./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97061376-02f0-4a7c-a5cb-41a3bc1c1aa4/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97061376-02f0-4a7c-a5cb-41a3bc1c1aa4/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97061376-02f0-4a7c-a5cb-41a3bc1c1aa4/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97061376-02f0-4a7c-a5cb-41a3bc1c1aa4/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97061376-02f0-4a7c-a5cb-41a3bc1c1aa4/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97061376-02f0-4a7c-a5cb-41a3bc1c1aa4/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 54b834084fe1393c06cef2b14fb31f788537bd44a8744d5b4241cffc72e1d744 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:21:52,759 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:21:52,762 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:21:52,795 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:21:52,796 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:21:52,797 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:21:52,799 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:21:52,802 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:21:52,804 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:21:52,805 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:21:52,807 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:21:52,809 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:21:52,809 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:21:52,811 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:21:52,812 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:21:52,814 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:21:52,815 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:21:52,816 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:21:52,819 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:21:52,821 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:21:52,823 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:21:52,830 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:21:52,832 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:21:52,833 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:21:52,848 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:21:52,848 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:21:52,848 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:21:52,850 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:21:52,850 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:21:52,851 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:21:52,852 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:21:52,853 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:21:52,853 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:21:52,854 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:21:52,856 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:21:52,856 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:21:52,857 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:21:52,857 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:21:52,857 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:21:52,859 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:21:52,859 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:21:52,866 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97061376-02f0-4a7c-a5cb-41a3bc1c1aa4/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 11:21:52,912 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:21:52,913 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:21:52,913 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:21:52,913 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:21:52,914 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:21:52,914 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:21:52,915 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:21:52,915 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:21:52,915 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:21:52,916 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:21:52,943 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:21:52,943 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:21:52,943 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:21:52,944 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:21:52,944 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:21:52,944 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:21:52,944 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:21:52,945 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:21:52,945 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 11:21:52,945 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:21:52,945 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:21:52,946 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:21:52,946 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:21:52,947 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:21:52,947 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:21:52,947 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:21:52,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:21:52,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:21:52,949 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:21:52,949 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:21:52,950 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:21:52,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:21:52,950 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:21:52,951 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:21:52,951 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:21:52,951 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_97061376-02f0-4a7c-a5cb-41a3bc1c1aa4/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97061376-02f0-4a7c-a5cb-41a3bc1c1aa4/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54b834084fe1393c06cef2b14fb31f788537bd44a8744d5b4241cffc72e1d744 [2022-11-20 11:21:53,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:21:53,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:21:53,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:21:53,322 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:21:53,323 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:21:53,324 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97061376-02f0-4a7c-a5cb-41a3bc1c1aa4/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c [2022-11-20 11:21:56,782 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:21:57,008 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:21:57,009 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97061376-02f0-4a7c-a5cb-41a3bc1c1aa4/sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c [2022-11-20 11:21:57,016 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97061376-02f0-4a7c-a5cb-41a3bc1c1aa4/bin/uautomizer-ug76WZFUDN/data/7b688ee5d/5861c2921ecd4144b24aed4590a204a0/FLAG83d7f1c04 [2022-11-20 11:21:57,030 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97061376-02f0-4a7c-a5cb-41a3bc1c1aa4/bin/uautomizer-ug76WZFUDN/data/7b688ee5d/5861c2921ecd4144b24aed4590a204a0 [2022-11-20 11:21:57,033 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:21:57,034 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:21:57,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:21:57,035 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:21:57,051 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:21:57,052 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:21:57" (1/1) ... [2022-11-20 11:21:57,053 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66cce42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:21:57, skipping insertion in model container [2022-11-20 11:21:57,053 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:21:57" (1/1) ... [2022-11-20 11:21:57,061 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:21:57,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:21:57,260 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_97061376-02f0-4a7c-a5cb-41a3bc1c1aa4/sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c[3642,3655] [2022-11-20 11:21:57,268 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:21:57,278 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:21:57,306 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_97061376-02f0-4a7c-a5cb-41a3bc1c1aa4/sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c[3642,3655] [2022-11-20 11:21:57,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:21:57,332 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:21:57,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:21:57 WrapperNode [2022-11-20 11:21:57,332 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:21:57,334 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:21:57,334 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:21:57,334 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:21:57,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:21:57" (1/1) ... [2022-11-20 11:21:57,354 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:21:57" (1/1) ... [2022-11-20 11:21:57,388 INFO L138 Inliner]: procedures = 27, calls = 68, calls flagged for inlining = 18, calls inlined = 24, statements flattened = 365 [2022-11-20 11:21:57,388 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:21:57,389 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:21:57,389 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:21:57,389 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:21:57,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:21:57" (1/1) ... [2022-11-20 11:21:57,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:21:57" (1/1) ... [2022-11-20 11:21:57,405 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:21:57" (1/1) ... [2022-11-20 11:21:57,405 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:21:57" (1/1) ... [2022-11-20 11:21:57,432 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:21:57" (1/1) ... [2022-11-20 11:21:57,438 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:21:57" (1/1) ... [2022-11-20 11:21:57,465 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:21:57" (1/1) ... [2022-11-20 11:21:57,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:21:57" (1/1) ... [2022-11-20 11:21:57,471 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:21:57,472 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:21:57,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:21:57,473 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:21:57,474 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:21:57" (1/1) ... [2022-11-20 11:21:57,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:21:57,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97061376-02f0-4a7c-a5cb-41a3bc1c1aa4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:21:57,519 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97061376-02f0-4a7c-a5cb-41a3bc1c1aa4/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:21:57,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97061376-02f0-4a7c-a5cb-41a3bc1c1aa4/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:21:57,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:21:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:21:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:21:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:21:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 11:21:57,581 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 11:21:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 11:21:57,582 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 11:21:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 11:21:57,582 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 11:21:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-20 11:21:57,583 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-20 11:21:57,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:21:57,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 11:21:57,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 11:21:57,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:21:57,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:21:57,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:21:57,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:21:57,587 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 11:21:57,738 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:21:57,741 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:21:58,604 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:21:59,416 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:21:59,416 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-20 11:21:59,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:21:59 BoogieIcfgContainer [2022-11-20 11:21:59,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:21:59,424 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:21:59,425 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:21:59,429 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:21:59,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:21:57" (1/3) ... [2022-11-20 11:21:59,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@319f2645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:21:59, skipping insertion in model container [2022-11-20 11:21:59,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:21:57" (2/3) ... [2022-11-20 11:21:59,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@319f2645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:21:59, skipping insertion in model container [2022-11-20 11:21:59,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:21:59" (3/3) ... [2022-11-20 11:21:59,434 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1.wvr.c [2022-11-20 11:21:59,446 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:21:59,457 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:21:59,457 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2022-11-20 11:21:59,457 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:21:59,736 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-20 11:21:59,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 243 places, 245 transitions, 522 flow [2022-11-20 11:21:59,979 INFO L130 PetriNetUnfolder]: 15/241 cut-off events. [2022-11-20 11:21:59,980 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-20 11:21:59,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 241 events. 15/241 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 259 event pairs, 0 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 194. Up to 2 conditions per place. [2022-11-20 11:21:59,988 INFO L82 GeneralOperation]: Start removeDead. Operand has 243 places, 245 transitions, 522 flow [2022-11-20 11:22:00,002 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 217 places, 218 transitions, 457 flow [2022-11-20 11:22:00,021 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:22:00,032 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;@4ec7ae0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:22:00,033 INFO L358 AbstractCegarLoop]: Starting to check reachability of 72 error locations. [2022-11-20 11:22:00,051 INFO L130 PetriNetUnfolder]: 1/61 cut-off events. [2022-11-20 11:22:00,051 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:22:00,052 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:22:00,052 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:22:00,053 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2022-11-20 11:22:00,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:22:00,059 INFO L85 PathProgramCache]: Analyzing trace with hash 84806038, now seen corresponding path program 1 times [2022-11-20 11:22:00,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:22:00,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541105740] [2022-11-20 11:22:00,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:22:00,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:22:00,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:00,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:22:00,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:22:00,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541105740] [2022-11-20 11:22:00,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541105740] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:22:00,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:22:00,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:22:00,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083143812] [2022-11-20 11:22:00,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:22:00,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:22:00,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:22:00,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:22:00,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:22:00,761 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 245 [2022-11-20 11:22:00,769 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 218 transitions, 457 flow. Second operand has 5 states, 5 states have (on average 155.4) internal successors, (777), 5 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:22:00,770 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:22:00,770 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 245 [2022-11-20 11:22:00,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:22:07,327 INFO L130 PetriNetUnfolder]: 9473/12832 cut-off events. [2022-11-20 11:22:07,328 INFO L131 PetriNetUnfolder]: For 1597/1599 co-relation queries the response was YES. [2022-11-20 11:22:07,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26734 conditions, 12832 events. 9473/12832 cut-off events. For 1597/1599 co-relation queries the response was YES. Maximal size of possible extension queue 1361. Compared 76244 event pairs, 7776 based on Foata normal form. 1701/5999 useless extension candidates. Maximal degree in co-relation 26156. Up to 12692 conditions per place. [2022-11-20 11:22:07,513 INFO L137 encePairwiseOnDemand]: 218/245 looper letters, 52 selfloop transitions, 5 changer transitions 4/196 dead transitions. [2022-11-20 11:22:07,513 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 196 transitions, 535 flow [2022-11-20 11:22:07,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:22:07,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 11:22:07,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 853 transitions. [2022-11-20 11:22:07,532 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6963265306122449 [2022-11-20 11:22:07,533 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 853 transitions. [2022-11-20 11:22:07,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 853 transitions. [2022-11-20 11:22:07,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:22:07,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 853 transitions. [2022-11-20 11:22:07,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 170.6) internal successors, (853), 5 states have internal predecessors, (853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:22:07,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 245.0) internal successors, (1470), 6 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:22:07,567 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 245.0) internal successors, (1470), 6 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:22:07,569 INFO L175 Difference]: Start difference. First operand has 217 places, 218 transitions, 457 flow. Second operand 5 states and 853 transitions. [2022-11-20 11:22:07,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 196 transitions, 535 flow [2022-11-20 11:22:07,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 196 transitions, 522 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-11-20 11:22:07,581 INFO L231 Difference]: Finished difference. Result has 201 places, 192 transitions, 402 flow [2022-11-20 11:22:07,583 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=402, PETRI_PLACES=201, PETRI_TRANSITIONS=192} [2022-11-20 11:22:07,588 INFO L288 CegarLoopForPetriNet]: 217 programPoint places, -16 predicate places. [2022-11-20 11:22:07,588 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 192 transitions, 402 flow [2022-11-20 11:22:07,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 155.4) internal successors, (777), 5 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:22:07,590 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:22:07,590 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:22:07,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:22:07,591 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2022-11-20 11:22:07,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:22:07,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1665979051, now seen corresponding path program 1 times [2022-11-20 11:22:07,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:22:07,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318868600] [2022-11-20 11:22:07,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:22:07,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:22:07,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:07,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:22:07,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:22:07,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318868600] [2022-11-20 11:22:07,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318868600] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:22:07,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:22:07,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:22:07,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700847566] [2022-11-20 11:22:07,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:22:07,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:22:07,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:22:07,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:22:07,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:22:07,806 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 245 [2022-11-20 11:22:07,808 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 192 transitions, 402 flow. Second operand has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:22:07,808 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:22:07,808 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 245 [2022-11-20 11:22:07,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:22:12,326 INFO L130 PetriNetUnfolder]: 9473/12827 cut-off events. [2022-11-20 11:22:12,326 INFO L131 PetriNetUnfolder]: For 401/403 co-relation queries the response was YES. [2022-11-20 11:22:12,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26258 conditions, 12827 events. 9473/12827 cut-off events. For 401/403 co-relation queries the response was YES. Maximal size of possible extension queue 1361. Compared 76504 event pairs, 7776 based on Foata normal form. 0/4298 useless extension candidates. Maximal degree in co-relation 26186. Up to 12678 conditions per place. [2022-11-20 11:22:12,472 INFO L137 encePairwiseOnDemand]: 241/245 looper letters, 41 selfloop transitions, 3 changer transitions 0/191 dead transitions. [2022-11-20 11:22:12,473 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 191 transitions, 488 flow [2022-11-20 11:22:12,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:22:12,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-20 11:22:12,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 741 transitions. [2022-11-20 11:22:12,476 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7561224489795918 [2022-11-20 11:22:12,476 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 741 transitions. [2022-11-20 11:22:12,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 741 transitions. [2022-11-20 11:22:12,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:22:12,478 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 741 transitions. [2022-11-20 11:22:12,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 185.25) internal successors, (741), 4 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:22:12,491 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 245.0) internal successors, (1225), 5 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:22:12,492 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 245.0) internal successors, (1225), 5 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:22:12,492 INFO L175 Difference]: Start difference. First operand has 201 places, 192 transitions, 402 flow. Second operand 4 states and 741 transitions. [2022-11-20 11:22:12,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 191 transitions, 488 flow [2022-11-20 11:22:12,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 191 transitions, 478 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 11:22:12,505 INFO L231 Difference]: Finished difference. Result has 195 places, 191 transitions, 396 flow [2022-11-20 11:22:12,506 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=396, PETRI_PLACES=195, PETRI_TRANSITIONS=191} [2022-11-20 11:22:12,507 INFO L288 CegarLoopForPetriNet]: 217 programPoint places, -22 predicate places. [2022-11-20 11:22:12,507 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 191 transitions, 396 flow [2022-11-20 11:22:12,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:22:12,508 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:22:12,508 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:22:12,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:22:12,509 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2022-11-20 11:22:12,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:22:12,510 INFO L85 PathProgramCache]: Analyzing trace with hash 567859042, now seen corresponding path program 1 times [2022-11-20 11:22:12,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:22:12,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195105609] [2022-11-20 11:22:12,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:22:12,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:22:12,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:12,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:22:12,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:22:12,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195105609] [2022-11-20 11:22:12,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195105609] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:22:12,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:22:12,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:22:12,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509596712] [2022-11-20 11:22:12,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:22:12,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:22:12,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:22:12,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:22:12,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:22:12,870 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 245 [2022-11-20 11:22:12,872 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 191 transitions, 396 flow. Second operand has 4 states, 4 states have (on average 175.5) internal successors, (702), 4 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:22:12,872 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:22:12,872 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 245 [2022-11-20 11:22:12,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:22:21,048 INFO L130 PetriNetUnfolder]: 18945/25570 cut-off events. [2022-11-20 11:22:21,048 INFO L131 PetriNetUnfolder]: For 798/802 co-relation queries the response was YES. [2022-11-20 11:22:21,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52424 conditions, 25570 events. 18945/25570 cut-off events. For 798/802 co-relation queries the response was YES. Maximal size of possible extension queue 1657. Compared 159670 event pairs, 15552 based on Foata normal form. 0/8514 useless extension candidates. Maximal degree in co-relation 52365. Up to 12684 conditions per place. [2022-11-20 11:22:21,285 INFO L137 encePairwiseOnDemand]: 239/245 looper letters, 86 selfloop transitions, 4 changer transitions 0/234 dead transitions. [2022-11-20 11:22:21,285 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 234 transitions, 670 flow [2022-11-20 11:22:21,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:22:21,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 11:22:21,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 962 transitions. [2022-11-20 11:22:21,289 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7853061224489796 [2022-11-20 11:22:21,290 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 962 transitions. [2022-11-20 11:22:21,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 962 transitions. [2022-11-20 11:22:21,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:22:21,291 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 962 transitions. [2022-11-20 11:22:21,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 192.4) internal successors, (962), 5 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:22:21,297 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 245.0) internal successors, (1470), 6 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:22:21,298 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 245.0) internal successors, (1470), 6 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:22:21,299 INFO L175 Difference]: Start difference. First operand has 195 places, 191 transitions, 396 flow. Second operand 5 states and 962 transitions. [2022-11-20 11:22:21,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 234 transitions, 670 flow [2022-11-20 11:22:21,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 234 transitions, 664 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-20 11:22:21,304 INFO L231 Difference]: Finished difference. Result has 199 places, 194 transitions, 420 flow [2022-11-20 11:22:21,305 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=420, PETRI_PLACES=199, PETRI_TRANSITIONS=194} [2022-11-20 11:22:21,306 INFO L288 CegarLoopForPetriNet]: 217 programPoint places, -18 predicate places. [2022-11-20 11:22:21,306 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 194 transitions, 420 flow [2022-11-20 11:22:21,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 175.5) internal successors, (702), 4 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:22:21,308 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:22:21,308 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:22:21,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:22:21,309 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2022-11-20 11:22:21,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:22:21,309 INFO L85 PathProgramCache]: Analyzing trace with hash -790888362, now seen corresponding path program 1 times [2022-11-20 11:22:21,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:22:21,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560808254] [2022-11-20 11:22:21,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:22:21,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:22:21,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:21,468 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:22:21,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:22:21,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560808254] [2022-11-20 11:22:21,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560808254] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:22:21,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165374332] [2022-11-20 11:22:21,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:22:21,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:22:21,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97061376-02f0-4a7c-a5cb-41a3bc1c1aa4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:22:21,475 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97061376-02f0-4a7c-a5cb-41a3bc1c1aa4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:22:21,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97061376-02f0-4a7c-a5cb-41a3bc1c1aa4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 11:22:21,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:21,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 11:22:21,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:22:21,856 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:22:21,856 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:22:21,958 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:22:21,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [165374332] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:22:21,959 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:22:21,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-20 11:22:21,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857782102] [2022-11-20 11:22:21,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:22:21,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 11:22:21,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:22:21,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 11:22:21,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-20 11:22:21,965 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 245 [2022-11-20 11:22:21,968 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 194 transitions, 420 flow. Second operand has 12 states, 12 states have (on average 176.66666666666666) internal successors, (2120), 12 states have internal predecessors, (2120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:22:21,969 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:22:21,969 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 245 [2022-11-20 11:22:21,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand