./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 4e7fbc69 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_03197f65-8d53-491f-a957-9445ea7e5f33/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03197f65-8d53-491f-a957-9445ea7e5f33/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03197f65-8d53-491f-a957-9445ea7e5f33/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03197f65-8d53-491f-a957-9445ea7e5f33/bin/uautomizer-QkZJyEgLgS/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_03197f65-8d53-491f-a957-9445ea7e5f33/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03197f65-8d53-491f-a957-9445ea7e5f33/bin/uautomizer-QkZJyEgLgS --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-4e7fbc6 [2022-11-23 02:15:44,283 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 02:15:44,286 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 02:15:44,314 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 02:15:44,315 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 02:15:44,319 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 02:15:44,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 02:15:44,325 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 02:15:44,327 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 02:15:44,334 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 02:15:44,337 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 02:15:44,339 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 02:15:44,340 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 02:15:44,342 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 02:15:44,344 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 02:15:44,349 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 02:15:44,350 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 02:15:44,352 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 02:15:44,353 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 02:15:44,357 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 02:15:44,358 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 02:15:44,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 02:15:44,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 02:15:44,362 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 02:15:44,365 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 02:15:44,365 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 02:15:44,365 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 02:15:44,366 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 02:15:44,367 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 02:15:44,368 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 02:15:44,368 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 02:15:44,369 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 02:15:44,370 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 02:15:44,371 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 02:15:44,375 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 02:15:44,376 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 02:15:44,377 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 02:15:44,377 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 02:15:44,378 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 02:15:44,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 02:15:44,379 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 02:15:44,380 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03197f65-8d53-491f-a957-9445ea7e5f33/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-23 02:15:44,425 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 02:15:44,425 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 02:15:44,426 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 02:15:44,426 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 02:15:44,427 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 02:15:44,427 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 02:15:44,428 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 02:15:44,428 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 02:15:44,428 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 02:15:44,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 02:15:44,430 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 02:15:44,430 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 02:15:44,430 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 02:15:44,431 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 02:15:44,431 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 02:15:44,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 02:15:44,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 02:15:44,432 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 02:15:44,432 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 02:15:44,432 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 02:15:44,432 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 02:15:44,432 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 02:15:44,433 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 02:15:44,433 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 02:15:44,433 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 02:15:44,433 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 02:15:44,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:15:44,434 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 02:15:44,435 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 02:15:44,435 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 02:15:44,435 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 02:15:44,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 02:15:44,436 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 02:15:44,436 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 02:15:44,436 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 02:15:44,436 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 02:15:44,437 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_03197f65-8d53-491f-a957-9445ea7e5f33/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03197f65-8d53-491f-a957-9445ea7e5f33/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9eb5d9094342cfaa74d8ea4903febd735be5757c093d69b0f8dbb2a26886fda6 [2022-11-23 02:15:44,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 02:15:44,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 02:15:44,758 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 02:15:44,759 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 02:15:44,760 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 02:15:44,761 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03197f65-8d53-491f-a957-9445ea7e5f33/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c [2022-11-23 02:15:47,839 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 02:15:48,129 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 02:15:48,130 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03197f65-8d53-491f-a957-9445ea7e5f33/sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c [2022-11-23 02:15:48,140 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03197f65-8d53-491f-a957-9445ea7e5f33/bin/uautomizer-QkZJyEgLgS/data/a5f425012/ee2432ad2cf84946994c2ddd14fac02a/FLAGfc8c6bf9e [2022-11-23 02:15:48,163 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03197f65-8d53-491f-a957-9445ea7e5f33/bin/uautomizer-QkZJyEgLgS/data/a5f425012/ee2432ad2cf84946994c2ddd14fac02a [2022-11-23 02:15:48,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 02:15:48,167 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 02:15:48,168 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 02:15:48,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 02:15:48,173 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 02:15:48,174 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:15:48" (1/1) ... [2022-11-23 02:15:48,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49a29adc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:48, skipping insertion in model container [2022-11-23 02:15:48,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:15:48" (1/1) ... [2022-11-23 02:15:48,183 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 02:15:48,212 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 02:15:48,455 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03197f65-8d53-491f-a957-9445ea7e5f33/sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c[2599,2612] [2022-11-23 02:15:48,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:15:48,482 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 02:15:48,534 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03197f65-8d53-491f-a957-9445ea7e5f33/sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c[2599,2612] [2022-11-23 02:15:48,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:15:48,558 INFO L208 MainTranslator]: Completed translation [2022-11-23 02:15:48,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:48 WrapperNode [2022-11-23 02:15:48,559 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 02:15:48,561 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 02:15:48,561 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 02:15:48,561 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 02:15:48,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:48" (1/1) ... [2022-11-23 02:15:48,600 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:48" (1/1) ... [2022-11-23 02:15:48,651 INFO L138 Inliner]: procedures = 25, calls = 52, calls flagged for inlining = 16, calls inlined = 28, statements flattened = 365 [2022-11-23 02:15:48,653 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 02:15:48,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 02:15:48,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 02:15:48,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 02:15:48,665 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:48" (1/1) ... [2022-11-23 02:15:48,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:48" (1/1) ... [2022-11-23 02:15:48,680 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:48" (1/1) ... [2022-11-23 02:15:48,680 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:48" (1/1) ... [2022-11-23 02:15:48,689 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:48" (1/1) ... [2022-11-23 02:15:48,709 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:48" (1/1) ... [2022-11-23 02:15:48,711 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:48" (1/1) ... [2022-11-23 02:15:48,713 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:48" (1/1) ... [2022-11-23 02:15:48,716 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 02:15:48,717 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 02:15:48,717 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 02:15:48,717 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 02:15:48,718 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:48" (1/1) ... [2022-11-23 02:15:48,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:15:48,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03197f65-8d53-491f-a957-9445ea7e5f33/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:15:48,771 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03197f65-8d53-491f-a957-9445ea7e5f33/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 02:15:48,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03197f65-8d53-491f-a957-9445ea7e5f33/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 02:15:48,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 02:15:48,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 02:15:48,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 02:15:48,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 02:15:48,829 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-23 02:15:48,830 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-23 02:15:48,830 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-23 02:15:48,830 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-23 02:15:48,830 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-23 02:15:48,831 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-23 02:15:48,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 02:15:48,831 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-23 02:15:48,831 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-23 02:15:48,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 02:15:48,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 02:15:48,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 02:15:48,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 02:15:48,834 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 02:15:48,979 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 02:15:48,981 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 02:15:49,853 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 02:15:51,314 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 02:15:51,315 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-23 02:15:51,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:15:51 BoogieIcfgContainer [2022-11-23 02:15:51,318 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 02:15:51,320 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 02:15:51,320 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 02:15:51,324 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 02:15:51,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:15:48" (1/3) ... [2022-11-23 02:15:51,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13d65b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:15:51, skipping insertion in model container [2022-11-23 02:15:51,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:48" (2/3) ... [2022-11-23 02:15:51,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13d65b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:15:51, skipping insertion in model container [2022-11-23 02:15:51,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:15:51" (3/3) ... [2022-11-23 02:15:51,327 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum2.wvr.c [2022-11-23 02:15:51,337 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 02:15:51,348 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 02:15:51,349 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 46 error locations. [2022-11-23 02:15:51,349 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 02:15:51,803 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-23 02:15:51,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 242 places, 248 transitions, 520 flow [2022-11-23 02:15:51,981 INFO L130 PetriNetUnfolder]: 16/245 cut-off events. [2022-11-23 02:15:51,982 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-23 02:15:51,991 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. [2022-11-23 02:15:51,991 INFO L82 GeneralOperation]: Start removeDead. Operand has 242 places, 248 transitions, 520 flow [2022-11-23 02:15:52,006 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 219 places, 224 transitions, 463 flow [2022-11-23 02:15:52,010 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 02:15:52,040 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 219 places, 224 transitions, 463 flow [2022-11-23 02:15:52,048 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 219 places, 224 transitions, 463 flow [2022-11-23 02:15:52,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 219 places, 224 transitions, 463 flow [2022-11-23 02:15:52,200 INFO L130 PetriNetUnfolder]: 15/224 cut-off events. [2022-11-23 02:15:52,200 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-23 02:15:52,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 224 events. 15/224 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 370 event pairs, 0 based on Foata normal form. 0/163 useless extension candidates. Maximal degree in co-relation 192. Up to 2 conditions per place. [2022-11-23 02:15:52,209 INFO L119 LiptonReduction]: Number of co-enabled transitions 5928 [2022-11-23 02:16:49,382 INFO L134 LiptonReduction]: Checked pairs total: 8080 [2022-11-23 02:16:49,383 INFO L136 LiptonReduction]: Total number of compositions: 239 [2022-11-23 02:16:49,399 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 02:16:49,405 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;@634caa1a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 02:16:49,406 INFO L358 AbstractCegarLoop]: Starting to check reachability of 91 error locations. [2022-11-23 02:16:49,408 INFO L130 PetriNetUnfolder]: 1/2 cut-off events. [2022-11-23 02:16:49,409 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:16:49,409 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:16:49,409 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-11-23 02:16:49,410 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-11-23 02:16:49,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:16:49,415 INFO L85 PathProgramCache]: Analyzing trace with hash 56443, now seen corresponding path program 1 times [2022-11-23 02:16:49,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:16:49,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751297384] [2022-11-23 02:16:49,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:16:49,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:16:49,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:16:49,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:16:49,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:16:49,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751297384] [2022-11-23 02:16:49,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751297384] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:16:49,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:16:49,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 02:16:49,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977238320] [2022-11-23 02:16:49,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:16:49,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 02:16:49,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:16:49,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:16:49,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:16:49,909 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 487 [2022-11-23 02:16:49,916 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 70 transitions, 155 flow. Second operand has 3 states, 3 states have (on average 185.66666666666666) internal successors, (557), 3 states have internal predecessors, (557), 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) [2022-11-23 02:16:49,916 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:16:49,916 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 487 [2022-11-23 02:16:49,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:17:01,353 INFO L130 PetriNetUnfolder]: 26483/32873 cut-off events. [2022-11-23 02:17:01,353 INFO L131 PetriNetUnfolder]: For 332/332 co-relation queries the response was YES. [2022-11-23 02:17:01,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66281 conditions, 32873 events. 26483/32873 cut-off events. For 332/332 co-relation queries the response was YES. Maximal size of possible extension queue 3351. Compared 171348 event pairs, 12974 based on Foata normal form. 0/6518 useless extension candidates. Maximal degree in co-relation 30621. Up to 16307 conditions per place. [2022-11-23 02:17:01,579 INFO L137 encePairwiseOnDemand]: 461/487 looper letters, 89 selfloop transitions, 4 changer transitions 0/96 dead transitions. [2022-11-23 02:17:01,579 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 96 transitions, 408 flow [2022-11-23 02:17:01,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:17:01,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 02:17:01,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 688 transitions. [2022-11-23 02:17:01,603 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47091033538672145 [2022-11-23 02:17:01,604 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 688 transitions. [2022-11-23 02:17:01,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 688 transitions. [2022-11-23 02:17:01,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:17:01,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 688 transitions. [2022-11-23 02:17:01,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 229.33333333333334) internal successors, (688), 3 states have internal predecessors, (688), 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) [2022-11-23 02:17:01,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 487.0) internal successors, (1948), 4 states have internal predecessors, (1948), 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) [2022-11-23 02:17:01,632 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 487.0) internal successors, (1948), 4 states have internal predecessors, (1948), 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) [2022-11-23 02:17:01,634 INFO L175 Difference]: Start difference. First operand has 75 places, 70 transitions, 155 flow. Second operand 3 states and 688 transitions. [2022-11-23 02:17:01,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 96 transitions, 408 flow [2022-11-23 02:17:01,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 96 transitions, 390 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-23 02:17:01,785 INFO L231 Difference]: Finished difference. Result has 56 places, 55 transitions, 146 flow [2022-11-23 02:17:01,787 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=487, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=146, PETRI_PLACES=56, PETRI_TRANSITIONS=55} [2022-11-23 02:17:01,791 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, -19 predicate places. [2022-11-23 02:17:01,792 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 55 transitions, 146 flow [2022-11-23 02:17:01,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 185.66666666666666) internal successors, (557), 3 states have internal predecessors, (557), 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) [2022-11-23 02:17:01,794 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:17:01,795 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-23 02:17:01,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 02:17:01,798 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-11-23 02:17:01,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:17:01,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1751802, now seen corresponding path program 1 times [2022-11-23 02:17:01,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:17:01,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171328686] [2022-11-23 02:17:01,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:17:01,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:17:01,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:01,952 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:17:01,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:17:01,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171328686] [2022-11-23 02:17:01,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171328686] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:17:01,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:17:01,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 02:17:01,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899636160] [2022-11-23 02:17:01,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:17:01,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 02:17:01,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:17:01,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:17:01,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:17:01,988 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 487 [2022-11-23 02:17:01,989 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 55 transitions, 146 flow. Second operand has 3 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 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) [2022-11-23 02:17:01,989 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:17:01,989 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 487 [2022-11-23 02:17:01,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:17:11,830 INFO L130 PetriNetUnfolder]: 26483/32871 cut-off events. [2022-11-23 02:17:11,830 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-11-23 02:17:11,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66001 conditions, 32871 events. 26483/32871 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 3990. Compared 173204 event pairs, 12974 based on Foata normal form. 0/6401 useless extension candidates. Maximal degree in co-relation 32989. Up to 32605 conditions per place. [2022-11-23 02:17:12,011 INFO L137 encePairwiseOnDemand]: 484/487 looper letters, 49 selfloop transitions, 1 changer transitions 0/53 dead transitions. [2022-11-23 02:17:12,012 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 53 transitions, 238 flow [2022-11-23 02:17:12,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:17:12,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 02:17:12,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 604 transitions. [2022-11-23 02:17:12,015 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4134154688569473 [2022-11-23 02:17:12,015 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 604 transitions. [2022-11-23 02:17:12,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 604 transitions. [2022-11-23 02:17:12,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:17:12,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 604 transitions. [2022-11-23 02:17:12,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 201.33333333333334) internal successors, (604), 3 states have internal predecessors, (604), 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) [2022-11-23 02:17:12,021 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 487.0) internal successors, (1948), 4 states have internal predecessors, (1948), 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) [2022-11-23 02:17:12,022 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 487.0) internal successors, (1948), 4 states have internal predecessors, (1948), 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) [2022-11-23 02:17:12,022 INFO L175 Difference]: Start difference. First operand has 56 places, 55 transitions, 146 flow. Second operand 3 states and 604 transitions. [2022-11-23 02:17:12,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 53 transitions, 238 flow [2022-11-23 02:17:12,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 53 transitions, 230 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 02:17:12,026 INFO L231 Difference]: Finished difference. Result has 54 places, 53 transitions, 132 flow [2022-11-23 02:17:12,027 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=487, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=132, PETRI_PLACES=54, PETRI_TRANSITIONS=53} [2022-11-23 02:17:12,027 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, -21 predicate places. [2022-11-23 02:17:12,028 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 53 transitions, 132 flow [2022-11-23 02:17:12,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 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) [2022-11-23 02:17:12,029 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:17:12,029 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-23 02:17:12,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 02:17:12,030 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-11-23 02:17:12,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:17:12,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1751813, now seen corresponding path program 1 times [2022-11-23 02:17:12,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:17:12,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073189890] [2022-11-23 02:17:12,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:17:12,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:17:12,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:12,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:17:12,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:17:12,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073189890] [2022-11-23 02:17:12,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073189890] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 02:17:12,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [272574292] [2022-11-23 02:17:12,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:17:12,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:17:12,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03197f65-8d53-491f-a957-9445ea7e5f33/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:17:12,187 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03197f65-8d53-491f-a957-9445ea7e5f33/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 02:17:12,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03197f65-8d53-491f-a957-9445ea7e5f33/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 02:17:12,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:12,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 02:17:12,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:17:12,728 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:17:12,728 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 02:17:12,747 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:17:12,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [272574292] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 02:17:12,748 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 02:17:12,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2022-11-23 02:17:12,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674486082] [2022-11-23 02:17:12,749 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 02:17:12,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 02:17:12,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:17:12,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 02:17:12,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-23 02:17:12,839 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 487 [2022-11-23 02:17:12,841 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 53 transitions, 132 flow. Second operand has 7 states, 7 states have (on average 186.14285714285714) internal successors, (1303), 7 states have internal predecessors, (1303), 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) [2022-11-23 02:17:12,842 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:17:12,842 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 487 [2022-11-23 02:17:12,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand