairwiseOnDemand]: 229/248 looper letters, 295 selfloop transitions, 53 changer transitions 0/469 dead transitions. [2022-11-18 19:45:20,828 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 469 transitions, 1892 flow [2022-11-18 19:45:20,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-18 19:45:20,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-11-18 19:45:20,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3880 transitions. [2022-11-18 19:45:20,837 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6518817204301075 [2022-11-18 19:45:20,837 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3880 transitions. [2022-11-18 19:45:20,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3880 transitions. [2022-11-18 19:45:20,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:45:20,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3880 transitions. [2022-11-18 19:45:20,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 161.66666666666666) internal successors, (3880), 24 states have internal predecessors, (3880), 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 19:45:20,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 248.0) internal successors, (6200), 25 states have internal predecessors, (6200), 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 19:45:20,860 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 248.0) internal successors, (6200), 25 states have internal predecessors, (6200), 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 19:45:20,860 INFO L175 Difference]: Start difference. First operand has 213 places, 217 transitions, 614 flow. Second operand 24 states and 3880 transitions. [2022-11-18 19:45:20,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 469 transitions, 1892 flow [2022-11-18 19:45:20,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 469 transitions, 1834 flow, removed 0 selfloop flow, removed 9 redundant places. [2022-11-18 19:45:20,869 INFO L231 Difference]: Finished difference. Result has 226 places, 227 transitions, 719 flow [2022-11-18 19:45:20,870 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=719, PETRI_PLACES=226, PETRI_TRANSITIONS=227} [2022-11-18 19:45:20,870 INFO L288 CegarLoopForPetriNet]: 219 programPoint places, 7 predicate places. [2022-11-18 19:45:20,871 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 227 transitions, 719 flow [2022-11-18 19:45:20,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 150.61111111111111) internal successors, (2711), 18 states have internal predecessors, (2711), 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 19:45:20,872 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:45:20,872 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] [2022-11-18 19:45:20,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fa5798e-cfe0-4938-a6ec-9a79d3b53ebb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 19:45:21,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fa5798e-cfe0-4938-a6ec-9a79d3b53ebb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-11-18 19:45:21,079 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-11-18 19:45:21,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:45:21,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1599506789, now seen corresponding path program 1 times [2022-11-18 19:45:21,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:45:21,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018018055] [2022-11-18 19:45:21,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:45:21,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:45:21,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:45:21,278 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 19:45:21,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:45:21,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018018055] [2022-11-18 19:45:21,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018018055] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:45:21,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:45:21,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 19:45:21,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852182389] [2022-11-18 19:45:21,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:45:21,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:45:21,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:45:21,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:45:21,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:45:21,282 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 248 [2022-11-18 19:45:21,283 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 227 transitions, 719 flow. Second operand has 7 states, 7 states have (on average 160.28571428571428) internal successors, (1122), 7 states have internal predecessors, (1122), 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 19:45:21,283 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:45:21,284 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 248 [2022-11-18 19:45:21,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand