./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_af71ece3-d3d4-43ad-a06f-95606efb4877/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af71ece3-d3d4-43ad-a06f-95606efb4877/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af71ece3-d3d4-43ad-a06f-95606efb4877/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af71ece3-d3d4-43ad-a06f-95606efb4877/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af71ece3-d3d4-43ad-a06f-95606efb4877/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af71ece3-d3d4-43ad-a06f-95606efb4877/bin/uautomizer-ZsLfNo2U6R --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 0b48bde914fb7ebeda4cbd6fd329f7fd1281e3c3e233b6f5149c7b66a2f709ab --- 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-38b53e6 [2022-11-25 18:00:35,737 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:00:35,739 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:00:35,775 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:00:35,776 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:00:35,777 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:00:35,779 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:00:35,784 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:00:35,785 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:00:35,787 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:00:35,789 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:00:35,791 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:00:35,792 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:00:35,795 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:00:35,799 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:00:35,801 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:00:35,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:00:35,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:00:35,810 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:00:35,812 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:00:35,815 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:00:35,816 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:00:35,818 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:00:35,820 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:00:35,823 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:00:35,829 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:00:35,830 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:00:35,831 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:00:35,832 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:00:35,833 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:00:35,835 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:00:35,836 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:00:35,838 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:00:35,839 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:00:35,841 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:00:35,842 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:00:35,843 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:00:35,843 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:00:35,843 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:00:35,844 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:00:35,846 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:00:35,847 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af71ece3-d3d4-43ad-a06f-95606efb4877/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 18:00:35,878 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:00:35,878 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:00:35,879 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:00:35,879 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:00:35,880 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:00:35,880 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:00:35,881 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:00:35,881 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:00:35,882 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:00:35,882 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:00:35,887 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:00:35,887 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:00:35,887 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:00:35,887 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:00:35,888 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:00:35,888 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:00:35,888 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:00:35,888 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:00:35,889 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 18:00:35,889 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:00:35,889 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:00:35,889 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:00:35,889 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:00:35,890 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:00:35,890 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:00:35,890 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:00:35,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:00:35,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:00:35,891 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:00:35,891 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:00:35,891 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:00:35,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:00:35,892 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:00:35,892 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:00:35,892 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:00:35,893 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:00:35,893 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af71ece3-d3d4-43ad-a06f-95606efb4877/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af71ece3-d3d4-43ad-a06f-95606efb4877/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b48bde914fb7ebeda4cbd6fd329f7fd1281e3c3e233b6f5149c7b66a2f709ab [2022-11-25 18:00:36,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:00:36,192 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:00:36,195 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:00:36,196 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:00:36,197 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:00:36,214 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af71ece3-d3d4-43ad-a06f-95606efb4877/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c [2022-11-25 18:00:39,233 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:00:39,410 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:00:39,411 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af71ece3-d3d4-43ad-a06f-95606efb4877/sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c [2022-11-25 18:00:39,418 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af71ece3-d3d4-43ad-a06f-95606efb4877/bin/uautomizer-ZsLfNo2U6R/data/3ec85aa83/464ff9e37e9d4035bf4398a77bc73a5e/FLAGbe9ee7147 [2022-11-25 18:00:39,432 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af71ece3-d3d4-43ad-a06f-95606efb4877/bin/uautomizer-ZsLfNo2U6R/data/3ec85aa83/464ff9e37e9d4035bf4398a77bc73a5e [2022-11-25 18:00:39,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:00:39,436 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:00:39,438 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:00:39,438 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:00:39,441 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:00:39,442 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:00:39" (1/1) ... [2022-11-25 18:00:39,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21105b6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:39, skipping insertion in model container [2022-11-25 18:00:39,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:00:39" (1/1) ... [2022-11-25 18:00:39,452 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:00:39,481 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:00:39,637 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_af71ece3-d3d4-43ad-a06f-95606efb4877/sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c[2514,2527] [2022-11-25 18:00:39,643 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:00:39,652 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:00:39,675 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_af71ece3-d3d4-43ad-a06f-95606efb4877/sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c[2514,2527] [2022-11-25 18:00:39,678 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:00:39,691 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:00:39,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:39 WrapperNode [2022-11-25 18:00:39,692 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:00:39,693 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:00:39,693 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:00:39,693 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:00:39,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:39" (1/1) ... [2022-11-25 18:00:39,706 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:39" (1/1) ... [2022-11-25 18:00:39,732 INFO L138 Inliner]: procedures = 23, calls = 30, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 205 [2022-11-25 18:00:39,733 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:00:39,733 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:00:39,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:00:39,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:00:39,743 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:39" (1/1) ... [2022-11-25 18:00:39,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:39" (1/1) ... [2022-11-25 18:00:39,746 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:39" (1/1) ... [2022-11-25 18:00:39,747 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:39" (1/1) ... [2022-11-25 18:00:39,753 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:39" (1/1) ... [2022-11-25 18:00:39,755 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:39" (1/1) ... [2022-11-25 18:00:39,757 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:39" (1/1) ... [2022-11-25 18:00:39,759 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:39" (1/1) ... [2022-11-25 18:00:39,762 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:00:39,762 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:00:39,763 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:00:39,763 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:00:39,764 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:39" (1/1) ... [2022-11-25 18:00:39,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:00:39,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af71ece3-d3d4-43ad-a06f-95606efb4877/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:00:39,803 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af71ece3-d3d4-43ad-a06f-95606efb4877/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:00:39,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af71ece3-d3d4-43ad-a06f-95606efb4877/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:00:39,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:00:39,844 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-25 18:00:39,844 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-25 18:00:39,845 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-25 18:00:39,845 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-25 18:00:39,845 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-25 18:00:39,845 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-25 18:00:39,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:00:39,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:00:39,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 18:00:39,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:00:39,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:00:39,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 18:00:39,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:00:39,848 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 18:00:39,956 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:00:39,964 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:00:40,455 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:00:40,467 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:00:40,467 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 18:00:40,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:00:40 BoogieIcfgContainer [2022-11-25 18:00:40,469 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:00:40,472 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:00:40,472 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:00:40,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:00:40,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:00:39" (1/3) ... [2022-11-25 18:00:40,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56067601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:00:40, skipping insertion in model container [2022-11-25 18:00:40,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:39" (2/3) ... [2022-11-25 18:00:40,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56067601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:00:40, skipping insertion in model container [2022-11-25 18:00:40,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:00:40" (3/3) ... [2022-11-25 18:00:40,478 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-trans.wvr.c [2022-11-25 18:00:40,487 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 18:00:40,497 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:00:40,498 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-25 18:00:40,498 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 18:00:40,627 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-25 18:00:40,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 268 places, 277 transitions, 578 flow [2022-11-25 18:00:40,849 INFO L130 PetriNetUnfolder]: 19/274 cut-off events. [2022-11-25 18:00:40,850 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-25 18:00:40,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 287 conditions, 274 events. 19/274 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 727 event pairs, 0 based on Foata normal form. 0/237 useless extension candidates. Maximal degree in co-relation 205. Up to 2 conditions per place. [2022-11-25 18:00:40,862 INFO L82 GeneralOperation]: Start removeDead. Operand has 268 places, 277 transitions, 578 flow [2022-11-25 18:00:40,877 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 245 places, 253 transitions, 521 flow [2022-11-25 18:00:40,882 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 18:00:40,913 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 245 places, 253 transitions, 521 flow [2022-11-25 18:00:40,916 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 245 places, 253 transitions, 521 flow [2022-11-25 18:00:40,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 245 places, 253 transitions, 521 flow [2022-11-25 18:00:41,027 INFO L130 PetriNetUnfolder]: 18/253 cut-off events. [2022-11-25 18:00:41,027 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 18:00:41,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 253 events. 18/253 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 714 event pairs, 0 based on Foata normal form. 0/217 useless extension candidates. Maximal degree in co-relation 205. Up to 2 conditions per place. [2022-11-25 18:00:41,088 INFO L119 LiptonReduction]: Number of co-enabled transitions 27528 [2022-11-25 18:00:58,003 INFO L134 LiptonReduction]: Checked pairs total: 26547 [2022-11-25 18:00:58,004 INFO L136 LiptonReduction]: Total number of compositions: 337 [2022-11-25 18:00:58,021 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:00:58,027 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;@3d43bde3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:00:58,028 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2022-11-25 18:00:58,031 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2022-11-25 18:00:58,031 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:00:58,031 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:00:58,032 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 18:00:58,032 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-11-25 18:00:58,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:00:58,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1153643, now seen corresponding path program 1 times [2022-11-25 18:00:58,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:00:58,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709074508] [2022-11-25 18:00:58,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:00:58,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:00:58,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:00:58,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:00:58,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:00:58,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709074508] [2022-11-25 18:00:58,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709074508] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:00:58,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:00:58,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 18:00:58,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063158344] [2022-11-25 18:00:58,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:00:58,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 18:00:58,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:00:58,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 18:00:58,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:00:58,252 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 614 [2022-11-25 18:00:58,258 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 79 flow. Second operand has 2 states, 2 states have (on average 264.5) internal successors, (529), 2 states have internal predecessors, (529), 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) [2022-11-25 18:00:58,258 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:00:58,259 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 614 [2022-11-25 18:00:58,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:00:58,760 INFO L130 PetriNetUnfolder]: 1125/1726 cut-off events. [2022-11-25 18:00:58,761 INFO L131 PetriNetUnfolder]: For 102/102 co-relation queries the response was YES. [2022-11-25 18:00:58,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3585 conditions, 1726 events. 1125/1726 cut-off events. For 102/102 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 8146 event pairs, 1125 based on Foata normal form. 0/654 useless extension candidates. Maximal degree in co-relation 3104. Up to 1727 conditions per place. [2022-11-25 18:00:58,774 INFO L137 encePairwiseOnDemand]: 608/614 looper letters, 26 selfloop transitions, 0 changer transitions 0/26 dead transitions. [2022-11-25 18:00:58,775 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 26 transitions, 119 flow [2022-11-25 18:00:58,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:00:58,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 18:00:58,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 558 transitions. [2022-11-25 18:00:58,792 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4543973941368078 [2022-11-25 18:00:58,793 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 558 transitions. [2022-11-25 18:00:58,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 558 transitions. [2022-11-25 18:00:58,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:00:58,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 558 transitions. [2022-11-25 18:00:58,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 279.0) internal successors, (558), 2 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:58,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 614.0) internal successors, (1842), 3 states have internal predecessors, (1842), 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) [2022-11-25 18:00:58,810 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 614.0) internal successors, (1842), 3 states have internal predecessors, (1842), 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) [2022-11-25 18:00:58,812 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 79 flow. Second operand 2 states and 558 transitions. [2022-11-25 18:00:58,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 26 transitions, 119 flow [2022-11-25 18:00:58,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 26 transitions, 110 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-25 18:00:58,819 INFO L231 Difference]: Finished difference. Result has 32 places, 26 transitions, 58 flow [2022-11-25 18:00:58,821 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=614, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=58, PETRI_PLACES=32, PETRI_TRANSITIONS=26} [2022-11-25 18:00:58,825 INFO L288 CegarLoopForPetriNet]: 42 programPoint places, -10 predicate places. [2022-11-25 18:00:58,825 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 26 transitions, 58 flow [2022-11-25 18:00:58,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 264.5) internal successors, (529), 2 states have internal predecessors, (529), 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) [2022-11-25 18:00:58,826 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:00:58,826 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 18:00:58,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:00:58,827 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-11-25 18:00:58,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:00:58,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1153702, now seen corresponding path program 1 times [2022-11-25 18:00:58,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:00:58,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605716032] [2022-11-25 18:00:58,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:00:58,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:00:58,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:00:59,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:00:59,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:00:59,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605716032] [2022-11-25 18:00:59,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605716032] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:00:59,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:00:59,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 18:00:59,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420980633] [2022-11-25 18:00:59,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:00:59,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:00:59,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:00:59,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:00:59,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:00:59,021 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 614 [2022-11-25 18:00:59,023 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 26 transitions, 58 flow. Second operand has 3 states, 3 states have (on average 262.0) internal successors, (786), 3 states have internal predecessors, (786), 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) [2022-11-25 18:00:59,023 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:00:59,023 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 614 [2022-11-25 18:00:59,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:00:59,328 INFO L130 PetriNetUnfolder]: 777/1210 cut-off events. [2022-11-25 18:00:59,329 INFO L131 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2022-11-25 18:00:59,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2479 conditions, 1210 events. 777/1210 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 5350 event pairs, 777 based on Foata normal form. 0/500 useless extension candidates. Maximal degree in co-relation 2476. Up to 1210 conditions per place. [2022-11-25 18:00:59,336 INFO L137 encePairwiseOnDemand]: 611/614 looper letters, 23 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2022-11-25 18:00:59,336 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 24 transitions, 102 flow [2022-11-25 18:00:59,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:00:59,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:00:59,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 809 transitions. [2022-11-25 18:00:59,339 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43919652551574373 [2022-11-25 18:00:59,339 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 809 transitions. [2022-11-25 18:00:59,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 809 transitions. [2022-11-25 18:00:59,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:00:59,340 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 809 transitions. [2022-11-25 18:00:59,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 269.6666666666667) internal successors, (809), 3 states have internal predecessors, (809), 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) [2022-11-25 18:00:59,346 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 614.0) internal successors, (2456), 4 states have internal predecessors, (2456), 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) [2022-11-25 18:00:59,348 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 614.0) internal successors, (2456), 4 states have internal predecessors, (2456), 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) [2022-11-25 18:00:59,348 INFO L175 Difference]: Start difference. First operand has 32 places, 26 transitions, 58 flow. Second operand 3 states and 809 transitions. [2022-11-25 18:00:59,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 24 transitions, 102 flow [2022-11-25 18:00:59,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 24 transitions, 102 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 18:00:59,350 INFO L231 Difference]: Finished difference. Result has 32 places, 24 transitions, 56 flow [2022-11-25 18:00:59,350 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=614, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=32, PETRI_TRANSITIONS=24} [2022-11-25 18:00:59,351 INFO L288 CegarLoopForPetriNet]: 42 programPoint places, -10 predicate places. [2022-11-25 18:00:59,351 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 24 transitions, 56 flow [2022-11-25 18:00:59,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 262.0) internal successors, (786), 3 states have internal predecessors, (786), 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) [2022-11-25 18:00:59,352 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:00:59,352 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 18:00:59,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 18:00:59,353 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-11-25 18:00:59,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:00:59,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1153705, now seen corresponding path program 1 times [2022-11-25 18:00:59,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:00:59,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586319038] [2022-11-25 18:00:59,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:00:59,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:00:59,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:00:59,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:00:59,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:00:59,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586319038] [2022-11-25 18:00:59,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586319038] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:00:59,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:00:59,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 18:00:59,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626287183] [2022-11-25 18:00:59,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:00:59,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:00:59,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:00:59,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:00:59,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:00:59,480 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 614 [2022-11-25 18:00:59,481 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 24 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 262.0) internal successors, (786), 3 states have internal predecessors, (786), 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) [2022-11-25 18:00:59,481 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:00:59,481 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 614 [2022-11-25 18:00:59,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:00:59,673 INFO L130 PetriNetUnfolder]: 527/836 cut-off events. [2022-11-25 18:00:59,673 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-11-25 18:00:59,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1722 conditions, 836 events. 527/836 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 3456 event pairs, 527 based on Foata normal form. 0/382 useless extension candidates. Maximal degree in co-relation 1718. Up to 836 conditions per place. [2022-11-25 18:00:59,678 INFO L137 encePairwiseOnDemand]: 611/614 looper letters, 21 selfloop transitions, 1 changer transitions 0/22 dead transitions. [2022-11-25 18:00:59,679 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 22 transitions, 96 flow [2022-11-25 18:00:59,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:00:59,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:00:59,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 807 transitions. [2022-11-25 18:00:59,682 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4381107491856677 [2022-11-25 18:00:59,682 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 807 transitions. [2022-11-25 18:00:59,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 807 transitions. [2022-11-25 18:00:59,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:00:59,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 807 transitions. [2022-11-25 18:00:59,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 269.0) internal successors, (807), 3 states have internal predecessors, (807), 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) [2022-11-25 18:00:59,688 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 614.0) internal successors, (2456), 4 states have internal predecessors, (2456), 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) [2022-11-25 18:00:59,689 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 614.0) internal successors, (2456), 4 states have internal predecessors, (2456), 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) [2022-11-25 18:00:59,690 INFO L175 Difference]: Start difference. First operand has 32 places, 24 transitions, 56 flow. Second operand 3 states and 807 transitions. [2022-11-25 18:00:59,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 22 transitions, 96 flow [2022-11-25 18:00:59,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 22 transitions, 95 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 18:00:59,691 INFO L231 Difference]: Finished difference. Result has 31 places, 22 transitions, 53 flow [2022-11-25 18:00:59,691 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=614, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=53, PETRI_PLACES=31, PETRI_TRANSITIONS=22} [2022-11-25 18:00:59,692 INFO L288 CegarLoopForPetriNet]: 42 programPoint places, -11 predicate places. [2022-11-25 18:00:59,692 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 22 transitions, 53 flow [2022-11-25 18:00:59,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 262.0) internal successors, (786), 3 states have internal predecessors, (786), 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) [2022-11-25 18:00:59,693 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:00:59,693 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 18:00:59,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 18:00:59,694 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-11-25 18:00:59,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:00:59,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1153703, now seen corresponding path program 1 times [2022-11-25 18:00:59,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:00:59,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522066454] [2022-11-25 18:00:59,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:00:59,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:00:59,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:00:59,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:00:59,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:00:59,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522066454] [2022-11-25 18:00:59,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522066454] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:00:59,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:00:59,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 18:00:59,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111094376] [2022-11-25 18:00:59,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:00:59,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:00:59,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:00:59,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:00:59,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:00:59,816 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 614 [2022-11-25 18:00:59,817 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 22 transitions, 53 flow. Second operand has 3 states, 3 states have (on average 262.0) internal successors, (786), 3 states have internal predecessors, (786), 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) [2022-11-25 18:00:59,817 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:00:59,818 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 614 [2022-11-25 18:00:59,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:00:59,962 INFO L130 PetriNetUnfolder]: 323/528 cut-off events. [2022-11-25 18:00:59,962 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-25 18:00:59,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1096 conditions, 528 events. 323/528 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 1986 event pairs, 323 based on Foata normal form. 0/278 useless extension candidates. Maximal degree in co-relation 1092. Up to 528 conditions per place. [2022-11-25 18:00:59,966 INFO L137 encePairwiseOnDemand]: 611/614 looper letters, 19 selfloop transitions, 1 changer transitions 0/20 dead transitions. [2022-11-25 18:00:59,966 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 20 transitions, 89 flow [2022-11-25 18:00:59,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:00:59,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:00:59,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 805 transitions. [2022-11-25 18:00:59,969 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4370249728555918 [2022-11-25 18:00:59,969 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 805 transitions. [2022-11-25 18:00:59,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 805 transitions. [2022-11-25 18:00:59,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:00:59,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 805 transitions. [2022-11-25 18:00:59,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 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) [2022-11-25 18:00:59,976 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 614.0) internal successors, (2456), 4 states have internal predecessors, (2456), 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) [2022-11-25 18:00:59,977 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 614.0) internal successors, (2456), 4 states have internal predecessors, (2456), 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) [2022-11-25 18:00:59,978 INFO L175 Difference]: Start difference. First operand has 31 places, 22 transitions, 53 flow. Second operand 3 states and 805 transitions. [2022-11-25 18:00:59,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 20 transitions, 89 flow [2022-11-25 18:00:59,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 20 transitions, 88 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 18:00:59,979 INFO L231 Difference]: Finished difference. Result has 30 places, 20 transitions, 50 flow [2022-11-25 18:00:59,979 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=614, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=30, PETRI_TRANSITIONS=20} [2022-11-25 18:00:59,980 INFO L288 CegarLoopForPetriNet]: 42 programPoint places, -12 predicate places. [2022-11-25 18:00:59,980 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 20 transitions, 50 flow [2022-11-25 18:00:59,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 262.0) internal successors, (786), 3 states have internal predecessors, (786), 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) [2022-11-25 18:00:59,981 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:00:59,981 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 18:00:59,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 18:00:59,981 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-11-25 18:00:59,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:00:59,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1153660, now seen corresponding path program 1 times [2022-11-25 18:00:59,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:00:59,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462519547] [2022-11-25 18:00:59,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:00:59,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:00:59,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:01:00,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:01:00,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:01:00,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462519547] [2022-11-25 18:01:00,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462519547] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:01:00,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:01:00,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 18:01:00,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721116615] [2022-11-25 18:01:00,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:01:00,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:01:00,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:01:00,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:01:00,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:01:00,029 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 614 [2022-11-25 18:01:00,030 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 20 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 262.0) internal successors, (786), 3 states have internal predecessors, (786), 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) [2022-11-25 18:01:00,030 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:01:00,030 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 614 [2022-11-25 18:01:00,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:01:00,123 INFO L130 PetriNetUnfolder]: 173/298 cut-off events. [2022-11-25 18:01:00,123 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-11-25 18:01:00,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 622 conditions, 298 events. 173/298 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 996 event pairs, 173 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 618. Up to 298 conditions per place. [2022-11-25 18:01:00,126 INFO L137 encePairwiseOnDemand]: 611/614 looper letters, 17 selfloop transitions, 1 changer transitions 0/18 dead transitions. [2022-11-25 18:01:00,126 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 18 transitions, 82 flow [2022-11-25 18:01:00,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:01:00,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:01:00,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 803 transitions. [2022-11-25 18:01:00,129 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43593919652551577 [2022-11-25 18:01:00,129 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 803 transitions. [2022-11-25 18:01:00,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 803 transitions. [2022-11-25 18:01:00,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:01:00,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 803 transitions. [2022-11-25 18:01:00,132 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 267.6666666666667) internal successors, (803), 3 states have internal predecessors, (803), 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) [2022-11-25 18:01:00,135 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 614.0) internal successors, (2456), 4 states have internal predecessors, (2456), 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) [2022-11-25 18:01:00,137 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 614.0) internal successors, (2456), 4 states have internal predecessors, (2456), 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) [2022-11-25 18:01:00,137 INFO L175 Difference]: Start difference. First operand has 30 places, 20 transitions, 50 flow. Second operand 3 states and 803 transitions. [2022-11-25 18:01:00,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 18 transitions, 82 flow [2022-11-25 18:01:00,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 18 transitions, 81 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 18:01:00,138 INFO L231 Difference]: Finished difference. Result has 29 places, 18 transitions, 47 flow [2022-11-25 18:01:00,139 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=614, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=47, PETRI_PLACES=29, PETRI_TRANSITIONS=18} [2022-11-25 18:01:00,139 INFO L288 CegarLoopForPetriNet]: 42 programPoint places, -13 predicate places. [2022-11-25 18:01:00,139 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 18 transitions, 47 flow [2022-11-25 18:01:00,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 262.0) internal successors, (786), 3 states have internal predecessors, (786), 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) [2022-11-25 18:01:00,140 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:01:00,141 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 18:01:00,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 18:01:00,141 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-11-25 18:01:00,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:01:00,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1108644755, now seen corresponding path program 1 times [2022-11-25 18:01:00,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:01:00,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823256018] [2022-11-25 18:01:00,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:01:00,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:01:00,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:01:00,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:01:00,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:01:00,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823256018] [2022-11-25 18:01:00,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823256018] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:01:00,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:01:00,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 18:01:00,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221881937] [2022-11-25 18:01:00,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:01:00,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:01:00,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:01:00,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:01:00,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:01:00,188 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 614 [2022-11-25 18:01:00,189 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 18 transitions, 47 flow. Second operand has 3 states, 3 states have (on average 262.6666666666667) internal successors, (788), 3 states have internal predecessors, (788), 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) [2022-11-25 18:01:00,190 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:01:00,190 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 614 [2022-11-25 18:01:00,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:01:00,276 INFO L130 PetriNetUnfolder]: 93/170 cut-off events. [2022-11-25 18:01:00,276 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-25 18:01:00,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 363 conditions, 170 events. 93/170 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 468 event pairs, 93 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 359. Up to 170 conditions per place. [2022-11-25 18:01:00,278 INFO L137 encePairwiseOnDemand]: 611/614 looper letters, 15 selfloop transitions, 1 changer transitions 0/16 dead transitions. [2022-11-25 18:01:00,278 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 16 transitions, 75 flow [2022-11-25 18:01:00,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:01:00,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:01:00,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 801 transitions. [2022-11-25 18:01:00,281 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43485342019543977 [2022-11-25 18:01:00,281 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 801 transitions. [2022-11-25 18:01:00,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 801 transitions. [2022-11-25 18:01:00,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:01:00,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 801 transitions. [2022-11-25 18:01:00,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 267.0) internal successors, (801), 3 states have internal predecessors, (801), 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) [2022-11-25 18:01:00,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 614.0) internal successors, (2456), 4 states have internal predecessors, (2456), 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) [2022-11-25 18:01:00,289 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 614.0) internal successors, (2456), 4 states have internal predecessors, (2456), 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) [2022-11-25 18:01:00,289 INFO L175 Difference]: Start difference. First operand has 29 places, 18 transitions, 47 flow. Second operand 3 states and 801 transitions. [2022-11-25 18:01:00,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 16 transitions, 75 flow [2022-11-25 18:01:00,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 16 transitions, 74 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 18:01:00,290 INFO L231 Difference]: Finished difference. Result has 28 places, 16 transitions, 44 flow [2022-11-25 18:01:00,290 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=614, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=44, PETRI_PLACES=28, PETRI_TRANSITIONS=16} [2022-11-25 18:01:00,291 INFO L288 CegarLoopForPetriNet]: 42 programPoint places, -14 predicate places. [2022-11-25 18:01:00,291 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 16 transitions, 44 flow [2022-11-25 18:01:00,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 262.6666666666667) internal successors, (788), 3 states have internal predecessors, (788), 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) [2022-11-25 18:01:00,292 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:01:00,292 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 18:01:00,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 18:01:00,293 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-11-25 18:01:00,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:01:00,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1108644715, now seen corresponding path program 1 times [2022-11-25 18:01:00,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:01:00,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850985882] [2022-11-25 18:01:00,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:01:00,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:01:00,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:01:00,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:01:00,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:01:00,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850985882] [2022-11-25 18:01:00,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850985882] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:01:00,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:01:00,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 18:01:00,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740691403] [2022-11-25 18:01:00,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:01:00,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:01:00,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:01:00,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:01:00,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:01:00,339 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 614 [2022-11-25 18:01:00,340 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 16 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 262.6666666666667) internal successors, (788), 3 states have internal predecessors, (788), 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) [2022-11-25 18:01:00,341 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:01:00,341 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 614 [2022-11-25 18:01:00,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:01:00,388 INFO L130 PetriNetUnfolder]: 37/78 cut-off events. [2022-11-25 18:01:00,388 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 18:01:00,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 78 events. 37/78 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 150 event pairs, 37 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 172. Up to 78 conditions per place. [2022-11-25 18:01:00,389 INFO L137 encePairwiseOnDemand]: 611/614 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2022-11-25 18:01:00,389 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 14 transitions, 68 flow [2022-11-25 18:01:00,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:01:00,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:01:00,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 799 transitions. [2022-11-25 18:01:00,392 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43376764386536376 [2022-11-25 18:01:00,392 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 799 transitions. [2022-11-25 18:01:00,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 799 transitions. [2022-11-25 18:01:00,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:01:00,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 799 transitions. [2022-11-25 18:01:00,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 266.3333333333333) internal successors, (799), 3 states have internal predecessors, (799), 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) [2022-11-25 18:01:00,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 614.0) internal successors, (2456), 4 states have internal predecessors, (2456), 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) [2022-11-25 18:01:00,399 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 614.0) internal successors, (2456), 4 states have internal predecessors, (2456), 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) [2022-11-25 18:01:00,399 INFO L175 Difference]: Start difference. First operand has 28 places, 16 transitions, 44 flow. Second operand 3 states and 799 transitions. [2022-11-25 18:01:00,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 14 transitions, 68 flow [2022-11-25 18:01:00,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 14 transitions, 67 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 18:01:00,400 INFO L231 Difference]: Finished difference. Result has 27 places, 0 transitions, 0 flow [2022-11-25 18:01:00,400 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=614, PETRI_DIFFERENCE_MINUEND_FLOW=39, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=27, PETRI_TRANSITIONS=0} [2022-11-25 18:01:00,401 INFO L288 CegarLoopForPetriNet]: 42 programPoint places, -15 predicate places. [2022-11-25 18:01:00,401 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 0 transitions, 0 flow [2022-11-25 18:01:00,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 262.6666666666667) internal successors, (788), 3 states have internal predecessors, (788), 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) [2022-11-25 18:01:00,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 39 remaining) [2022-11-25 18:01:00,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 39 remaining) [2022-11-25 18:01:00,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 39 remaining) [2022-11-25 18:01:00,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 39 remaining) [2022-11-25 18:01:00,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 39 remaining) [2022-11-25 18:01:00,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 39 remaining) [2022-11-25 18:01:00,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 39 remaining) [2022-11-25 18:01:00,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 39 remaining) [2022-11-25 18:01:00,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 39 remaining) [2022-11-25 18:01:00,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 39 remaining) [2022-11-25 18:01:00,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 39 remaining) [2022-11-25 18:01:00,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 39 remaining) [2022-11-25 18:01:00,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 39 remaining) [2022-11-25 18:01:00,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 39 remaining) [2022-11-25 18:01:00,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 39 remaining) [2022-11-25 18:01:00,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 39 remaining) [2022-11-25 18:01:00,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 39 remaining) [2022-11-25 18:01:00,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 39 remaining) [2022-11-25 18:01:00,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 39 remaining) [2022-11-25 18:01:00,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 39 remaining) [2022-11-25 18:01:00,410 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 39 remaining) [2022-11-25 18:01:00,410 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 39 remaining) [2022-11-25 18:01:00,410 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 39 remaining) [2022-11-25 18:01:00,410 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 39 remaining) [2022-11-25 18:01:00,411 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 39 remaining) [2022-11-25 18:01:00,411 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 39 remaining) [2022-11-25 18:01:00,411 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 39 remaining) [2022-11-25 18:01:00,411 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 39 remaining) [2022-11-25 18:01:00,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 39 remaining) [2022-11-25 18:01:00,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 39 remaining) [2022-11-25 18:01:00,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 39 remaining) [2022-11-25 18:01:00,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 39 remaining) [2022-11-25 18:01:00,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 39 remaining) [2022-11-25 18:01:00,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 39 remaining) [2022-11-25 18:01:00,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 39 remaining) [2022-11-25 18:01:00,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 39 remaining) [2022-11-25 18:01:00,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 39 remaining) [2022-11-25 18:01:00,414 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 39 remaining) [2022-11-25 18:01:00,414 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 39 remaining) [2022-11-25 18:01:00,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 18:01:00,414 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:01:00,420 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 18:01:00,420 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 18:01:00,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:01:00 BasicIcfg [2022-11-25 18:01:00,424 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 18:01:00,424 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:01:00,425 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:01:00,425 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:01:00,425 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:00:40" (3/4) ... [2022-11-25 18:01:00,428 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 18:01:00,434 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-25 18:01:00,434 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-25 18:01:00,434 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-25 18:01:00,438 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-11-25 18:01:00,439 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-25 18:01:00,439 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 18:01:00,439 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 18:01:00,472 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af71ece3-d3d4-43ad-a06f-95606efb4877/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 18:01:00,472 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:01:00,472 INFO L158 Benchmark]: Toolchain (without parser) took 21036.39ms. Allocated memory was 144.7MB in the beginning and 247.5MB in the end (delta: 102.8MB). Free memory was 102.2MB in the beginning and 144.4MB in the end (delta: -42.3MB). Peak memory consumption was 62.6MB. Max. memory is 16.1GB. [2022-11-25 18:01:00,473 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 100.7MB. Free memory was 75.2MB in the beginning and 75.1MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:01:00,473 INFO L158 Benchmark]: CACSL2BoogieTranslator took 254.74ms. Allocated memory is still 144.7MB. Free memory was 102.2MB in the beginning and 90.9MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 18:01:00,474 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.00ms. Allocated memory is still 144.7MB. Free memory was 90.9MB in the beginning and 88.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:01:00,474 INFO L158 Benchmark]: Boogie Preprocessor took 28.31ms. Allocated memory is still 144.7MB. Free memory was 88.5MB in the beginning and 87.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:01:00,474 INFO L158 Benchmark]: RCFGBuilder took 707.07ms. Allocated memory is still 144.7MB. Free memory was 87.1MB in the beginning and 105.7MB in the end (delta: -18.6MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2022-11-25 18:01:00,475 INFO L158 Benchmark]: TraceAbstraction took 19951.93ms. Allocated memory was 144.7MB in the beginning and 247.5MB in the end (delta: 102.8MB). Free memory was 105.1MB in the beginning and 147.6MB in the end (delta: -42.4MB). Peak memory consumption was 63.5MB. Max. memory is 16.1GB. [2022-11-25 18:01:00,475 INFO L158 Benchmark]: Witness Printer took 47.60ms. Allocated memory is still 247.5MB. Free memory was 147.6MB in the beginning and 144.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:01:00,477 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 100.7MB. Free memory was 75.2MB in the beginning and 75.1MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 254.74ms. Allocated memory is still 144.7MB. Free memory was 102.2MB in the beginning and 90.9MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.00ms. Allocated memory is still 144.7MB. Free memory was 90.9MB in the beginning and 88.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.31ms. Allocated memory is still 144.7MB. Free memory was 88.5MB in the beginning and 87.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 707.07ms. Allocated memory is still 144.7MB. Free memory was 87.1MB in the beginning and 105.7MB in the end (delta: -18.6MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. * TraceAbstraction took 19951.93ms. Allocated memory was 144.7MB in the beginning and 247.5MB in the end (delta: 102.8MB). Free memory was 105.1MB in the beginning and 147.6MB in the end (delta: -42.4MB). Peak memory consumption was 63.5MB. Max. memory is 16.1GB. * Witness Printer took 47.60ms. Allocated memory is still 247.5MB. Free memory was 147.6MB in the beginning and 144.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.1s, 245 PlacesBefore, 42 PlacesAfterwards, 253 TransitionsBefore, 32 TransitionsAfterwards, 27528 CoEnabledTransitionPairs, 8 FixpointIterations, 44 TrivialSequentialCompositions, 216 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 59 ConcurrentYvCompositions, 18 ChoiceCompositions, 337 TotalNumberOfCompositions, 26547 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 26547, independent: 26547, independent conditional: 0, independent unconditional: 26547, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 20058, independent: 20058, independent conditional: 0, independent unconditional: 20058, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 20058, independent: 20058, independent conditional: 0, independent unconditional: 20058, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 26547, independent: 6489, independent conditional: 0, independent unconditional: 6489, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 20058, unknown conditional: 0, unknown unconditional: 20058] , Statistics on independence cache: Total cache size (in pairs): 94, Positive cache size: 94, Positive conditional cache size: 0, Positive unconditional cache size: 94, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 433 locations, 39 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 19.8s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 17.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 147 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 110 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 174 IncrementalHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 6 mSDtfsCounter, 174 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 66 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-25 18:01:00,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af71ece3-d3d4-43ad-a06f-95606efb4877/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE