./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5e519f3a 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_2cb64b23-9763-44a2-9299-1f7eed41c13e/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb64b23-9763-44a2-9299-1f7eed41c13e/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb64b23-9763-44a2-9299-1f7eed41c13e/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb64b23-9763-44a2-9299-1f7eed41c13e/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb64b23-9763-44a2-9299-1f7eed41c13e/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb64b23-9763-44a2-9299-1f7eed41c13e/bin/uautomizer-Dbtcem3rbc --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 c0b350b5c7953744a22c8334b20c4dc8efdff09f1ecb36de8b1744d1e20f0260 --- 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-5e519f3 [2022-11-02 20:21:02,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:21:02,299 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:21:02,356 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:21:02,357 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:21:02,363 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:21:02,365 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:21:02,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:21:02,373 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:21:02,377 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:21:02,378 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:21:02,380 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:21:02,380 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:21:02,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:21:02,383 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:21:02,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:21:02,386 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:21:02,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:21:02,389 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:21:02,401 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:21:02,404 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:21:02,406 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:21:02,412 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:21:02,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:21:02,418 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:21:02,419 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:21:02,419 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:21:02,422 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:21:02,423 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:21:02,424 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:21:02,425 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:21:02,427 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:21:02,429 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:21:02,431 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:21:02,433 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:21:02,433 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:21:02,434 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:21:02,435 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:21:02,435 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:21:02,436 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:21:02,437 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:21:02,438 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb64b23-9763-44a2-9299-1f7eed41c13e/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-02 20:21:02,491 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:21:02,491 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:21:02,492 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:21:02,493 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:21:02,494 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:21:02,494 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:21:02,495 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:21:02,496 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:21:02,496 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:21:02,496 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:21:02,498 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:21:02,498 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:21:02,499 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:21:02,499 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:21:02,499 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:21:02,500 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:21:02,500 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:21:02,500 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:21:02,500 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-02 20:21:02,501 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:21:02,501 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:21:02,501 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:21:02,502 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:21:02,502 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:21:02,502 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:21:02,503 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:21:02,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:21:02,503 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:21:02,504 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:21:02,504 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:21:02,504 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:21:02,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:21:02,505 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:21:02,506 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_2cb64b23-9763-44a2-9299-1f7eed41c13e/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb64b23-9763-44a2-9299-1f7eed41c13e/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0b350b5c7953744a22c8334b20c4dc8efdff09f1ecb36de8b1744d1e20f0260 [2022-11-02 20:21:02,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:21:03,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:21:03,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:21:03,012 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:21:03,013 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:21:03,014 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb64b23-9763-44a2-9299-1f7eed41c13e/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c [2022-11-02 20:21:03,109 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb64b23-9763-44a2-9299-1f7eed41c13e/bin/uautomizer-Dbtcem3rbc/data/6a533ed69/3e8376a431194d1d96a4872a64b55754/FLAG83a62d2d6 [2022-11-02 20:21:03,759 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:21:03,760 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb64b23-9763-44a2-9299-1f7eed41c13e/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c [2022-11-02 20:21:03,772 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb64b23-9763-44a2-9299-1f7eed41c13e/bin/uautomizer-Dbtcem3rbc/data/6a533ed69/3e8376a431194d1d96a4872a64b55754/FLAG83a62d2d6 [2022-11-02 20:21:04,091 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb64b23-9763-44a2-9299-1f7eed41c13e/bin/uautomizer-Dbtcem3rbc/data/6a533ed69/3e8376a431194d1d96a4872a64b55754 [2022-11-02 20:21:04,096 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:21:04,098 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:21:04,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:21:04,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:21:04,106 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:21:04,107 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:21:04" (1/1) ... [2022-11-02 20:21:04,108 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33ff9b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:04, skipping insertion in model container [2022-11-02 20:21:04,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:21:04" (1/1) ... [2022-11-02 20:21:04,119 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:21:04,169 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:21:04,481 WARN L230 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_2cb64b23-9763-44a2-9299-1f7eed41c13e/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c[4225,4238] [2022-11-02 20:21:04,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:21:04,509 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:21:04,547 WARN L230 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_2cb64b23-9763-44a2-9299-1f7eed41c13e/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c[4225,4238] [2022-11-02 20:21:04,554 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:21:04,570 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:21:04,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:04 WrapperNode [2022-11-02 20:21:04,571 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:21:04,572 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:21:04,572 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:21:04,572 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:21:04,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:04" (1/1) ... [2022-11-02 20:21:04,594 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:04" (1/1) ... [2022-11-02 20:21:04,645 INFO L138 Inliner]: procedures = 29, calls = 88, calls flagged for inlining = 22, calls inlined = 32, statements flattened = 482 [2022-11-02 20:21:04,646 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:21:04,647 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:21:04,647 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:21:04,647 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:21:04,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:04" (1/1) ... [2022-11-02 20:21:04,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:04" (1/1) ... [2022-11-02 20:21:04,665 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:04" (1/1) ... [2022-11-02 20:21:04,666 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:04" (1/1) ... [2022-11-02 20:21:04,681 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:04" (1/1) ... [2022-11-02 20:21:04,689 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:04" (1/1) ... [2022-11-02 20:21:04,693 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:04" (1/1) ... [2022-11-02 20:21:04,695 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:04" (1/1) ... [2022-11-02 20:21:04,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:21:04,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:21:04,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:21:04,703 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:21:04,705 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:04" (1/1) ... [2022-11-02 20:21:04,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:21:04,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb64b23-9763-44a2-9299-1f7eed41c13e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:21:04,759 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb64b23-9763-44a2-9299-1f7eed41c13e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:21:04,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb64b23-9763-44a2-9299-1f7eed41c13e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:21:04,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:21:04,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:21:04,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:21:04,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:21:04,815 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-02 20:21:04,815 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-02 20:21:04,815 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-02 20:21:04,815 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-02 20:21:04,815 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-02 20:21:04,816 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-02 20:21:04,816 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-02 20:21:04,816 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-02 20:21:04,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:21:04,816 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-02 20:21:04,816 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-02 20:21:04,817 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-11-02 20:21:04,817 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-11-02 20:21:04,817 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-02 20:21:04,817 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-02 20:21:04,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:21:04,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:21:04,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:21:04,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:21:04,820 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:21:05,061 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:21:05,064 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:21:06,198 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:21:07,056 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:21:07,056 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-02 20:21:07,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:21:07 BoogieIcfgContainer [2022-11-02 20:21:07,060 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:21:07,062 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:21:07,063 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:21:07,067 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:21:07,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:21:04" (1/3) ... [2022-11-02 20:21:07,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c3e817d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:21:07, skipping insertion in model container [2022-11-02 20:21:07,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:04" (2/3) ... [2022-11-02 20:21:07,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c3e817d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:21:07, skipping insertion in model container [2022-11-02 20:21:07,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:21:07" (3/3) ... [2022-11-02 20:21:07,071 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-2.wvr.c [2022-11-02 20:21:07,083 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:21:07,096 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:21:07,097 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2022-11-02 20:21:07,097 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:21:07,496 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-11-02 20:21:07,622 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-02 20:21:07,644 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 370 places, 374 transitions, 820 flow [2022-11-02 20:21:07,650 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 370 places, 374 transitions, 820 flow [2022-11-02 20:21:07,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 370 places, 374 transitions, 820 flow [2022-11-02 20:21:07,949 INFO L130 PetriNetUnfolder]: 21/316 cut-off events. [2022-11-02 20:21:07,949 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-02 20:21:07,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 345 conditions, 316 events. 21/316 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 565 event pairs, 0 based on Foata normal form. 0/247 useless extension candidates. Maximal degree in co-relation 263. Up to 3 conditions per place. [2022-11-02 20:21:07,973 INFO L118 LiptonReduction]: Number of co-enabled transitions 16412 [2022-11-02 20:22:06,046 INFO L133 LiptonReduction]: Checked pairs total: 62769 [2022-11-02 20:22:06,046 INFO L135 LiptonReduction]: Total number of compositions: 390 [2022-11-02 20:22:06,056 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 147 places, 137 transitions, 346 flow [2022-11-02 20:22:15,698 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 165303 states, 157731 states have (on average 5.392357875116496) internal successors, (850542), 165302 states have internal predecessors, (850542), 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) [2022-11-02 20:22:15,744 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:22:15,763 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=FINITE_AUTOMATA, 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;@1546c2bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:22:15,764 INFO L358 AbstractCegarLoop]: Starting to check reachability of 102 error locations. [2022-11-02 20:22:16,034 INFO L276 IsEmpty]: Start isEmpty. Operand has 165303 states, 157731 states have (on average 5.392357875116496) internal successors, (850542), 165302 states have internal predecessors, (850542), 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) [2022-11-02 20:22:16,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-02 20:22:16,039 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:22:16,040 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-02 20:22:16,041 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2022-11-02 20:22:16,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:22:16,048 INFO L85 PathProgramCache]: Analyzing trace with hash 2209, now seen corresponding path program 1 times [2022-11-02 20:22:16,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:22:16,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941091148] [2022-11-02 20:22:16,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:22:16,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:22:16,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:16,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:22:16,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:22:16,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941091148] [2022-11-02 20:22:16,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941091148] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:22:16,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:22:16,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-02 20:22:16,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639550100] [2022-11-02 20:22:16,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:22:16,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 20:22:16,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:22:16,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 20:22:16,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:22:16,730 INFO L87 Difference]: Start difference. First operand has 165303 states, 157731 states have (on average 5.392357875116496) internal successors, (850542), 165302 states have internal predecessors, (850542), 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) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-02 20:22:20,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:22:20,166 INFO L93 Difference]: Finished difference Result 79589 states and 403460 transitions. [2022-11-02 20:22:20,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 20:22:20,170 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) Word has length 1 [2022-11-02 20:22:20,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:22:21,332 INFO L225 Difference]: With dead ends: 79589 [2022-11-02 20:22:21,332 INFO L226 Difference]: Without dead ends: 79589 [2022-11-02 20:22:21,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:22:21,339 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:22:21,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:22:22,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79589 states. [2022-11-02 20:22:26,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79589 to 79589. [2022-11-02 20:22:26,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79589 states, 76779 states have (on average 5.2548222821344375) internal successors, (403460), 79588 states have internal predecessors, (403460), 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) [2022-11-02 20:22:27,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79589 states to 79589 states and 403460 transitions. [2022-11-02 20:22:27,909 INFO L78 Accepts]: Start accepts. Automaton has 79589 states and 403460 transitions. Word has length 1 [2022-11-02 20:22:27,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:22:27,910 INFO L495 AbstractCegarLoop]: Abstraction has 79589 states and 403460 transitions. [2022-11-02 20:22:27,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-02 20:22:27,911 INFO L276 IsEmpty]: Start isEmpty. Operand 79589 states and 403460 transitions. [2022-11-02 20:22:27,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-02 20:22:27,911 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:22:27,911 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-02 20:22:27,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:22:27,912 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2022-11-02 20:22:27,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:22:27,913 INFO L85 PathProgramCache]: Analyzing trace with hash 70628, now seen corresponding path program 1 times [2022-11-02 20:22:27,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:22:27,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927867435] [2022-11-02 20:22:27,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:22:27,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:22:28,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:28,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:22:28,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:22:28,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927867435] [2022-11-02 20:22:28,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927867435] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:22:28,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:22:28,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-02 20:22:28,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808803524] [2022-11-02 20:22:28,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:22:28,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:22:28,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:22:28,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:22:28,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:22:28,240 INFO L87 Difference]: Start difference. First operand 79589 states and 403460 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-02 20:22:31,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:22:31,936 INFO L93 Difference]: Finished difference Result 159175 states and 806917 transitions. [2022-11-02 20:22:31,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:22:31,937 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) Word has length 2 [2022-11-02 20:22:31,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:22:33,942 INFO L225 Difference]: With dead ends: 159175 [2022-11-02 20:22:33,943 INFO L226 Difference]: Without dead ends: 159175 [2022-11-02 20:22:33,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:22:33,945 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 89 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:22:33,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 44 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 20:22:34,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159175 states. [2022-11-02 20:22:40,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159175 to 79590. [2022-11-02 20:22:40,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79590 states, 76780 states have (on average 5.2547798905965095) internal successors, (403462), 79589 states have internal predecessors, (403462), 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) [2022-11-02 20:22:40,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79590 states to 79590 states and 403462 transitions. [2022-11-02 20:22:40,945 INFO L78 Accepts]: Start accepts. Automaton has 79590 states and 403462 transitions. Word has length 2 [2022-11-02 20:22:40,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:22:40,945 INFO L495 AbstractCegarLoop]: Abstraction has 79590 states and 403462 transitions. [2022-11-02 20:22:40,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-02 20:22:40,946 INFO L276 IsEmpty]: Start isEmpty. Operand 79590 states and 403462 transitions. [2022-11-02 20:22:40,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-02 20:22:40,947 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:22:40,947 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-02 20:22:40,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:22:40,949 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2022-11-02 20:22:40,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:22:40,950 INFO L85 PathProgramCache]: Analyzing trace with hash 2192578, now seen corresponding path program 1 times [2022-11-02 20:22:40,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:22:40,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404509865] [2022-11-02 20:22:40,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:22:40,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:22:41,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:41,195 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:22:41,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:22:41,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404509865] [2022-11-02 20:22:41,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404509865] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:22:41,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209308740] [2022-11-02 20:22:41,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:22:41,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:22:41,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb64b23-9763-44a2-9299-1f7eed41c13e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:22:41,200 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb64b23-9763-44a2-9299-1f7eed41c13e/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:22:41,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb64b23-9763-44a2-9299-1f7eed41c13e/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 20:22:41,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:41,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:22:41,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:22:41,619 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:22:41,620 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:22:41,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [209308740] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:22:41,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:22:41,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2022-11-02 20:22:41,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098565826] [2022-11-02 20:22:41,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:22:41,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:22:41,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:22:41,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:22:41,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:22:41,636 INFO L87 Difference]: Start difference. First operand 79590 states and 403462 transitions. Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-11-02 20:22:46,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:22:46,218 INFO L93 Difference]: Finished difference Result 159174 states and 806916 transitions. [2022-11-02 20:22:46,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:22:46,218 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) Word has length 3 [2022-11-02 20:22:46,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:22:47,443 INFO L225 Difference]: With dead ends: 159174 [2022-11-02 20:22:47,444 INFO L226 Difference]: Without dead ends: 159174 [2022-11-02 20:22:47,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:22:47,446 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 179 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 20:22:47,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 66 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 20:22:48,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159174 states. [2022-11-02 20:22:53,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159174 to 79589. [2022-11-02 20:22:53,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79589 states, 76780 states have (on average 5.254766866371451) internal successors, (403461), 79588 states have internal predecessors, (403461), 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) [2022-11-02 20:22:54,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79589 states to 79589 states and 403461 transitions. [2022-11-02 20:22:54,097 INFO L78 Accepts]: Start accepts. Automaton has 79589 states and 403461 transitions. Word has length 3 [2022-11-02 20:22:54,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:22:54,098 INFO L495 AbstractCegarLoop]: Abstraction has 79589 states and 403461 transitions. [2022-11-02 20:22:54,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-11-02 20:22:54,098 INFO L276 IsEmpty]: Start isEmpty. Operand 79589 states and 403461 transitions. [2022-11-02 20:22:54,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-02 20:22:54,099 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:22:54,099 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-02 20:22:54,144 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb64b23-9763-44a2-9299-1f7eed41c13e/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-02 20:22:54,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb64b23-9763-44a2-9299-1f7eed41c13e/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:22:54,327 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2022-11-02 20:22:54,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:22:54,327 INFO L85 PathProgramCache]: Analyzing trace with hash 2192579, now seen corresponding path program 1 times [2022-11-02 20:22:54,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:22:54,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052090145] [2022-11-02 20:22:54,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:22:54,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:22:54,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:54,405 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:22:54,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:22:54,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052090145] [2022-11-02 20:22:54,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052090145] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:22:54,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390523760] [2022-11-02 20:22:54,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:22:54,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:22:54,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb64b23-9763-44a2-9299-1f7eed41c13e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:22:54,408 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb64b23-9763-44a2-9299-1f7eed41c13e/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:22:54,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb64b23-9763-44a2-9299-1f7eed41c13e/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 20:22:54,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:54,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:22:54,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:22:54,744 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:22:54,744 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:22:54,766 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:22:54,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390523760] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:22:54,767 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:22:54,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2022-11-02 20:22:54,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669697307] [2022-11-02 20:22:54,768 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:22:54,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:22:54,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:22:54,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:22:54,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:22:54,770 INFO L87 Difference]: Start difference. First operand 79589 states and 403461 transitions. Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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)