./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26847849-78fa-4b7b-90d4-045084bf1584/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26847849-78fa-4b7b-90d4-045084bf1584/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_26847849-78fa-4b7b-90d4-045084bf1584/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26847849-78fa-4b7b-90d4-045084bf1584/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26847849-78fa-4b7b-90d4-045084bf1584/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_26847849-78fa-4b7b-90d4-045084bf1584/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 54b834084fe1393c06cef2b14fb31f788537bd44a8744d5b4241cffc72e1d744 --- 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 19:55:02,195 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:55:02,197 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:55:02,240 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:55:02,240 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:55:02,245 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:55:02,247 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:55:02,248 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:55:02,250 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:55:02,251 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:55:02,252 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:55:02,253 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:55:02,253 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:55:02,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:55:02,263 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:55:02,264 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:55:02,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:55:02,272 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:55:02,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:55:02,280 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:55:02,281 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:55:02,285 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:55:02,288 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:55:02,289 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:55:02,299 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:55:02,299 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:55:02,300 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:55:02,301 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:55:02,301 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:55:02,302 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:55:02,302 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:55:02,303 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:55:02,304 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:55:02,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:55:02,306 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:55:02,306 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:55:02,307 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:55:02,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:55:02,311 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:55:02,312 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:55:02,313 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:55:02,314 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26847849-78fa-4b7b-90d4-045084bf1584/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 19:55:02,355 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:55:02,356 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:55:02,356 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:55:02,356 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:55:02,357 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:55:02,358 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:55:02,358 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:55:02,359 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:55:02,359 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:55:02,359 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:55:02,360 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:55:02,360 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:55:02,361 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:55:02,361 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:55:02,361 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:55:02,361 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:55:02,361 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:55:02,362 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:55:02,362 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 19:55:02,362 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:55:02,362 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:55:02,363 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:55:02,363 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:55:02,363 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:55:02,363 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:55:02,363 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:55:02,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:55:02,364 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:55:02,364 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:55:02,364 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:55:02,365 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:55:02,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:55:02,366 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:55:02,366 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:55:02,366 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:55:02,367 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_26847849-78fa-4b7b-90d4-045084bf1584/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26847849-78fa-4b7b-90d4-045084bf1584/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54b834084fe1393c06cef2b14fb31f788537bd44a8744d5b4241cffc72e1d744 [2022-11-18 19:55:02,692 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:55:02,732 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:55:02,734 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:55:02,736 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:55:02,737 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:55:02,738 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26847849-78fa-4b7b-90d4-045084bf1584/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c [2022-11-18 19:55:02,820 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26847849-78fa-4b7b-90d4-045084bf1584/bin/uautomizer-TMbwUNV5ro/data/ad03ead87/64dc255720494d0490f3d8cea5e0cbae/FLAG16304c614 [2022-11-18 19:55:03,367 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:55:03,367 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26847849-78fa-4b7b-90d4-045084bf1584/sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c [2022-11-18 19:55:03,379 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26847849-78fa-4b7b-90d4-045084bf1584/bin/uautomizer-TMbwUNV5ro/data/ad03ead87/64dc255720494d0490f3d8cea5e0cbae/FLAG16304c614 [2022-11-18 19:55:03,677 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26847849-78fa-4b7b-90d4-045084bf1584/bin/uautomizer-TMbwUNV5ro/data/ad03ead87/64dc255720494d0490f3d8cea5e0cbae [2022-11-18 19:55:03,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:55:03,682 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:55:03,685 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:55:03,686 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:55:03,689 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:55:03,690 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:55:03" (1/1) ... [2022-11-18 19:55:03,691 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@326a4952 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:03, skipping insertion in model container [2022-11-18 19:55:03,692 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:55:03" (1/1) ... [2022-11-18 19:55:03,701 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:55:03,738 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:55:04,013 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_26847849-78fa-4b7b-90d4-045084bf1584/sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c[3642,3655] [2022-11-18 19:55:04,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:55:04,037 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:55:04,071 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_26847849-78fa-4b7b-90d4-045084bf1584/sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c[3642,3655] [2022-11-18 19:55:04,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:55:04,095 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:55:04,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:04 WrapperNode [2022-11-18 19:55:04,095 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:55:04,096 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:55:04,096 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:55:04,096 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:55:04,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:04" (1/1) ... [2022-11-18 19:55:04,112 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:04" (1/1) ... [2022-11-18 19:55:04,158 INFO L138 Inliner]: procedures = 27, calls = 68, calls flagged for inlining = 18, calls inlined = 24, statements flattened = 365 [2022-11-18 19:55:04,164 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:55:04,165 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:55:04,165 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:55:04,165 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:55:04,175 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:04" (1/1) ... [2022-11-18 19:55:04,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:04" (1/1) ... [2022-11-18 19:55:04,194 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:04" (1/1) ... [2022-11-18 19:55:04,197 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:04" (1/1) ... [2022-11-18 19:55:04,216 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:04" (1/1) ... [2022-11-18 19:55:04,240 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:04" (1/1) ... [2022-11-18 19:55:04,243 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:04" (1/1) ... [2022-11-18 19:55:04,246 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:04" (1/1) ... [2022-11-18 19:55:04,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:55:04,259 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:55:04,259 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:55:04,260 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:55:04,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:04" (1/1) ... [2022-11-18 19:55:04,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:55:04,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26847849-78fa-4b7b-90d4-045084bf1584/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:55:04,300 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26847849-78fa-4b7b-90d4-045084bf1584/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:55:04,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26847849-78fa-4b7b-90d4-045084bf1584/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:55:04,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:55:04,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:55:04,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:55:04,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:55:04,356 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 19:55:04,358 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 19:55:04,358 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 19:55:04,358 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 19:55:04,358 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 19:55:04,359 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 19:55:04,359 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-18 19:55:04,359 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-18 19:55:04,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:55:04,359 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 19:55:04,360 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 19:55:04,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 19:55:04,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:55:04,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:55:04,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:55:04,362 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 19:55:04,505 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:55:04,507 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:55:05,314 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:55:05,866 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:55:05,866 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-18 19:55:05,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:55:05 BoogieIcfgContainer [2022-11-18 19:55:05,870 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:55:05,874 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:55:05,874 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:55:05,878 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:55:05,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:55:03" (1/3) ... [2022-11-18 19:55:05,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca1b24c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:55:05, skipping insertion in model container [2022-11-18 19:55:05,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:04" (2/3) ... [2022-11-18 19:55:05,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca1b24c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:55:05, skipping insertion in model container [2022-11-18 19:55:05,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:55:05" (3/3) ... [2022-11-18 19:55:05,882 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1.wvr.c [2022-11-18 19:55:05,896 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 19:55:05,908 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:55:05,909 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2022-11-18 19:55:05,909 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 19:55:06,216 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-18 19:55:06,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 243 places, 245 transitions, 522 flow [2022-11-18 19:55:06,419 INFO L130 PetriNetUnfolder]: 15/241 cut-off events. [2022-11-18 19:55:06,419 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-18 19:55:06,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 241 events. 15/241 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 259 event pairs, 0 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 194. Up to 2 conditions per place. [2022-11-18 19:55:06,426 INFO L82 GeneralOperation]: Start removeDead. Operand has 243 places, 245 transitions, 522 flow [2022-11-18 19:55:06,434 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 217 places, 218 transitions, 457 flow [2022-11-18 19:55:06,445 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:55:06,453 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;@1e91d5c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:55:06,454 INFO L358 AbstractCegarLoop]: Starting to check reachability of 72 error locations. [2022-11-18 19:55:06,470 INFO L130 PetriNetUnfolder]: 1/61 cut-off events. [2022-11-18 19:55:06,470 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:55:06,471 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:55:06,471 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] [2022-11-18 19:55:06,472 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2022-11-18 19:55:06,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:55:06,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1044644534, now seen corresponding path program 1 times [2022-11-18 19:55:06,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:55:06,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103269191] [2022-11-18 19:55:06,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:55:06,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:55:06,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:06,994 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 19:55:06,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:55:06,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103269191] [2022-11-18 19:55:06,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103269191] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:55:06,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:55:06,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:55:07,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386404009] [2022-11-18 19:55:07,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:55:07,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:55:07,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:55:07,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:55:07,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:55:07,065 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 245 [2022-11-18 19:55:07,075 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 218 transitions, 457 flow. Second operand has 5 states, 5 states have (on average 155.4) internal successors, (777), 5 states have internal predecessors, (777), 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 19:55:07,076 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:55:07,076 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 245 [2022-11-18 19:55:07,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:55:12,399 INFO L130 PetriNetUnfolder]: 9473/12832 cut-off events. [2022-11-18 19:55:12,400 INFO L131 PetriNetUnfolder]: For 1597/1599 co-relation queries the response was YES. [2022-11-18 19:55:12,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26734 conditions, 12832 events. 9473/12832 cut-off events. For 1597/1599 co-relation queries the response was YES. Maximal size of possible extension queue 1361. Compared 76244 event pairs, 7776 based on Foata normal form. 1701/5999 useless extension candidates. Maximal degree in co-relation 26156. Up to 12692 conditions per place. [2022-11-18 19:55:12,555 INFO L137 encePairwiseOnDemand]: 218/245 looper letters, 52 selfloop transitions, 5 changer transitions 4/196 dead transitions. [2022-11-18 19:55:12,555 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 196 transitions, 535 flow [2022-11-18 19:55:12,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:55:12,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 19:55:12,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 853 transitions. [2022-11-18 19:55:12,575 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6963265306122449 [2022-11-18 19:55:12,576 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 853 transitions. [2022-11-18 19:55:12,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 853 transitions. [2022-11-18 19:55:12,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:55:12,583 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 853 transitions. [2022-11-18 19:55:12,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 170.6) internal successors, (853), 5 states have internal predecessors, (853), 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 19:55:12,599 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 245.0) internal successors, (1470), 6 states have internal predecessors, (1470), 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 19:55:12,601 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 245.0) internal successors, (1470), 6 states have internal predecessors, (1470), 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 19:55:12,603 INFO L175 Difference]: Start difference. First operand has 217 places, 218 transitions, 457 flow. Second operand 5 states and 853 transitions. [2022-11-18 19:55:12,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 196 transitions, 535 flow [2022-11-18 19:55:12,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 196 transitions, 522 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-11-18 19:55:12,618 INFO L231 Difference]: Finished difference. Result has 201 places, 192 transitions, 402 flow [2022-11-18 19:55:12,621 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=402, PETRI_PLACES=201, PETRI_TRANSITIONS=192} [2022-11-18 19:55:12,626 INFO L288 CegarLoopForPetriNet]: 217 programPoint places, -16 predicate places. [2022-11-18 19:55:12,627 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 192 transitions, 402 flow [2022-11-18 19:55:12,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 155.4) internal successors, (777), 5 states have internal predecessors, (777), 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 19:55:12,628 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:55:12,628 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] [2022-11-18 19:55:12,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:55:12,629 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2022-11-18 19:55:12,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:55:12,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1975758881, now seen corresponding path program 1 times [2022-11-18 19:55:12,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:55:12,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963293727] [2022-11-18 19:55:12,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:55:12,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:55:12,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:12,874 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 19:55:12,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:55:12,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963293727] [2022-11-18 19:55:12,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963293727] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:55:12,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:55:12,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:55:12,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200172744] [2022-11-18 19:55:12,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:55:12,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:55:12,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:55:12,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:55:12,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:55:12,888 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 245 [2022-11-18 19:55:12,890 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 192 transitions, 402 flow. Second operand has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 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 19:55:12,890 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:55:12,891 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 245 [2022-11-18 19:55:12,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:55:16,811 INFO L130 PetriNetUnfolder]: 9473/12827 cut-off events. [2022-11-18 19:55:16,812 INFO L131 PetriNetUnfolder]: For 401/403 co-relation queries the response was YES. [2022-11-18 19:55:16,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26258 conditions, 12827 events. 9473/12827 cut-off events. For 401/403 co-relation queries the response was YES. Maximal size of possible extension queue 1361. Compared 76504 event pairs, 7776 based on Foata normal form. 0/4298 useless extension candidates. Maximal degree in co-relation 26186. Up to 12678 conditions per place. [2022-11-18 19:55:16,907 INFO L137 encePairwiseOnDemand]: 241/245 looper letters, 41 selfloop transitions, 3 changer transitions 0/191 dead transitions. [2022-11-18 19:55:16,907 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 191 transitions, 488 flow [2022-11-18 19:55:16,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:55:16,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 19:55:16,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 741 transitions. [2022-11-18 19:55:16,911 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7561224489795918 [2022-11-18 19:55:16,911 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 741 transitions. [2022-11-18 19:55:16,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 741 transitions. [2022-11-18 19:55:16,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:55:16,912 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 741 transitions. [2022-11-18 19:55:16,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 185.25) internal successors, (741), 4 states have internal predecessors, (741), 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 19:55:16,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 245.0) internal successors, (1225), 5 states have internal predecessors, (1225), 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 19:55:16,919 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 245.0) internal successors, (1225), 5 states have internal predecessors, (1225), 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 19:55:16,919 INFO L175 Difference]: Start difference. First operand has 201 places, 192 transitions, 402 flow. Second operand 4 states and 741 transitions. [2022-11-18 19:55:16,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 191 transitions, 488 flow [2022-11-18 19:55:16,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 191 transitions, 478 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 19:55:16,924 INFO L231 Difference]: Finished difference. Result has 195 places, 191 transitions, 396 flow [2022-11-18 19:55:16,925 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=396, PETRI_PLACES=195, PETRI_TRANSITIONS=191} [2022-11-18 19:55:16,926 INFO L288 CegarLoopForPetriNet]: 217 programPoint places, -22 predicate places. [2022-11-18 19:55:16,926 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 191 transitions, 396 flow [2022-11-18 19:55:16,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 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 19:55:16,927 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:55:16,927 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:55:16,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:55:16,928 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2022-11-18 19:55:16,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:55:16,928 INFO L85 PathProgramCache]: Analyzing trace with hash -197079435, now seen corresponding path program 1 times [2022-11-18 19:55:16,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:55:16,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62675936] [2022-11-18 19:55:16,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:55:16,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:55:16,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:17,103 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 19:55:17,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:55:17,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62675936] [2022-11-18 19:55:17,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62675936] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:55:17,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:55:17,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:55:17,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801998009] [2022-11-18 19:55:17,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:55:17,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:55:17,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:55:17,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:55:17,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:55:17,107 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 245 [2022-11-18 19:55:17,108 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 191 transitions, 396 flow. Second operand has 4 states, 4 states have (on average 175.5) internal successors, (702), 4 states have internal predecessors, (702), 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 19:55:17,109 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:55:17,109 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 245 [2022-11-18 19:55:17,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:55:23,549 INFO L130 PetriNetUnfolder]: 18945/25570 cut-off events. [2022-11-18 19:55:23,549 INFO L131 PetriNetUnfolder]: For 798/802 co-relation queries the response was YES. [2022-11-18 19:55:23,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52424 conditions, 25570 events. 18945/25570 cut-off events. For 798/802 co-relation queries the response was YES. Maximal size of possible extension queue 1657. Compared 159670 event pairs, 15552 based on Foata normal form. 0/8514 useless extension candidates. Maximal degree in co-relation 52365. Up to 12684 conditions per place. [2022-11-18 19:55:23,752 INFO L137 encePairwiseOnDemand]: 239/245 looper letters, 86 selfloop transitions, 4 changer transitions 0/234 dead transitions. [2022-11-18 19:55:23,754 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 234 transitions, 670 flow [2022-11-18 19:55:23,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:55:23,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 19:55:23,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 962 transitions. [2022-11-18 19:55:23,758 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7853061224489796 [2022-11-18 19:55:23,758 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 962 transitions. [2022-11-18 19:55:23,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 962 transitions. [2022-11-18 19:55:23,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:55:23,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 962 transitions. [2022-11-18 19:55:23,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 192.4) internal successors, (962), 5 states have internal predecessors, (962), 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 19:55:23,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 245.0) internal successors, (1470), 6 states have internal predecessors, (1470), 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 19:55:23,766 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 245.0) internal successors, (1470), 6 states have internal predecessors, (1470), 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 19:55:23,766 INFO L175 Difference]: Start difference. First operand has 195 places, 191 transitions, 396 flow. Second operand 5 states and 962 transitions. [2022-11-18 19:55:23,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 234 transitions, 670 flow [2022-11-18 19:55:23,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 234 transitions, 664 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 19:55:23,771 INFO L231 Difference]: Finished difference. Result has 199 places, 194 transitions, 420 flow [2022-11-18 19:55:23,772 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=420, PETRI_PLACES=199, PETRI_TRANSITIONS=194} [2022-11-18 19:55:23,774 INFO L288 CegarLoopForPetriNet]: 217 programPoint places, -18 predicate places. [2022-11-18 19:55:23,774 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 194 transitions, 420 flow [2022-11-18 19:55:23,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 175.5) internal successors, (702), 4 states have internal predecessors, (702), 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 19:55:23,775 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:55:23,776 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:55:23,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:55:23,777 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2022-11-18 19:55:23,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:55:23,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1074966877, now seen corresponding path program 1 times [2022-11-18 19:55:23,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:55:23,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573243150] [2022-11-18 19:55:23,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:55:23,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:55:23,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:23,990 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 19:55:23,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:55:23,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573243150] [2022-11-18 19:55:23,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573243150] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:55:23,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45261952] [2022-11-18 19:55:23,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:55:23,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:55:23,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26847849-78fa-4b7b-90d4-045084bf1584/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:55:23,995 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26847849-78fa-4b7b-90d4-045084bf1584/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:55:23,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26847849-78fa-4b7b-90d4-045084bf1584/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 19:55:24,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:24,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:55:24,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:55:24,304 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 19:55:24,305 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:55:24,371 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 19:55:24,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45261952] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:55:24,372 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:55:24,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-18 19:55:24,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882625040] [2022-11-18 19:55:24,373 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:55:24,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:55:24,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:55:24,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:55:24,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:55:24,377 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 245 [2022-11-18 19:55:24,379 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 194 transitions, 420 flow. Second operand has 12 states, 12 states have (on average 176.66666666666666) internal successors, (2120), 12 states have internal predecessors, (2120), 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 19:55:24,380 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:55:24,380 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 245 [2022-11-18 19:55:24,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand